Journal
CLINICAL DRUG INVESTIGATION
Volume 33, Issue 11, Pages 795-800Publisher
ADIS INT LTD
DOI: 10.1007/s40261-013-0124-7
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- Janssen Research & Development, LLC
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Golimumab is an anti-tumor necrosis factor-alpha human immunoglobulin G1(kappa) monoclonal antibody that is efficacious for the treatment of moderate to severe rheumatoid arthritis, psoriatic arthritis, and ankylosing spondylitis in adults. The objective of this study was to assess the pharmacokinetic characteristics of golimumab in healthy male Chinese subjects following a single subcutaneous (SC) administration of golimumab 50 or 100 mg. The safety, tolerability, and immunogenicity of a single SC administration of golimumab in Chinese subjects were also evaluated. This was a phase I, randomized, open-label, single-dose, single-period, single-center study. Twenty-four healthy male Chinese subjects were randomized (1:1) to receive a single SC administration of golimumab 50 or 100 mg. Serial blood samples for the measurement of serum golimumab concentrations were collected and analyzed using a validated electrochemiluminescent immunoassay method. The pharmacokinetic parameters [maximum observed serum concentration (C-max), time to reach C-max (t(max)), area under the serum concentration-time curve from time zero to infinity (AUC(a)), and terminal half-life (t(A1/2))] of golimumab were derived using a noncompartmental analysis. Following a single SC administration of golimumab 50 or 100 mg in Chinese male subjects (age 19-41 years, body weight 60-76 kg), mean +/- A standard deviation C-max (3.6 +/- A 1.6 and 7.5 +/- A 1.4 mu g/mL, respectively) and AUC(a) (59.8 +/- A 19.8 and 132.8 +/- A 27.0 mu g center dot day/mL, respectively) increased in a dose-proportional manner. The median t(max) was in the range of 4.5-5.0 days, and the mean t(A1/2) was in the range of 10.8-11.9 days. Among 24 subjects, 23 had appropriate samples for evaluation of antibodies to golimumab, and one subject (1/23, 4.3%) in the 100-mg group tested positive. Three mild adverse events were reported (infected sebaceous cyst, upper respiratory tract infection, and headache), all in the 50-mg group; none were considered to be related to the study agent. Golimumab exhibited linear pharmacokinetics at dose levels of 50 and 100 mg following a single SC administration in healthy Chinese subjects. Single SC administrations of golimumab 50 or 100 mg were considered to be generally well tolerated. The results from this study indicate that there are no apparent ethnic differences in the pharmacokinetics of golimumab between Chinese and Caucasian subjects.
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