1
|
Khunsriraksakul C, Ziegler O, Liu D, Kulaylat AS, Coates MD. The Impact of Antispasmodic Use on Abdominal Pain and Opioid Use in Inflammatory Bowel Disease: A Population-Based Study. Aliment Pharmacol Ther 2025; 61:1944-1956. [PMID: 40211901 PMCID: PMC12116234 DOI: 10.1111/apt.70147] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2025] [Revised: 02/27/2025] [Accepted: 04/02/2025] [Indexed: 05/28/2025]
Abstract
BACKGROUND Patients with inflammatory bowel disease (IBD) are often prescribed antispasmodics for chronic abdominal pain. Large-scale data regarding efficacy and impact on clinical outcomes are lacking. AIM To examine the association between antispasmodic use and outcomes of abdominal pain and opioid use before and after propensity matching key demographic and clinical characteristics. METHODS We used TriNetX Diamond Network, a medical and claims database. Patients were stratified by baseline abdominal pain and opioid use. Secondary outcomes were corticosteroid use, IBD-related complications and surgeries, emergency room (ER) visits, hospitalisation and mortality. RESULTS We included 85,859 patients (median age 50; 53.8% female) with IBD; 5661 used antispasmodics. On follow-up, those with antispasmodic use had higher rates of abdominal pain and opioid use (p < 0.001) regardless of baseline abdominal pain or opioid use. After matching, 5629 patients remained per group. Patients who used antispasmodics had higher rates of abdominal pain at 1 month, regardless of baseline abdominal pain. Opioid-naïve patients who used antispasmodics had higher rates of opioid use at follow-up (1.1% vs. 0.2%; p < 0.001). The likelihood of corticosteroid use, clinic visits, ER visits and hospitalisation were higher in those with antispasmodic use. No differences in IBD-related complications, surgery or mortality were observed. CONCLUSIONS Antispasmodic use in patients with IBD was associated with increased abdominal pain and opioid use in opioid-naïve patients. Antispasmodic use was associated with increased likelihood of corticosteroid use, clinic and ER visits and hospitalisation.
Collapse
Affiliation(s)
- Chachrit Khunsriraksakul
- Department of Medicine, Johns Hopkins Hospital, Baltimore, MD
- Medical Scientist Training Program, Penn State College of Medicine, Hershey, PA
| | - Olivia Ziegler
- Department of General Surgery, Penn State College of Medicine, Hershey, PA
| | - Dajiang Liu
- Department of Public Health Sciences, Penn State College of Medicine, Hershey, PA
| | - Audrey S. Kulaylat
- Division of Colon and Rectal Surgery, Penn State College of Medicine, Hershey, PA
| | - Matthew D. Coates
- Division of Gastroenterology and Hepatology, Penn State College of Medicine, Hershey, PA
| |
Collapse
|
2
|
Mercadante S, Sapienza G, Cascio AL, Casuccio A. The Use of Opioids in an Acute Palliative Care Unit to Re-assess Prescriptions. Pain Ther 2025; 14:999-1006. [PMID: 40155566 PMCID: PMC12085417 DOI: 10.1007/s40122-025-00728-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2025] [Accepted: 03/11/2025] [Indexed: 04/01/2025] Open
Abstract
INTRODUCTION This study aimed to re-assess opioid prescriptions in an acute palliative care unit (APCU) 12 years after a previous audit. METHODS Consecutive patients with advanced cancer who were admitted to the APCU for a period of 5 months for uncontrolled pain were analyzed. Information regarding opioids, and route of administration, prescribed prior to admission, during admission, and at time of discharge was recorded. Opioids, doses, and routes were changed according to the clinical need to obtain the maximum benefit, individualizing the treatment. The opioid escalation index was calculated in milligrams (OEImg) and as a percentage (OEI%). RESULTS A total of 113 patients were assessed. The mean pain intensity at admission and at time of discharge was 6.4 (SD 1.8) and 2.3 (SD 1.4), respectively (P < 0.0005). The mean opioid dose expressed as oral morphine equivalent (OME) by patients who were receiving opioids before admission was 128 mg/day (SD 120). There was no statistical difference in OME between admission and discharge time. Sixty-one and 20 patients were prescribed a second and a third opioid/route, respectively. Mean OEI% and OEImg were 9.3% (SD = 22.5) and 4.0 mg/day (SD = 24.1), respectively. Only a minority of patients had a breakthrough pain prescription at admission. Intravenous morphine was more frequently prescribed at beginning, then replaced by oral morphine and fentanyl preparations at discharge. CONCLUSIONS An intensive and careful use of opioids in the APCU allows for the achievement of adequate analgesia in all examined patients within a short time, without increasing OME. These findings should encourage further studies in APCUs as well as in other palliative care settings.
Collapse
Affiliation(s)
- Sebastiano Mercadante
- Main Regional Center for Pain Relief and Supportive/Palliative Care, La Maddalena Cancer Center, Via San Lorenzo 312, 90147, Palermo, Italy.
| | - Giorgio Sapienza
- Main Regional Center for Pain Relief and Supportive/Palliative Care, La Maddalena Cancer Center, Via San Lorenzo 312, 90147, Palermo, Italy
| | - Alessio Lo Cascio
- Main Regional Center for Pain Relief and Supportive/Palliative Care, La Maddalena Cancer Center, Via San Lorenzo 312, 90147, Palermo, Italy
| | - Alessandra Casuccio
- Department of Health Promotion, Maternal and Infant Care, Internal Medicine and Medical Specialties, University of Palermo, 90127, Palermo, Italy
| |
Collapse
|
3
|
Shilpakar R, Anuj KC, Acharya B, Chapagain S, Pandey S, Neupane P, Poudel B, Dulal S, Poudel BDD. Comparison of the effectiveness of oral morphine versus oral tramadol on early pain control in opioid-naive patients with moderate cancer pain. Ecancermedicalscience 2025; 19:1864. [PMID: 40492220 PMCID: PMC12146575 DOI: 10.3332/ecancer.2025.1864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2024] [Indexed: 06/11/2025] Open
Abstract
Purpose The purpose of this study was to compare the efficacy of oral morphine (MOR) with oral tramadol (TRM) in control of pain as well as physical well-being in patients (pts) with moderate cancer pain (MCP) using the Edmonton Symptom Assessment Scale (ESAS). Methods An Institutional Review Board (IRB) approved randomised phase II trial was performed in opioid-naive pts with MCP as defined by pain score in numerical rating score (NRS) of 4-6. Patients were randomised to receive MOR syrup 5 mg 4 hourly or TRM 50 mg four times a day. Titration of dose was done in both groups for 3 days in case of inadequate pain control as per standard recommendation for MOR or until the maximum recommended daily dose for TRM. MOR was changed to prolonged release form on Day 4. The primary endpoint was the number of early responders, defined as pts with at least 20% reduction in pain intensity on NRS on Day 3. The secondary outcome was the number of patients with highly meaningful pain reduction, defined as a decrease in pain intensity on NRS by ≥5 and improvement in physical well-being with ESAS at Day 7. Results Sixty-eight pts consented and were randomised, 34 in each arm. The primary endpoint occurred in 94.1% pts in MOR and 55.9% in TRM (p < 0.001). The number of patients with highly meaningful pain reduction was significantly higher in MOR than in TRM (76.5% versus 32.35%; p < 0.001). Improvement in general physical well-being as assessed by ESAS was better in the MOR group. No difference in adverse effects was noted between the treatment arms. Conclusion In this study, MOR was superior to TRM in the control of pain with statistically significant differences in the primary and secondary endpoints. Therefore, early use of MOR skipping the World Health Organization sequential analgesic ladder for MCP may be a higher value option in resource-scarce country with limited access to healthcare.
Collapse
Affiliation(s)
- Ramila Shilpakar
- Department of Clinical Oncology, National Academy of Medical Sciences (NAMS), Bir Hospital, 44600, Kathmandu, Nepal
| | - KC Anuj
- Department of Clinical Oncology, National Academy of Medical Sciences (NAMS), Bir Hospital, 44600, Kathmandu, Nepal
| | - Bibek Acharya
- Department of Clinical Oncology, National Academy of Medical Sciences (NAMS), Bir Hospital, 44600, Kathmandu, Nepal
| | - Sandhya Chapagain
- Department of Clinical Oncology, National Academy of Medical Sciences (NAMS), Bir Hospital, 44600, Kathmandu, Nepal
| | - Shama Pandey
- Department of Clinical Oncology, National Academy of Medical Sciences (NAMS), Bir Hospital, 44600, Kathmandu, Nepal
| | - Prakash Neupane
- The University of Kansas Medical Center, 2330 Shawnee Mission Parkway, Westwood, Kansas City, KS 66205, USA
| | - Bishal Poudel
- Institute of Medicine, Tribhuvan University Teaching Hospital, 44600, Kathmandu, Nepal
| | - Soniya Dulal
- BP Koirala Institute of Health Sciences, 56705, Dharan, Nepal
| | | |
Collapse
|
4
|
Cameron MG, Kersten C. Prospective case series of neuropathic cancer pain in patients treated with an EGFR-inhibitor. Palliat Med 2022; 36:1154-1162. [PMID: 35656645 DOI: 10.1177/02692163221102003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Novel treatments of neuropathic pain are urgently needed. Rapid relief of neuropathic cancer pain in patients treated with epidermal growth factor receptor (EGFR) inhibitors have been reported. Experiments in rodent models confirm the pain relief and reveal novel mechanisms critically involving the EGFR. Clinical pain research is complicated and patients with advanced cancer are heterogeneous, often with complex, deteriorating clinical pictures, hampering feasibility of drug-trial procedures. ACTUAL CASE Prospective case series exploring the EGFR inhibition/neuropathic cancer pain association in order to inform planning clinical trials. POSSIBLE COURSES OF ACTION Symptom assessment method was tailored to what was ethical, feasible, and clinically relevant for each patient. FORMULATION OF A PLAN Patients with neuropathic cancer pain treated off-label with the monoclonal antibody panitumumab were studied to assess feasibility of different measurement tools. OUTCOME Fourteen of 20 patients (70%) experienced clinically significant pain relief. There was good concordance in patient and physician-reported outcomes. LESSONS Results support panitumumab's potential to be of significant benefit to patients with refractory neuropathic cancer pain. Findings also reinforce the difficulty of using conventional drug trial endpoints and designs in this population. VIEW Innovative research methods must be considered for much needed pivotal trials.
Collapse
Affiliation(s)
| | - Christian Kersten
- Department of Research, Sørlandet Hospital Trust, Kristiansand, Norway
| |
Collapse
|
5
|
Cameron MG, Kersten C. WITHDRAWN: Neuropathic Cancer Pain in Patients Treated With an EGFR-Inhibitor. J Pain Symptom Manage 2021:S0885-3924(21)00401-2. [PMID: 34161812 DOI: 10.1016/j.jpainsymman.2021.06.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 06/16/2021] [Indexed: 11/21/2022]
Abstract
This article has been withdrawn because of a publisher error. It should not have been posted.
Collapse
Affiliation(s)
| | - Christian Kersten
- Department of Research, Sørlandet Hospital Trust, Kristiansand, Norway
| |
Collapse
|
6
|
Opioid Prescriptions in Chronic Pain Rehabilitation. A Prospective Study on the Prevalence and Association between Individual Patient Characteristics and Opioids. J Clin Med 2021; 10:jcm10102130. [PMID: 34069098 PMCID: PMC8155870 DOI: 10.3390/jcm10102130] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 04/30/2021] [Accepted: 05/12/2021] [Indexed: 11/17/2022] Open
Abstract
While against recommendations, long-term opioid therapy (LTOT) for chronic pain is common. This study aimed to describe the prevalence of opioid prescriptions and to study the association of patient characteristics (demographics, pain characteristics, anxiety, depressive symptoms and pain coping) with future LTOT. The sample included N = 1334 chronic musculoskeletal pain patients, aged 18–65, who were assessed for Interdisciplinary Multimodal Pain Rehabilitation (IMMR) in Swedish specialist rehabilitation. Prescriptions were tracked across a two-year target period after assessment. In total, 9100 opioid prescriptions were prescribed to 55% of the sample (Mmedian = 6, IQR = 14). Prediction of LTOT was analyzed separately for those who did (24%) and did not (76%) receive IMMR. The odds of receiving opioids was similar for these subsamples, after controlling for differences in baseline characteristics. In both samples, there were significant associations between patient characteristics and future opioid prescriptions. Dysfunctional pain coping was a unique predictor of LTOT in those who received IMMR while pain intensity and depressive symptoms were unique predictors in those who did not receive IMMR. The results underscore that opioid treatment is common among patients in chronic pain rehabilitation and relates to pain and psychological factors. Understanding in detail why these factors relate to opioid prescription patterns is an important future study area as it is a prerequisite for better management and fundamental for preventing overuse.
Collapse
|
7
|
Role of neuraxial drug delivery in cancer pain therapy. FUTURE DRUG DISCOVERY 2020. [DOI: 10.4155/fdd-2019-0024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Opioids have long been the mainstay of cancer pain treatment and have been used without any consideration for their effect on cancer growth and long-term prognosis. There is now growing evidence that the continued use of opioids for this indication should be reviewed and even reconsidered. Although current evidence and literature covering this subject is mixed and does not yet allow for a clear determination to be made about safety, there is enough data to support the search for new treatment paradigms, beginning with anesthesia for oncologic surgery and management of cancer pain over the disease course.
Collapse
|
8
|
Eiselt É, Otis V, Belleville K, Yang G, Larocque A, Régina A, Demeule M, Sarret P, Gendron L. Use of a Noninvasive Brain-Penetrating Peptide-Drug Conjugate Strategy to Improve the Delivery of Opioid Pain Relief Medications to the Brain. J Pharmacol Exp Ther 2020; 374:52-61. [PMID: 32327529 DOI: 10.1124/jpet.119.263566] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Indexed: 03/08/2025] Open
Abstract
The analgesic potency of morphine-6-glucuronide (M6G) has been shown to be 50-fold higher than morphine after intracerebral injection. However, the brain penetration of M6G is significantly lower than morphine, thus limiting its usefulness in pain management. Here, we created new entities by the conjugation of the angiopep-2 peptide (An2) that crosses the blood-brain barrier (BBB) by low-density lipoprotein receptor-related protein 1 receptor-mediated transcytosis with either morphine or M6G. We demonstrated improvement of BBB permeability of these new entities compared with that of unconjugated M6G and morphine. Intravenous or subcutaneous administration of the An2-M6G conjugate exerted greater and more sustained analgesic activity than equivalent doses of either morphine or M6G. Likewise, subcutaneous An2-morphine induced a delayed but prolonged antinociceptive effect. The effects of these conjugates on the gastrointestinal tract motility were also evaluated. An2-morphine significantly reduced the intestinal transit time, whereas An2-M6G exhibited a reduced constipation profile, as compared with an equimolar dose of morphine. In summary, we have developed new brain-penetrant opioid conjugates exhibiting improved analgesia to side effect ratios. These results thus support the use of An2-carrier peptides as an innovative BBB-targeting technology to deliver effective drugs, such as M6G, for pain management. SIGNIFICANCE STATEMENT: The metabolite morphine-6-glucuronide (M6G) does not efficiently cross the blood-brain barrier. The low-density lipoprotein receptor-related protein 1 peptide ligand angiopep-2 may serve as an effective drug delivery system to the brain. Here, we demonstrated that the coupling of M6G to angiopep-2 peptide (An2) improves its brain penetration and significantly increases its analgesic potency. The An2-M6G conjugate has a favorable side effect profile that includes reduction of developing constipation. An2-M6G exhibits a unique pharmacodynamic profile with a better therapeutic window than morphine.
Collapse
Affiliation(s)
- Émilie Eiselt
- Département de pharmacologie-physiologie, Institut de pharmacologie de Sherbrooke, Centre de Recherche du Centre Hospitalier Universitaire de Sherbrooke, Faculté de médecine et des sciences de la santé, Université de Sherbrooke, Sherbrooke, Québec, Canada (É.E., V.O., K.B., P.S., L.G.); Angiochem Inc., Montréal, Québec, Canada (G.Y., A.L., A.R., M.D.); and Quebec Pain Research Network, Sherbrooke, Québec, Canada (P.S., L.G.)
| | - Valérie Otis
- Département de pharmacologie-physiologie, Institut de pharmacologie de Sherbrooke, Centre de Recherche du Centre Hospitalier Universitaire de Sherbrooke, Faculté de médecine et des sciences de la santé, Université de Sherbrooke, Sherbrooke, Québec, Canada (É.E., V.O., K.B., P.S., L.G.); Angiochem Inc., Montréal, Québec, Canada (G.Y., A.L., A.R., M.D.); and Quebec Pain Research Network, Sherbrooke, Québec, Canada (P.S., L.G.)
| | - Karine Belleville
- Département de pharmacologie-physiologie, Institut de pharmacologie de Sherbrooke, Centre de Recherche du Centre Hospitalier Universitaire de Sherbrooke, Faculté de médecine et des sciences de la santé, Université de Sherbrooke, Sherbrooke, Québec, Canada (É.E., V.O., K.B., P.S., L.G.); Angiochem Inc., Montréal, Québec, Canada (G.Y., A.L., A.R., M.D.); and Quebec Pain Research Network, Sherbrooke, Québec, Canada (P.S., L.G.)
| | - Gaoqiang Yang
- Département de pharmacologie-physiologie, Institut de pharmacologie de Sherbrooke, Centre de Recherche du Centre Hospitalier Universitaire de Sherbrooke, Faculté de médecine et des sciences de la santé, Université de Sherbrooke, Sherbrooke, Québec, Canada (É.E., V.O., K.B., P.S., L.G.); Angiochem Inc., Montréal, Québec, Canada (G.Y., A.L., A.R., M.D.); and Quebec Pain Research Network, Sherbrooke, Québec, Canada (P.S., L.G.)
| | - Alain Larocque
- Département de pharmacologie-physiologie, Institut de pharmacologie de Sherbrooke, Centre de Recherche du Centre Hospitalier Universitaire de Sherbrooke, Faculté de médecine et des sciences de la santé, Université de Sherbrooke, Sherbrooke, Québec, Canada (É.E., V.O., K.B., P.S., L.G.); Angiochem Inc., Montréal, Québec, Canada (G.Y., A.L., A.R., M.D.); and Quebec Pain Research Network, Sherbrooke, Québec, Canada (P.S., L.G.)
| | - Anthony Régina
- Département de pharmacologie-physiologie, Institut de pharmacologie de Sherbrooke, Centre de Recherche du Centre Hospitalier Universitaire de Sherbrooke, Faculté de médecine et des sciences de la santé, Université de Sherbrooke, Sherbrooke, Québec, Canada (É.E., V.O., K.B., P.S., L.G.); Angiochem Inc., Montréal, Québec, Canada (G.Y., A.L., A.R., M.D.); and Quebec Pain Research Network, Sherbrooke, Québec, Canada (P.S., L.G.)
| | - Michel Demeule
- Département de pharmacologie-physiologie, Institut de pharmacologie de Sherbrooke, Centre de Recherche du Centre Hospitalier Universitaire de Sherbrooke, Faculté de médecine et des sciences de la santé, Université de Sherbrooke, Sherbrooke, Québec, Canada (É.E., V.O., K.B., P.S., L.G.); Angiochem Inc., Montréal, Québec, Canada (G.Y., A.L., A.R., M.D.); and Quebec Pain Research Network, Sherbrooke, Québec, Canada (P.S., L.G.)
| | - Philippe Sarret
- Département de pharmacologie-physiologie, Institut de pharmacologie de Sherbrooke, Centre de Recherche du Centre Hospitalier Universitaire de Sherbrooke, Faculté de médecine et des sciences de la santé, Université de Sherbrooke, Sherbrooke, Québec, Canada (É.E., V.O., K.B., P.S., L.G.); Angiochem Inc., Montréal, Québec, Canada (G.Y., A.L., A.R., M.D.); and Quebec Pain Research Network, Sherbrooke, Québec, Canada (P.S., L.G.)
| | - Louis Gendron
- Département de pharmacologie-physiologie, Institut de pharmacologie de Sherbrooke, Centre de Recherche du Centre Hospitalier Universitaire de Sherbrooke, Faculté de médecine et des sciences de la santé, Université de Sherbrooke, Sherbrooke, Québec, Canada (É.E., V.O., K.B., P.S., L.G.); Angiochem Inc., Montréal, Québec, Canada (G.Y., A.L., A.R., M.D.); and Quebec Pain Research Network, Sherbrooke, Québec, Canada (P.S., L.G.)
| |
Collapse
|
9
|
Degu A, Kebede K. Drug-related problems and its associated factors among breast cancer patients at the University of Gondar Comprehensive Specialized Hospital, Ethiopia: A hospital-based retrospective cross-sectional study. J Oncol Pharm Pract 2020; 27:88-98. [PMID: 32252589 DOI: 10.1177/1078155220914710] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND Breast cancer is the most frequently diagnosed cancer and the leading cause of cancer deaths among women worldwide. If untreated and undetected at the early stage, it causes death by spreading to distant organs. Despite various studies suggesting the high prevalence of drug-related problems among cancer patients, there was a paucity of data regarding the problems among breast cancer patients in our setting. Hence, this study was aimed to assess the drug-related problems among patients with breast cancer at the Oncology Unit of the University of Gondar Comprehensive Specialized Hospital. METHODS A retrospective cross-sectional study was conducted at the Oncology Unit of the University of Gondar Comprehensive Specialized Hospital. The data were collected by retrospective reviewing medical records of 107 breast cancer patients. The data entry and analysis were done using SPSS version 20.0 statistical software. Descriptive statistics such as percent and frequency were used to summarize categorical variables of patients' characteristics. Univariable and multivariable binary logistic regression analyses were used to investigate the potential predictors of drug-related problems. A p-value of < 0.05 was considered statistically significant. RESULTS A total of 203 drug-related problems were identified from 76 breast cancer patients, translating to a prevalence of 71.03%. Among the drug-related problems identified, adverse drug reaction (48.6%), need for additional drug therapy (45.8%), and non-adherence (32.7%) were the most prevalent. In the multivariable analysis, breast cancer patients who had concurrent co-morbidities were almost three times (AOR = 2.97, p = 0.035) more likely to experience drug-related problems as compared to those patients without co-morbidity. Moreover, those patients who had been treated with neoadjuvant chemotherapeutic regimens were 0.34 times less likely (crude odd ratio = 0.34, p = 0.023) to have drug-related problems as compared to patients treated with adjuvant chemotherapy regimens. CONCLUSION The prevalence of drug-related problems was high in our setting. Adverse drug reactions, the need for additional drug therapy, and non-adherence were the most frequently occurring drug-related problems in the study setting. Neoadjuvant chemotherapy and the presence of co-morbidities were significant predictors of drug-related problems among breast cancer patients.
Collapse
Affiliation(s)
- Amsalu Degu
- School of Pharmacy and Health Sciences, United States International University-Africa, Nairobi, Kenya
| | - Kassu Kebede
- Department of Clinical Pharmacy, College of Medicine and Health Sciences, School of Pharmacy, University of Gondar, Gondar, Ethiopia
| |
Collapse
|
10
|
Winegarden JA, Carr DB, Bradshaw YS. Topical Ketamine with Other Adjuvants: Underutilized for Refractory Cancer Pain? A Case Series and Suggested Revision of the World Health Organization Stepladder for Cancer Pain. J Palliat Med 2020; 23:1167-1171. [PMID: 32167846 PMCID: PMC7469690 DOI: 10.1089/jpm.2019.0618] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Background: Uncontrolled cancer pain is a significant problem in palliative medicine. Opioids are often first-line treatment that increase risks of analgesic tolerance and hyperalgesia. Topical ketamine with other adjuvant pain medications is an often-overlooked treatment, yet may be most effective in difficult-to-treat cancer pain. Objective: We report a case series of hospice patients with uncontrolled cancer pain who were suboptimally treated with opioids and nerve blocks, whose symptoms responded to topical ketamine with other adjuvants. We review the pronociceptive properties of opioids and how topical multimodal treatment of cancer pain can be more effective than standard opioids, other topical adjuvant medications, and nerve blocks. We discuss the shortcomings of the World Health Organization (WHO) stepladder for the treatment of cancer pain and suggest an adjuvant treatment algorithm, directing physicians to appropriate adjuvant pain agents based on pain type and distinct receptor actions. Design: This is a retrospective case series of patients who responded to topical multimodal pain treatment with implementation of findings into an addendum to the WHO stepladder. Subjects: Subjects were from a case series of community-based hospice patients with previously uncontrolled cancer pain. Measurement: Measurement was made by self-report of pain levels using the 10-point numeric pain rating scale. Results: Patients' pain was controlled with topical adjuvant medications with return to previously lost function and prevention of otherwise escalating opioid dosing. Conclusions: These patient cases reveal how ketamine-based topical treatment for cancer pain can be more effective than standard opioids, other topical adjuvant medications, and nerve blocks with no noted side effects and observed reduction in opioid consumption.
Collapse
Affiliation(s)
| | - Daniel B Carr
- Department of Public Health and Community Medicine, Pain Research, Education and Policy Program, Tufts University School of Medicine, Boston, Massachusetts, USA
| | - Ylisabyth S Bradshaw
- Department of Public Health and Community Medicine, Pain Research, Education and Policy Program, Tufts University School of Medicine, Boston, Massachusetts, USA
| |
Collapse
|
11
|
Salins N, Thota RS, Bhatnagar S, Ramanjulu R, Ahmed A, Jain P, Chatterjee A, Bhattacharya D. Indian Society for Study of Pain, Cancer Pain Special Interest Group Guidelines on Palliative Care Aspects in Cancer Pain Management. Indian J Palliat Care 2020; 26:210-214. [PMID: 32874035 PMCID: PMC7444566 DOI: 10.4103/0973-1075.285687] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
The Indian Society for Study of Pain (ISSP), Cancer Pain Special Interest Group guidelines on palliative care aspects in cancer pain in adults provide a structured, stepwise approach which will help to improve the management of cancer pain and to provide the patients with a minimally acceptable quality of life. The guidelines have been developed based on the available literature and evidence, to suit the needs, patient population, and situations in India. A questionnaire based on the key elements of each sub draft addressing certain inconclusive areas where evidence was lacking was made available on the ISSP website and circulated by E-mail to all the ISSP and Indian Association of Palliative Care (IAPC) members. In a cancer care setting, approaches toward managing pain vary between ambulatory setting, home care setting, acute inpatient setting, and end-of-life care in hospice setting. We aim to expound the cancer pain management approaches in these settings. In an ambulatory palliative care setting, the WHO analgesic step ladder is used for cancer pain management. The patients with cancer pain require admission for acute inpatient palliative care unit for poorly controlled pain in ambulatory and home care settings, rapid opioid titration, titration of difficult drugs such as methadone, acute pain crisis, pain neuromodulation, and pain interventions. In a palliative home care setting, the cancer pain is usually assessed and managed by nurses and primary physicians with a limited input from the specialist physicians. In patients with cancer at the end of life, the pain should be assessed at least once a day. Moreover, physicians should be trained in assessing patients with pain who are unable to verbalize or have cognitive impairment.
Collapse
Affiliation(s)
- Naveen Salins
- Department of Palliative Medicine and Supportive Care, Manipal Comprehensive Cancer Care Centre, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Raghu S Thota
- Department of Anaesthesiology, Critical Care and Pain, Tata Memorial Centre, Homi Bhabha National Institute, Mumbai, Maharashtra, India
| | - Sushma Bhatnagar
- Department of Onco-anaesthesia and Palliative Medicine, Dr. B.R.A. Institute Rotary Cancer Hospital, All India Institute of Medical Sciences, New Delhi, India
| | - Raghavendra Ramanjulu
- Department of Pain and Palliative Care, Cytecare Hospital, Bengaluru, Karnataka, India
| | - Arif Ahmed
- Department of Anaesthesia, Critical Care and Pain Management, CK Birla Hospital for Women, Gurugram, Haryana, India
| | - Parmanand Jain
- Department of Anaesthesiology, Critical Care and Pain, Tata Memorial Centre, Homi Bhabha National Institute, Mumbai, Maharashtra, India
| | - Aparna Chatterjee
- Department of Anaesthesiology, Critical Care and Pain, Tata Memorial Centre, Homi Bhabha National Institute, Mumbai, Maharashtra, India
| | - Dipasri Bhattacharya
- Department of Anaesthesiology, Critical Care and Pain, R.G. Kar Medical College, Kolkata, West Bengal, India
| |
Collapse
|
12
|
Saletta GA, Sprott H. Bedside Neurolysis for Palliative Care of Critically Ill Patients With Pancreatic Cancer. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2019; 38:1907-1911. [PMID: 30480337 DOI: 10.1002/jum.14881] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2018] [Accepted: 10/22/2018] [Indexed: 06/09/2023]
Affiliation(s)
| | - Haiko Sprott
- University of Zurich, Zurich, Switzerland
- Arztpraxis Zurich-Hottingen, Zurich, Switzerland
| |
Collapse
|
13
|
Kopruszinski CM, dos Reis RC, Rae GA, Chichorro JG. Blockade of peripheral endothelin receptors abolishes heat hyperalgesia and spontaneous nociceptive behavior in a rat model of facial cancer. Arch Oral Biol 2019; 97:231-237. [DOI: 10.1016/j.archoralbio.2018.10.038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2018] [Revised: 10/30/2018] [Accepted: 10/31/2018] [Indexed: 12/27/2022]
|
14
|
Zheng RJ, Fu Y, Zhu J, Xu JP, Xiang QF, Chen L, Zhong H, Li JY, Yu CH. Long-term low-dose morphine for patients with moderate cancer pain is predominant factor effecting clinically meaningful pain reduction. Support Care Cancer 2018; 26:4115-4120. [PMID: 29855773 DOI: 10.1007/s00520-018-4282-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2017] [Accepted: 05/17/2018] [Indexed: 02/05/2023]
Abstract
PURPOSE Patients with cancer often experience pain that affects their daily activities and quality of life. The analgesic ladder recommended by the World Health Organization has proved insufficient for many, and its scientific basis has been questioned. This retrospective study investigated factors related to adherence to long-term opioid therapy for patients with moderate cancer pain, including an evaluation of low-dose morphine relative to tramadol. METHODS Clinical data were collected of patients with moderate cancer pain (n = 353) who received either low-dose morphine or tramadol and were followed for ≥ 27 weeks. Factors related to regime adherence were investigated, including the analgesia type, cancer therapy (antitumor therapy or palliative care), pain type (nociceptive, neuropathic, or mixed), and living distance to the hospital. Factors related to clinically meaningful pain reduction (≥ 30% reduction in pain from baseline) were also investigated. RESULTS Patients taking tramadol, receiving antitumor therapy, experiencing neuropathic pain, and living far from the hospital were more likely to change analgesic strategy compared with, respectively, patients receiving low-dose morphine, palliative care, experiencing nociceptive pain, and living nearby. Factors that increased the likelihood of adherence to the analgesic regime were also associated with the likelihood of clinically meaningful pain reduction. Among adverse effects, a significantly higher percentage of patients experienced constipation in the tramadol group compared with those given morphine. CONCLUSIONS Among patients with moderate cancer pain, long-term low-dose morphine was safe and more effective than tramadol for clinically meaningful pain reduction, and patients were less likely to change the analgesic strategy.
Collapse
Affiliation(s)
- Ru-Jun Zheng
- Thoracic Oncology Department of West China Hospital and Uncertainty Decision-Making Laboratory, Sichuan University, Chengdu, 610041, People's Republic of China
| | - Yan Fu
- Thoracic Oncology Department and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, People's Republic of China
| | - Jiang Zhu
- Thoracic Oncology Department and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, People's Republic of China
| | - Jiu-Ping Xu
- Uncertainty Decision-Making Laboratory, Sichuan University, Chengdu, 610041, People's Republic of China
| | - Qiu-Fen Xiang
- Thoracic Oncology Department and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, People's Republic of China
| | - Lin Chen
- Lung Cancer Center, West China Hospital, Sichuan University, Chengdu, 610041, People's Republic of China
| | - Hua Zhong
- Thoracic Oncology Department and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, People's Republic of China
| | - Jun-Ying Li
- Thoracic Oncology Department and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, People's Republic of China.
| | - Chun-Hua Yu
- Thoracic Oncology Department and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, People's Republic of China.
| |
Collapse
|
15
|
De Bari B, Chiesa S, Filippi AR, Gambacorta MA, D'Emilio V, Murino P, Livi L. The INTER-ROMA Project - a Survey among Italian Radiation Oncologists on Their Approach to the Treatment of Bone Metastases. TUMORI JOURNAL 2018; 97:177-84. [DOI: 10.1177/030089161109700208] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Aims and background Radiotherapy has an established palliative role for bone metastases but despite the large number of patients treated there is still controversy surrounding the optimal radiotherapy schedule to prescribe. The aim of this survey was to determine the decision patterns of Italian radiation oncologists in four different clinical cases of patients with bone metastases. Methods and study design During the latest national meeting of the Italian Association of Radiation Oncology (AIRO), four clinical cases were presented to attending radiation oncologists. The cases were different with respect to the histology of the primary tumor, performance status, pain before and after analgesics, tumor site, and radiological characteristics of the metastatic lesions. For each clinical case the respondents were asked to give an indication for treatment; prescribe doses, volumes and treatment field arrangements; decide whether to prescribe prophylactic supportive therapy or not; and provide information about factors that particularly influenced prescription. Finally, a descriptive statistical analysis was performed. Results Three hundred questionnaires were distributed to radiation oncologists attending the congress. One hundred twenty-five questionnaires were returned but only 122 (40.6%) were adequately completed and considered for the analysis. Considerable differences were observed among radiation oncologists in prescribing and delivering radiotherapy for bone metastases. There was also a notable divergence from international guidelines, which will be discussed in this report. Conclusions Despite the results of clinical trials, Italian radiation oncologists differ considerably in their decisions on treatment doses and volumes. National guidelines are needed in order that patients can be treated uniformly and better data will become available for evidence-based palliative radiotherapy.
Collapse
Affiliation(s)
| | - Berardino De Bari
- Service de Radiothérapie Oncologie, Centre Hospitalier Lyon-Sud, Université Claude Bernard, Pierre Benite cedex, France, and EA 3738
| | - Silvia Chiesa
- Bio-Images and Radiological Sciences Department, Radiotherapy Institute, Catholic University, Rome
| | - Andrea Riccardo Filippi
- Department of Medical and Surgical Sciences, Radiation Oncology Unit, University of Turin, Ospedale S. Giovanni Battista, Turin
| | | | - Valentina D'Emilio
- Radiation Oncology Department, Azienda Ospedaliera “Civile-MP Arezzo”, Ragusa
| | - Paola Murino
- Radiation Oncology Department, Ospedale Cardinale Ascalesi, Naples
| | - Lorenzo Livi
- Radiotherapy Unit, University of Florence, Florence, Italy
| |
Collapse
|
16
|
Blockade of endothelin receptors reduces tumor-induced ongoing pain and evoked hypersensitivity in a rat model of facial carcinoma induced pain. Eur J Pharmacol 2018; 818:132-140. [DOI: 10.1016/j.ejphar.2017.10.045] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Revised: 10/18/2017] [Accepted: 10/20/2017] [Indexed: 12/11/2022]
|
17
|
Robinson D, Orlowski RZ, Stokes M, He J, Huse S, Chitnis A, Kranenburg B, Lam A. Economic burden of relapsed or refractory multiple myeloma: Results from an international trial. Eur J Haematol 2017; 99:119-132. [PMID: 28306169 DOI: 10.1111/ejh.12876] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/28/2017] [Indexed: 12/22/2022]
Abstract
OBJECTIVE The direct cost of relapsed or refractory multiple myeloma (RRMM) is documented; indirect costs are being explored. Healthcare payers seek cost-offsets from therapies that improve clinical outcomes but challenge budgets; employers seek lower absenteeism and better productivity. Study goals were to: (i) identify direct and indirect economic factors of RRMM, and (ii) explore longitudinal relationships between clinical, economic, and health-related quality of life (HRQoL) assessments. METHODS Economic questionnaire, clinical, and HRQoL data from a multisite, international, randomized, controlled study in RRMM were analyzed. RESULTS Patients (n=263) were 53.6% male, 91.6% Caucasian; mean age of 62.9 years, median Eastern Cooperative Oncology Group status of 1 (56.3%). Moderate to severe pain or fatigue was reported by 30.4% and 70.6%, respectively. At baseline, ≥1 hospitalization was reported by 107 (41.8%); 182 (71.1%) and 86 (33.6%) reported specialist and family physician visits, respectively. A total of 28 (10.8%) were working: 10 (37.0%) of which reported RRMM-driven absenteeism ≥1 day. Of those who were not working, 110 (48.2%) indicated that it was due to RRMM. Multivariate modeling showed lower hospitalization with a major tumor response (β=-1.44, CI: -2.89 to 0.01, P=.05). CONCLUSIONS Substantial RRMM indirect, social costs were observed. Better major tumor response may reduce hospital visits.
Collapse
|
18
|
Combined application of diclofenac and celecoxib with an opioid yields superior efficacy in metastatic bone cancer pain: a randomized controlled trial. Int J Clin Oncol 2017; 22:980-985. [DOI: 10.1007/s10147-017-1133-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2017] [Accepted: 04/30/2017] [Indexed: 11/26/2022]
|
19
|
Carr AC, McCall C. The role of vitamin C in the treatment of pain: new insights. J Transl Med 2017; 15:77. [PMID: 28410599 PMCID: PMC5391567 DOI: 10.1186/s12967-017-1179-7] [Citation(s) in RCA: 91] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Accepted: 04/05/2017] [Indexed: 02/07/2023] Open
Abstract
The vitamin C deficiency disease scurvy is characterised by musculoskeletal pain and recent epidemiological evidence has indicated an association between suboptimal vitamin C status and spinal pain. Furthermore, accumulating evidence indicates that vitamin C administration can exhibit analgesic properties in some clinical conditions. The prevalence of hypovitaminosis C and vitamin C deficiency is high in various patient groups, such as surgical/trauma, infectious diseases and cancer patients. A number of recent clinical studies have shown that vitamin C administration to patients with chronic regional pain syndrome decreases their symptoms. Acute herpetic and post-herpetic neuralgia is also diminished with high dose vitamin C administration. Furthermore, cancer-related pain is decreased with high dose vitamin C, contributing to enhanced patient quality of life. A number of mechanisms have been proposed for vitamin C’s analgesic properties. Herein we propose a novel analgesic mechanism for vitamin C; as a cofactor for the biosynthesis of amidated opioid peptides. It is well established that vitamin C participates in the amidation of peptides, through acting as a cofactor for peptidyl-glycine α-amidating monooxygenase, the only enzyme known to amidate the carboxy terminal residue of neuropeptides and peptide hormones. Support for our proposed mechanism comes from studies which show a decreased requirement for opioid analgesics in surgical and cancer patients administered high dose vitamin C. Overall, vitamin C appears to be a safe and effective adjunctive therapy for acute and chronic pain relief in specific patient groups.
Collapse
Affiliation(s)
- Anitra C Carr
- Department of Pathology, University of Otago, Christchurch, PO Box 4345, Christchurch, 8140, New Zealand.
| | - Cate McCall
- Centre for Postgraduate Nursing Studies, University of Otago, Christchurch, PO Box 4345, Christchurch, 8140, New Zealand
| |
Collapse
|
20
|
Carmona-Bayonas A, Jiménez Fonseca P, Virizuela Echaburu J. Tapentadol for Cancer Pain Management: A Narrative Review. Pain Pract 2017; 17:1075-1088. [PMID: 28084045 DOI: 10.1111/papr.12556] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Revised: 11/01/2016] [Accepted: 11/27/2016] [Indexed: 11/29/2022]
Abstract
BACKGROUND AND OBJECTIVE Pain is one of the most common symptoms in patients with cancer. The aim of this review is to summarize the most recent literature regarding tapentadol use in oncology patients and moderate or severe pain. DATABASES AND DATA TREATMENT We have conducted a review of the literature using PubMed, The Cochrane Library, EMBASE, and Google Scholar for all manuscripts published between 2008 and 2016, using the key words "tapentadol," "cancer," "pain," "tumor," and "malignant." RESULTS Nine studies met the inclusion criteria (four randomized clinical trials and five prospective cohort studies). The scope of the literature was diverse, with 15 instruments used to measure different aspects of pain (intensity, health status, quality of life, psychometric and well-being, perception of change, and neuropathic pain). All these studies concluded that tapentadol is seemingly a well-tolerated and efficacious agent for moderate-severe cancer pain, with few typically mild adverse reactions. However, the most significant detected weaknesses of research were that (1) existing studies do not clearly show a superiority of tapentadol with respect to previous generation opioids, (2) low-to-moderate sample sizes prevent obtaining robust conclusions about effectiveness, (3) there was an absence of noninferiority trials comparing tapentadol vs. fentanyl or oxycodone-naloxone, and (4) there was scarce generalizability of prospective observational studies. CONCLUSION Tapentadol is seemingly an effective, well-tolerated alternative for moderate or severe cancer pain. Most prospective cohort studies have relatively small samples, are restricted to few research centers, and lack detailed subgroup information. More experience is required to draw valid generalizable conclusions.
Collapse
Affiliation(s)
- Alberto Carmona-Bayonas
- Hematology and Medical Oncology Department, Morales Meseguer University Hospital, Regional Center of Hemodonation of Murcia, IMIB-Arrixaca, University of Murcia, Murcia, Spain
| | | | | |
Collapse
|
21
|
Olbrich K, Costard L, Möser CV, Syhr KMJ, King-Himmelreich TS, Wolters MC, Schmidtko A, Geisslinger G, Niederberger E. Cleavage of SNAP-25 ameliorates cancer pain in a mouse model of melanoma. Eur J Pain 2016; 21:101-111. [PMID: 27301493 DOI: 10.1002/ejp.904] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/02/2016] [Indexed: 01/09/2023]
Abstract
BACKGROUND Cancer pain is associated with increased pain sensitivity to noxious (hyperalgesia) and normally innocuous (allodynia) stimuli due to activation of nociceptors by tumour-derived mediators or tumour infiltration of nerves. The pain sensitization is accompanied by modifications in gene expression, but specifically regulated genes are largely unknown. The 25 kDa synaptosomal-associated protein (SNAP-25) is involved in chemical neurotransmission at the synaptic cleft. Its inhibition by Botulinum neurotoxin A (BoNT/A) has been associated with antinociceptive effects in migraine, inflammatory and neuropathic pain. However, its potential to reduce tumour-associated pain remains to be clarified. METHODS We applied a melanoma model of tumour pain in C57BL/6 mice and investigated SNAP-25 expression and regulation by qRT-PCR, Western Blot and immunofluorescence as well as tumour-associated mechanical allodynia with and without BoNT/A treatment. RESULTS We found increased SNAP-25 expression in the dorsal root ganglia and the sciatic nerve. Intraplantar injection of BoNT/A induced the cleavage of SNAP-25 in these tissues and was associated with decreased mechanical allodynia after therapeutic treatment at early and late stages of tumour pain while the tumour size was not affected. CONCLUSIONS Our data indicate that SNAP-25 plays a role in tumour pain but has no influence on the initiation and progression of skin cancer. Its cleavage inhibits the development of allodynia in the mouse melanoma model and might be useful as new therapeutic approach for the treatment of cancer pain. WHAT DOES THIS STUDY ADD?: SNAP-25 is differentially regulated during melanoma-induced tumour pain. Its cleavage by BoNT/A might be a suitable therapeutic option for tumour pain patients since tumour-associated pain can be strongly and significantly reduced after preventive and therapeutic BoNT/A treatment, respectively.
Collapse
Affiliation(s)
- K Olbrich
- Pharmazentrum Frankfurt/ZAFES, Institut für Klinische Pharmakologie, Klinikum der Goethe-Universität Frankfurt, Frankfurt am Main, Germany
| | - L Costard
- Pharmazentrum Frankfurt/ZAFES, Institut für Klinische Pharmakologie, Klinikum der Goethe-Universität Frankfurt, Frankfurt am Main, Germany
| | - C V Möser
- Pharmazentrum Frankfurt/ZAFES, Institut für Klinische Pharmakologie, Klinikum der Goethe-Universität Frankfurt, Frankfurt am Main, Germany
| | - K M J Syhr
- Pharmazentrum Frankfurt/ZAFES, Institut für Klinische Pharmakologie, Klinikum der Goethe-Universität Frankfurt, Frankfurt am Main, Germany
| | - T S King-Himmelreich
- Pharmazentrum Frankfurt/ZAFES, Institut für Klinische Pharmakologie, Klinikum der Goethe-Universität Frankfurt, Frankfurt am Main, Germany
| | - M C Wolters
- Pharmazentrum Frankfurt/ZAFES, Institut für Klinische Pharmakologie, Klinikum der Goethe-Universität Frankfurt, Frankfurt am Main, Germany
| | - A Schmidtko
- Institut für Pharmakologie und Toxikologie, Universität Witten/Herdecke, Zentrum für Biomedizinische Ausbildung und Forschung, Witten, Germany
| | - G Geisslinger
- Pharmazentrum Frankfurt/ZAFES, Institut für Klinische Pharmakologie, Klinikum der Goethe-Universität Frankfurt, Frankfurt am Main, Germany
| | - E Niederberger
- Pharmazentrum Frankfurt/ZAFES, Institut für Klinische Pharmakologie, Klinikum der Goethe-Universität Frankfurt, Frankfurt am Main, Germany
| |
Collapse
|
22
|
Falk S, Ipsen DH, Appel CK, Ugarak A, Durup D, Dickenson AH, Heegaard AM. Randall Selitto pressure algometry for assessment of bone-related pain in rats. Eur J Pain 2015; 19:305-12. [PMID: 25057115 DOI: 10.1002/ejp.547] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/04/2014] [Indexed: 12/27/2022]
Abstract
BACKGROUND Deep pain is neglected compared with cutaneous sources. Pressure algometry has been validated in the clinic for assessment of bone-related pain in humans. In animal models of bone-related pain, we have validated the Randall Selitto behavioural test for assessment of acute and pathological bone pain and compared the outcome with more traditional pain-related behaviour measures. METHODS Randall Selitto pressure algometry was performed over the anteromedial part of the tibia in naïve rats, sham-operated rats, and rats inoculated with MRMT-1 carcinoma cells in the left tibia, and the effect of morphine was investigated. Randall Selitto measures of cancer-induced bone pain were supplemented by von Frey testing, weight-bearing and limb use test. Contribution of cutaneous nociception to Randall Selitto measures were examined by local anaesthesia. RESULTS Randall Selitto pressure algometry over the tibia resulted in reproducible withdrawal thresholds, which were dose-dependently increased by morphine. Cutaneous nociception did not contribute to Randall Selitto measures. In cancer-bearing animals, compared with sham, significant differences in pain-related behaviours were demonstrated by the Randall Selitto test on day 17 and 21 post-surgery. A difference was also demonstrated by von Frey testing, weight-bearing and limb use tests. CONCLUSION Our results indicate that pressure applied by the Randall Selitto algometer on a region, where the bone is close to the skin, may offer a way to measure bone-related pain in animal models and could provide a supplement to the traditional behavioural tests and a means to study deep pain.
Collapse
Affiliation(s)
- S Falk
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | | | | | | | | | | | | |
Collapse
|
23
|
Mercadante S. Opioid metabolism and clinical aspects. Eur J Pharmacol 2015; 769:71-8. [DOI: 10.1016/j.ejphar.2015.10.049] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Revised: 10/14/2015] [Accepted: 10/27/2015] [Indexed: 12/16/2022]
|
24
|
A Traditional Chinese Medicine Xiao-Ai-Tong Suppresses Pain through Modulation of Cytokines and Prevents Adverse Reactions of Morphine Treatment in Bone Cancer Pain Patients. Mediators Inflamm 2015; 2015:961635. [PMID: 26617438 PMCID: PMC4649101 DOI: 10.1155/2015/961635] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Revised: 07/31/2015] [Accepted: 09/22/2015] [Indexed: 01/05/2023] Open
Abstract
Treating cancer pain continues to possess a major challenge. Here, we report that a traditional Chinese medicine Xiao-Ai-Tong (XAT) can effectively suppress pain and adverse reactions following morphine treatment in patients with bone cancer pain. Visual Analogue Scale (VAS) and Quality of Life Questionnaire (EORTC QLQ-C30) were used for patient's self-evaluation of pain intensity and evaluating changes of adverse reactions including constipation, nausea, fatigue, and anorexia, respectively, before and after treatment prescriptions. The clinical trials showed that repetitive oral administration of XAT (200 mL, bid, for 7 consecutive days) alone greatly reduced cancer pain. Repetitive treatment with a combination of XAT and morphine (20 mg and 30 mg, resp.) produced significant synergistic analgesic effects. Meanwhile, XAT greatly reduced the adverse reactions associated with cancer and/or morphine treatment. In addition, XAT treatment significantly reduced the proinflammatory cytokines interleukin-1β and tumor necrosis factor-α and increased the endogenous anti-inflammatory cytokine interleukin-10 in blood. These findings demonstrate that XAT can effectively reduce bone cancer pain probably mediated by the cytokine mechanisms, facilitate analgesic effect of morphine, and prevent or reduce the associated adverse reactions, supporting a use of XAT, alone or with morphine, in treating bone cancer pain in clinic.
Collapse
|
25
|
Abstract
Safe, effective, and evidence-based management of cancer-related pain is a cornerstone of comprehensive cancer care. Despite increasing interest in and efforts to improve its management, pain remains poorly controlled in nearly half of all patients with cancer, with little change in the past 20 years. Limited training in pain assessment and management, overestimation of providers' own skills to treat pain, and failure to refer patients to pain specialists can result in suboptimal pain management with devastating effects on quality of life, physical functioning, and increased psychological distress. From a thorough assessment of cancer-related pain to appropriate treatments that may include opiates, adjuvant medications, nerve blocks, and nondrug interventions, this article is intended as a brief overview of the mechanisms and types of pain as well as a review of current, new, and promising approaches to its management.
Collapse
Affiliation(s)
- Thomas J Smith
- Harry J. Duffey Family Palliative Care Program of the Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins Medical Institutions, Baltimore, MD.
| | - Catherine B Saiki
- Harry J. Duffey Family Palliative Care Program of the Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins Medical Institutions, Baltimore, MD
| |
Collapse
|
26
|
Remeniuk B, Sukhtankar D, Okun A, Navratilova E, Xie JY, King T, Porreca F. Behavioral and neurochemical analysis of ongoing bone cancer pain in rats. Pain 2015; 156:1864-1873. [PMID: 25955964 PMCID: PMC4578982 DOI: 10.1097/j.pain.0000000000000218] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2015] [Revised: 03/23/2015] [Accepted: 03/24/2015] [Indexed: 01/05/2023]
Abstract
Cancer-induced bone pain is described as dull, aching ongoing pain. Ongoing bone cancer pain was characterized after intratibial injection of breast cancer cells in rats. Cancer produced time-dependent bone remodeling and tactile hypersensitivity but no spontaneous flinching. Conditioned place preference (CPP) and enhanced dopamine (DA) release in the nucleus accumbens (NAc) shell was observed after peripheral nerve block (PNB) selectively in tumor-bearing rats revealing nociceptive-driven ongoing pain. Oral diclofenac reversed tumor-induced tactile hypersensitivity but did not block PNB-induced CPP or NAc DA release. Tumor-induced tactile hypersensitivity, and PNB-induced CPP and NAc DA release, was blocked by prior subcutaneous implantation of a morphine pellet. In sham rats, morphine produced a modest but sustained increase in NAc DA release. In contrast, morphine produced a transient 5-fold higher NAc DA release in tumor bearing rats compared with sham morphine rats. The possibility that this increased NAc DA release reflected the reward of pain relief was tested by irreversible blockade of rostral anterior cingulate cortex (rACC) μ-opioid receptors (MORs). The rACC MOR blockade prevented the morphine-induced transient increased NAc DA release in tumor bearing rats but did not affect morphine-induced effects in sham-operated animals. Consistent with clinical experience, ongoing cancer pain was controlled by morphine but not by a dose of diclofenac that reversed evoked hypersensitivity. Additionally, the intrinsic reward of morphine can be dissociated from the reward of relief of cancer pain by blockade of rACC MOR. This approach allows mechanistic and therapeutic assessment of ongoing cancer pain with likely translation relevance.
Collapse
Affiliation(s)
- Bethany Remeniuk
- Department of Cancer Biology, Arizona Cancer Center, University of Arizona, Tucson, AZ, USA
| | - Devki Sukhtankar
- Department of Cancer Biology, Arizona Cancer Center, University of Arizona, Tucson, AZ, USA
| | - Alec Okun
- Department of Pharmacology, College of Medicine, University of Arizona, Tucson, AZ, USA
| | - Edita Navratilova
- Department of Pharmacology, College of Medicine, University of Arizona, Tucson, AZ, USA
| | - Jennifer Y. Xie
- Department of Pharmacology, College of Medicine, University of Arizona, Tucson, AZ, USA
| | - Tamara King
- Department of Biomedical Sciences, College of Osteopathic Medicine, Center for Excellence in the Neurosciences, University of New England, Biddeford, ME, USA
| | - Frank Porreca
- Department of Cancer Biology, Arizona Cancer Center, University of Arizona, Tucson, AZ, USA
- Department of Pharmacology, College of Medicine, University of Arizona, Tucson, AZ, USA
| |
Collapse
|
27
|
Factors Associated with Attitude and Knowledge Toward Hospice Palliative Care Among Medical Caregivers. INT J GERONTOL 2015. [DOI: 10.1016/j.ijge.2015.05.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
|
28
|
Jain PN, Pai K, Chatterjee AS. The prevalence of severe pain, its etiopathological characteristics and treatment profile of patients referred to a tertiary cancer care pain clinic. Indian J Palliat Care 2015; 21:148-51. [PMID: 26009666 PMCID: PMC4441174 DOI: 10.4103/0973-1075.156467] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Pain is the most feared symptom in cancer. About 52-77% patients suffer pain despite World Health Organization (WHO) recommendations. Out of total, one-third patients suffer moderate to severe pain. This study was undertaken to determine the prevalence, etiopathogenesis and characteristics of severe pain and treatment response among pain clinic referrals in a busy tertiary care cancer center. This study found a high prevalence (31.5%) of severe pain. A total of 251 patients who had complete pain data were analyzed for etiopathological characteristics and treatment response. Head and neck cancer contributed the highest prevalence among all regions. Oncologists prescribed non-steroidal anti-inflammatory drugs (NSAIDs) or paracetamol with or without mild opioids to 14% patients and pain clinic physicians prescribed opioids and overall 63.7% patients had a better response after pain clinic referral, even then, morphine was not prescribed to many deserving patients. Doctors need pain education about opioids to remove any fear of prescribing opioids in presence of severe pain.
Collapse
Affiliation(s)
- P N Jain
- Department of Anesthesia, Critical Care and Pain, Tata Memorial Hospital, Mumbai, Maharashtra, India
| | - Kaveri Pai
- Department of Anesthesia, Critical Care and Pain, Tata Memorial Hospital, Mumbai, Maharashtra, India
| | - Aparna S Chatterjee
- Department of Anesthesia, Critical Care and Pain, Tata Memorial Hospital, Mumbai, Maharashtra, India
| |
Collapse
|
29
|
Husic S, Izic S, Matic S, Sukalo A. Efficacy and safety of a fixed combination of tramadol and paracetamol (acetaminophen) as pain therapy within palliative medicine. Mater Sociomed 2015; 27:42-7. [PMID: 25870531 PMCID: PMC4384875 DOI: 10.5455/msm.2014.27.42-47] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2014] [Accepted: 02/08/2015] [Indexed: 11/25/2022] Open
Abstract
Goal: The goal of the research was to determine the efficacy of a fixed combination of tramadol and paracetamol (acetaminophen) in the treatment of pain of patients with the advanced stage of cancer. Material and methods: A prospective study was conducted at the Center for Palliative Care, University Clinical Center Tuzla, Bosnia and Herzegovina, from January 1st to December 31st 2013. A total of 353 patients who were treated with a fixed combination of tramadol and acetaminophen (37.5 mg and 325 mg) at the initial dosage 3x1 tablet (112.5 mg tramadol and 975 mg acetaminophen) for pain intensity 4, up to 4x2 tablets (300 mg of tramadol and 2600 mg paracetamol) for pain intensity 7 and 8. If the patient during previous day has two or more pain episodes that required a “rescue dose” of tramadol, increased was the dose of fixed combination tramadol and acetaminophen to a maximum of 8 tablets daily (300 mg of tramadol and 2600 mg paracetamol). Statistical analysis was performed by biomedical software MedCalc for Windows version 9.4.2.0. The difference was considered significant for P<0.05. Results: The average duration of treatment with a fixed combination tramadol and acetaminophen was 57 days (13-330 days). Already after 24 hours of treatment the average pain score was significantly lower (p<0.0001) compared to the admission day [5.00 (4:00 to 8:00) during the first days versus 2.00 (1:00 to 7:00) during the second day of treatment]. The average dose of the fixed combination tramadol and acetaminophen tablets was 4.8 ± 1.8 (180 mg of tramadol and 1560 mg paracetamol). Side effects, in the treatment of pain with a fixed combination tramadol and acetaminophen, were found in 29.18% of patients, with a predominance of nausea and vomiting. Conclusion: Fixed combination of tramadol and acetaminophen can be used as an effective combination in the treatment of chronic cancer pain, with frequent dose evaluation and mild side effects.
Collapse
Affiliation(s)
- Samir Husic
- Center for Palliative Care, Public Health Institution, University Clinical Center Tuzla, Bosnia and Herzegovina
| | - Senad Izic
- Center for Palliative Care, Public Health Institution, University Clinical Center Tuzla, Bosnia and Herzegovina
| | - Srecko Matic
- Public Health Institution, Primary Health Care Center Ljubuski, Bosnia and Herzegovina
| | - Aziz Sukalo
- Drug wholesalers Company, Farmavita Sarajevo, Bosnia and Herzegovina
| |
Collapse
|
30
|
Pergolizzi JV, Gharibo C, Ho KY. Treatment Considerations for Cancer Pain: A Global Perspective. Pain Pract 2014; 15:778-92. [DOI: 10.1111/papr.12253] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2014] [Revised: 07/11/2014] [Accepted: 08/26/2014] [Indexed: 12/13/2022]
Affiliation(s)
- Joseph V. Pergolizzi
- Department of Medicine; Johns Hopkins School of Medicine; Baltimore Maryland U.S.A
- Association of Chronic Pain Patients; Houston Texas U.S.A
- Department of Pharmacology; Temple University School of Medicine; Philadelphia Pennsylvania U.S.A
| | - Christopher Gharibo
- Department of Anesthesiology and Pain Medicine; New York University School of Medicine; New York City New York U.S.A
| | - Kok-Yuen Ho
- Raffles Pain Management Centre; Raffles Hospital; Singapore City Singapore
| |
Collapse
|
31
|
Abstract
BACKGROUND The history of discovery of analgesic drugs has followed a trajectory from original serendipitous discovery of plant-derived substances to laboratory creation of customized molecules that are intentionally designed to interact with specific receptors of neurotransmitters involved in either the transmission of the pain signal or the attenuation of such a signal. The drugs most recently developed have been designed to provide incremental greater separation between pain relief and adverse effects. The result has been drugs that have individualized pharmacodynamic and pharmacokinetic characteristics that represent specific advances in basic science and translate into unique clinical profiles. Several of the drugs include non-opioid components. They retain some of the features of opioids, but have distinct clinical characteristics that differentiate them from traditional opioids. Thus they defy simple classification as opioids. SCOPE A summary is provided of the development of the modern view of multi-mechanistic pain and its treatment using analgesics that have multi-mechanisms of action (consisting of both opioid and non-opioid components). Descriptions of examples of such current analgesics and of those that have pharmacokinetic characteristics that result in atypical opioid clinical profiles are given. FINDINGS By serendipity or design, several current strong analgesics have opioid components of action, but have an additional non-opioid mechanism of action or some pharmacokinetic feature that gives them an atypical opioid clinical profile and renders them not easily classified as classical opioids. CONCLUSION An appreciation that there are now opioid analgesics that differentiate from classical opioids in ways that defy their simplistic classification as opioids suggests that recognition of subclasses of opioid analgesics would be more accurate scientifically and would be more informative for healthcare providers and regulators. This would likely lead to positive outcomes for the clinical use and regulatory control of the current drugs, and provide direction/strategy for the discovery of new drugs.
Collapse
Affiliation(s)
- Robert B Raffa
- Temple University School of Pharmacy , Philadelphia, PA , USA
| |
Collapse
|
32
|
Abstract
Patients requiring chronic opioid therapy may not respond to or tolerate the first opioid prescribed to them, necessitating rotation to another opioid. They may also require dose increases for a number of reasons, including worsening disease and increased pain. Dose escalation to restore analgesia using the primary opioid may lead to increased adverse events. In these patients, rotation to a different opioid at a lower-than-equivalent dose may be sufficient to maintain adequate tolerability and analgesia. In published trials and case series, opioid rotation is performed either using a predetermined substitute opioid with fixed conversion methods, or in a manner that appears to be no more systematic than trial and error. In clinical practice, opioid rotation must be performed with consideration of individual patient characteristics, comorbidities (eg, concurrent psychiatric, pulmonary, renal, or hepatic illness), and concurrent medications, using flexible dosing protocols that take into account incomplete opioid cross-tolerance. References cited in this review were identified via a search of PubMed covering all English language publications up to May 21, 2013 pertaining to opioid rotation, excluding narrative reviews, letters, and expert opinion. The search yielded a total of 129 articles, 92 of which were judged to provide relevant information and subsequently included in this review. Through a review of this literature and from the authors’ empiric experience, this review provides practical information on performing opioid rotation in clinical practice.
Collapse
Affiliation(s)
- Howard S Smith
- Department of Anesthesiology, Albany Medical College, Albany, NY, USA
| | - John F Peppin
- Global Scientific Affairs, Mallinckrodt Pharmaceuticals, St Louis, MO, USA ; Center for Bioethics, Pain Management and Medicine, St Louis, MO, USA
| |
Collapse
|
33
|
Carr AC, Vissers MCM, Cook JS. The effect of intravenous vitamin C on cancer- and chemotherapy-related fatigue and quality of life. Front Oncol 2014; 4:283. [PMID: 25360419 PMCID: PMC4199254 DOI: 10.3389/fonc.2014.00283] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2014] [Accepted: 09/29/2014] [Indexed: 12/30/2022] Open
Abstract
Cancer patients commonly experience a number of symptoms of disease progression and the side-effects of radiation therapy and adjuvant chemotherapy, which adversely impact on their quality of life (QOL). Fatigue is one of the most common and debilitating symptom reported by cancer patients and can affect QOL more than pain. Several recent studies have indicated that intravenous (IV) vitamin C alleviates a number of cancer- and chemotherapy-related symptoms, such as fatigue, insomnia, loss of appetite, nausea, and pain. Improvements in physical, role, cognitive, emotional, and social functioning, as well as an improvement in overall health, were also observed. In this mini review, we briefly cover the methods commonly used to assess health-related QOL in cancer patients, and describe the few recent studies examining the effects of IV vitamin C on cancer- and chemotherapy-related QOL. We discuss potential mechanisms that might explain an improvement in QOL and also considerations for future studies.
Collapse
Affiliation(s)
- Anitra C Carr
- Department of Pathology, Centre for Free Radical Research, University of Otago , Christchurch , New Zealand
| | - Margreet C M Vissers
- Department of Pathology, Centre for Free Radical Research, University of Otago , Christchurch , New Zealand
| | - John S Cook
- New Brighton Health Care , Christchurch , New Zealand
| |
Collapse
|
34
|
Mercadante S, Porzio G, Adile C, Aielli F, Cortegiani A, Dickenson A, Casuccio A. Tapentadol at medium to high doses in patients previously receiving strong opioids for the management of cancer pain. Curr Med Res Opin 2014; 30:2063-2068. [PMID: 24926734 DOI: 10.1185/03007995.2014.934793] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/10/2014] [Indexed: 11/23/2022]
Abstract
OBJECTIVE The aim of this study was to assess the efficacy and tolerability of tapentadol (TP) for a period of 4 weeks in patients who were already treated by opioids. METHODS A convenience sample of 30 patients was selected for a prospective observational cohort study. Cancer patients who were receiving at least 60 mg of oral morphine equivalents were selected. Patients discontinued their previous opioid analgesics before starting TP, in doses calculated according the previous opioid consumption (1:3.3 ratio with oral morphine equivalents). The subsequent doses were changed according to the patients' needs for a period of 4 weeks. Oral morphine was offered as a breakthrough pain medication. Pain and symptom intensity were recorded at weekly intervals. Distress score (DS) was calculated from the sum of symptom intensities. TP opioid escalation indexes (TPEI) for the study period were calculated. RESULTS Nineteen patients were male, and the mean age was 63.5 years (±11.5). The mean Karnofsky status was 62.9 (±10). The mean dose of oral morphine equivalents before switching to TP was 112 mg (±57) and the initial mean dose of TP was 343 mg (±150). Pain intensity significantly decreased. Tapentadol escalation index in percentage was 1.26 (TPEI% ± 2.6) and Tapentadol escalation index in mg was 2.76 (TPEImg ± 4.96). No significant relationships were found with primary tumor (TPEI%, p = 0.204; TPEImg, p = 0.180), pain mechanism (TPEI%, p = 0.863; TPEImg, p = 0.846), age (TPEI%, p = 0.882; TPEImg, p = 0.884), or gender (TPEI%, p = 0.287; TPEImg, p = 0.325). DS decreased, but non-significantly (p = 0.1). Ten patients did not complete the study period: five patients discontinued TP for uncontrolled pain, despite increasing doses of TP over 600 mg/day. Two patients discontinued TP for adverse effects and three patients dropped out, one patient for poor compliance and two patients for unrecorded reasons. CONCLUSION In our sample, TP used in doses of 350-450 mg/day was well tolerated and effective in opioid tolerant patients with cancer pain and could be considered as a flexible drug to be used for the management of moderate to severe cancer pain. Like most studies in patients with cancer pain, it was limited by its open-label, uncontrolled design, the number of patients lost in follow-up, and discontinuation of the treatment for several reasons. Further studies in a large number of patients should confirm these preliminary results.
Collapse
Affiliation(s)
- Sebastiano Mercadante
- Anesthesia & Intensive Care and Pain Relief & Supportive Care, La Maddalena Cancer Center , Palermo , Italy
| | | | | | | | | | | | | |
Collapse
|
35
|
Skaer TL. Dosing considerations with transdermal formulations of fentanyl and buprenorphine for the treatment of cancer pain. J Pain Res 2014; 7:495-503. [PMID: 25170278 PMCID: PMC4145844 DOI: 10.2147/jpr.s36446] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Opioids continue to be first-line pharmacotherapy for patients suffering from cancer pain. Unfortunately, subtherapeutic dosage prescribing of pain medications remains common, and many cancer patients continue to suffer and experience diminished quality of life. A large variety of therapeutic options are available for cancer pain patients. Analgesic pharmacotherapy is based on the patient’s self-report of pain intensity and should be tailored to meet the requirements of each individual. Most, if not all, cancer pain patients will ultimately require modifications in their opioid pharmacotherapy. When changes in a patient’s medication regimen are needed, adequate pain control is best maintained through appropriate dosage conversion, scheduling immediate release medication for withdrawal prevention, and providing as needed dosing for breakthrough pain. Transdermal opioids are noninvasive, cause less constipation and sedation when compared to oral opioids, and may improve patient compliance. A relative potency of 100:1 is recommended when converting the patient from oral morphine to transdermal fentanyl. Based on the limited data available, there is significant interpatient variability with transdermal buprenorphine and equipotency recommendations from oral morphine of 75:1–110:1 have been suggested. Cancer patients may require larger transdermal buprenorphine doses to control their pain and may respond better to a more aggressive 75–100:1 potency ratio. This review outlines the prescribing of transdermal fentanyl and transdermal buprenorphine including how to safely and effectively convert to and use them for those with cancer pain.
Collapse
Affiliation(s)
- Tracy L Skaer
- College of Pharmacy, Washington State University, Spokane, WA, USA
| |
Collapse
|
36
|
Mercadante S, Guccione C, Di Fatta S, Alaimo V, Prestia G, Bellingardo R, Gebbia V, Giarratano A, Casuccio A. Cancer pain management in an oncological ward in a comprehensive cancer center with an established palliative care unit. Support Care Cancer 2013; 21:3287-3292. [PMID: 23887738 DOI: 10.1007/s00520-013-1899-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2013] [Accepted: 06/26/2013] [Indexed: 01/09/2023]
Abstract
BACKGROUND This survey was performed to draw information on pain prevalence, intensity, and management from a sample of patients who were admitted to an oncologic center where a palliative care unit (PCU) has been established for 13 years. METHODS Cross-sectional survey in an oncological department performed 1 day per month for six consecutive months. RESULTS Of the 385 patients, 69.1, 19.2, 8.6, and 3.1 % had no pain, mild, moderate, and severe pain, respectively. Inpatients and patients with a low Karnofsky score showed higher levels of pain intensity (p < 0.0005). One hundred twenty-eight patients with pain or receiving analgesics were analyzed for pain management index (PMI). Only a minority of patients had negative PMI score, which was statistically associated with inpatient admission (p = 0.011). Fifty of these 128 patients had breakthrough pain (BTP), and all of them were receiving some medication for BTP. CONCLUSION It is likely that the presence of PCU team providing consultation, advices, and cultural pressure, other than offering admissions for difficult cases had a positive impact on the use of analgesics, as compared with previous similar surveys performed in oncological setting, where a PCU was unavailable. This information confirms the need of the presence of a PCU in a high volume oncological department.
Collapse
Affiliation(s)
- Sebastiano Mercadante
- Anesthesia & Intensive Care and Pain Relief & Palliative Care Unit, La Maddalena Cancer Center, and Palliative Medicine, University of Palermo, Via S. Lorenzo 312, 90145, Palermo, Italy,
| | | | | | | | | | | | | | | | | |
Collapse
|
37
|
Raffa RB, Pergolizzi JV. A modern analgesics pain ‘pyramid’. J Clin Pharm Ther 2013; 39:4-6. [DOI: 10.1111/jcpt.12110] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2013] [Accepted: 10/14/2013] [Indexed: 11/30/2022]
Affiliation(s)
- R. B. Raffa
- Department of Pharmaceutical Sciences; Temple University School of Pharmacy; Philadelphia PA USA
| | - J. V. Pergolizzi
- Department of Medicine; Johns Hopkins University School of Medicine; Baltimore MD USA
- Department of Anesthesiology; Georgetown University School of Medicine; Washington DC USA
| |
Collapse
|
38
|
Ge ZH, Wang ZX, Yu TL, Yang N, Sun Y, Hao CL, Sun LX. Morphine improved the antitumor effects on MCF-7 cells in combination with 5-Fluorouracil. Biomed Pharmacother 2013; 68:299-305. [PMID: 24210071 DOI: 10.1016/j.biopha.2013.09.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2013] [Accepted: 09/24/2013] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND The most frequently used opioid in cancer pain management is morphine which remains a cornerstone for the management of cancer pain, due to the largest experience existing among physicians and widely availability in a variety of formulation. Considering that analgesics on cancer pain is often under the condition of chemotherapy and 5-Fluorouracil (5-FU) is widely used today as a potent drug for the treatment of advanced cancers, whether analgesics such as morphine, interferes the chemotherapy such as 5-FU, arose as a considerable problem. METHODS In this study, the MCF-7 breast cancer cells were used to determine the antitumor effects of the 5-FU in combination with morphine. The cell proliferation was determined by the 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide (MTT) assay and the apoptosis was determined by the Annexin V/PI staining and flow cytometry. The immunocytochemistry and western blot was used to determine the Bcl-2 and Bax expression. RESULTS It was shown that in MCF-7 cells, the proliferation was inhibited, the apoptosis was promoted, the Bcl-2 expression was suppressed and the Bax expression was promoted by both 5-FU alone and morphine alone, while the superior effects were achieved in combination with the two drugs. CONCLUSION These results suggest that the morphine may have the beneficial effects on the antitumor chemotherapy with 5-FU, in stead of interferential effects.
Collapse
Affiliation(s)
- Zhi-Hua Ge
- Affiliated Hospital of Chengde Medical College, Hebei province, 067000 Chengde, PR China
| | - Zhi-Xue Wang
- Affiliated Hospital of Chengde Medical College, Hebei province, 067000 Chengde, PR China
| | - Tie-Li Yu
- Affiliated Hospital of Chengde Medical College, Hebei province, 067000 Chengde, PR China
| | - Ning Yang
- Affiliated Hospital of Chengde Medical College, Hebei province, 067000 Chengde, PR China
| | - Yu Sun
- Affiliated Hospital of Chengde Medical College, Hebei province, 067000 Chengde, PR China
| | - Chang-Lai Hao
- Affiliated Hospital of Chengde Medical College, Hebei province, 067000 Chengde, PR China.
| | - Li-Xin Sun
- Affiliated Hospital of Chengde Medical College, Hebei province, 067000 Chengde, PR China.
| |
Collapse
|
39
|
Mercadante S, Prestia G, Ranieri M, Giarratano A, Casuccio A. Opioid use and effectiveness of its prescription at discharge in an acute pain relief and palliative care unit. Support Care Cancer 2013; 21:1853-1859. [PMID: 23400316 DOI: 10.1007/s00520-013-1740-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2012] [Accepted: 01/28/2013] [Indexed: 10/27/2022]
Abstract
The aim of this study was to present how opioids are used in an acute pain relief and palliative care unit (APRPCU), where many patients with difficult pain conditions are admitted from GPs, home palliative care programs, oncology departments, other hospitals or emergency units, and other regional places. From a consecutive sample of cancer patients admitted to an APRPCU for a period of 6 months, patients who had been administered opioids were included in this survey. Basic information was collected as well as opioid therapy prescribed at admission and, subsequently, during admission and at time of discharge. Patients were discharged once stabilization of pain and symptoms were obtained and the treatment was considered to be optimized. One week after being discharged, patients or relatives were contacted by phone to gather information about the availability of opioids at dosages prescribed at time of discharge. One hundred eighty six of 231 patients were specifically admitted for uncontrolled pain, with a mean pain intensity of 6.8 (SD 2.5). The mean dose of oral morphine equivalents in patients receiving opioids before admission was 45 mg/day (range 10-500 mg). One hundred seventy five patients (75.7 %) were prescribed around the clock opioids at admission. About one third of patients changed treatment (opioid or route). Forty two of 175 (24 %), 27/58 (46.5 %), 10/22 (45.4 %), and 2/4 (50 %) patients were receiving more than 200 mg of oral morphine equivalents, as maximum dose of the first, second, third, and fourth opioid prescriptions, respectively. The pattern of opioids changed, with the highest doses administered with subsequent line options. The mean final dose of opioids, expressed as oral morphine equivalents, for all patients was 318 mg/day (SD 798), that is more than six times the doses of pre-admission opioid doses. One hundred eighty six patients (80.5 %) were prescribed a breakthrough cancer pain (BTcP) medication at admission. Sixty five patients changed their BTcP prescription, and further 27 patients changed again. Finally, eight patients were prescribed a fourth BTcP medication. Of 46 patients available for interview, the majority of them (n = 39, 84 %) did not have problems with their GPs, who facilitated prescription and availability of opioids at the dosages prescribed at discharge. For patients with severe distress, APRPCUs may guarantee a high-level support to optimize pain and symptom intensities providing intensive approach and resolving highly distressing situations in a short time by optimizing the use of opioids.
Collapse
Affiliation(s)
- Sebastiano Mercadante
- Pain relief and palliative care unit, La Maddalena Cancer Center, Via San Lorenzo 312, 90146 Palermo, Italy.
| | | | | | | | | |
Collapse
|
40
|
Kumar SP, Prasad K, Kumar VK, Shenoy K, Sisodia V. Mechanism-based Classification and Physical Therapy Management of Persons with Cancer Pain: A Prospective Case Series. Indian J Palliat Care 2013; 19:27-33. [PMID: 23766592 PMCID: PMC3680836 DOI: 10.4103/0973-1075.110225] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Context: Mechanism-based classification (MBC) was established with current evidence and physical therapy (PT) management methods for both cancer and for noncancer pain. Aims: This study aims to describe the efficacy of MBC-based PT in persons with primary complaints of cancer pain. Settings and Design: A prospective case series of patients who attended the physiotherapy department of a multispecialty university-affiliated teaching hospital. Material and Methods: A total of 24 adults (18 female, 6 male) aged 47.5 ± 10.6 years, with primary diagnosis of heterogeneous group of cancer, chief complaints of chronic disabling pain were included in the study on their consent for participation The patients were evaluated and classified on the basis of five predominant mechanisms for pain. Physical therapy interventions were recommended based on mechanisms identified and home program was prescribed with a patient log to ensure compliance. Treatments were given in five consecutive weekly sessions for five weeks each of 30 min duration. Statistical Analysis Used: Pre–post comparisons for pain severity (PS) and pain interference (PI) subscales of Brief pain inventory-Cancer pain (BPI-CP) and, European organization for research and treatment in cancer-quality of life questionnaire (EORTC-QLQ-C30) were done using Wilcoxon signed-rank test at 95% confidence interval using SPSS for Windows version 16.0 (SPSS Inc, Chicago, IL). Results: There were statistically significant (P < 0.05) reduction in pain severity, pain interference and total BPI-CP scores, and the EORTC-QLQ-C30. Conclusion: MBC-PT was effective for improving BPI-CP and EORTC-QLQ-C30 scores in people with cancer pain.
Collapse
Affiliation(s)
- Senthil P Kumar
- Department of Physiotherapy, Kasturba Medical College, Manipal University, Mangalore, India
| | | | | | | | | |
Collapse
|
41
|
Beutlhauser T, Oeltjenbruns J, Schäfer M. Durchbruchschmerzen und kurz wirksame Opioide. Anaesthesist 2013; 62:431-9. [DOI: 10.1007/s00101-013-2193-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
42
|
Mercadante S, Porzio G, Aielli F, Adile C, Verna L, Ficorella C, Giarratano A, Casuccio A. Opioid switching from and to tapentadol extended release in cancer patients: conversion ratio with other opioids. Curr Med Res Opin 2013; 29:661-666. [PMID: 23540512 DOI: 10.1185/03007995.2013.791617] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
OBJECTIVES The aim of this exploratory study was to assess the conversion ratios between tapentadol and other opioids in patients requiring an opioid switching. METHODS A prospective study was carried out in a convenience sample of consecutive patients admitted to an acute palliative care unit and a home care unit for a period of 1 year. Patients who were switched from/to tapentadol were selected. The initial ratio between tapentadol and other opioids, expressed as oral morphine equivalents was 1:3.3. The subsequent doses were flexible and were changed to fit the patients' needs. Pain intensity and distress score were recorded until opioid doses were stable. In all, 37 patients were examined; 24 and 13 patients were switched from and to tapentadol, respectively. RESULTS The most frequent sequences were tapentadol-morphine (18 patients) in one direction, and morphine-tapentadol (8 patients) in the other direction. In the sequence tapentadol-morphine and morphine-tapentadol, the mean final tapentadol-morphine ratios were 3.9:1 (SD 2.3), and 1:4.5 (SD 3.2), respectively, which did not differ significantly from the initial established conversion ratio. A minority of patients were switched from/to tapentadol to/from other opioids. Globally, the initial ratio did not change after switching took place. CONCLUSION Data suggest that a conversion ratio between tapentadol and other opioids, expressed in oral morphine equivalents could be 1:3.3 in both direction, particularly in patients who are switched in conditions of equianalgesia. The limited number of patients prevents a definitive conclusion to be drawn, and data should be interpreted with caution, given the exploratory nature of the study and the question of the low number of patients should be addressed in future studies.
Collapse
Affiliation(s)
- Sebastiano Mercadante
- Anesthesia & Intensive Care Unit and Pain Relief & Palliative Care Unit, La Maddalena Cancer Center, Palermo, Italy.
| | | | | | | | | | | | | | | |
Collapse
|
43
|
Affiliation(s)
- Shahid G Farid
- Specialist Registrar, General Surgery, Northampton General Hospital, Northampton NN5 5HQ,
| | | | - Raj Prasad
- Clinical Director, Transplant and General and Hepatopancreaticobiliary Surgery in the Hepatobiliary and Transplantation Unit, St James University Hospital, Leeds
| |
Collapse
|
44
|
Farid SG, Prasad KR, Morris-Stiff G. Operative terminology and post-operative management approaches applied to hepatic surgery: Trainee perspectives. World J Gastrointest Surg 2013; 5:146-155. [PMID: 23710292 PMCID: PMC3662871 DOI: 10.4240/wjgs.v5.i5.146] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2012] [Revised: 02/20/2013] [Accepted: 03/29/2013] [Indexed: 02/06/2023] Open
Abstract
Outcomes in hepatic resectional surgery (HRS) have improved as a result of advances in the understanding of hepatic anatomy, improved surgical techniques, and enhanced peri-operative management. Patients are generally cared for in specialist higher-level ward settings with multidisciplinary input during the initial post-operative period, however, greater acceptance and understanding of HRS has meant that care is transferred, usually after 24-48 h, to a standard ward environment. Surgical trainees will be presented with such patients either electively as part of a hepatobiliary firm or whilst covering the service on-call, and it is therefore important to acknowledge the key points in managing HRS patients. Understanding the applied anatomy of the liver is the key to determining the extent of resection to be undertaken. Increasingly, enhanced patient pathways exist in the post-operative setting requiring focus on the delivery of high quality analgesia, careful fluid balance, nutrition and thromboprophlaxis. Complications can occur including liver, renal and respiratory failure, hemorrhage, and sepsis, all of which require prompt recognition and management. We provide an overview of the relevant terminology applied to hepatic surgery, an approach to the post-operative management, and an aid to developing an awareness of complications so as to facilitate better confidence in this complex subgroup of general surgical patients.
Collapse
|
45
|
Pain questionnaire performance in advanced prostate cancer: comparative results from two international clinical trials. Qual Life Res 2013; 22:2777-86. [PMID: 23589119 DOI: 10.1007/s11136-013-0411-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/08/2013] [Indexed: 12/22/2022]
Abstract
PURPOSE To compare pain assessment questionnaires commonly used in advanced prostate cancer trials and to determine the psychometric characteristics and longitudinal relationships by contrasting questionnaire data from two international phase 2 trials. METHODS Scores from the Present Pain Intensity (PPI) question of the McGill Pain Questionnaire, the pain intensity scale of the Brief Pain Inventory (BPI), and the Functional Assessment of Cancer Therapy-Prostate (FACT-P) were analyzed using Pearson correlation, intraclass correlation coefficient, and Cronbach's α, respectively. Concordance was evaluated with Cohen's kappa coefficient and McNemar test at baseline (n = 224) and two subsequent observations. RESULTS PPI and FACT-P scores were associated with the BPI score at baseline for Trials 1 and 2: PPI r = 0.66 and 0.80, respectively (P < 0.001); FACT-P (pain scale) r = -0.76 and -0.82, respectively (P < 0.001). However, concordance analysis revealed that the BPI identified pain (score > 0) at higher rates than the PPI: at baseline, BPI: 89 % (64/72) and 77 % (95/124), PPI: 68 % (49/72) and 64 % (79/124) [Trials 1 and 2, respectively; McNemar test (P < 0.001) for both studies]. The FACT-P pain scale identified pain similarly to the BPI pain intensity scale; longitudinal analysis produced comparable findings. All pain scales met standard psychometric acceptability criteria, but the BPI and FACT-P performed better than the PPI. CONCLUSIONS Data suggest the BPI pain intensity and FACT-P pain scales are better than the PPI question at capturing the pain experience among patients with advanced prostate cancer. Additional comparative research is needed in larger population samples.
Collapse
|
46
|
The poor use of methadone in Italian hospices. Support Care Cancer 2013; 21:2225-8. [DOI: 10.1007/s00520-013-1785-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2013] [Accepted: 03/04/2013] [Indexed: 10/27/2022]
|
47
|
Mercadante S, Porzio G, Ferrera P, Aielli F, Adile C, Ficorella C, Giarratano A, Casuccio A. Tapentadol in cancer pain management: a prospective open-label study. Curr Med Res Opin 2012; 28:1775-1779. [PMID: 23057488 DOI: 10.1185/03007995.2012.739151] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
OBJECTIVES The aim of this prospective, open-label study was to evaluate the efficacy and tolerability of tapentadol (TP) in the management of cancer pain. METHODS A 4 weeks' prospective study was carried out in 50 opioid-naive cancer patients with moderate-severe pain. Each patient initially received twice-daily doses of slow-release TP 50 mg. Doses were then managed to maintain adequate relief or dose-limiting toxicity, on the basis of the clinical response. The following parameters were recorded at weekly intervals for 4 weeks: pain and opioid-related adverse effects, quality of life measured with the Spitzer score, TP escalation index percent (TPEI%) and TP escalation index in mg (TPEImg), calculated at the end of the study, pain mechanisms, and PainDETECT at baseline. RESULTS Of 50 patients, 39 completed the entire study and 11 discontinued the treatment for different reasons. Pain intensity significantly decreased from baseline to all the week intervals (p < 0.0005), and adverse effects did not changed significantly, while quality of life improved. TP escalation indexes were low and no relationship was found with age, gender, and pain mechanisms. CONCLUSION Tapentalol started in doses of 100 mg/day was well-tolerated and effective in opioid-naive patients with cancer pain, regardless of the pain mechanism. It can be considered as a flexible drug to be used in patients with moderate-severe pain. LIMITATIONS This was an open-label study for exploratory purposes. Data should be confirmed in controlled studies with a larger number of patients.
Collapse
Affiliation(s)
- Sebastiano Mercadante
- Anesthesia & Intensive Care Unit, and Pain Relief & Palliative Care Unit, La Maddalena Cancer Center, 90146 Palermo, Italy.
| | | | | | | | | | | | | | | |
Collapse
|
48
|
Hagen NA, Lapointe B, Ong-Lam M, Dubuc B, Walde D, Gagnon B, Love R, Goel R, Hawley P, Ngoc AH, du Souich P. A multicentre open-label safety and efficacy study of tetrodotoxin for cancer pain. ACTA ACUST UNITED AC 2012; 18:e109-16. [PMID: 21655148 DOI: 10.3747/co.v18i3.732] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Cancer pain is highly prevalent, and existing treatments are often insufficient to provide adequate relief. OBJECTIVES We assessed the long-term safety and efficacy of subcutaneous tetrodotoxin treatment in reducing the intensity of chronic cancer-related pain. METHODS In this multicentre open-label longitudinal trial, 30 μg tetrodotoxin was administered subcutaneously twice daily for 4 days in a heterogeneous cohort of patients with persistent pain despite opioids and other analgesics. "Responder" was defined as a mean reduction of 30% or more in pain intensity from baseline; and "clinical responder" as some pain reduction, but less than 30%, plus agreement on the part of both the patient and the physician that a meaningful analgesic response to treatment had occurred. RESULTS Of 45 patients who entered the longitudinal trial, 41 had sufficient data for analysis. Of all 45 patients, 21 (47%) met the criteria for "responder" [16 patients (36%)] or "clinical responder" [5 patients (11%)]. Onset of pain relief was typically cumulative over days, and after administration ended, the analgesic effect subsided over the course of a few weeks. No evidence of loss of analgesic effect was observed during subsequent treatments (2526 patient-days in total and a maximum of 400 days in 1 patient). One patient withdrew from the study because of adverse events. Toxicity was usually mild (82%) or moderate (13%), and remained so through subsequent treatment cycles, with no evidence of cumulative toxicity or tolerance. CONCLUSIONS Long-term treatment with tetrodotoxin is associated with acceptable toxicity and, in a substantial minority of patients, resulted in a sustained analgesic effect. Further study of tetrodotoxin for moderate-to-severe cancer pain is warranted.
Collapse
Affiliation(s)
- N A Hagen
- Tom Baker Cancer Centre and Departments of Oncology, Clinical Neurosciences, and Medicine, University of Calgary, Calgary, AB.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
49
|
Pain and other symptoms and their relationship to quality of life in cancer patients on opioids. Qual Life Res 2012; 22:1273-80. [DOI: 10.1007/s11136-012-0264-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/03/2012] [Indexed: 11/12/2022]
|
50
|
Takahashi H, Mizuno H, Yanagisawa A. High-dose intravenous vitamin C improves quality of life in cancer patients. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.pmu.2012.05.008] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
|