Plasma pharmacokinetics and synovial concentrations of S-flurbiprofen plaster in humans

Autor: Yuichi Hoshino, Noboru Otsuka, Ichimaro Yamada, Isao Matsushita, Hideo Matsumoto, Kazuo Uebaba, Miho Kamezawa, Ikuko Yataba, Sigeru Sasaki
Jazyk: angličtina
Rok vydání: 2015
Předmět:
Zdroj: European Journal of Clinical Pharmacology
ISSN: 1432-1041
0031-6970
Popis: Purpose The purpose of this study is to investigate the pharmacokinetics and deep tissue penetration capability of the newly developed S-flurbiprofen plaster (SFPP) in humans. Methods Study 1: SFPP tape-type patch (2–60 mg) was applied to the lower back for 24 h in healthy adult volunteers. S-flurbiprofen (SFP) plasma concentration was measured over time to examine SFP pharmacokinetics. Study 2: SFPP (20 mg) was applied for 12 h to the affected knee of osteoarthritis (OA) patients who were scheduled for total knee arthroplasty. Deep tissues (synovial tissue and synovial fluid) were collected during surgery to compare SFP concentrations after application of SFPP or a commercially available flurbiprofen (FP) gel-type patch. Results Study 1: The plasma concentration of SFP was sustained during 24-h topical application of the SFPP, showing a high percutaneous absorption ratio of 51.4–72.2 %. Cmax and AUC0-∞ were dose-proportional. Study 2: After application of the SFPP for 12 h, SFP concentrations in the synovial tissue and synovial fluid were 14.8-fold (p = 0.002) and 32.7-fold (p
Databáze: OpenAIRE