Hepatitis C Virus Infection
Conditions
Keywords
Sofosbuvir, Velpatasvir, SOF/VEL, GS-5816, Hepatitis C, HCV, Cirrhosis, CPT-B
Brief summary
The primary objectives of this study are to evaluate the efficacy, safety, and tolerability of sofosbuvir (SOF)/velpatasvir (VEL) fixed dose combination (FDC) with and without ribavirin (RBV) for 12 weeks and SOF/VEL FDC for 24 weeks in adults with chronic hepatitis C virus (HCV) infection and Child-Pugh-Turcotte (CPT) class B cirrhosis.
Interventions
400/100 mg tablets administered orally once daily
Ribavirin (RBV) tablets administered orally in a divided daily dose according to package insert weight-based dosing recommendations (\< 75 kg = 1000 mg and ≥ 75 kg = 1200 mg)
Sponsors
Study design
Eligibility
Inclusion criteria
* Willing and able to provide written informed consent * HCV RNA \> 10\^4 IU/mL at screening * Chronic HCV infection (≥ 6 months) * Confirmed CPT class B (7-9) at screening
Exclusion criteria
* Current or prior history of solid organ transplantation, significant pulmonary disease, significant cardiac disease, or porphyria * Inability to exclude hepatocellular carcinoma (HCC) by imaging within 6 months of baseline/Day 1 * Infection with hepatitis B virus (HBV) or human immunodeficiency virus (HIV) * Screening ECG with clinically significant abnormalities * Prior exposure to SOF or any other nucleotide analogue HCV nonstructural protein 5B (NS5B) inhibitor or any HCV NS5A inhibitor * Laboratory results outside of acceptable ranges at screening
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| 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) 12 weeks following the last dose of study drug. |
| Percentage of Participants Who Permanently Discontinued Any Study Drug Due to an Adverse Event | Up to 24 weeks plus 30 days | — |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Percentage of Participants With Sustained Virologic Response 4 and 24 Weeks After Discontinuation of Therapy (SVR4 and SVR24) | Posttreatment Weeks 4 and 24 | SVR4 and SVR24 were defined as HCV RNA \< LLOQ at 4 and 24 weeks following the last dose of study drug, respectively. |
| Percentage of Participants With HCV RNA < LLOQ at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | — |
| Change From Baseline in HCV RNA at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Baseline; Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | — |
| Percentage of Participants With Virologic Failure | Up to Posttreatment Week 24 | Virologic failure was defined as * On-treatment virologic failure * HCV RNA ≥ LLOQ after having previously had HCV RNA \< LLOQ, while on treatment, * \> 1 log10 IU/mL increase in HCV RNA from nadir while on treatment, * HCV RNA persistently ≥ LLOQ through 8 weeks of treatment (ie nonresponse) * Relapse * HCV RNA ≥ LLOQ during the posttreatment period having achieved HCV RNA \< LLOQ at end of treatment, confirmed with 2 consecutive values or last available posttreatment measurement |
| Percentage of Participants With a Decrease, No Change, or Increase Between Baseline and Posttreatment Week 24 in MELD Score | Baseline to Posttreatment Week 24 | Model for End-Stage Liver Disease (MELD) scores are used to assess prognosis and suitability for liver transplantation. Scores can range from 6 to 40; higher scores/increased scores indicate greater severity of disease. |
| Percentage of Participants With a Decrease, No Change, or Increase Between Baseline and Posttreatment Week 24 in Child-Pugh-Turcotte (CPT) Score | Baseline to Posttreatment Week 24 | CPT scores grade the severity of cirrhosis and are used to determine the need for liver transplantation. Scores can range from 5 to 15; higher scores/increased scores indicate greater severity of disease. |
Countries
Puerto Rico, United States
Participant flow
Recruitment details
Participants were enrolled at a total of 47 study sites in the United States. The first participant was screened on 31 July 2014. The last study visit occurred on 25 November 2015.
Pre-assignment details
438 participants were screened.
Participants by arm
| Arm | Count |
|---|---|
| SOF/VEL 12 Weeks (Group 1) SOF/VEL (Sofosbuvir/velpatasvir) (400/100 mg) fixed dose combination (FDC) tablet once daily for 12 weeks | 90 |
| SOF/VEL+RBV 12 Weeks (Group 2) SOF/VEL (400/100 mg) FDC tablet + Ribavirin (RBV) tablets (1000 or 1200 mg/day divided twice daily) administered orally once daily for 12 weeks | 87 |
| SOF/VEL 24 Weeks ((Group 3) SOF/VEL (400/100 mg) FDC tablet once daily for 24 weeks | 90 |
| Total | 267 |
Withdrawals & dropouts
| Period | Reason | FG000 | FG001 | FG002 |
|---|---|---|---|---|
| Overall Study | Adverse Event | 1 | 1 | 0 |
| Overall Study | Death | 3 | 3 | 3 |
| Overall Study | Lack of Efficacy | 7 | 1 | 6 |
| Overall Study | Lost to Follow-up | 2 | 3 | 2 |
| Overall Study | Randomized but never treated | 0 | 1 | 0 |
| Overall Study | Withdrew Consent | 2 | 0 | 2 |
Baseline characteristics
| Characteristic | SOF/VEL 24 Weeks ((Group 3) | SOF/VEL 12 Weeks (Group 1) | SOF/VEL+RBV 12 Weeks (Group 2) | Total |
|---|---|---|---|---|
| Age, Continuous | 58 years STANDARD_DEVIATION 5.8 | 58 years STANDARD_DEVIATION 6.3 | 58 years STANDARD_DEVIATION 6.9 | 58 years STANDARD_DEVIATION 6.3 |
| Ethnicity (NIH/OMB) Hispanic or Latino | 13 Participants | 13 Participants | 13 Participants | 39 Participants |
| Ethnicity (NIH/OMB) Not Hispanic or Latino | 77 Participants | 77 Participants | 74 Participants | 228 Participants |
| Ethnicity (NIH/OMB) Unknown or Not Reported | 0 Participants | 0 Participants | 0 Participants | 0 Participants |
| HCV Genotype Genotype 1 | 71 participants | 68 participants | 68 participants | 207 participants |
| HCV Genotype Genotype 2 | 4 participants | 4 participants | 4 participants | 12 participants |
| HCV Genotype Genotype 3 | 12 participants | 14 participants | 13 participants | 39 participants |
| HCV Genotype Genotype 4 | 2 participants | 4 participants | 2 participants | 8 participants |
| HCV Genotype Genotype 6 | 1 participants | 0 participants | 0 participants | 1 participants |
| HCV RNA | 5.9 log 10 IU/mL STANDARD_DEVIATION 0.63 | 6.0 log 10 IU/mL STANDARD_DEVIATION 0.54 | 5.8 log 10 IU/mL STANDARD_DEVIATION 0.61 | 5.9 log 10 IU/mL STANDARD_DEVIATION 0.6 |
| HCV RNA Category < 800,000 IU/mL | 45 participants | 31 participants | 42 participants | 118 participants |
| HCV RNA Category ≥ 800,000 IU/mL | 45 participants | 59 participants | 45 participants | 149 participants |
| IL28B CC | 20 participants | 20 participants | 22 participants | 62 participants |
| IL28B CT | 49 participants | 51 participants | 46 participants | 146 participants |
| IL28B Missing | 2 participants | 0 participants | 0 participants | 2 participants |
| IL28B TT | 19 participants | 19 participants | 19 participants | 57 participants |
| Race/Ethnicity, Customized American Indian or Alaska Native | 0 participants | 0 participants | 1 participants | 1 participants |
| Race/Ethnicity, Customized Asian | 2 participants | 3 participants | 0 participants | 5 participants |
| Race/Ethnicity, Customized Black or African American | 6 participants | 6 participants | 5 participants | 17 participants |
| Race/Ethnicity, Customized Native Hawaiian or Pacific Islander | 0 participants | 0 participants | 1 participants | 1 participants |
| Race/Ethnicity, Customized Not Disclosed | 1 participants | 0 participants | 0 participants | 1 participants |
| Race/Ethnicity, Customized Other | 0 participants | 2 participants | 1 participants | 3 participants |
| Race/Ethnicity, Customized White | 81 participants | 79 participants | 79 participants | 239 participants |
| Sex: Female, Male Female | 27 Participants | 33 Participants | 21 Participants | 81 Participants |
| Sex: Female, Male Male | 63 Participants | 57 Participants | 66 Participants | 186 Participants |
Adverse events
| Event type | EG000 affected / at risk | EG001 affected / at risk | EG002 affected / at risk |
|---|---|---|---|
| deaths Total, all-cause mortality | — / — | — / — | — / — |
| other Total, other adverse events | 65 / 90 | 74 / 87 | 61 / 90 |
| serious Total, serious adverse events | 17 / 90 | 14 / 87 | 16 / 90 |
Outcome results
Percentage of Participants Who Permanently Discontinued Any Study Drug Due to an Adverse Event
Time frame: Up to 24 weeks plus 30 days
Population: Safety Analysis Set
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| SOF/VEL 12 Weeks (Group 1) | Percentage of Participants Who Permanently Discontinued Any Study Drug Due to an Adverse Event | 1.1 percentage of participants |
| SOF/VEL+RBV 12 Weeks (Group 2) | Percentage of Participants Who Permanently Discontinued Any Study Drug Due to an Adverse Event | 16.1 percentage of participants |
| SOF/VEL 24 Weeks (Group 3) | Percentage of Participants Who Permanently Discontinued Any Study Drug Due to an Adverse Event | 4.4 percentage of participants |
Percentage of Participants With Sustained Virologic Response (SVR) 12 Weeks After Discontinuation of Therapy (SVR12)
SVR12 was defined as HCV RNA \< the lower limit of quantitation (LLOQ) 12 weeks following the last dose of study drug.
Time frame: Posttreatment Week 12
Population: The Full Analysis Set (FAS): participants who were randomized into the study and received at least 1 dose of study drug.
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| SOF/VEL 12 Weeks (Group 1) | Percentage of Participants With Sustained Virologic Response (SVR) 12 Weeks After Discontinuation of Therapy (SVR12) | 83.3 percentage of participants |
| SOF/VEL+RBV 12 Weeks (Group 2) | Percentage of Participants With Sustained Virologic Response (SVR) 12 Weeks After Discontinuation of Therapy (SVR12) | 94.3 percentage of participants |
| SOF/VEL 24 Weeks (Group 3) | Percentage of Participants With Sustained Virologic Response (SVR) 12 Weeks After Discontinuation of Therapy (SVR12) | 87.8 percentage of participants |
Change From Baseline in HCV RNA at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24
Time frame: Baseline; Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24
Population: Participants in the Full Analysis Set with available data were analyzed.
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| SOF/VEL 12 Weeks (Group 1) | Change From Baseline in HCV RNA at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 1(Group 1: N=89; Group 2: N=83; Group 3: N=88) | -3.51 log10 IU/mL | Standard Deviation 0.652 |
| SOF/VEL 12 Weeks (Group 1) | Change From Baseline in HCV RNA at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 24 (Group 1: N=0; Group 2: N=0; Group 3: N =84) | NA log10 IU/mL | — |
| SOF/VEL 12 Weeks (Group 1) | Change From Baseline in HCV RNA at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 6(Group 1: N=89; Group 2: N=85; Group 3: N=88) | -4.87 log10 IU/mL | Standard Deviation 0.536 |
| SOF/VEL 12 Weeks (Group 1) | Change From Baseline in HCV RNA at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 16 (Group 1: N=0; Group 2: N=0; Group 3: N=85) | NA log10 IU/mL | — |
| SOF/VEL 12 Weeks (Group 1) | Change From Baseline in HCV RNA at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 20 (Group 1: N=0; Group 2: N=0; Group 3: N =84) | NA log10 IU/mL | — |
| SOF/VEL 12 Weeks (Group 1) | Change From Baseline in HCV RNA at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 8(Group 1: N=89; Group 2: N=83; Group 3: N=87) | -4.87 log10 IU/mL | Standard Deviation 0.536 |
| SOF/VEL 12 Weeks (Group 1) | Change From Baseline in HCV RNA at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 4(Group 1: N=88; Group 2: N=86; Group 3: N=88) | -4.78 log10 IU/mL | Standard Deviation 0.549 |
| SOF/VEL 12 Weeks (Group 1) | Change From Baseline in HCV RNA at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 2(Group 1: N=89; Group 2: N=87; Group 3: N=88) | -4.24 log10 IU/mL | Standard Deviation 0.677 |
| SOF/VEL 12 Weeks (Group 1) | Change From Baseline in HCV RNA at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 10(Group 1: N=89; Group 2: N=84; Group 3, N=87) | -4.87 log10 IU/mL | Standard Deviation 0.536 |
| SOF/VEL 12 Weeks (Group 1) | Change From Baseline in HCV RNA at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 12(Group 1: N=89; Group 2: N=82; Group 3: N=86) | -4.87 log10 IU/mL | Standard Deviation 0.536 |
| SOF/VEL+RBV 12 Weeks (Group 2) | Change From Baseline in HCV RNA at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 10(Group 1: N=89; Group 2: N=84; Group 3, N=87) | -4.67 log10 IU/mL | Standard Deviation 0.634 |
| SOF/VEL+RBV 12 Weeks (Group 2) | Change From Baseline in HCV RNA at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 12(Group 1: N=89; Group 2: N=82; Group 3: N=86) | -4.68 log10 IU/mL | Standard Deviation 0.624 |
| SOF/VEL+RBV 12 Weeks (Group 2) | Change From Baseline in HCV RNA at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 2(Group 1: N=89; Group 2: N=87; Group 3: N=88) | -4.17 log10 IU/mL | Standard Deviation 0.647 |
| SOF/VEL+RBV 12 Weeks (Group 2) | Change From Baseline in HCV RNA at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 16 (Group 1: N=0; Group 2: N=0; Group 3: N=85) | NA log10 IU/mL | — |
| SOF/VEL+RBV 12 Weeks (Group 2) | Change From Baseline in HCV RNA at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 20 (Group 1: N=0; Group 2: N=0; Group 3: N =84) | NA log10 IU/mL | — |
| SOF/VEL+RBV 12 Weeks (Group 2) | Change From Baseline in HCV RNA at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 24 (Group 1: N=0; Group 2: N=0; Group 3: N =84) | NA log10 IU/mL | — |
| SOF/VEL+RBV 12 Weeks (Group 2) | Change From Baseline in HCV RNA at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 4(Group 1: N=88; Group 2: N=86; Group 3: N=88) | -4.58 log10 IU/mL | Standard Deviation 0.568 |
| SOF/VEL+RBV 12 Weeks (Group 2) | Change From Baseline in HCV RNA at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 1(Group 1: N=89; Group 2: N=83; Group 3: N=88) | -3.63 log10 IU/mL | Standard Deviation 0.691 |
| SOF/VEL+RBV 12 Weeks (Group 2) | Change From Baseline in HCV RNA at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 6(Group 1: N=89; Group 2: N=85; Group 3: N=88) | -4.68 log10 IU/mL | Standard Deviation 0.607 |
| SOF/VEL+RBV 12 Weeks (Group 2) | Change From Baseline in HCV RNA at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 8(Group 1: N=89; Group 2: N=83; Group 3: N=87) | -4.68 log10 IU/mL | Standard Deviation 0.622 |
| SOF/VEL 24 Weeks (Group 3) | Change From Baseline in HCV RNA at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 24 (Group 1: N=0; Group 2: N=0; Group 3: N =84) | -4.77 log10 IU/mL | Standard Deviation 0.613 |
| SOF/VEL 24 Weeks (Group 3) | Change From Baseline in HCV RNA at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 16 (Group 1: N=0; Group 2: N=0; Group 3: N=85) | -4.76 log10 IU/mL | Standard Deviation 0.617 |
| SOF/VEL 24 Weeks (Group 3) | Change From Baseline in HCV RNA at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 1(Group 1: N=89; Group 2: N=83; Group 3: N=88) | -3.72 log10 IU/mL | Standard Deviation 0.68 |
| SOF/VEL 24 Weeks (Group 3) | Change From Baseline in HCV RNA at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 2(Group 1: N=89; Group 2: N=87; Group 3: N=88) | -4.38 log10 IU/mL | Standard Deviation 0.669 |
| SOF/VEL 24 Weeks (Group 3) | Change From Baseline in HCV RNA at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 4(Group 1: N=88; Group 2: N=86; Group 3: N=88) | -4.70 log10 IU/mL | Standard Deviation 0.613 |
| SOF/VEL 24 Weeks (Group 3) | Change From Baseline in HCV RNA at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 6(Group 1: N=89; Group 2: N=85; Group 3: N=88) | -4.74 log10 IU/mL | Standard Deviation 0.63 |
| SOF/VEL 24 Weeks (Group 3) | Change From Baseline in HCV RNA at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 8(Group 1: N=89; Group 2: N=83; Group 3: N=87) | -4.76 log10 IU/mL | Standard Deviation 0.613 |
| SOF/VEL 24 Weeks (Group 3) | Change From Baseline in HCV RNA at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 12(Group 1: N=89; Group 2: N=82; Group 3: N=86) | -4.75 log10 IU/mL | Standard Deviation 0.618 |
| SOF/VEL 24 Weeks (Group 3) | Change From Baseline in HCV RNA at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 20 (Group 1: N=0; Group 2: N=0; Group 3: N =84) | -4.77 log10 IU/mL | Standard Deviation 0.613 |
| SOF/VEL 24 Weeks (Group 3) | Change From Baseline in HCV RNA at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 10(Group 1: N=89; Group 2: N=84; Group 3, N=87) | -4.76 log10 IU/mL | Standard Deviation 0.613 |
Percentage of Participants With a Decrease, No Change, or Increase Between Baseline and Posttreatment Week 24 in Child-Pugh-Turcotte (CPT) Score
CPT scores grade the severity of cirrhosis and are used to determine the need for liver transplantation. Scores can range from 5 to 15; higher scores/increased scores indicate greater severity of disease.
Time frame: Baseline to Posttreatment Week 24
Population: Participants in the Full Analysis Set with available data were analyzed.
| Arm | Measure | Group | Value (NUMBER) |
|---|---|---|---|
| SOF/VEL 12 Weeks (Group 1) | Percentage of Participants With a Decrease, No Change, or Increase Between Baseline and Posttreatment Week 24 in Child-Pugh-Turcotte (CPT) Score | No Change | 43.5 percentage of participants |
| SOF/VEL 12 Weeks (Group 1) | Percentage of Participants With a Decrease, No Change, or Increase Between Baseline and Posttreatment Week 24 in Child-Pugh-Turcotte (CPT) Score | Decrease (Improvement) | 44.9 percentage of participants |
| SOF/VEL 12 Weeks (Group 1) | Percentage of Participants With a Decrease, No Change, or Increase Between Baseline and Posttreatment Week 24 in Child-Pugh-Turcotte (CPT) Score | Increase (Worsening) | 11.6 percentage of participants |
| SOF/VEL+RBV 12 Weeks (Group 2) | Percentage of Participants With a Decrease, No Change, or Increase Between Baseline and Posttreatment Week 24 in Child-Pugh-Turcotte (CPT) Score | No Change | 37.3 percentage of participants |
| SOF/VEL+RBV 12 Weeks (Group 2) | Percentage of Participants With a Decrease, No Change, or Increase Between Baseline and Posttreatment Week 24 in Child-Pugh-Turcotte (CPT) Score | Decrease (Improvement) | 53.3 percentage of participants |
| SOF/VEL+RBV 12 Weeks (Group 2) | Percentage of Participants With a Decrease, No Change, or Increase Between Baseline and Posttreatment Week 24 in Child-Pugh-Turcotte (CPT) Score | Increase (Worsening) | 9.3 percentage of participants |
| SOF/VEL 24 Weeks (Group 3) | Percentage of Participants With a Decrease, No Change, or Increase Between Baseline and Posttreatment Week 24 in Child-Pugh-Turcotte (CPT) Score | Decrease (Improvement) | 63.8 percentage of participants |
| SOF/VEL 24 Weeks (Group 3) | Percentage of Participants With a Decrease, No Change, or Increase Between Baseline and Posttreatment Week 24 in Child-Pugh-Turcotte (CPT) Score | Increase (Worsening) | 8.7 percentage of participants |
| SOF/VEL 24 Weeks (Group 3) | Percentage of Participants With a Decrease, No Change, or Increase Between Baseline and Posttreatment Week 24 in Child-Pugh-Turcotte (CPT) Score | No Change | 27.5 percentage of participants |
Percentage of Participants With a Decrease, No Change, or Increase Between Baseline and Posttreatment Week 24 in MELD Score
Model for End-Stage Liver Disease (MELD) scores are used to assess prognosis and suitability for liver transplantation. Scores can range from 6 to 40; higher scores/increased scores indicate greater severity of disease.
Time frame: Baseline to Posttreatment Week 24
Population: Participants in the Full Analysis Set with available data were analyzed.
| Arm | Measure | Group | Value (NUMBER) |
|---|---|---|---|
| SOF/VEL 12 Weeks (Group 1) | Percentage of Participants With a Decrease, No Change, or Increase Between Baseline and Posttreatment Week 24 in MELD Score | No Change | 20.3 percentage of participants |
| SOF/VEL 12 Weeks (Group 1) | Percentage of Participants With a Decrease, No Change, or Increase Between Baseline and Posttreatment Week 24 in MELD Score | Decrease (Improvement) | 55.1 percentage of participants |
| SOF/VEL 12 Weeks (Group 1) | Percentage of Participants With a Decrease, No Change, or Increase Between Baseline and Posttreatment Week 24 in MELD Score | Increase (Worsening) | 24.6 percentage of participants |
| SOF/VEL+RBV 12 Weeks (Group 2) | Percentage of Participants With a Decrease, No Change, or Increase Between Baseline and Posttreatment Week 24 in MELD Score | No Change | 25.3 percentage of participants |
| SOF/VEL+RBV 12 Weeks (Group 2) | Percentage of Participants With a Decrease, No Change, or Increase Between Baseline and Posttreatment Week 24 in MELD Score | Decrease (Improvement) | 49.3 percentage of participants |
| SOF/VEL+RBV 12 Weeks (Group 2) | Percentage of Participants With a Decrease, No Change, or Increase Between Baseline and Posttreatment Week 24 in MELD Score | Increase (Worsening) | 25.3 percentage of participants |
| SOF/VEL 24 Weeks (Group 3) | Percentage of Participants With a Decrease, No Change, or Increase Between Baseline and Posttreatment Week 24 in MELD Score | Decrease (Improvement) | 50.7 percentage of participants |
| SOF/VEL 24 Weeks (Group 3) | Percentage of Participants With a Decrease, No Change, or Increase Between Baseline and Posttreatment Week 24 in MELD Score | Increase (Worsening) | 27.5 percentage of participants |
| SOF/VEL 24 Weeks (Group 3) | Percentage of Participants With a Decrease, No Change, or Increase Between Baseline and Posttreatment Week 24 in MELD Score | No Change | 21.7 percentage of participants |
Percentage of Participants With HCV RNA < LLOQ at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24
Time frame: Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24
Population: Participants in the Full Analysis Set with available data were analyzed.
| Arm | Measure | Group | Value (NUMBER) |
|---|---|---|---|
| SOF/VEL 12 Weeks (Group 1) | Percentage of Participants With HCV RNA < LLOQ at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 1(Group 1: N=90; Group 2: N=87; Group 3: N=90) | 2.2 percentage of participants |
| SOF/VEL 12 Weeks (Group 1) | Percentage of Participants With HCV RNA < LLOQ at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 2 (Group 1: N=90; Group 2: N=87;Group 3: N=89) | 34.4 percentage of participants |
| SOF/VEL 12 Weeks (Group 1) | Percentage of Participants With HCV RNA < LLOQ at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 4 (Group 1: N=90; Group 2: N=87; Group 3: N=89) | 81.1 percentage of participants |
| SOF/VEL 12 Weeks (Group 1) | Percentage of Participants With HCV RNA < LLOQ at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 6(Group 1: N=89; Group 2: N=85; Group 3: N=88) | 98.9 percentage of participants |
| SOF/VEL 12 Weeks (Group 1) | Percentage of Participants With HCV RNA < LLOQ at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 8(Group 1: N=89; Group 2: N=84; Group 3: N=87) | 98.9 percentage of participants |
| SOF/VEL 12 Weeks (Group 1) | Percentage of Participants With HCV RNA < LLOQ at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 10(Group 1: N=89; Group 2: N=84; Group 3: N=87) | 100.0 percentage of participants |
| SOF/VEL 12 Weeks (Group 1) | Percentage of Participants With HCV RNA < LLOQ at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 12(Group 1: N=89; Group 2: N=83; Group 3: N=87) | 100.0 percentage of participants |
| SOF/VEL 12 Weeks (Group 1) | Percentage of Participants With HCV RNA < LLOQ at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 16(Group 1: N=0; Group 2: N=0; Group 3: N=86) | NA percentage of participants |
| SOF/VEL 12 Weeks (Group 1) | Percentage of Participants With HCV RNA < LLOQ at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 20(Group 1: N=0; Group 2: N=0;Group 3: N=84) | NA percentage of participants |
| SOF/VEL 12 Weeks (Group 1) | Percentage of Participants With HCV RNA < LLOQ at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 24(Group 1: N=0; Group 2: N=0; Group 3: N=84) | NA percentage of participants |
| SOF/VEL+RBV 12 Weeks (Group 2) | Percentage of Participants With HCV RNA < LLOQ at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 20(Group 1: N=0; Group 2: N=0;Group 3: N=84) | NA percentage of participants |
| SOF/VEL+RBV 12 Weeks (Group 2) | Percentage of Participants With HCV RNA < LLOQ at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 1(Group 1: N=90; Group 2: N=87; Group 3: N=90) | 14.9 percentage of participants |
| SOF/VEL+RBV 12 Weeks (Group 2) | Percentage of Participants With HCV RNA < LLOQ at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 10(Group 1: N=89; Group 2: N=84; Group 3: N=87) | 98.8 percentage of participants |
| SOF/VEL+RBV 12 Weeks (Group 2) | Percentage of Participants With HCV RNA < LLOQ at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 8(Group 1: N=89; Group 2: N=84; Group 3: N=87) | 98.8 percentage of participants |
| SOF/VEL+RBV 12 Weeks (Group 2) | Percentage of Participants With HCV RNA < LLOQ at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 2 (Group 1: N=90; Group 2: N=87;Group 3: N=89) | 49.4 percentage of participants |
| SOF/VEL+RBV 12 Weeks (Group 2) | Percentage of Participants With HCV RNA < LLOQ at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 24(Group 1: N=0; Group 2: N=0; Group 3: N=84) | NA percentage of participants |
| SOF/VEL+RBV 12 Weeks (Group 2) | Percentage of Participants With HCV RNA < LLOQ at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 16(Group 1: N=0; Group 2: N=0; Group 3: N=86) | NA percentage of participants |
| SOF/VEL+RBV 12 Weeks (Group 2) | Percentage of Participants With HCV RNA < LLOQ at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 4 (Group 1: N=90; Group 2: N=87; Group 3: N=89) | 80.5 percentage of participants |
| SOF/VEL+RBV 12 Weeks (Group 2) | Percentage of Participants With HCV RNA < LLOQ at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 12(Group 1: N=89; Group 2: N=83; Group 3: N=87) | 98.8 percentage of participants |
| SOF/VEL+RBV 12 Weeks (Group 2) | Percentage of Participants With HCV RNA < LLOQ at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 6(Group 1: N=89; Group 2: N=85; Group 3: N=88) | 97.6 percentage of participants |
| SOF/VEL 24 Weeks (Group 3) | Percentage of Participants With HCV RNA < LLOQ at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 16(Group 1: N=0; Group 2: N=0; Group 3: N=86) | 97.7 percentage of participants |
| SOF/VEL 24 Weeks (Group 3) | Percentage of Participants With HCV RNA < LLOQ at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 6(Group 1: N=89; Group 2: N=85; Group 3: N=88) | 98.9 percentage of participants |
| SOF/VEL 24 Weeks (Group 3) | Percentage of Participants With HCV RNA < LLOQ at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 8(Group 1: N=89; Group 2: N=84; Group 3: N=87) | 100.0 percentage of participants |
| SOF/VEL 24 Weeks (Group 3) | Percentage of Participants With HCV RNA < LLOQ at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 10(Group 1: N=89; Group 2: N=84; Group 3: N=87) | 100.0 percentage of participants |
| SOF/VEL 24 Weeks (Group 3) | Percentage of Participants With HCV RNA < LLOQ at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 20(Group 1: N=0; Group 2: N=0;Group 3: N=84) | 100.0 percentage of participants |
| SOF/VEL 24 Weeks (Group 3) | Percentage of Participants With HCV RNA < LLOQ at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 12(Group 1: N=89; Group 2: N=83; Group 3: N=87) | 97.7 percentage of participants |
| SOF/VEL 24 Weeks (Group 3) | Percentage of Participants With HCV RNA < LLOQ at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 1(Group 1: N=90; Group 2: N=87; Group 3: N=90) | 11.1 percentage of participants |
| SOF/VEL 24 Weeks (Group 3) | Percentage of Participants With HCV RNA < LLOQ at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 24(Group 1: N=0; Group 2: N=0; Group 3: N=84) | 100.0 percentage of participants |
| SOF/VEL 24 Weeks (Group 3) | Percentage of Participants With HCV RNA < LLOQ at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 2 (Group 1: N=90; Group 2: N=87;Group 3: N=89) | 39.3 percentage of participants |
| SOF/VEL 24 Weeks (Group 3) | Percentage of Participants With HCV RNA < LLOQ at Weeks 1, 2, 4, 6, 8, 10, 12, 16, 20, and 24 | Wk 4 (Group 1: N=90; Group 2: N=87; Group 3: N=89) | 91.0 percentage of participants |
Percentage of Participants With Sustained Virologic Response 4 and 24 Weeks After Discontinuation of Therapy (SVR4 and SVR24)
SVR4 and SVR24 were defined as HCV RNA \< LLOQ at 4 and 24 weeks following the last dose of study drug, respectively.
Time frame: Posttreatment Weeks 4 and 24
Population: Full Analysis Set
| Arm | Measure | Group | Value (NUMBER) |
|---|---|---|---|
| SOF/VEL 12 Weeks (Group 1) | Percentage of Participants With Sustained Virologic Response 4 and 24 Weeks After Discontinuation of Therapy (SVR4 and SVR24) | SVR4 | 92.2 percentage of participants |
| SOF/VEL 12 Weeks (Group 1) | Percentage of Participants With Sustained Virologic Response 4 and 24 Weeks After Discontinuation of Therapy (SVR4 and SVR24) | SVR24 | 83.3 percentage of participants |
| SOF/VEL+RBV 12 Weeks (Group 2) | Percentage of Participants With Sustained Virologic Response 4 and 24 Weeks After Discontinuation of Therapy (SVR4 and SVR24) | SVR4 | 95.4 percentage of participants |
| SOF/VEL+RBV 12 Weeks (Group 2) | Percentage of Participants With Sustained Virologic Response 4 and 24 Weeks After Discontinuation of Therapy (SVR4 and SVR24) | SVR24 | 94.3 percentage of participants |
| SOF/VEL 24 Weeks (Group 3) | Percentage of Participants With Sustained Virologic Response 4 and 24 Weeks After Discontinuation of Therapy (SVR4 and SVR24) | SVR4 | 90.0 percentage of participants |
| SOF/VEL 24 Weeks (Group 3) | Percentage of Participants With Sustained Virologic Response 4 and 24 Weeks After Discontinuation of Therapy (SVR4 and SVR24) | SVR24 | 87.8 percentage of participants |
Percentage of Participants With Virologic Failure
Virologic failure was defined as * On-treatment virologic failure * HCV RNA ≥ LLOQ after having previously had HCV RNA \< LLOQ, while on treatment, * \> 1 log10 IU/mL increase in HCV RNA from nadir while on treatment, * HCV RNA persistently ≥ LLOQ through 8 weeks of treatment (ie nonresponse) * Relapse * HCV RNA ≥ LLOQ during the posttreatment period having achieved HCV RNA \< LLOQ at end of treatment, confirmed with 2 consecutive values or last available posttreatment measurement
Time frame: Up to Posttreatment Week 24
Population: Full Analysis Set
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| SOF/VEL 12 Weeks (Group 1) | Percentage of Participants With Virologic Failure | 12.2 percentage of participants |
| SOF/VEL+RBV 12 Weeks (Group 2) | Percentage of Participants With Virologic Failure | 3.4 percentage of participants |
| SOF/VEL 24 Weeks (Group 3) | Percentage of Participants With Virologic Failure | 8.9 percentage of participants |