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  • Title: Effect of a high-fat meal on thalidomide pharmacokinetics and the relative bioavailability of oral formulations in healthy men and women.
    Author: Teo SK, Scheffler MR, Kook KA, Tracewell WG, Colburn WA, Stirling DI, Thomas SD.
    Journal: Biopharm Drug Dispos; 2000 Jan; 21(1):33-40. PubMed ID: 11038436.
    Abstract:
    The effect of food on the oral pharmacokinetics of thalidomide and the relative bioavailability of two oral thalidomide formulations were determined in an open label, single dose, randomized, three-way crossover study. Five male and eight female healthy volunteers received a single oral dose of 200 mg Celgene thalidomide capsules under fasted and non-fasted conditions, and a single dose of 200 mg tablets of Serral thalidomide under fasted conditions. The high-fat meal resulted in a 0.5-1.5 h absorption lag time, an increased mean C(max), a decreased mean AUC and a delay in mean T(max). The Serral tablet formulation resulted in a lower mean C(max), and slower terminal decline in plasma thalidomide concentrations compared with both Celgene treatments. Mean C(max) concentrations were 1.99+/-0.41 microg/mL (range 1.28-2.76) within 4.00+/-1.13 h (2-5) for the Celgene formulation fasted, 2.17+/-0.51 microg/mL (1.43-3.01) within 6.08+/-2.33 h (3-12) for the Celgene formulation with food, and 1. 05+/-0.31 microg/mL (0.62-1.65) within 6.23+/-1.88 h (5-10) for the Serral formulation fasted. Mean terminal half-lives were 13.50+/-6. 77 h for the Serral product, compared with 5.80+/-1.72 h and 5. 09+/-1.03 h for Celgene fasted and fed, respectively. Celgene's formulation exhibited slightly greater bioavailability than Serral's formulation, with mean ratios of 122% and 110% for Ln-transformed AUC(0-t) and AUC(0-infinity), respectively. The mean C(max) for the Celgene formulation was approximately two times greater than Serral's. Food delayed the onset of absorption of by 0.5-1.5 h, but had little effect on the extent of absorption from the Celgene capsule. Under fasted conditions, the Celgene thalidomide resulted in a two-fold greater C(max) and 10% greater AUC(0-infinity) than the Serral formulation.
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