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Completed

NCT Number: NCT02654002

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

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).

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Key information

Conditions

Nonalcoholic Steatohepatitis (NASH) Digestive System Diseases Fatty Liver Liver Diseases Non-alcoholic Fatty Liver Disease

Age range

18 year–45 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 1

Primary location

SeaView Research, Inc

Miami, Florida, United States

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Key Inclusion Criteria:

  • Healthy male and non-pregnant, non-lactating female volunteers
  • Body mass index (BMI) 19 ≤ BMI ≤ 30 kg/m^2
  • Normal 12-lead electrocardiogram (ECG) or one with abnormalities that are considered clinically insignificant by the investigator
  • Normal renal function (estimated glomerular filtration rate calculated using the Cockcroft-Gault equation ≥ 80 mL/min)
  • No significant medical history, and in good general health as determined by the investigator at screening evaluation performed no more than 28 days prior to the scheduled first dose.

Note: Other protocol defined Inclusion/Exclusion criteria may apply.

Treatment and study plan

Cilofexor

Drug

Tablets administered orally

Other names: GS-9674

Placebo

Drug

Tablets administered orally

Primary outcomes

  1. Single-Dose Pharmacokinetic (PK) Parameter: AUClast of Cilofexor

    Time frame: Day 1: -0.5, 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 5, 6, 8, 10, 12, 16, 24, 48, 72, and 96 hours post-dose

    AUClast is defined as the concentration of drug from time zero to the last quantifiable concentration.

  2. Single-Dose PK Parameter: AUCinf of Cilofexor

    Time frame: Day 1: -0.5, 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 5, 6, 8, 10, 12, 16, 24, 48, 72, and 96 hours post-dose

    AUCinf is defined as the concentration of drug extrapolated to infinite time (area under the plasma concentration versus time curve extrapolated to infinite time).

  3. Single-Dose PK Parameter: Cmax of Cilofexor

    Time frame: Day 1: -0.5, 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 5, 6, 8, 10, 12, 16, 24, 48, 72, and 96 hours post-dose

    Cmax is defined as the maximum observed concentration of drug in plasma.

  4. Multiple-Dose PK Parameter: AUCtau of Cilofexor

    Time frame: Day 20: -0.5, 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 5, 6, 8, 10, 12, 16, 24, 48, 72, and 96 hours post-dose

    AUCtau is the concentration of drug over time (area under the plasma concentration versus time curve over the dosing interval).

  5. Multiple-Dose PK Parameter: Cmax of Cilofexor

    Time frame: Day 20: -0.5, 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 5, 6, 8, 10, 12, 16, 24, 48, 72, and 96 hours post-dose

    Cmax is defined as the maximum observed concentration of drug in plasma.

  6. Multiple-Dose PK Parameter: Ctau of Cilofexor

    Time frame: Day 20: -0.5, 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 5, 6, 8, 10, 12, 16, 24, 48, 72, and 96 hours post-dose

    Ctau is defined as the observed drug concentration at the end of the dosing interval.

  7. Percentage of Participants With at Least One Adverse Event (AE)

    Time frame: First dose date up to last dose date (Maximum: 20 days) plus 30 days

    An AE is any untoward medical occurrence in a clinical study participant administered a medicinal product, which does not necessarily have a causal relationship with the treatment. An AE can therefore be any unfavorable and/or unintended sign, symptom, or disease temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product.

  8. Percentage of Participants With Clinically Significant 12-Lead Electrocardiogram (ECG) Abnormalities

    Time frame: First dose date up to last dose date (Maximum: 20 days) plus 30 days

    Investigator determined the ECG findings were clinically significant.

  9. Percentage of Participants With Clinical Laboratory Abnormalities

    Time frame: First dose date up to last dose date (Maximum: 20 days) plus 30 days

    Treatment-emergent laboratory (Hematology, Chemistry, and Urinalysis) abnormalities were defined as values that increase at least one toxicity grade from baseline. Laboratory Abnormalities are graded by the investigator as Grade 1, 2, 3, or 4 according to the modified Gilead Sciences, Inc (GSI) Grading Scale. The most severe graded abnormality from all tests was counted for each participant. Data is only reported for those Grades reported in 1 or more participants.

Secondary outcomes

  1. Pharmacodynamic (PD) Parameter: Fibroblast Growth Factor 19 (FGF19) AUC2-12 Ratio

    Time frame: Day -1: -0.5, 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 6, 8, 10, 12, and 16 hours post-dose; Days 1, and 20: -0.5, 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 5, 6, 8, 10, 12, 16, 24, 48, 72, and 96 hours post-dose

    AUC2-12 is defined as the AUC from time 2 to 12 hours. The ratios calculated were normalized to Day -1. Participants received a single placebo tablet at Day -1 for Baseline. The ratio reported for Day 1 is the AUC2-12 Day 1 /AUC2-12 Day-1. The ratio reported for Day 20 is the AUC2-12 Day 20 /AUC2-12 Day-1.

  2. PD Parameter: FGF19 Cmax Ratio

    Time frame: Day -1: -0.5, 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 6, 8, 10, 12, and 16 hours post-dose; Days 1, and 20: -0.5, 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 5, 6, 8, 10, 12, 16, 24, 48, 72, and 96 hours post-dose

    Cmax is defined as the maximum observed concentration of FGF19 in plasma. The ratios calculated were normalized to Day -1. Participants received a single placebo tablet at Day -1 for Baseline. The ratio reported for Day 1 is the Cmax Day 1 /Cmax Day-1. The ratio reported for Day 20 is the Cmax Day 20 /Cmax Day-1.

  3. PD Parameter: 7alpha-hydroxy-4-cholesten-3-one (C4) AUC2-12 Ratio

    Time frame: Day -1: -0.5, 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 6, 8, 10, 12, and 16 hours post-dose; Days 1, and 20: -0.5, 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 5, 6, 8, 10, 12, 16, 24, 48, 72, and 96 hours post-dose

    AUC2-12 is defined as the AUC from time 2 to 12 hours. The ratios calculated were normalized to Day -1. Participants received a single placebo tablet at Day -1 for Baseline. The ratio reported for Day 1 is the AUC2-12 Day 1 /AUC2-12 Day-1. The ratio reported for Day 20 is the AUC2-12 Day 20 /AUC2-12 Day-1.

  4. PD Parameter: C4 Cmin Ratio

    Time frame: Day -1: -0.5, 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 6, 8, 10, 12, and 16 hours post-dose; Days 1, and 20: -0.5, 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 5, 6, 8, 10, 12, 16, 24, 48, 72, and 96 hours post-dose

    Cmin is defined as the minimum observed concentration of C4 in plasma. The ratios calculated were normalized to Day -1. Participants received a single placebo tablet at Day -1 for Baseline. The ratio reported for Day 1 is the Cmin Day 1 /Cmin Day-1. The ratio reported for Day 20 is the Cmin Day 20 /Cmin Day-1.

Sponsors and collaborators

Lead sponsor

Gilead Sciences

Industry

Registry information

Official study title

A Phase 1 Study in Healthy Volunteers to Evaluate the Safety, Tolerability, Pharmacokinetics and Pharmacodynamics of GS-9674, and the Effect of Food on GS-9674 Pharmacokinetics and Pharmacodynamics

Important dates

Study start
2016
Primary completion
2016
Study completion
2016
First posted
Jan 13, 2016
Registry last updated
Oct 12, 2020

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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