PMID- 18498914 OWN - NLM STAT- MEDLINE DCOM- 20081118 LR - 20190923 IS - 0149-2918 (Print) IS - 0149-2918 (Linking) VI - 30 IP - 4 DP - 2008 Apr TI - Pharmacokinetic and bioequivalence comparison of a single 100-mg dose of cefteram pivoxil powder suspension and tablet formulations: a randomized-sequence, open-label, two-period crossover study in healthy Chinese adult male volunteers. PG - 654-60 AB - BACKGROUND: Cefteram pivoxil (CFTM-PI) is an oral antibiotic available in powder suspension and tablet formulations indicated in China for the treatment of bacterial infections. Although these 2 formulations are marketed in China, published information regarding their pharmacokinetics and bioequivalence in the Chinese population is not available. OBJECTIVE: The aim of this study was to compare the pharmacokinetics and bioequivalence of the powder suspension (test) and tablet (reference) formulations of CFTM-PI 100 mg available in China. METHODS: This single-dose, randomized-sequence, open-label, 2-period crossover study was performed at the Nanjing First Hospital of Nanjing Medical University. Eligible subjects were healthy male volunteers who were randomly assigned at a 1:1 ratio to receive a single 100-mg dose of the test or reference formulation, followed by a 1-week washout period and administration of the alternate formulation. The study drugs were administered after a 12-hour overnight fast. Plasma was assayed using a high-performance liquid chromatography method. For analysis of pharmacokinetic properties, including C(max), AUC from time 0 (baseline) to 6 hours (AUC(0-6)), and AUC from baseline to infinity (AUC(0-infinity)), blood samples were obtained at intervals over the 6-hour period after study drug administration. The formulations were considered bioequivalent if the log-transformed ratios of C(max) and AUC were within the predetermined equivalence range (80%-125%) as established by the US Food and Drug Administration (FDA). Tolerability was assessed by monitoring vital signs and laboratory tests (hematology, blood biochemistry, hepatic function, and urinalysis), and by questioning subjects about adverse events (AEs). RESULTS: Twenty-four Chinese male subjects (mean [range] age,24.2 [23-32] years;weight,64.3 [58-67] kg; height, 172 [167-185] cm) enrolled; all completed the study. No period or sequence effect was observed. The 90% CIs for the log-transformed ratios of C(max), AUC(0-6;), and AUC(0-infinity) were 96.5 to 120.1, 95.7 to 110.2, and 96.2 to 110.4, respectively (all, P>0.05). Similar results were found for the data without log-transformation. No AEs occurred or were reported during the study. CONCLUSIONS: In this small study in healthy Chinese adult male volunteers, a single 100-mg dose of the powder-suspension formulation was bioequivalent to a single 100-mg dose of the tablet formulation based on the US FDA's regulatory definition (rate and extent of absorption). Both formulations were well tolerated. FAU - Zou, Jianjun AU - Zou J AD - Department of Clinical Pharmacology, Nanjing First Hospital of Nanjing Medical University, Nanjing, China. FAU - Di, Bin AU - Di B FAU - Wu, Chun Yong AU - Wu CY FAU - Hu, Qin AU - Hu Q FAU - Li, Jian Hua AU - Li JH FAU - Zhu, Yubing AU - Zhu Y FAU - Fan, Hongwei AU - Fan H FAU - Xiao, DaWei AU - Xiao D FAU - Wang, Guang Ji AU - Wang GJ LA - eng PT - Clinical Trial, Phase II PT - Comparative Study PT - Journal Article PT - Randomized Controlled Trial PL - United States TA - Clin Ther JT - Clinical therapeutics JID - 7706726 RN - 0 (Powders) RN - 0 (Tablets) RN - 0OD86RT58C (cefteram pivoxil) RN - KBZ4844CXN (Cefmenoxime) SB - IM MH - Administration, Oral MH - Adult MH - Bacterial Infections/blood/drug therapy MH - Cefmenoxime/administration & dosage/*analogs & derivatives/pharmacokinetics MH - China MH - Chromatography, High Pressure Liquid MH - Cross-Over Studies MH - Dose-Response Relationship, Drug MH - Drug Compounding MH - Drug Tolerance MH - Follow-Up Studies MH - Humans MH - Male MH - Powders MH - Reference Values MH - Tablets MH - Therapeutic Equivalency EDAT- 2008/05/24 09:00 MHDA- 2008/11/19 09:00 CRDT- 2008/05/24 09:00 PHST- 2008/02/21 00:00 [accepted] PHST- 2008/05/24 09:00 [pubmed] PHST- 2008/11/19 09:00 [medline] PHST- 2008/05/24 09:00 [entrez] AID - S0149-2918(08)00142-2 [pii] AID - 10.1016/j.clinthera.2008.04.003 [doi] PST - ppublish SO - Clin Ther. 2008 Apr;30(4):654-60. doi: 10.1016/j.clinthera.2008.04.003.