Feasibility and efficacy evaluation of metallic biliary stents eluting gemcitabine and cisplatin for extrahepatic cholangiocarcinoma

Figure 2 Cumulative drug release of different biliary drug-eluting stents with different drug-loading ratios. A: Release curves of gemcitabine from PLCL-GEM-eluting stents; B: Release curves of cisplatin from PLCL-CIS-eluting stents; C: Release curves of (a) gemcitabine and (b) cisplatin from PLCL-GEM and CIS-eluting stents. CIS: Cisplatin; GEM: Gemcitabine; PLCL: Poly-L-lactide-caprolactone.