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Efficacy and Safety of Sofosbuvir/Velpatasvir ± Ribavirin for 12 Weeks in Adults With Chronic HCV Infection and Decompensated Cirrhosis

Phase 3
Completed
Conditions
Hepatitis C Virus Infection
Interventions
Registration Number
NCT02996682
Lead Sponsor
Gilead Sciences
Brief Summary

The primary objectives of this study are to evaluate the antiviral efficacy, safety, and tolerability of sofosbuvir/velpatasvir (SOF/VEL) fixed-dose combination (FDC) with or without ribavirin (RBV) for 12 weeks in adults with chronic hepatitis C virus (HCV) infection and decompensated cirrhosis.

Detailed Description

Not available

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
102
Inclusion Criteria
  • Chronic HCV-infected males and non-pregnant/non-lactating females
  • Treatment naive or treatment experienced individuals
  • Child-Pugh-Turcotte Score 7-12 at screening

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

Exclusion Criteria

Not provided

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
SOF/VEL + RBVRBVSOF/VEL + RBV for 12 weeks
SOF/VEL + RBVSOF/VELSOF/VEL + RBV for 12 weeks
SOF/VELSOF/VELSOF/VEL for 12 weeks
Primary Outcome Measures
NameTimeMethod
Percentage of Participants With Sustained Virologic Response (SVR) 12 Weeks After Discontinuation of Therapy (SVR12)Posttreatment Week 12

SVR12 was defined as HCV RNA \< the lower limit of quantitation (LLOQ; ie, 15 IU/mL) at 12 weeks after stopping study treatment.

Percentage of Participants Who Discontinued Treatment (SOF/VEL or RBV) Early Due to an Adverse EventUp to 12 weeks
Secondary Outcome Measures
NameTimeMethod
Change From Baseline in HCV RNABaseline and up to 12 weeks
Percentage of Participants With a Decrease, No Change, or Increase in Model for End Stage Liver Disease (MELD) ScoreBaseline to Posttreatment Week 24

MELD score is a chronic liver disease severity scoring system. Scores can range from 6 to 40, with higher scores indicating greater disease severity. "No change" was assigned for differences (posttreatment visits minus baseline score) of -1, 0 or 1; "Decrease" was assigned for differences that were less than or equal to -2; and "Increase" was assigned for values that were greater than or equal to 2.

Percentage of Participants With SVR at 4 Weeks After Discontinuation of Therapy (SVR4)Posttreatment Week 4

SVR4 was defined as HCV RNA \< LLOQ at 4 weeks after stopping study treatment.

Percentage of Participants Who Had HCV RNA < LLOQ by Visit While on TreatmentUp to 12 weeks
Percentage of Participants With Virologic FailureUp to Posttreatment Week 24

Virologic failure was defined as:

Breakthrough (confirmed HCV RNA ≥ LLOQ after having previously had HCV RNA \< LLOQ while on treatment), or Rebound (confirmed \> 1 log10 IU/mL increase in HCV RNA from nadir while on treatment), or Non-response (HCV RNA persistently ≥ LLOQ through 8 weeks of treatment), or Relapse (HCV RNA ≥ LLOQ during the post-treatment period having achieved HCV RNA \< LLOQ at end of treatment, confirmed with 2 consecutive values or last available post-treatment measurement).

Percentage of Participants With SVR at 24 Weeks After Discontinuation of Therapy (SVR24)Posttreatment Week 24

SVR24 was defined as HCV RNA \< LLOQ at 24 weeks after stopping study treatment.

Percentage of Participants With Improved and Worsened Child-Pugh-Turcotte (CPT) ClassBaseline to Posttreatment Week 24

CPT is a chronic liver disease classification system. Classes include CPT Class A, CPT Class B, and CPT Class C, in order of greater disease severity. Participants with improved CPT class was defined as having Class C at Baseline and Class B or A at Posttreatment Week 24 or Class B at Baseline and Class A at Posttreatment Week 24. Participants with worsened CPT class was defined as having Class A at Baseline and Class B or C at Posttreatment Week 24 or Class B at Baseline and Class C at Posttreatment Week 24. CPT scores were calculated using prothrombin activation percentage for the coagulation parameter per Japan's standard.

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