PMID- 24417786 OWN - NLM STAT- MEDLINE DCOM- 20141104 LR - 20141120 IS - 1879-114X (Electronic) IS - 0149-2918 (Linking) VI - 36 IP - 1 DP - 2014 Jan 1 TI - Effects of ketoconazole on the pharmacokinetic properties of CG100649, a novel NSAID: a randomized, open-label crossover study in healthy Korean male volunteers. PG - 115-25 LID - S0149-2918(13)01119-3 [pii] LID - 10.1016/j.clinthera.2013.12.004 [doi] AB - BACKGROUND: CG100649, a novel selective cyclooxygenase-2 inhibitor that also inhibits carbonic anhydrase I/II, is expected to reduce the cardiovascular risk typical of other NSAIDs. Concurrent medications may influence the activities of the cytochrome P450 (CYP) 3A enzyme through which CG100649 is metabolized. OBJECTIVES: This study was designed to evaluate the influence of ketoconazole, a known strong inhibitor of CYP3A, on the pharmacokinetic properties of CG100649. METHODS: This randomized, open-label, 2 x 2 crossover study was conducted in healthy Korean male volunteers. Each subject received the following 2 treatments in a randomly allocated sequence, separated by a washout period of 42 days: single oral dose of CG100649 6 mg, and concurrent dosing of CG100649 6 mg and ketoconazole 400 mg followed by ketoconazole 400 mg/d over 4 days. Blood samples for pharmacokinetic analysis were collected at 0 (predose), 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 36, 48, 72, 96, 120, 144, 240, 384, and 480 hours after dosing of CG100649 in each sequence. Tolerability assessments were performed throughout the study. RESULTS: Thirty subjects participated, and 26 subjects completed the study. Seventeen adverse events (AEs) were reported in 10 subjects, and all AEs were recovered without any sequelae. No serious AEs were reported. Six subjects receiving the single dose of CG100649 had 9 AEs, and 7 subjects receiving the combination of ketoconazole and CG100649 had 8 AEs. The Cmax of CG100649 with CG100649 only and with concurrent administration of CG100649 + ketoconazole were similar (10.7 and 11.0 ng/mL, respectively). The CG100649 AUClast with concurrent ketoconazole was 1.29-fold greater than that with CG100649 only (2074.0 and 2685.8 ng . h/mL) and demonstrated a statistically significant difference (P < 0.05). However, there were no statistically significant differences in vital signs, clinical laboratory test results, ECGs, or AEs between treatments. CONCLUSION: Although the AUC of CG100649 increased by 29% with the concurrent medication of ketoconazole, it is considered that concurrent administration of CG100649 with ketoconazole would not change the safety profile of CG100649. CI - Copyright (c) 2014 Elsevier HS Journals, Inc. All rights reserved. FAU - Youn Choi, Hee AU - Youn Choi H AD - Department of Clinical Pharmacology and Therapeutics, Asan Medical Center, Seoul, Republic of Korea; University of Ulsan College of Medicine, Seoul, Republic of Korea. FAU - Jin, Seok-Joon AU - Jin SJ AD - Department of Clinical Pharmacology and Therapeutics, Asan Medical Center, Seoul, Republic of Korea; University of Ulsan College of Medicine, Seoul, Republic of Korea. FAU - Jung, Jin Ah AU - Jung JA AD - Department of Clinical Pharmacology and Therapeutics, Samsung Medical Center, Seoul, Republic of Korea. FAU - Kim, Un-Jib AU - Kim UJ AD - Department of Clinical Pharmacology and Therapeutics, Asan Medical Center, Seoul, Republic of Korea; University of Ulsan College of Medicine, Seoul, Republic of Korea. FAU - Ko, Young-Ju AU - Ko YJ AD - Department of Clinical Pharmacology and Therapeutics, Asan Medical Center, Seoul, Republic of Korea; University of Ulsan College of Medicine, Seoul, Republic of Korea. FAU - Noh, Yook-Hwan AU - Noh YH AD - Department of Clinical Pharmacology and Therapeutics, Asan Medical Center, Seoul, Republic of Korea; University of Ulsan College of Medicine, Seoul, Republic of Korea. FAU - Bae, Kyun-Seop AU - Bae KS AD - Department of Clinical Pharmacology and Therapeutics, Asan Medical Center, Seoul, Republic of Korea; University of Ulsan College of Medicine, Seoul, Republic of Korea. FAU - Lim, Hyeong-Seok AU - Lim HS AD - Department of Clinical Pharmacology and Therapeutics, Asan Medical Center, Seoul, Republic of Korea; University of Ulsan College of Medicine, Seoul, Republic of Korea. Electronic address: mdhslim@gmail.com. LA - eng SI - ClinicalTrials.gov/NCT01154764 PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't PL - United States TA - Clin Ther JT - Clinical therapeutics JID - 7706726 RN - 0 (Carbonic Anhydrase Inhibitors) RN - 0 (Cyclooxygenase 2 Inhibitors) RN - 0 (Cytochrome P-450 CYP3A Inhibitors) RN - R9400W927I (Ketoconazole) SB - IM MH - Administration, Oral MH - Adult MH - Carbonic Anhydrase Inhibitors/administration & dosage/*adverse effects/*pharmacokinetics MH - Cross-Over Studies MH - Cyclooxygenase 2 Inhibitors/administration & dosage/*adverse effects/*pharmacokinetics MH - *Cytochrome P-450 CYP3A Inhibitors MH - Drug Administration Schedule MH - Drug Synergism MH - Humans MH - Ketoconazole/administration & dosage/*adverse effects MH - Male MH - Middle Aged MH - Young Adult OTO - NOTNLM OT - CG100649 OT - COX-2 inhibitor OT - drug interaction OT - ketoconazole OT - pharmacokinetic EDAT- 2014/01/15 06:00 MHDA- 2014/11/05 06:00 CRDT- 2014/01/15 06:00 PHST- 2013/07/22 00:00 [received] PHST- 2013/11/07 00:00 [revised] PHST- 2013/12/06 00:00 [accepted] PHST- 2014/01/15 06:00 [entrez] PHST- 2014/01/15 06:00 [pubmed] PHST- 2014/11/05 06:00 [medline] AID - S0149-2918(13)01119-3 [pii] AID - 10.1016/j.clinthera.2013.12.004 [doi] PST - ppublish SO - Clin Ther. 2014 Jan 1;36(1):115-25. doi: 10.1016/j.clinthera.2013.12.004.