A Study Evaluating GS-9620 in Treatment Naive Subjects With Chronic Hepatitis C

This study has been completed.
Sponsor:
Information provided by (Responsible Party):
Gilead Sciences
ClinicalTrials.gov Identifier:
NCT01591668
First received: March 23, 2012
Last updated: August 12, 2013
Last verified: August 2013
  Purpose

Dose cohorts may be dosed with one of up to 4 possible total weekly doses (0.3 mg, 1 mg, 2 mg, 4 mg). Dose escalation or repetition will be governed by pre-specified safety and activity rules. Subjects will be confined on either days 1-3 and/or days 8-10. Follow-up visits are also required periodically through day 43. Study procedures involve taking blood samples for pharmacokinetic, pharmacodynamic, virologic, and safety assessments.


Condition Intervention Phase
Hepatitis C
Drug: Single Ascending Dose Cohorts GS-9620
Drug: Multiple Ascending Dose Cohorts GS-9620
Phase 1

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double Blind (Subject, Caregiver, Investigator)
Primary Purpose: Treatment
Official Title: A Double-Blind, Randomized, Placebo-Controlled, Single and Multiple-Dose Ranging Study Evaluating the Safety, Tolerability, Pharmacokinetics, Pharmacodynamics, and Antiviral Activity of GS-9620 in Treatment Naive Subjects With Chronic Hepatitis C Virus Infection

Resource links provided by NLM:


Further study details as provided by Gilead Sciences:

Primary Outcome Measures:
  • Incidence of adverse events in single and multiple doses of GS-9620 [ Time Frame: Periodically Day 1 to 6 months ] [ Designated as safety issue: Yes ]
    Assessments include adverse events, laboratory abnormalities, 12-lead ECG abnormalities and interval measurements, and vital sign measurements


Secondary Outcome Measures:
  • Assessment of plasma drug concentrations of GS-9620 using non-compartmental methods [ Time Frame: Day 1 and Day 8 ] [ Designated as safety issue: No ]

    Single ascending dose (SAD) cohorts: serial blood samples will be collected on Day 1 at 0 (pre-dose), 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 6, 8, 10, 12, 16, 24, 48, and 96 hours post-dose.

    Multiple ascending dose (MAD) cohorts: serial blood samples will be collected on Day 8 at 0 (pre-dose), 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 6, 8, 10, 12, 16, and 24 hours post-dose.


  • Measurement of pharmacodynamic markers (cytokines and interferon-stimulated genes [ISGs]) [ Time Frame: Days 1, 2, 3, 5, 8 ] [ Designated as safety issue: No ]

    SAD cohorts: Whole blood and serum for pharmacodynamic (PD) assessments (RNA and cytokine analysis) will be drawn on Day 1: Pre-dose and 8-hour Post-dose, Day 2, Day 3, Day 5, Day 8

    MAD cohorts: Whole blood and serum for PD assessments (RNA and cytokine analysis) will be drawn on Day 1: Pre-dose and 8-hours Post-dose, Day 2, Day 3, Day 5, Day 8: Pre-dose and 8 hours Post-dose, Day 9, Day 10, Day 12, and Day 15


  • Reduction of hepatitis C (HCV) RNA viral load from baseline [ Time Frame: Screening, Baseline, Day 8 or 15 ] [ Designated as safety issue: No ]

    SAD cohorts: HCV viral load will be drawn at Day 1: Pre-dose, Day 2, 3, 5, 8 and both Follow-up Visits.

    MAD cohorts: HCV viral load will be drawn at Day 1: Pre-dose, Day 2, 3, 5, Day 8: Pre-dose, 9, 10, 15, and both Follow-Up Visits.



Enrollment: 51
Study Start Date: March 2012
Study Completion Date: December 2012
Primary Completion Date: December 2012 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: 0.3mg GS-9620 Drug: Single Ascending Dose Cohorts GS-9620
This study will enroll cohorts of 6 eligible, unique subjects per cohort, randomized to either active drug or placebo (5:1) within each cohort. Dose cohorts may be dosed with one of up to 4 possible total weekly doses (0.3 mg, 1 mg, 2 mg, 4 mg). Subjects in Single Ascending Dose (SAD) Cohorts will receive a single dose of GS-9620.
Experimental: 1mg GS-9620 Drug: Single Ascending Dose Cohorts GS-9620
This study will enroll cohorts of 6 eligible, unique subjects per cohort, randomized to either active drug or placebo (5:1) within each cohort. Dose cohorts may be dosed with one of up to 4 possible total weekly doses (0.3 mg, 1 mg, 2 mg, 4 mg). Subjects in Single Ascending Dose (SAD) Cohorts will receive a single dose of GS-9620.
Experimental: 2mg GS-9620 Drug: Single Ascending Dose Cohorts GS-9620
This study will enroll cohorts of 6 eligible, unique subjects per cohort, randomized to either active drug or placebo (5:1) within each cohort. Dose cohorts may be dosed with one of up to 4 possible total weekly doses (0.3 mg, 1 mg, 2 mg, 4 mg). Subjects in Single Ascending Dose (SAD) Cohorts will receive a single dose of GS-9620.
Experimental: 4mg GS-9620 Drug: Single Ascending Dose Cohorts GS-9620
This study will enroll cohorts of 6 eligible, unique subjects per cohort, randomized to either active drug or placebo (5:1) within each cohort. Dose cohorts may be dosed with one of up to 4 possible total weekly doses (0.3 mg, 1 mg, 2 mg, 4 mg). Subjects in Single Ascending Dose (SAD) Cohorts will receive a single dose of GS-9620.
Experimental: 0.3mg GS-9620 QW x 2 doses Drug: Multiple Ascending Dose Cohorts GS-9620
This study will enroll cohorts of 6 eligible, unique subjects per cohort, randomized to either active drug or placebo (5:1) within each cohort. Subjects in Multiple Ascending Dose (MAD) Cohorts will receive GS-9620 once weekly for two weeks (QW x 2 doses).
Experimental: 1mg GS-9620 QW x 2 doses Drug: Multiple Ascending Dose Cohorts GS-9620
This study will enroll cohorts of 6 eligible, unique subjects per cohort, randomized to either active drug or placebo (5:1) within each cohort. Subjects in Multiple Ascending Dose (MAD) Cohorts will receive GS-9620 once weekly for two weeks (QW x 2 doses).
Experimental: 2mg GS-9620 QW x 2 doses Drug: Multiple Ascending Dose Cohorts GS-9620
This study will enroll cohorts of 6 eligible, unique subjects per cohort, randomized to either active drug or placebo (5:1) within each cohort. Subjects in Multiple Ascending Dose (MAD) Cohorts will receive GS-9620 once weekly for two weeks (QW x 2 doses).
Experimental: 4mg GS-9620 QW x 2 doses Drug: Multiple Ascending Dose Cohorts GS-9620
This study will enroll cohorts of 6 eligible, unique subjects per cohort, randomized to either active drug or placebo (5:1) within each cohort. Subjects in Multiple Ascending Dose (MAD) Cohorts will receive GS-9620 once weekly for two weeks (QW x 2 doses).

  Eligibility

Ages Eligible for Study:   18 Years to 65 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Males and Females 18-65 years old
  • Chronic HCV infection for at least 6 months, treatment naive
  • HCV Viral load > 100,000 IU/mL at Screening
  • Monoinfection with HCV 1 genotype
  • Hepatitis B surface antigen negative
  • Screening ECG without clinically significant abnormalities
  • BMI 18-33 kg/m^2
  • Creatinine clearing > 70 mL/min
  • Negative pregnancy test at screening

Exclusion Criteria:

  • Pregnant or lactating subjects
  • Co-infection with hepatitis B virus (HBV) or HIV
  • History of Gilberts disease
  • Particular abnormal laboratory parameters
  • Diagnosis of autoimmune disease, poorly controlled diabetes, significant psychiatric illness, severe chronic obstructive pulmonary disease (COPD), malignancy, hemoglobinopathy, retinal disease, and those who are immunosuppressed
  • Evidence of hepatocellular carcinoma
  • On-going alcohol abuse
  • Positive uring drug screen
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT01591668

Locations
United States, Arkansas
Woodland International Research Group
Little Rock, Arkansas, United States, 72211
United States, Florida
Avail Clinical Research, LLC
DeLand, Florida, United States, 32720
Orlando Clinical Research Center
Orlando, Florida, United States, 32809
United States, Missouri
Kansas City Gastroenterology and Hepatology
Kansas City, Missouri, United States, 64131
United States, New Jersey
Comprehensive Clinical Research
Berlin, New Jersey, United States, 08009
CRI Worldwide, LLC
Willingboro, New Jersey, United States, 08046
United States, New York
CliniLabs
New York, New York, United States, 10019
United States, Pennsylvania
CRI Worldwide, LLC
Philadelphia, Pennsylvania, United States, 19139
United States, Texas
Alamo Medical Research
San Antonio, Texas, United States, 78215
United States, Utah
Lifetree Clinical Research
Salt Lake City, Utah, United States, 84106
Puerto Rico
Fundacion De Investigacion De Diego
Santurce, Puerto Rico, 00909
Sponsors and Collaborators
Gilead Sciences
  More Information

No publications provided

Responsible Party: Gilead Sciences
ClinicalTrials.gov Identifier: NCT01591668     History of Changes
Other Study ID Numbers: GS-US-243-0102
Study First Received: March 23, 2012
Last Updated: August 12, 2013
Health Authority: United States: Food and Drug Administration

Keywords provided by Gilead Sciences:
Hepatitis
Hepatitis C
Chronic HCV
HCV
Treatment Naive
Gilead
GS-9620

Additional relevant MeSH terms:
Hepatitis
Hepatitis A
Hepatitis C
Hepatitis, Chronic
Hepatitis C, Chronic
Liver Diseases
Digestive System Diseases
Hepatitis, Viral, Human
Virus Diseases
Enterovirus Infections
Picornaviridae Infections
RNA Virus Infections
Flaviviridae Infections

ClinicalTrials.gov processed this record on October 01, 2014