Study in Healthy Volunteers to Evaluate the Safety, Tolerability, Pharmacokinetics and Pharmacodynamics of GS-9674 (Cilofexor), and the Effect of Food on GS-9674 Pharmacokinetics and Pharmacodynamics

Summary

This study will evaluate the safety and tolerability of escalating single- and multiple-oral doses of cilofexor, and characterize the single- and multiple-dose pharmacokinetics (PK) of cilofexor. The study will be conducted in 3 parts (Part A, Part B, and Part C). Participants will receive either cilofexor or cilofexor placebo. Part A will proceed in 4 prespecified staggered cohorts. Within each cohort, the cumulative, blinded safety data will be evaluated for dose escalation from single-dose (Period 1) to multiple-dose (Period 2). Based on the available safety, pharmacokinetics, and/or pharmacodynamics (PD) data from cohorts in Part A and Part C (if applicable), total daily doses and frequency of dosing will be chosen for the cohorts in Part B. Parts B and C will consist of adaptive cohorts and may be initiated in parallel. Part B cohorts may be initiated in parallel with cohorts in Part A if the total dose under evaluation is at or below a dose already evaluated. This study is partially blinded (no one is blinded on Day -1).

Timeline

Start

2016-01-20

Primary completion

2016-07-14

Completion

2016-07-14

Publications

• Background Djedjos CS, Kirby BJ, Billin A, Gosink J, Song Q, Srihari R, et al. Pharmacodynamic Effects of the Oral, Non-Steroidal Farnesoid X Receptor Agonist GS-9674 in Healthy Volunteers. The 67th Annual Meeting of the American Association for the Study of Liver Diseases: The Liver Meeting (AASLD); 2016 November 11-15; Boston MA United States.
• Background Kirby BJ, Djedjos CS, Birkeback J, Song Q, Grycz K, Weston J, et al. Evaluation of the Safety and Pharmacokinetics of the Oral, Nonsteroidal Farnesoid X Receptor Agonist GS-9674 in Healthy Volunteers. The 67th Annual Meeting of the American Association for the Study of Liver Diseases: The Liver Meeting (AASLD); 2016 November 11-15; Boston MA United States.

Drugs

Indications