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A Study of the Combination Regimen Grazoprevir (MK-5172) and Elbasvir (MK-8742) ± Ribavirin in Participants With Chronic Hepatitis C (MK-5172-035)

A Phase II Randomized Clinical Trial to Study the Efficacy and Safety of the Combination Regimen MK-5172 and MK-8742 ± Ribavirin (RBV) in Subjects With Chronic Hepatitis C Virus Infection

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01717326
Acronym
C-WORTHy
Enrollment
573
Registered
2012-10-30
Start date
2013-02-07
Completion date
2015-05-06
Last updated
2021-02-05

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Hepatitis C

Brief summary

This is a study of the safety and efficacy of grazoprevir (MK-5172) in combination with elbasvir (MK-8742) ± ribavirin (RBV). The primary efficacy endpoint will be Sustained Virologic Response 12 weeks after the end of all study therapy (SVR12) in each of the treatment arms.

Detailed description

Part A is being done in treatment-naïve (TN), genotype 1 (GT1), interferon eligible, non-cirrhotic (N-C) participants with chronic hepatitis C (CHC). Participants will be assigned randomly to 1 of 2 treatment arms in which they will receive grazoprevir 100 mg once daily (QD) + elbasvir 20 mg or 50 mg QD and twice daily (BID) RBV, or to a treatment arm in which they will receive grazoprevir 100 mg QD + elbasvir 50 mg QD without RBV. Treatment will last 12 weeks. In Part B, participants with hepatitis C virus (HCV) GT1 and HCV ribonucleic acid (RNA) levels of ≥10,000 IU/mL will be randomly assigned to a study arm, based on absence or presence of cirrhosis (C), whether they are TN or had poor response to previous antiviral therapy (null responders \[NR\]), or whether co-infected with human immunodeficiency virus (HIV); these participants will receive open-label grazoprevir (100 mg) in combination with elbasvir (50 mg) ± RBV. Treatment will last 8 to 18 weeks dependent on arm assignment. In Part C, TN, N-C participants with HCV GT1b and HCV RNA levels of ≥10,000 IU/mL will be randomly assigned to receive open-label grazoprevir (100 mg) in combination with elbasvir (50 mg) ± RBV. Treatment will last 8 weeks. In Part D, TN N-C participants with HCV GT3 and HCV RNA levels of ≥10,000 IU/mL will be randomly assigned to receive open-label grazoprevir (100 mg) in combination with elbasvir (50 mg) + RBV for 12 or 18 weeks.

Interventions

100 mg tablet orally QD

Part A: 20 or 50 mg capsule orally QD Parts B, C, and D: 50 mg capsule orally QD

Placebo to Elbasvir 20 or 50 mg capsule, orally, once daily for 12 weeks to maintain blind (Part A only)

DRUGRibavirin

Oral capsules BID at a total daily dose from 800 to 1400 mg based on participant weight

Sponsors

Merck Sharp & Dohme LLC
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

All participants * CHC genotype 1 (GT1) virus infection (Parts A, B, and C) or GT3 virus infection (Part D) * Female participants of childbearing potential or male participant with female partners of childbearing potential, must use two acceptable methods of birth control from ≥2 weeks prior to Day 1 until ≥6 months after last dose of study drug, or longer if dictated by local regulations Part A - Absence (no medical history or physical findings) of ascites, bleeding esophageal varices, hepatic encephalopathy, or other signs or symptoms of advanced liver disease, or cirrhosis - No evidence of advanced fibrosis, cirrhosis and/or hepatocellular carcinoma by biopsy or noninvasive testing (FibroScan and/or FibroTest) Parts B, C, and D * Treatment naïve with or without cirrhosis, or * Prior treatment failure to Peg-IFN/Ribavirin with or without cirrhosis, or * Co-infected with human immunodeficiency virus (HIV) without cirrhosis * Absence (no medical history or physical findings) of ascites, bleeding esophageal varices, hepatic encephalopathy, or other signs or symptoms of advanced liver disease * Liver disease staging assessment by liver biopsy or noninvasive testing (FibroScan and/or FibroTest)

Exclusion criteria

All participants * Non-GT1 HCV infection (Part A, Part B, and Part C) or a non-GT3 HCV infection (Part D) including a mixed GT infection (with a non-GT1 \[Part A, Part B, and Part C\] or non-GT3 \[Part D\]) or a non-typeable genotype * Evidence of hepatocellular carcinoma (HCC) or is under evaluation for HCC * Currently participating or participated in a study with an investigational compound within 30 days of signing informed consent and is not willing to refrain from participating in another study * Diabetic and/or hypertensive with clinically significant ocular examination findings * History of depression associated with hospitalization for depression, electroconvulsive therapy, or resulting in prolonged absence from work and/or significant disruption of daily functions * Suicidal or homicidal ideations and/or attempt, or history of severe psychiatric disorders * Clinical diagnosis of substance abuse * Current history of seizure disorder, stroke, or transient ischemic attack * Immunologically mediated disease * Chronic pulmonary disease * Clinically significant cardiac abnormalities/dysfunction * Active clinical gout within the last year * Hemoglobinopathy or myelodysplastic syndromes * History of organ transplants including hematopoietic stem cell transplants * Poor venous access * Indwelling venous catheter * History of gastric surgery or malabsorption disorders * Severe concurrent disease * Evidence of active or suspected malignancy, or a history of malignancy, ≤5 years before * Pregnant, lactating, expecting to conceive or donate eggs * Male participant with pregnant female partner * Member/family member of the investigational study or sponsor staff directly involved with this study * Evidence or history of chronic hepatitis not caused by HCV Part A * Not treatment-naïve * Documented to be HIV positive * Taking or planning to take significant inducers or inhibitors of CYP3A4 substrates or herbal supplements 2 weeks prior to start of study medications Parts B, C, and D * Previously received any HCV direct-acting antivirals * Requiring, or likely to require, chronic systemic administration of corticosteroids during the course of the trial * For participants diagnosed with diabetes mellitus, documented HbA1c \>8.5%

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Participants Achieving Sustained Virologic Response 12 Weeks After the End of All Study Therapy (SVR12)12 weeks after end of therapy (up to 30 weeks)Blood was drawn from each participant to assess Hepatitis C Virus ribonucleic acid (HCV RNA) plasma levels using the Roche COBAS™ Taqman™ HCV Test, v2.0 at various time points prior to, during, and after dosing. The Roche COBAS Taqman HCV Test, v2.0 assay (High Pure System) had a lower limit of quantification of 25 IU/mL and a limit of detection of 15.1 IU/mL (in plasma). SVR12 was defined as HCV RNA \<25 IU/ml at 12 weeks after the end of all study therapy. 95% confidence intervals provided based on the Clopper-Pearson method.
Percentage of Participants Experiencing at Least One Adverse Event (AE) During the Treatment Period and First 14 Follow-up DaysFrom Day 1 [post-dose] through 14 days following last dose of study drug (up to 20 weeks)An AE was defined as any unfavorable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of a medicinal product or protocol-specified procedure, whether or not considered related to the medicinal product or protocol-specified procedure. Any worsening (i.e., any clinically significant adverse change in frequency and/or intensity) of a preexisting condition which is temporally associated with the use of the SPONSOR's product, was also an AE.
Percentage of Participants Discontinuing Study Therapy Due to an AE During the Treatment Period and First 14 Follow-up DaysFrom Day 1 [post-dose] through 14 days following last dose of study drug (up to 20 weeks)An AE was defined as any unfavorable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of a medicinal product or protocol-specified procedure, whether or not considered related to the medicinal product or protocol-specified procedure. Any worsening (i.e., any clinically significant adverse change in frequency and/or intensity) of a preexisting condition which is temporally associated with the use of the SPONSOR's product, was also an AE.

Secondary

MeasureTime frameDescription
Percentage of Participants Achieving Undetectable HCV RNA at Week 12Week 12HCV-RNA levels in plasma were measured using the Roche COBAS™ Taqman™ HCV Test (v.2.0) on blood samples drawn from each participant during treatment at various time points prior to, during, and after dosing. Undetectable HCV RNA was defined as below the 15.1 IU/ml limit of detection. The percentage of participants achieving undetectable HCV RNA and accompanying 95% CIs were reported at TW12 for each treatment arm of the PP Population (as applicable). 95% confidence intervals provided based on the Clopper-Pearson method.
Percentage of Participants Achieving HCV RNA <25 IU/mL at Week 2Week 2HCV-RNA levels in plasma were measured using the Roche COBAS™ Taqman™ HCV Test (v.2.0) on blood samples drawn from each participant during treatment at various time points prior to, during, and after dosing. The Roche COBAS Taqman HCV Test, v2.0 assay (High Pure System) had a LLoQ of 25 IU/mL and a limit of detection of 15.1 IU/mL (in plasma). The percentage of participants achieving HCV RNA levels \<25 IU/ml and accompanying 95% CIs were reported at TW2 for each treatment arm of the PP Population. 95% confidence intervals provided based on the Clopper-Pearson method.
Percentage of Participants Achieving HCV RNA <25 IU/mL at Week 4Week 4HCV-RNA levels in plasma were measured using the Roche COBAS™ Taqman™ HCV Test (v.2.0) on blood samples drawn from each participant during treatment at various time points prior to, during, and after dosing. The Roche COBAS Taqman HCV Test, v2.0 assay (High Pure System) had a LLoQ of 25 IU/mL and a limit of detection of 15.1 IU/mL (in plasma). The percentage of participants achieving HCV RNA levels \<25 IU/ml and accompanying 95% CIs were reported at TW4 for each treatment arm of the PP Population. 95% confidence intervals provided based on the Clopper-Pearson method.
Mean Time to First Achievement of Undetectable Hepatitis C Virus Ribonucleic Acid (HCV RNA)From first dose of study medication until first achievement of undetectable HCV RNA (up to 18 weeks of treatment)Blood was drawn from each participant to assess HCV RNA plasma levels using the Roche COBAS™ Taqman™ HCV Test, v2.0 at various time points prior to, during, and after dosing. Kaplan Meier summary statistics were used to characterize the time to first achievement of undetectable HCV RNA.
Percentage of Participants Achieving Sustained Virologic Response 4 Weeks After the End of All Therapy (SVR4)4 weeks after end of therapy (up to 22 weeks)Blood was drawn from each participant to assess Hepatitis C Virus ribonucleic acid (HCV RNA) plasma levels using the Roche COBAS™ Taqman™ HCV Test, v2.0 at various time points prior to, during, and after dosing. The Roche COBAS Taqman HCV Test, v2.0 assay (High Pure System) had a LLoQ of 25 IU/mL and a limit of detection of 15.1 IU/mL (in plasma). SVR4 was defined as HCV RNA \<25 IU/ml at 4 weeks after the end of all study therapy. 95% confidence intervals provided based on the Clopper-Pearson method.
Percentage of Participants Achieving Sustained Virologic Response 24 Weeks After the End of All Study Therapy (SVR24)24 weeks after end of therapy (up to 42 weeks)Blood was drawn from each participant to assess Hepatitis C Virus ribonucleic acid (HCV RNA) plasma levels using the Roche COBAS™ Taqman™ HCV Test, v2.0 at various time points prior to, during, and after dosing. The Roche COBAS Taqman HCV Test, v2.0 assay (High Pure System) had a LLoQ of 25 IU/mL and a limit of detection of 15.1 IU/mL (in plasma). SVR24 was defined as HCV RNA \<25 IU/ml at 24 weeks after the end of all study therapy. 95% confidence intervals provided based on the Clopper-Pearson method.
Percentage of Participants Achieving HCV RNA <25 IU/mL at Week 12Week 12HCV-RNA levels in plasma were measured using the Roche COBAS™ Taqman™ HCV Test (v.2.0) on blood samples drawn from each participant during treatment at various time points prior to, during, and after dosing. The Roche COBAS Taqman HCV Test, v2.0 assay (High Pure System) had a LLoQ of 25 IU/mL and a limit of detection of 15.1 IU/mL (in plasma). The percentage of participants achieving HCV RNA levels \<25 IU/ml and accompanying 95% CIs were reported at TW12 for each treatment arm of the PP Population (as applicable). 95% confidence intervals provided based on the Clopper-Pearson method.
Percentage of Participants Achieving Undetectable HCV RNA at Week 2Week 2HCV-RNA levels in plasma were measured using the Roche COBAS™ Taqman™ HCV Test (v.2.0) on blood samples drawn from each participant during treatment at various time points prior to, during, and after dosing. Undetectable HCV RNA was defined as below the 15.1 IU/ml limit of detection. The percentage of participants achieving undetectable HCV RNA and accompanying 95% CIs were reported at TW2 for each treatment arm of the PP Population. 95% confidence intervals provided based on the Clopper-Pearson method.
Percentage of Participants Achieving Undetectable HCV RNA at Week 4Week 4HCV-RNA levels in plasma were measured using the Roche COBAS™ Taqman™ HCV Test (v.2.0) on blood samples drawn from each participant during treatment at various time points prior to, during, and after dosing. Undetectable HCV RNA was defined as below the 15.1 IU/ml limit of detection. The percentage of participants achieving undetectable HCV RNA and accompanying 95% CIs were reported at TW4 for each treatment arm of the PP Population. 95% confidence intervals provided based on the Clopper-Pearson method.

Participant flow

Recruitment details

Male/female participants with Hepatitis C Virus (HCV) genotype 1 (GT1) or GT3 who were either treatment-naïve (TN) or prior null responder (NR), cirrhotic (C) or noncirrhotic (NC), and monoinfected with HCV or coinfected with HCV and human immunodeficiency virus (HIV) were recruited based on entry requirements for Parts A, B, C, or D.

Pre-assignment details

573 participants were randomized on study. 65 TN NC GT1 participants were randomized in Part A. Part B randomized 94 TN NC participants, 123 TN C participants, 130 NR participants (C and NC), and 59 TN HIV coinfected participants. Part C randomized 61 TN NC GT1b participants, and Part D randomized 41 TN NC GT3 participants.

Participants by arm

ArmCount
A1: TN NC Grazoprevir 100 mg + Elbasvir 20 mg + RBV-12 wk
GT1a and GT1b participants receive Grazoprevir 100 mg tablet orally once daily (QD) for 12 weeks, Elbasvir 20 mg capsule and Placebo capsule orally QD for 12 weeks, RBV capsules orally twice daily (BID) for 24 weeks at a total daily dose from 800 to 1400 mg based on participant weight.
25
A2: TN NC Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wk
GT1a and GT1b participants receive Grazoprevir 100 mg tablet orally QD for 12 weeks, Elbasvir 50 mg capsule and Placebo capsule orally QD for 12 weeks, RBV capsules orally BID for 24 weeks at a total daily dose from 800 to 1400 mg based on participant weight.
27
A3: TN NC/GT1b Grazoprevir 100 mg + Elbasvir 50 Mg-12 wk
GT1b only participants receive Grazoprevr 100 mg tablet orally QD for 12 weeks, Elbasvir 50 mg capsule orally QD for 12 weeks.
13
B1: TN NC/GT1a Grazoprevir 100 mg + Elbasvir 50 mg + RBV-8 wk
GT1a only participants receive Grazoprevir 100 mg tablet orally QD for 8 weeks, Elbasvir 50 mg capsule orally QD for 8 weeks, RBV capsules orally BID for 8 weeks at a total daily dose from 800 to 1400 mg based on participant weight.
30
B2: TN NC Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wk
GT1a/non-a participants receive Grazoprevir 100 mg tablet orally QD for 12 weeks, Elbasvir 50 mg capsule orally QD for 12 weeks, RBV capsules orally BID for 12 weeks at a total daily dose from 800 to 1400 mg based on participant weight.
33
B3: TN NC/GT1a Grazoprevir 100 mg + Elbasvir 50 Mg-12 wk
GT1a only participants receive Grazoprevir 100 mg tablet orally QD for 12 weeks, Elbasvir 50 mg capsule orally QD for 12 weeks.
31
B4: TN C Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wk
GT1a/non-a participants receive Grazoprevir 100 mg tablet orally QD for 12 weeks, Elbasvir 50 mg capsule orally QD for 12 weeks, RBV capsules orally BID for 12 weeks at a total daily dose from 800 to 1400 mg based on participant weight.
31
B5: TN C Grazoprevir 100 mg + Elbasvir 50 mg for 12 wk
GT1a/non-a participants receive Grazoprevir 100 mg tablet orally QD for 12 weeks, Elbasvir 50 mg capsule orally QD for 12 weeks.
29
B6: TN C Grazoprevir 100 mg + Elbasvir 50 mg + RBV-18 wk
GT1a/non-a participants receive Grazoprevir 100 mg tablet orally QD for 18 weeks, Elbasvir 50 mg capsule orally QD for 18 weeks, RBV capsules orally BID for 18 weeks at a total daily dose from 800 to 1400 mg based on participant weight.
32
B7: TN C Grazoprevir 100 mg + Elbasvir 50 Mg-18 wk
GT1a/non-a participants receive Grazoprevir 100 mg tablet orally QD for 18 weeks, Elbasvir 50 mg capsule orally QD for 18 weeks.
31
B8: NR Grazoprevir 100 mg + Elbasvir 50 mg +RBV-12 wk
GT1a/non-a participants receive Grazoprevir 100 mg tablet orally QD for 12 weeks, Elbasvir 50 mg capsule orally QD for 12 weeks, RBV capsules orally BID for 12 weeks at a total daily dose from 800 to 1400 mg based on participant weight.
32
B9: NR Grazoprevir 100 mg + Elbasvir 50 Mg-12 wk
GT1a/non-a participants receive Grazoprevir 100 mg tablet orally QD for 12 weeks, Elbasvir 50 mg capsule orally QD for 12 weeks.
33
B10: NR Grazoprevir 100 mg + Elbasvir 50 mg + RBV-8 wk
GT1a/non-a participants receive Grazoprevir 100 mg tablet orally QD for 8 weeks, Elbasvir 50 mg capsule orally QD for 8 weeks, RBV capsules orally BID for 8 weeks at a total daily dose from 800 to 1400 mg based on participant weight.
33
B11: NR Grazoprevir 100 mg + Elbasvir 50 Mg-18 wk
GT1a/non-a participants receive Grazoprevir 100 mg tablet orally QD for 18 weeks, Elbasvir 50 mg capsule orally QD for 18 weeks.
32
B12: TN HIV NC Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wk
GT1a/non-a participants receive Grazoprevir 100 mg tablet orally QD for 12 weeks, Elbasvir 50 mg capsule orally QD for 12 weeks, RBV capsules orally BID for 12 weeks at a total daily dose from 800 to 1400 mg based on participant weight.
29
B13: TN HIV NC Grazoprevir 100 mg + Elbasvir 50 Mg-12 wk
GT1a/non-a participants receive Grazoprevir 100 mg tablet orally QD for 12 weeks, Elbasvir 50 mg capsule orally QD for 12 weeks.
30
C1: TN NC/GT1b Grazoprevir 100 mg + Elbasvir 50 mg + RBV-8 wk
GT1b participants receive Grazoprevir 100 mg tablet orally QD for 8 weeks, Elbasvir 50 mg capsule orally QD for 8 weeks, and RBV capsules orally BID for 8 weeks at a total daily dose from 800 to 1400 mg based on participant weight.
30
C2: TN NC/GT1b Grazoprevir 100 mg + Elbasvir 50 Mg-8 wk
GT1b participants receive Grazoprevir 100 mg tablet orally QD for 8 weeks and Elbasvir 50 mg capsule orally QD for 8 weeks.
31
D1: TN NC/GT3 Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wk
GT3 participants receive Grazoprevir 100 mg tablet orally QD for 12 weeks, Elbasvir 50 mg capsule orally QD for 12 weeks, and RBV capsules orally BID for 12 weeks at a total daily dose from 800 to 1400 mg based on participant weight.
20
D2: TN NC/GT3 Grazoprevir 100 mg + Elbasvir 50 mg + RBV-18 wk
GT3 participants receive Grazoprevir 100 mg tablet orally QD for 18 weeks, Elbasvir 50 mg capsule orally QD for 18 weeks, and RBV capsules orally BID for 18 weeks at a total daily dose from 800 to 1400 mg based on participant weight.
21
Total573

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004FG005FG006FG007FG008FG009FG010FG011FG012FG013FG014FG015FG016FG017FG018FG019
Overall StudyDeath00000000001000000000
Overall StudyLost to Follow-up30021010001000021023
Overall StudyPhysician Decision00000000010000000000
Overall StudyProtocol Violation00001000000000000000
Overall StudyWithdrawal by Subject01000000010010010023

Baseline characteristics

CharacteristicA1: TN NC Grazoprevir 100 mg + Elbasvir 20 mg + RBV-12 wkA2: TN NC Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkA3: TN NC/GT1b Grazoprevir 100 mg + Elbasvir 50 Mg-12 wkB1: TN NC/GT1a Grazoprevir 100 mg + Elbasvir 50 mg + RBV-8 wkB2: TN NC Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkB3: TN NC/GT1a Grazoprevir 100 mg + Elbasvir 50 Mg-12 wkB4: TN C Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkB5: TN C Grazoprevir 100 mg + Elbasvir 50 mg for 12 wkB6: TN C Grazoprevir 100 mg + Elbasvir 50 mg + RBV-18 wkB7: TN C Grazoprevir 100 mg + Elbasvir 50 Mg-18 wkB8: NR Grazoprevir 100 mg + Elbasvir 50 mg +RBV-12 wkB9: NR Grazoprevir 100 mg + Elbasvir 50 Mg-12 wkB10: NR Grazoprevir 100 mg + Elbasvir 50 mg + RBV-8 wkB11: NR Grazoprevir 100 mg + Elbasvir 50 Mg-18 wkB12: TN HIV NC Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkB13: TN HIV NC Grazoprevir 100 mg + Elbasvir 50 Mg-12 wkC1: TN NC/GT1b Grazoprevir 100 mg + Elbasvir 50 mg + RBV-8 wkC2: TN NC/GT1b Grazoprevir 100 mg + Elbasvir 50 Mg-8 wkD1: TN NC/GT3 Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkD2: TN NC/GT3 Grazoprevir 100 mg + Elbasvir 50 mg + RBV-18 wkTotal
Age, Continuous48.7 years
STANDARD_DEVIATION 12.5
43.9 years
STANDARD_DEVIATION 12.6
43.3 years
STANDARD_DEVIATION 13.5
48.4 years
STANDARD_DEVIATION 11.9
49.7 years
STANDARD_DEVIATION 11.5
53.6 years
STANDARD_DEVIATION 8.4
57.0 years
STANDARD_DEVIATION 7
59.0 years
STANDARD_DEVIATION 7.8
58.8 years
STANDARD_DEVIATION 8.2
58.9 years
STANDARD_DEVIATION 8
52.2 years
STANDARD_DEVIATION 8.8
54.4 years
STANDARD_DEVIATION 9.1
56.2 years
STANDARD_DEVIATION 10.9
54.3 years
STANDARD_DEVIATION 12.3
46.2 years
STANDARD_DEVIATION 8.4
43.5 years
STANDARD_DEVIATION 10.4
50.6 years
STANDARD_DEVIATION 10.9
55.3 years
STANDARD_DEVIATION 10.3
49.0 years
STANDARD_DEVIATION 11.5
42.4 years
STANDARD_DEVIATION 10.8
51.9 years
STANDARD_DEVIATION 11.3
Sex: Female, Male
Female
13 Participants17 Participants6 Participants12 Participants15 Participants15 Participants12 Participants10 Participants17 Participants10 Participants12 Participants13 Participants17 Participants14 Participants6 Participants6 Participants14 Participants18 Participants12 Participants13 Participants252 Participants
Sex: Female, Male
Male
12 Participants10 Participants7 Participants18 Participants18 Participants16 Participants19 Participants19 Participants15 Participants21 Participants20 Participants20 Participants16 Participants18 Participants23 Participants24 Participants16 Participants13 Participants8 Participants8 Participants321 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
EG005
affected / at risk
EG006
affected / at risk
EG007
affected / at risk
EG008
affected / at risk
EG009
affected / at risk
EG010
affected / at risk
EG011
affected / at risk
EG012
affected / at risk
EG013
affected / at risk
EG014
affected / at risk
EG015
affected / at risk
EG016
affected / at risk
EG017
affected / at risk
EG018
affected / at risk
EG019
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —— / —— / —— / —— / —— / —— / —— / —— / —— / —— / —— / —— / —— / —— / —— / —— / —— / —
other
Total, other adverse events
19 / 2524 / 2811 / 1227 / 3023 / 3324 / 3123 / 3118 / 2926 / 3224 / 3124 / 3225 / 3332 / 3325 / 3218 / 2914 / 3022 / 3014 / 3116 / 2020 / 21
serious
Total, serious adverse events
1 / 250 / 280 / 120 / 300 / 330 / 311 / 312 / 291 / 321 / 312 / 321 / 330 / 331 / 321 / 292 / 301 / 300 / 310 / 202 / 21

Outcome results

Primary

Percentage of Participants Achieving Sustained Virologic Response 12 Weeks After the End of All Study Therapy (SVR12)

Blood was drawn from each participant to assess Hepatitis C Virus ribonucleic acid (HCV RNA) plasma levels using the Roche COBAS™ Taqman™ HCV Test, v2.0 at various time points prior to, during, and after dosing. The Roche COBAS Taqman HCV Test, v2.0 assay (High Pure System) had a lower limit of quantification of 25 IU/mL and a limit of detection of 15.1 IU/mL (in plasma). SVR12 was defined as HCV RNA \<25 IU/ml at 12 weeks after the end of all study therapy. 95% confidence intervals provided based on the Clopper-Pearson method.

Time frame: 12 weeks after end of therapy (up to 30 weeks)

Population: The Per-Protocol (PP) population; all randomized participants who received ≥1 dose of study treatment and without important protocol deviations who had data available at the respective time point.

ArmMeasureValue (NUMBER)
A1: TN NC Grazoprevir 100 mg + Elbasvir 20 mg + RBV-12 wkPercentage of Participants Achieving Sustained Virologic Response 12 Weeks After the End of All Study Therapy (SVR12)100.0 percentage of participants
A2: TN NC Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Achieving Sustained Virologic Response 12 Weeks After the End of All Study Therapy (SVR12)95.8 percentage of participants
A3: TN NC/GT1b Grazoprevir 100 mg + Elbasvir 50 Mg-12 wkPercentage of Participants Achieving Sustained Virologic Response 12 Weeks After the End of All Study Therapy (SVR12)100.0 percentage of participants
B1: TN NC/GT1a Grazoprevir 100 mg + Elbasvir 50 mg + RBV-8 wkPercentage of Participants Achieving Sustained Virologic Response 12 Weeks After the End of All Study Therapy (SVR12)82.8 percentage of participants
B2: TN NC Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Achieving Sustained Virologic Response 12 Weeks After the End of All Study Therapy (SVR12)100.0 percentage of participants
B3: TN NC/GT1a Grazoprevir 100 mg + Elbasvir 50 Mg-12 wkPercentage of Participants Achieving Sustained Virologic Response 12 Weeks After the End of All Study Therapy (SVR12)96.8 percentage of participants
B4: TN C Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Achieving Sustained Virologic Response 12 Weeks After the End of All Study Therapy (SVR12)90.0 percentage of participants
B5: TN C Grazoprevir 100 mg + Elbasvir 50 mg for 12 wkPercentage of Participants Achieving Sustained Virologic Response 12 Weeks After the End of All Study Therapy (SVR12)96.6 percentage of participants
B6: TN C Grazoprevir 100 mg + Elbasvir 50 mg + RBV-18 wkPercentage of Participants Achieving Sustained Virologic Response 12 Weeks After the End of All Study Therapy (SVR12)100.0 percentage of participants
B7: TN C Grazoprevir 100 mg + Elbasvir 50 Mg-18 wkPercentage of Participants Achieving Sustained Virologic Response 12 Weeks After the End of All Study Therapy (SVR12)93.5 percentage of participants
B8: NR Grazoprevir 100 mg + Elbasvir 50 mg +RBV-12 wkPercentage of Participants Achieving Sustained Virologic Response 12 Weeks After the End of All Study Therapy (SVR12)100.0 percentage of participants
B9: NR Grazoprevir 100 mg + Elbasvir 50 Mg-12 wkPercentage of Participants Achieving Sustained Virologic Response 12 Weeks After the End of All Study Therapy (SVR12)90.9 percentage of participants
B10: NR Grazoprevir 100 mg + Elbasvir 50 mg + RBV-8 wkPercentage of Participants Achieving Sustained Virologic Response 12 Weeks After the End of All Study Therapy (SVR12)100.0 percentage of participants
B11: NR Grazoprevir 100 mg + Elbasvir 50 Mg-18 wkPercentage of Participants Achieving Sustained Virologic Response 12 Weeks After the End of All Study Therapy (SVR12)96.9 percentage of participants
B12: TN HIV NC Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Achieving Sustained Virologic Response 12 Weeks After the End of All Study Therapy (SVR12)96.6 percentage of participants
B13: TN HIV NC Grazoprevir 100 mg + Elbasvir 50 Mg-12 wkPercentage of Participants Achieving Sustained Virologic Response 12 Weeks After the End of All Study Therapy (SVR12)92.9 percentage of participants
C1: TN NC/GT1b Grazoprevir 100 mg + Elbasvir 50 mg + RBV-8 wkPercentage of Participants Achieving Sustained Virologic Response 12 Weeks After the End of All Study Therapy (SVR12)93.1 percentage of participants
C2: TN NC/GT1b Grazoprevir 100 mg + Elbasvir 50 Mg-8 wkPercentage of Participants Achieving Sustained Virologic Response 12 Weeks After the End of All Study Therapy (SVR12)93.5 percentage of participants
D1: TN NC/GT3 Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Achieving Sustained Virologic Response 12 Weeks After the End of All Study Therapy (SVR12)47.4 percentage of participants
D2: TN NC/GT3 Grazoprevir 100 mg + Elbasvir 50 mg + RBV-18 wkPercentage of Participants Achieving Sustained Virologic Response 12 Weeks After the End of All Study Therapy (SVR12)61.1 percentage of participants
Primary

Percentage of Participants Discontinuing Study Therapy Due to an AE During the Treatment Period and First 14 Follow-up Days

An AE was defined as any unfavorable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of a medicinal product or protocol-specified procedure, whether or not considered related to the medicinal product or protocol-specified procedure. Any worsening (i.e., any clinically significant adverse change in frequency and/or intensity) of a preexisting condition which is temporally associated with the use of the SPONSOR's product, was also an AE.

Time frame: From Day 1 [post-dose] through 14 days following last dose of study drug (up to 20 weeks)

Population: APaT population; all randomized who received ≥1 dose of study treatment according to treatment actually received. One participant randomized to A3 arm was treated on A2 arm and thus was counted under the A2 arm (n=28).

ArmMeasureValue (NUMBER)
A1: TN NC Grazoprevir 100 mg + Elbasvir 20 mg + RBV-12 wkPercentage of Participants Discontinuing Study Therapy Due to an AE During the Treatment Period and First 14 Follow-up Days0.0 percentage of participants
A2: TN NC Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Discontinuing Study Therapy Due to an AE During the Treatment Period and First 14 Follow-up Days0.0 percentage of participants
A3: TN NC/GT1b Grazoprevir 100 mg + Elbasvir 50 Mg-12 wkPercentage of Participants Discontinuing Study Therapy Due to an AE During the Treatment Period and First 14 Follow-up Days0.0 percentage of participants
B1: TN NC/GT1a Grazoprevir 100 mg + Elbasvir 50 mg + RBV-8 wkPercentage of Participants Discontinuing Study Therapy Due to an AE During the Treatment Period and First 14 Follow-up Days0.0 percentage of participants
B2: TN NC Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Discontinuing Study Therapy Due to an AE During the Treatment Period and First 14 Follow-up Days0.0 percentage of participants
B3: TN NC/GT1a Grazoprevir 100 mg + Elbasvir 50 Mg-12 wkPercentage of Participants Discontinuing Study Therapy Due to an AE During the Treatment Period and First 14 Follow-up Days0.0 percentage of participants
B4: TN C Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Discontinuing Study Therapy Due to an AE During the Treatment Period and First 14 Follow-up Days0.0 percentage of participants
B5: TN C Grazoprevir 100 mg + Elbasvir 50 mg for 12 wkPercentage of Participants Discontinuing Study Therapy Due to an AE During the Treatment Period and First 14 Follow-up Days0.0 percentage of participants
B6: TN C Grazoprevir 100 mg + Elbasvir 50 mg + RBV-18 wkPercentage of Participants Discontinuing Study Therapy Due to an AE During the Treatment Period and First 14 Follow-up Days6.3 percentage of participants
B7: TN C Grazoprevir 100 mg + Elbasvir 50 Mg-18 wkPercentage of Participants Discontinuing Study Therapy Due to an AE During the Treatment Period and First 14 Follow-up Days0.0 percentage of participants
B8: NR Grazoprevir 100 mg + Elbasvir 50 mg +RBV-12 wkPercentage of Participants Discontinuing Study Therapy Due to an AE During the Treatment Period and First 14 Follow-up Days3.1 percentage of participants
B9: NR Grazoprevir 100 mg + Elbasvir 50 Mg-12 wkPercentage of Participants Discontinuing Study Therapy Due to an AE During the Treatment Period and First 14 Follow-up Days0.0 percentage of participants
B10: NR Grazoprevir 100 mg + Elbasvir 50 mg + RBV-8 wkPercentage of Participants Discontinuing Study Therapy Due to an AE During the Treatment Period and First 14 Follow-up Days0.0 percentage of participants
B11: NR Grazoprevir 100 mg + Elbasvir 50 Mg-18 wkPercentage of Participants Discontinuing Study Therapy Due to an AE During the Treatment Period and First 14 Follow-up Days0.0 percentage of participants
B12: TN HIV NC Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Discontinuing Study Therapy Due to an AE During the Treatment Period and First 14 Follow-up Days0.0 percentage of participants
B13: TN HIV NC Grazoprevir 100 mg + Elbasvir 50 Mg-12 wkPercentage of Participants Discontinuing Study Therapy Due to an AE During the Treatment Period and First 14 Follow-up Days0.0 percentage of participants
C1: TN NC/GT1b Grazoprevir 100 mg + Elbasvir 50 mg + RBV-8 wkPercentage of Participants Discontinuing Study Therapy Due to an AE During the Treatment Period and First 14 Follow-up Days0.0 percentage of participants
C2: TN NC/GT1b Grazoprevir 100 mg + Elbasvir 50 Mg-8 wkPercentage of Participants Discontinuing Study Therapy Due to an AE During the Treatment Period and First 14 Follow-up Days0.0 percentage of participants
D1: TN NC/GT3 Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Discontinuing Study Therapy Due to an AE During the Treatment Period and First 14 Follow-up Days0.0 percentage of participants
D2: TN NC/GT3 Grazoprevir 100 mg + Elbasvir 50 mg + RBV-18 wkPercentage of Participants Discontinuing Study Therapy Due to an AE During the Treatment Period and First 14 Follow-up Days4.8 percentage of participants
Primary

Percentage of Participants Experiencing at Least One Adverse Event (AE) During the Treatment Period and First 14 Follow-up Days

An AE was defined as any unfavorable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of a medicinal product or protocol-specified procedure, whether or not considered related to the medicinal product or protocol-specified procedure. Any worsening (i.e., any clinically significant adverse change in frequency and/or intensity) of a preexisting condition which is temporally associated with the use of the SPONSOR's product, was also an AE.

Time frame: From Day 1 [post-dose] through 14 days following last dose of study drug (up to 20 weeks)

Population: All Participants as Treated (APaT) population; all randomized who received ≥1 dose of study treatment according to treatment actually received. One participant randomized to A3 arm was treated on A2 arm and thus was counted under the A2 arm (n=28).

ArmMeasureValue (NUMBER)
A1: TN NC Grazoprevir 100 mg + Elbasvir 20 mg + RBV-12 wkPercentage of Participants Experiencing at Least One Adverse Event (AE) During the Treatment Period and First 14 Follow-up Days88.0 percentage of participants
A2: TN NC Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Experiencing at Least One Adverse Event (AE) During the Treatment Period and First 14 Follow-up Days85.7 percentage of participants
A3: TN NC/GT1b Grazoprevir 100 mg + Elbasvir 50 Mg-12 wkPercentage of Participants Experiencing at Least One Adverse Event (AE) During the Treatment Period and First 14 Follow-up Days91.7 percentage of participants
B1: TN NC/GT1a Grazoprevir 100 mg + Elbasvir 50 mg + RBV-8 wkPercentage of Participants Experiencing at Least One Adverse Event (AE) During the Treatment Period and First 14 Follow-up Days90.0 percentage of participants
B2: TN NC Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Experiencing at Least One Adverse Event (AE) During the Treatment Period and First 14 Follow-up Days72.7 percentage of participants
B3: TN NC/GT1a Grazoprevir 100 mg + Elbasvir 50 Mg-12 wkPercentage of Participants Experiencing at Least One Adverse Event (AE) During the Treatment Period and First 14 Follow-up Days87.1 percentage of participants
B4: TN C Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Experiencing at Least One Adverse Event (AE) During the Treatment Period and First 14 Follow-up Days77.4 percentage of participants
B5: TN C Grazoprevir 100 mg + Elbasvir 50 mg for 12 wkPercentage of Participants Experiencing at Least One Adverse Event (AE) During the Treatment Period and First 14 Follow-up Days65.5 percentage of participants
B6: TN C Grazoprevir 100 mg + Elbasvir 50 mg + RBV-18 wkPercentage of Participants Experiencing at Least One Adverse Event (AE) During the Treatment Period and First 14 Follow-up Days87.5 percentage of participants
B7: TN C Grazoprevir 100 mg + Elbasvir 50 Mg-18 wkPercentage of Participants Experiencing at Least One Adverse Event (AE) During the Treatment Period and First 14 Follow-up Days83.9 percentage of participants
B8: NR Grazoprevir 100 mg + Elbasvir 50 mg +RBV-12 wkPercentage of Participants Experiencing at Least One Adverse Event (AE) During the Treatment Period and First 14 Follow-up Days81.3 percentage of participants
B9: NR Grazoprevir 100 mg + Elbasvir 50 Mg-12 wkPercentage of Participants Experiencing at Least One Adverse Event (AE) During the Treatment Period and First 14 Follow-up Days78.8 percentage of participants
B10: NR Grazoprevir 100 mg + Elbasvir 50 mg + RBV-8 wkPercentage of Participants Experiencing at Least One Adverse Event (AE) During the Treatment Period and First 14 Follow-up Days97.0 percentage of participants
B11: NR Grazoprevir 100 mg + Elbasvir 50 Mg-18 wkPercentage of Participants Experiencing at Least One Adverse Event (AE) During the Treatment Period and First 14 Follow-up Days81.3 percentage of participants
B12: TN HIV NC Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Experiencing at Least One Adverse Event (AE) During the Treatment Period and First 14 Follow-up Days65.5 percentage of participants
B13: TN HIV NC Grazoprevir 100 mg + Elbasvir 50 Mg-12 wkPercentage of Participants Experiencing at Least One Adverse Event (AE) During the Treatment Period and First 14 Follow-up Days53.3 percentage of participants
C1: TN NC/GT1b Grazoprevir 100 mg + Elbasvir 50 mg + RBV-8 wkPercentage of Participants Experiencing at Least One Adverse Event (AE) During the Treatment Period and First 14 Follow-up Days73.3 percentage of participants
C2: TN NC/GT1b Grazoprevir 100 mg + Elbasvir 50 Mg-8 wkPercentage of Participants Experiencing at Least One Adverse Event (AE) During the Treatment Period and First 14 Follow-up Days54.8 percentage of participants
D1: TN NC/GT3 Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Experiencing at Least One Adverse Event (AE) During the Treatment Period and First 14 Follow-up Days85.0 percentage of participants
D2: TN NC/GT3 Grazoprevir 100 mg + Elbasvir 50 mg + RBV-18 wkPercentage of Participants Experiencing at Least One Adverse Event (AE) During the Treatment Period and First 14 Follow-up Days90.5 percentage of participants
Secondary

Mean Time to First Achievement of Undetectable Hepatitis C Virus Ribonucleic Acid (HCV RNA)

Blood was drawn from each participant to assess HCV RNA plasma levels using the Roche COBAS™ Taqman™ HCV Test, v2.0 at various time points prior to, during, and after dosing. Kaplan Meier summary statistics were used to characterize the time to first achievement of undetectable HCV RNA.

Time frame: From first dose of study medication until first achievement of undetectable HCV RNA (up to 18 weeks of treatment)

Population: FAS; all randomized participants who received ≥1 dose of study treatment.

ArmMeasureValue (MEAN)Dispersion
A1: TN NC Grazoprevir 100 mg + Elbasvir 20 mg + RBV-12 wkMean Time to First Achievement of Undetectable Hepatitis C Virus Ribonucleic Acid (HCV RNA)21.7 daysStandard Error 2.2
A2: TN NC Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkMean Time to First Achievement of Undetectable Hepatitis C Virus Ribonucleic Acid (HCV RNA)19.2 daysStandard Error 1.8
A3: TN NC/GT1b Grazoprevir 100 mg + Elbasvir 50 Mg-12 wkMean Time to First Achievement of Undetectable Hepatitis C Virus Ribonucleic Acid (HCV RNA)23.4 daysStandard Error 2.9
B1: TN NC/GT1a Grazoprevir 100 mg + Elbasvir 50 mg + RBV-8 wkMean Time to First Achievement of Undetectable Hepatitis C Virus Ribonucleic Acid (HCV RNA)27.9 daysStandard Error 3
B2: TN NC Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkMean Time to First Achievement of Undetectable Hepatitis C Virus Ribonucleic Acid (HCV RNA)30.7 daysStandard Error 2.3
B3: TN NC/GT1a Grazoprevir 100 mg + Elbasvir 50 Mg-12 wkMean Time to First Achievement of Undetectable Hepatitis C Virus Ribonucleic Acid (HCV RNA)32.0 daysStandard Error 3
B4: TN C Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkMean Time to First Achievement of Undetectable Hepatitis C Virus Ribonucleic Acid (HCV RNA)37.0 daysStandard Error 2.8
B5: TN C Grazoprevir 100 mg + Elbasvir 50 mg for 12 wkMean Time to First Achievement of Undetectable Hepatitis C Virus Ribonucleic Acid (HCV RNA)33.2 daysStandard Error 2.4
B6: TN C Grazoprevir 100 mg + Elbasvir 50 mg + RBV-18 wkMean Time to First Achievement of Undetectable Hepatitis C Virus Ribonucleic Acid (HCV RNA)33.1 daysStandard Error 2.8
B7: TN C Grazoprevir 100 mg + Elbasvir 50 Mg-18 wkMean Time to First Achievement of Undetectable Hepatitis C Virus Ribonucleic Acid (HCV RNA)33.7 daysStandard Error 2.6
B8: NR Grazoprevir 100 mg + Elbasvir 50 mg +RBV-12 wkMean Time to First Achievement of Undetectable Hepatitis C Virus Ribonucleic Acid (HCV RNA)31.9 daysStandard Error 2.2
B9: NR Grazoprevir 100 mg + Elbasvir 50 Mg-12 wkMean Time to First Achievement of Undetectable Hepatitis C Virus Ribonucleic Acid (HCV RNA)37.4 daysStandard Error 2.5
B10: NR Grazoprevir 100 mg + Elbasvir 50 mg + RBV-8 wkMean Time to First Achievement of Undetectable Hepatitis C Virus Ribonucleic Acid (HCV RNA)37.4 daysStandard Error 2.7
B11: NR Grazoprevir 100 mg + Elbasvir 50 Mg-18 wkMean Time to First Achievement of Undetectable Hepatitis C Virus Ribonucleic Acid (HCV RNA)42.7 daysStandard Error 3.3
B12: TN HIV NC Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkMean Time to First Achievement of Undetectable Hepatitis C Virus Ribonucleic Acid (HCV RNA)27.6 daysStandard Error 3
B13: TN HIV NC Grazoprevir 100 mg + Elbasvir 50 Mg-12 wkMean Time to First Achievement of Undetectable Hepatitis C Virus Ribonucleic Acid (HCV RNA)29.0 daysStandard Error 2.9
C1: TN NC/GT1b Grazoprevir 100 mg + Elbasvir 50 mg + RBV-8 wkMean Time to First Achievement of Undetectable Hepatitis C Virus Ribonucleic Acid (HCV RNA)23.7 daysStandard Error 2.1
C2: TN NC/GT1b Grazoprevir 100 mg + Elbasvir 50 Mg-8 wkMean Time to First Achievement of Undetectable Hepatitis C Virus Ribonucleic Acid (HCV RNA)34.5 daysStandard Error 2.6
D1: TN NC/GT3 Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkMean Time to First Achievement of Undetectable Hepatitis C Virus Ribonucleic Acid (HCV RNA)30.1 daysStandard Error 3.7
D2: TN NC/GT3 Grazoprevir 100 mg + Elbasvir 50 mg + RBV-18 wkMean Time to First Achievement of Undetectable Hepatitis C Virus Ribonucleic Acid (HCV RNA)19.8 daysStandard Error 2.3
Secondary

Percentage of Participants Achieving HCV RNA <25 IU/mL at Week 12

HCV-RNA levels in plasma were measured using the Roche COBAS™ Taqman™ HCV Test (v.2.0) on blood samples drawn from each participant during treatment at various time points prior to, during, and after dosing. The Roche COBAS Taqman HCV Test, v2.0 assay (High Pure System) had a LLoQ of 25 IU/mL and a limit of detection of 15.1 IU/mL (in plasma). The percentage of participants achieving HCV RNA levels \<25 IU/ml and accompanying 95% CIs were reported at TW12 for each treatment arm of the PP Population (as applicable). 95% confidence intervals provided based on the Clopper-Pearson method.

Time frame: Week 12

Population: The PP population; all randomized participants who received ≥1 dose of study treatment and without important protocol deviations who had data available at the respective time point. The B1, C1, and C2 arms only received 8 weeks of treatment and were thus excluded from this analysis.

ArmMeasureValue (NUMBER)
A1: TN NC Grazoprevir 100 mg + Elbasvir 20 mg + RBV-12 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 12100.0 percentage of participants
A2: TN NC Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 12100.0 percentage of participants
A3: TN NC/GT1b Grazoprevir 100 mg + Elbasvir 50 Mg-12 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 12100.0 percentage of participants
B2: TN NC Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 12100.0 percentage of participants
B3: TN NC/GT1a Grazoprevir 100 mg + Elbasvir 50 Mg-12 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 12100.0 percentage of participants
B4: TN C Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 1293.3 percentage of participants
B5: TN C Grazoprevir 100 mg + Elbasvir 50 mg for 12 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 12100.0 percentage of participants
B6: TN C Grazoprevir 100 mg + Elbasvir 50 mg + RBV-18 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 12100.0 percentage of participants
B7: TN C Grazoprevir 100 mg + Elbasvir 50 Mg-18 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 12100.0 percentage of participants
B8: NR Grazoprevir 100 mg + Elbasvir 50 mg +RBV-12 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 12100.0 percentage of participants
B9: NR Grazoprevir 100 mg + Elbasvir 50 Mg-12 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 12100.0 percentage of participants
B10: NR Grazoprevir 100 mg + Elbasvir 50 mg + RBV-8 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 12100.0 percentage of participants
B11: NR Grazoprevir 100 mg + Elbasvir 50 Mg-18 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 1296.9 percentage of participants
B12: TN HIV NC Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 12100.0 percentage of participants
B13: TN HIV NC Grazoprevir 100 mg + Elbasvir 50 Mg-12 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 1292.9 percentage of participants
D1: TN NC/GT3 Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 1247.4 percentage of participants
D2: TN NC/GT3 Grazoprevir 100 mg + Elbasvir 50 mg + RBV-18 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 1275.0 percentage of participants
Secondary

Percentage of Participants Achieving HCV RNA <25 IU/mL at Week 2

HCV-RNA levels in plasma were measured using the Roche COBAS™ Taqman™ HCV Test (v.2.0) on blood samples drawn from each participant during treatment at various time points prior to, during, and after dosing. The Roche COBAS Taqman HCV Test, v2.0 assay (High Pure System) had a LLoQ of 25 IU/mL and a limit of detection of 15.1 IU/mL (in plasma). The percentage of participants achieving HCV RNA levels \<25 IU/ml and accompanying 95% CIs were reported at TW2 for each treatment arm of the PP Population. 95% confidence intervals provided based on the Clopper-Pearson method.

Time frame: Week 2

Population: The PP population; all randomized participants who received ≥1 dose of study treatment and without important protocol deviations who had data available at the respective time point.

ArmMeasureValue (NUMBER)
A1: TN NC Grazoprevir 100 mg + Elbasvir 20 mg + RBV-12 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 291.3 percentage of participants
A2: TN NC Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 292.0 percentage of participants
A3: TN NC/GT1b Grazoprevir 100 mg + Elbasvir 50 Mg-12 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 291.7 percentage of participants
B1: TN NC/GT1a Grazoprevir 100 mg + Elbasvir 50 mg + RBV-8 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 286.2 percentage of participants
B2: TN NC Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 273.3 percentage of participants
B3: TN NC/GT1a Grazoprevir 100 mg + Elbasvir 50 Mg-12 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 277.4 percentage of participants
B4: TN C Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 260.0 percentage of participants
B5: TN C Grazoprevir 100 mg + Elbasvir 50 mg for 12 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 279.3 percentage of participants
B6: TN C Grazoprevir 100 mg + Elbasvir 50 mg + RBV-18 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 278.1 percentage of participants
B7: TN C Grazoprevir 100 mg + Elbasvir 50 Mg-18 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 267.7 percentage of participants
B8: NR Grazoprevir 100 mg + Elbasvir 50 mg +RBV-12 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 277.4 percentage of participants
B9: NR Grazoprevir 100 mg + Elbasvir 50 Mg-12 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 266.7 percentage of participants
B10: NR Grazoprevir 100 mg + Elbasvir 50 mg + RBV-8 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 257.6 percentage of participants
B11: NR Grazoprevir 100 mg + Elbasvir 50 Mg-18 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 262.5 percentage of participants
B12: TN HIV NC Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 289.7 percentage of participants
B13: TN HIV NC Grazoprevir 100 mg + Elbasvir 50 Mg-12 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 276.7 percentage of participants
C1: TN NC/GT1b Grazoprevir 100 mg + Elbasvir 50 mg + RBV-8 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 276.7 percentage of participants
C2: TN NC/GT1b Grazoprevir 100 mg + Elbasvir 50 Mg-8 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 261.3 percentage of participants
D1: TN NC/GT3 Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 270.0 percentage of participants
D2: TN NC/GT3 Grazoprevir 100 mg + Elbasvir 50 mg + RBV-18 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 285.0 percentage of participants
Secondary

Percentage of Participants Achieving HCV RNA <25 IU/mL at Week 4

HCV-RNA levels in plasma were measured using the Roche COBAS™ Taqman™ HCV Test (v.2.0) on blood samples drawn from each participant during treatment at various time points prior to, during, and after dosing. The Roche COBAS Taqman HCV Test, v2.0 assay (High Pure System) had a LLoQ of 25 IU/mL and a limit of detection of 15.1 IU/mL (in plasma). The percentage of participants achieving HCV RNA levels \<25 IU/ml and accompanying 95% CIs were reported at TW4 for each treatment arm of the PP Population. 95% confidence intervals provided based on the Clopper-Pearson method.

Time frame: Week 4

Population: The PP population; all randomized participants who received ≥1 dose of study treatment and without important protocol deviations who had data available at the respective time point.

ArmMeasureValue (NUMBER)
A1: TN NC Grazoprevir 100 mg + Elbasvir 20 mg + RBV-12 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 4100.0 percentage of participants
A2: TN NC Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 4100.0 percentage of participants
A3: TN NC/GT1b Grazoprevir 100 mg + Elbasvir 50 Mg-12 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 4100.0 percentage of participants
B1: TN NC/GT1a Grazoprevir 100 mg + Elbasvir 50 mg + RBV-8 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 4100.0 percentage of participants
B2: TN NC Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 4100.0 percentage of participants
B3: TN NC/GT1a Grazoprevir 100 mg + Elbasvir 50 Mg-12 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 4100.0 percentage of participants
B4: TN C Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 490.0 percentage of participants
B5: TN C Grazoprevir 100 mg + Elbasvir 50 mg for 12 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 4100.0 percentage of participants
B6: TN C Grazoprevir 100 mg + Elbasvir 50 mg + RBV-18 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 4100.0 percentage of participants
B7: TN C Grazoprevir 100 mg + Elbasvir 50 Mg-18 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 490.3 percentage of participants
B8: NR Grazoprevir 100 mg + Elbasvir 50 mg +RBV-12 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 4100.0 percentage of participants
B9: NR Grazoprevir 100 mg + Elbasvir 50 Mg-12 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 496.9 percentage of participants
B10: NR Grazoprevir 100 mg + Elbasvir 50 mg + RBV-8 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 497.0 percentage of participants
B11: NR Grazoprevir 100 mg + Elbasvir 50 Mg-18 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 493.8 percentage of participants
B12: TN HIV NC Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 4100.0 percentage of participants
B13: TN HIV NC Grazoprevir 100 mg + Elbasvir 50 Mg-12 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 4100.0 percentage of participants
C1: TN NC/GT1b Grazoprevir 100 mg + Elbasvir 50 mg + RBV-8 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 4100.0 percentage of participants
C2: TN NC/GT1b Grazoprevir 100 mg + Elbasvir 50 Mg-8 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 496.8 percentage of participants
D1: TN NC/GT3 Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 465.0 percentage of participants
D2: TN NC/GT3 Grazoprevir 100 mg + Elbasvir 50 mg + RBV-18 wkPercentage of Participants Achieving HCV RNA <25 IU/mL at Week 483.3 percentage of participants
Secondary

Percentage of Participants Achieving Sustained Virologic Response 24 Weeks After the End of All Study Therapy (SVR24)

Blood was drawn from each participant to assess Hepatitis C Virus ribonucleic acid (HCV RNA) plasma levels using the Roche COBAS™ Taqman™ HCV Test, v2.0 at various time points prior to, during, and after dosing. The Roche COBAS Taqman HCV Test, v2.0 assay (High Pure System) had a LLoQ of 25 IU/mL and a limit of detection of 15.1 IU/mL (in plasma). SVR24 was defined as HCV RNA \<25 IU/ml at 24 weeks after the end of all study therapy. 95% confidence intervals provided based on the Clopper-Pearson method.

Time frame: 24 weeks after end of therapy (up to 42 weeks)

Population: The PP population; all randomized participants who received ≥1 dose of study treatment and without important protocol deviations who had data available at the respective time point.

ArmMeasureValue (NUMBER)
A1: TN NC Grazoprevir 100 mg + Elbasvir 20 mg + RBV-12 wkPercentage of Participants Achieving Sustained Virologic Response 24 Weeks After the End of All Study Therapy (SVR24)100.0 percentage of participants
A2: TN NC Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Achieving Sustained Virologic Response 24 Weeks After the End of All Study Therapy (SVR24)95.8 percentage of participants
A3: TN NC/GT1b Grazoprevir 100 mg + Elbasvir 50 Mg-12 wkPercentage of Participants Achieving Sustained Virologic Response 24 Weeks After the End of All Study Therapy (SVR24)100.0 percentage of participants
B1: TN NC/GT1a Grazoprevir 100 mg + Elbasvir 50 mg + RBV-8 wkPercentage of Participants Achieving Sustained Virologic Response 24 Weeks After the End of All Study Therapy (SVR24)78.6 percentage of participants
B2: TN NC Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Achieving Sustained Virologic Response 24 Weeks After the End of All Study Therapy (SVR24)100.0 percentage of participants
B3: TN NC/GT1a Grazoprevir 100 mg + Elbasvir 50 Mg-12 wkPercentage of Participants Achieving Sustained Virologic Response 24 Weeks After the End of All Study Therapy (SVR24)96.8 percentage of participants
B4: TN C Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Achieving Sustained Virologic Response 24 Weeks After the End of All Study Therapy (SVR24)90.0 percentage of participants
B5: TN C Grazoprevir 100 mg + Elbasvir 50 mg for 12 wkPercentage of Participants Achieving Sustained Virologic Response 24 Weeks After the End of All Study Therapy (SVR24)96.6 percentage of participants
B6: TN C Grazoprevir 100 mg + Elbasvir 50 mg + RBV-18 wkPercentage of Participants Achieving Sustained Virologic Response 24 Weeks After the End of All Study Therapy (SVR24)100.0 percentage of participants
B7: TN C Grazoprevir 100 mg + Elbasvir 50 Mg-18 wkPercentage of Participants Achieving Sustained Virologic Response 24 Weeks After the End of All Study Therapy (SVR24)93.1 percentage of participants
B8: NR Grazoprevir 100 mg + Elbasvir 50 mg +RBV-12 wkPercentage of Participants Achieving Sustained Virologic Response 24 Weeks After the End of All Study Therapy (SVR24)100.0 percentage of participants
B9: NR Grazoprevir 100 mg + Elbasvir 50 Mg-12 wkPercentage of Participants Achieving Sustained Virologic Response 24 Weeks After the End of All Study Therapy (SVR24)90.9 percentage of participants
B10: NR Grazoprevir 100 mg + Elbasvir 50 mg + RBV-8 wkPercentage of Participants Achieving Sustained Virologic Response 24 Weeks After the End of All Study Therapy (SVR24)100.0 percentage of participants
B11: NR Grazoprevir 100 mg + Elbasvir 50 Mg-18 wkPercentage of Participants Achieving Sustained Virologic Response 24 Weeks After the End of All Study Therapy (SVR24)96.9 percentage of participants
B12: TN HIV NC Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Achieving Sustained Virologic Response 24 Weeks After the End of All Study Therapy (SVR24)96.6 percentage of participants
B13: TN HIV NC Grazoprevir 100 mg + Elbasvir 50 Mg-12 wkPercentage of Participants Achieving Sustained Virologic Response 24 Weeks After the End of All Study Therapy (SVR24)88.9 percentage of participants
C1: TN NC/GT1b Grazoprevir 100 mg + Elbasvir 50 mg + RBV-8 wkPercentage of Participants Achieving Sustained Virologic Response 24 Weeks After the End of All Study Therapy (SVR24)93.1 percentage of participants
C2: TN NC/GT1b Grazoprevir 100 mg + Elbasvir 50 Mg-8 wkPercentage of Participants Achieving Sustained Virologic Response 24 Weeks After the End of All Study Therapy (SVR24)93.5 percentage of participants
D1: TN NC/GT3 Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Achieving Sustained Virologic Response 24 Weeks After the End of All Study Therapy (SVR24)47.4 percentage of participants
D2: TN NC/GT3 Grazoprevir 100 mg + Elbasvir 50 mg + RBV-18 wkPercentage of Participants Achieving Sustained Virologic Response 24 Weeks After the End of All Study Therapy (SVR24)58.8 percentage of participants
Secondary

Percentage of Participants Achieving Sustained Virologic Response 4 Weeks After the End of All Therapy (SVR4)

Blood was drawn from each participant to assess Hepatitis C Virus ribonucleic acid (HCV RNA) plasma levels using the Roche COBAS™ Taqman™ HCV Test, v2.0 at various time points prior to, during, and after dosing. The Roche COBAS Taqman HCV Test, v2.0 assay (High Pure System) had a LLoQ of 25 IU/mL and a limit of detection of 15.1 IU/mL (in plasma). SVR4 was defined as HCV RNA \<25 IU/ml at 4 weeks after the end of all study therapy. 95% confidence intervals provided based on the Clopper-Pearson method.

Time frame: 4 weeks after end of therapy (up to 22 weeks)

Population: The PP population; all randomized participants who received ≥1 dose of study treatment and without important protocol deviations who had data available at the respective time point.

ArmMeasureValue (NUMBER)
A1: TN NC Grazoprevir 100 mg + Elbasvir 20 mg + RBV-12 wkPercentage of Participants Achieving Sustained Virologic Response 4 Weeks After the End of All Therapy (SVR4)100.0 percentage of participants
A2: TN NC Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Achieving Sustained Virologic Response 4 Weeks After the End of All Therapy (SVR4)95.8 percentage of participants
A3: TN NC/GT1b Grazoprevir 100 mg + Elbasvir 50 Mg-12 wkPercentage of Participants Achieving Sustained Virologic Response 4 Weeks After the End of All Therapy (SVR4)100.0 percentage of participants
B1: TN NC/GT1a Grazoprevir 100 mg + Elbasvir 50 mg + RBV-8 wkPercentage of Participants Achieving Sustained Virologic Response 4 Weeks After the End of All Therapy (SVR4)93.3 percentage of participants
B2: TN NC Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Achieving Sustained Virologic Response 4 Weeks After the End of All Therapy (SVR4)100.0 percentage of participants
B3: TN NC/GT1a Grazoprevir 100 mg + Elbasvir 50 Mg-12 wkPercentage of Participants Achieving Sustained Virologic Response 4 Weeks After the End of All Therapy (SVR4)96.8 percentage of participants
B4: TN C Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Achieving Sustained Virologic Response 4 Weeks After the End of All Therapy (SVR4)96.7 percentage of participants
B5: TN C Grazoprevir 100 mg + Elbasvir 50 mg for 12 wkPercentage of Participants Achieving Sustained Virologic Response 4 Weeks After the End of All Therapy (SVR4)96.6 percentage of participants
B6: TN C Grazoprevir 100 mg + Elbasvir 50 mg + RBV-18 wkPercentage of Participants Achieving Sustained Virologic Response 4 Weeks After the End of All Therapy (SVR4)100.0 percentage of participants
B7: TN C Grazoprevir 100 mg + Elbasvir 50 Mg-18 wkPercentage of Participants Achieving Sustained Virologic Response 4 Weeks After the End of All Therapy (SVR4)96.8 percentage of participants
B8: NR Grazoprevir 100 mg + Elbasvir 50 mg +RBV-12 wkPercentage of Participants Achieving Sustained Virologic Response 4 Weeks After the End of All Therapy (SVR4)100.0 percentage of participants
B9: NR Grazoprevir 100 mg + Elbasvir 50 Mg-12 wkPercentage of Participants Achieving Sustained Virologic Response 4 Weeks After the End of All Therapy (SVR4)93.9 percentage of participants
B10: NR Grazoprevir 100 mg + Elbasvir 50 mg + RBV-8 wkPercentage of Participants Achieving Sustained Virologic Response 4 Weeks After the End of All Therapy (SVR4)100.0 percentage of participants
B11: NR Grazoprevir 100 mg + Elbasvir 50 Mg-18 wkPercentage of Participants Achieving Sustained Virologic Response 4 Weeks After the End of All Therapy (SVR4)96.9 percentage of participants
B12: TN HIV NC Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Achieving Sustained Virologic Response 4 Weeks After the End of All Therapy (SVR4)96.6 percentage of participants
B13: TN HIV NC Grazoprevir 100 mg + Elbasvir 50 Mg-12 wkPercentage of Participants Achieving Sustained Virologic Response 4 Weeks After the End of All Therapy (SVR4)93.1 percentage of participants
C1: TN NC/GT1b Grazoprevir 100 mg + Elbasvir 50 mg + RBV-8 wkPercentage of Participants Achieving Sustained Virologic Response 4 Weeks After the End of All Therapy (SVR4)93.1 percentage of participants
C2: TN NC/GT1b Grazoprevir 100 mg + Elbasvir 50 Mg-8 wkPercentage of Participants Achieving Sustained Virologic Response 4 Weeks After the End of All Therapy (SVR4)96.8 percentage of participants
D1: TN NC/GT3 Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Achieving Sustained Virologic Response 4 Weeks After the End of All Therapy (SVR4)50.0 percentage of participants
D2: TN NC/GT3 Grazoprevir 100 mg + Elbasvir 50 mg + RBV-18 wkPercentage of Participants Achieving Sustained Virologic Response 4 Weeks After the End of All Therapy (SVR4)61.1 percentage of participants
Secondary

Percentage of Participants Achieving Undetectable HCV RNA at Week 12

HCV-RNA levels in plasma were measured using the Roche COBAS™ Taqman™ HCV Test (v.2.0) on blood samples drawn from each participant during treatment at various time points prior to, during, and after dosing. Undetectable HCV RNA was defined as below the 15.1 IU/ml limit of detection. The percentage of participants achieving undetectable HCV RNA and accompanying 95% CIs were reported at TW12 for each treatment arm of the PP Population (as applicable). 95% confidence intervals provided based on the Clopper-Pearson method.

Time frame: Week 12

Population: The PP population; all randomized participants who received ≥1 dose of study treatment and without important protocol deviations who had data available at the respective time point. The B1, C1, and C2 arms only received 8 weeks of treatment and were thus excluded from this analysis.

ArmMeasureValue (NUMBER)
A1: TN NC Grazoprevir 100 mg + Elbasvir 20 mg + RBV-12 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 12100.0 percentage of participants
A2: TN NC Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 12100.0 percentage of participants
A3: TN NC/GT1b Grazoprevir 100 mg + Elbasvir 50 Mg-12 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 12100.0 percentage of participants
B2: TN NC Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 12100.0 percentage of participants
B3: TN NC/GT1a Grazoprevir 100 mg + Elbasvir 50 Mg-12 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 12100.0 percentage of participants
B4: TN C Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 1293.3 percentage of participants
B5: TN C Grazoprevir 100 mg + Elbasvir 50 mg for 12 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 1296.6 percentage of participants
B6: TN C Grazoprevir 100 mg + Elbasvir 50 mg + RBV-18 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 12100.0 percentage of participants
B7: TN C Grazoprevir 100 mg + Elbasvir 50 Mg-18 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 12100.0 percentage of participants
B8: NR Grazoprevir 100 mg + Elbasvir 50 mg +RBV-12 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 12100.0 percentage of participants
B9: NR Grazoprevir 100 mg + Elbasvir 50 Mg-12 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 1293.8 percentage of participants
B10: NR Grazoprevir 100 mg + Elbasvir 50 mg + RBV-8 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 12100.0 percentage of participants
B11: NR Grazoprevir 100 mg + Elbasvir 50 Mg-18 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 1296.9 percentage of participants
B12: TN HIV NC Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 1293.1 percentage of participants
B13: TN HIV NC Grazoprevir 100 mg + Elbasvir 50 Mg-12 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 1292.9 percentage of participants
D1: TN NC/GT3 Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 1247.7 percentage of participants
D2: TN NC/GT3 Grazoprevir 100 mg + Elbasvir 50 mg + RBV-18 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 1265.0 percentage of participants
Secondary

Percentage of Participants Achieving Undetectable HCV RNA at Week 2

HCV-RNA levels in plasma were measured using the Roche COBAS™ Taqman™ HCV Test (v.2.0) on blood samples drawn from each participant during treatment at various time points prior to, during, and after dosing. Undetectable HCV RNA was defined as below the 15.1 IU/ml limit of detection. The percentage of participants achieving undetectable HCV RNA and accompanying 95% CIs were reported at TW2 for each treatment arm of the PP Population. 95% confidence intervals provided based on the Clopper-Pearson method.

Time frame: Week 2

Population: The PP population; all randomized participants who received ≥1 dose of study treatment and without important protocol deviations who had data available at the respective time point.

ArmMeasureValue (NUMBER)
A1: TN NC Grazoprevir 100 mg + Elbasvir 20 mg + RBV-12 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 252.2 percentage of participants
A2: TN NC Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 244.0 percentage of participants
A3: TN NC/GT1b Grazoprevir 100 mg + Elbasvir 50 Mg-12 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 241.7 percentage of participants
B1: TN NC/GT1a Grazoprevir 100 mg + Elbasvir 50 mg + RBV-8 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 244.8 percentage of participants
B2: TN NC Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 220.0 percentage of participants
B3: TN NC/GT1a Grazoprevir 100 mg + Elbasvir 50 Mg-12 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 216.1 percentage of participants
B4: TN C Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 26.7 percentage of participants
B5: TN C Grazoprevir 100 mg + Elbasvir 50 mg for 12 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 210.3 percentage of participants
B6: TN C Grazoprevir 100 mg + Elbasvir 50 mg + RBV-18 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 225.0 percentage of participants
B7: TN C Grazoprevir 100 mg + Elbasvir 50 Mg-18 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 216.1 percentage of participants
B8: NR Grazoprevir 100 mg + Elbasvir 50 mg +RBV-12 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 212.9 percentage of participants
B9: NR Grazoprevir 100 mg + Elbasvir 50 Mg-12 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 26.1 percentage of participants
B10: NR Grazoprevir 100 mg + Elbasvir 50 mg + RBV-8 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 26.1 percentage of participants
B11: NR Grazoprevir 100 mg + Elbasvir 50 Mg-18 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 26.3 percentage of participants
B12: TN HIV NC Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 237.9 percentage of participants
B13: TN HIV NC Grazoprevir 100 mg + Elbasvir 50 Mg-12 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 240.0 percentage of participants
C1: TN NC/GT1b Grazoprevir 100 mg + Elbasvir 50 mg + RBV-8 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 246.7 percentage of participants
C2: TN NC/GT1b Grazoprevir 100 mg + Elbasvir 50 Mg-8 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 212.9 percentage of participants
D1: TN NC/GT3 Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 240.0 percentage of participants
D2: TN NC/GT3 Grazoprevir 100 mg + Elbasvir 50 mg + RBV-18 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 270.0 percentage of participants
Secondary

Percentage of Participants Achieving Undetectable HCV RNA at Week 4

HCV-RNA levels in plasma were measured using the Roche COBAS™ Taqman™ HCV Test (v.2.0) on blood samples drawn from each participant during treatment at various time points prior to, during, and after dosing. Undetectable HCV RNA was defined as below the 15.1 IU/ml limit of detection. The percentage of participants achieving undetectable HCV RNA and accompanying 95% CIs were reported at TW4 for each treatment arm of the PP Population. 95% confidence intervals provided based on the Clopper-Pearson method.

Time frame: Week 4

Population: The PP population; all randomized participants who received ≥1 dose of study treatment and without important protocol deviations who had data available at the respective time point.

ArmMeasureValue (NUMBER)
A1: TN NC Grazoprevir 100 mg + Elbasvir 20 mg + RBV-12 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 473.9 percentage of participants
A2: TN NC Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 491.7 percentage of participants
A3: TN NC/GT1b Grazoprevir 100 mg + Elbasvir 50 Mg-12 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 475.0 percentage of participants
B1: TN NC/GT1a Grazoprevir 100 mg + Elbasvir 50 mg + RBV-8 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 473.3 percentage of participants
B2: TN NC Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 483.3 percentage of participants
B3: TN NC/GT1a Grazoprevir 100 mg + Elbasvir 50 Mg-12 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 477.4 percentage of participants
B4: TN C Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 460.0 percentage of participants
B5: TN C Grazoprevir 100 mg + Elbasvir 50 mg for 12 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 479.3 percentage of participants
B6: TN C Grazoprevir 100 mg + Elbasvir 50 mg + RBV-18 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 471.9 percentage of participants
B7: TN C Grazoprevir 100 mg + Elbasvir 50 Mg-18 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 471.0 percentage of participants
B8: NR Grazoprevir 100 mg + Elbasvir 50 mg +RBV-12 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 483.3 percentage of participants
B9: NR Grazoprevir 100 mg + Elbasvir 50 Mg-12 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 468.8 percentage of participants
B10: NR Grazoprevir 100 mg + Elbasvir 50 mg + RBV-8 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 469.7 percentage of participants
B11: NR Grazoprevir 100 mg + Elbasvir 50 Mg-18 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 453.1 percentage of participants
B12: TN HIV NC Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 475.9 percentage of participants
B13: TN HIV NC Grazoprevir 100 mg + Elbasvir 50 Mg-12 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 478.6 percentage of participants
C1: TN NC/GT1b Grazoprevir 100 mg + Elbasvir 50 mg + RBV-8 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 486.7 percentage of participants
C2: TN NC/GT1b Grazoprevir 100 mg + Elbasvir 50 Mg-8 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 474.2 percentage of participants
D1: TN NC/GT3 Grazoprevir 100 mg + Elbasvir 50 mg + RBV-12 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 450.0 percentage of participants
D2: TN NC/GT3 Grazoprevir 100 mg + Elbasvir 50 mg + RBV-18 wkPercentage of Participants Achieving Undetectable HCV RNA at Week 477.8 percentage of participants

Source: ClinicalTrials.gov · Data processed: Mar 19, 2026