Editorial
Copyright ©2011 Baishideng Publishing Group Co.
World J Gastroenterol. Jan 28, 2011; 17(4): 419-432
Published online Jan 28, 2011. doi: 10.3748/wjg.v17.i4.419
Table 2 Randomized, controlled trials and cohort studies comparing efficacy of peginterferon α-2a vsα-2b in combination with ribavirin for treatment-naïve patients
AuthorsCountryStudy designPeg-IFNα (μg/wk)Ribavirin (mg/d)No. of patientsSVR rate (α-2a vsα-2b) (%)P value
McHutchison et al[27], 2009USARCT, IDEAL study, industry-initiated, multicenter2a: 1802a: 1000-12002a: 1035140.9 vs 38.0 or 39.8NS
2b: 1.0/kg or 1.5/kg2b: 800-14002b: 10161 or 10191
Ascione et al[29], 2010ItalyRCT, investigator-initiated, single-center2a: 1802a: 1000-12002a: 160268.8 vs 54.40.008
2b: 1.52b: 1000-12002b: 1602
Rumi et al[28], 2010ItalyRCT, MIST study, investigator-initiated, single-center2a: 1802a: 1000-12002a: 212266 vs 540.020
2b: 1.52b: 800-14002b: 2192
Yenice et al[120], 2006TurkeyRCT, investigator-initiated, single-center2a: 1802a: 800-12002a: 37148.6 vs 35.1NS
2b: 1.52b: 800-12002b: 371
Craxi et al[26], 2008ItalyProspective, PROBE study, industry-initiated, multicenter2a: 1802a: 1000-12002a: 663136 vs 290.020
2b: 1.52b: 1000-12002b: 3541
Witthoeft et al[75], 2008GermanyRetrospective, PRACTICE study, industry-initiated, multicenter, matched pair2a: 1802a: Not stated2a: 848259.3 vs 53.00.008
2b: 1.52b: Not stated2b: 8482
Backus et al[25], 2007USARetrospective, United States veterans, government-initiated, multicenter2a: 1802a: 1000-12002a: 2091225 vs 18< 0.001
2b: 1.52b: 800-14002b: 38532