Back to resultsEfficacy and Safety of Combination Grazoprevir (MK-5172) + Elbasvir (MK-8742) + Ribavirin (RBV) in Genotype 2 Hepatitis C Infection (MK-5172-047)
Primary Purpose
Hepatitis C
Status
Completed
Phase
Phase 2
Locations
Study Type
Interventional
Intervention
Grazoprevir
Elbasvir
Ribavirin
Sponsored by
About this trial
This is an interventional treatment trial for Hepatitis C
Eligibility Criteria
Inclusion Criteria:
Parts A and B: -Body weight ≥50 kg (111 lbs) and ≤ 125 kg (275 lbs) -Has absence of cirrhosis -Agrees to use two acceptable methods of birth control from at least 2 weeks prior to Day 1 and continue until at least 6 months after last dose of study drug, or longer if dictated by local regulations (for female participant who is of childbearing potential or male participant with female sexual partner who is of childbearing potential).
Part A only: -Has chronic HCV GT2 infection Part B only: -Has chronic HCV GT2, GT4, GT5, or GT6 infection
Exclusion Criteria:
Parts A and B:
-Is not treatment naïve (participant has had previous treatment with any interferon, RBV, approved or experimental direct acting antiviral(s), or other investigational therapies for HCV) -Is determined to be coinfected with hepatitis B virus (HBsAg positive) or HIV -Has evidence of, or is under evaluation for, hepatocellular carcinoma (HCC) -Has a clinical diagnosis of substance abuse including the following specified drugs within specified timeframes: Alcohol, intravenous drugs, inhalational, psychotropics, narcotics, cocaine use, prescription or over-the-counter drugs (within 1 year of the screening visit), is receiving opiate agonist substitution therapy (within 1 year of screening visit), or excessive historic marijuana use -Has evidence of active or suspected malignancy, or a history of malignancy, within the last 5 years -Female participant who is pregnant, lactating, expecting to conceive or donate eggs, or is of childbearing potential and unwilling to commit to two methods of birth control throughout treatment and after the completion of all treatment, or male participant who is planning to impregnate or provide sperm donation or has a female sexual partner of childbearing potential and is unwilling to commit to using a two methods of birth control throughout treatment and after the completion of all treatment -Has evidence or history of chronic hepatitis not caused by HCV, including but not limited to nonalcoholic steatohepatitis (NASH), drug-induced hepatitis, and autoimmune hepatitis. -Has uncontrolled diabetes (documented HbA1c >8.5%)
Part A only:
-Has non GT2 HCV infection
Part B only:
-Has HCV infection with a genotype other than GT2, GT4, GT5 or GT6
Sites / Locations
Arms of the Study
Arm 1
Arm 2
Arm 3
Arm 4
Arm Type
Experimental
Experimental
Experimental
Experimental
Arm Label
GT2: Grazoprevir + Elbasvir + RBV (Arm A1)
GT2: Grazoprevir + RBV (Arm B1)
GT 4,5,6: Grazoprevir + Elbasvir + RBV (Arm B2)
GT 4,5,6: Grazoprevir + Elbasvir (Arm B3)
Arm Description
During Part A of the study, GT2 participants will receive 100 mg grazoprevir + 50 mg elbasvir + standard weight-based dosing of RBV for 12 weeks.
During Part B of the study, GT2 participants will receive 100 mg grazoprevir + standard weight-based dosing of RBV for 12 weeks.
During Part B of the study, GT4/GT5/GT6 participants will receive 100 mg grazoprevir + 50 mg elbasvir + standard weight-based dosing of RBV for 12 weeks.
During Part B of the study, GT4/GT5/GT6 participants will receive 100 mg grazoprevir + 50 mg elbasvir for 12 weeks.
Outcomes
Primary Outcome Measures
Percentage of Participants With Sustained Virologic Response 12 Weeks After The End of Study Therapy (SVR12)
SVR12 was defined as Hepatitis C Virus ribonucleic acid (HCV RNA) <25 IU/mL, either target detected but unquantifiable (TD[u]) or target not detected (TND), at 12 weeks after the end of all study therapy. The percentage of participants with SVR12 and accompanying 95% confidence intervals (CIs) were reported for each treatment arm in the Per-Protocol (PP) Population.
Percentage of Participants With Adverse Events (AEs), Serious AEs (SAEs), Drug-Related AEs, Drug-Related SAEs, or Discontinuation of Study Treatment Due to AE During the Treatment Period and First 14 Follow-up Days
AE was defined as any untoward medical occurrence in a participant administered a pharmaceutical product and which did not necessarily have to have a causal relationship with this treatment. An AE could therefore be any unfavorable and unintended sign, symptom, or disease temporally associated with the use of a medicinal product/protocol-specified procedure, whether or not considered related to the medicinal product/protocol-specified procedure. Any worsening of a preexisting condition temporally associated with the use of the product was also an AE. An SAE was an AE that resulted in death, was life threatening, resulted in persistent or significant disability/incapacity, resulted in or prolonged an existing inpatient hospitalization, was a congenital anomaly/birth defect, was a cancer, was associated with an overdose, was another important medical event. The investigator determined the relationship of the AE to the treatment as unrelated or possibly, probably, or definitely related.
Secondary Outcome Measures
Mean Time to First Achievement of Undetectable HCV RNA During Treatment
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 TWs 1, 2, 4, 8, and 12. Undetectable HCV RNA (or TND) was defined as below the 9.3 IU/ml limit of detection. Kaplan Meier summary statistics were calculated for each treatment arm in the Full Analysis Set (FAS).
Percentage of Participants Achieving Undetectable HCV RNA During Treatment By Timepoint
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 TWs 1, 2, 4, 8, and 12. Undetectable HCV RNA (or TND) was defined as below the 9.3 IU/ml limit of detection. The percentage of participants achieving undetectable HCV RNA and accompanying 95% CIs were reported at TW2, TW4, and TW12 for each treatment arm of the PP Population.
Percentage of Participants Achieving HCV RNA <25 IU/mL During Treatment By Timepoint
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 TWs 1, 2, 4, 8, and 12. The Roche COBAS™ Taqman™ HCV Test (v.2.0) has a lower limit of quantification (LLoQ) of 25 IU/ml and a limit of detection of 9.3 IU/ml. The percentage of participants with HCV RNA levels <25 IU/ml (either TD[u] or TND) and accompanying 95% CIs were reported at TW2, TW4, and TW12 for each treatment arm of the PP Population.
Percentage of Participants Achieving SVR4
SVR4 was defined as HCV RNA <25 IU/mL, either TD(u) or TND, at 4 weeks after the end of all study therapy. The percentage of participants with SVR4 and accompanying 95% CIs were reported for each treatment arm of the PP Population.
Percentage of Participants Achieving SVR24
SVR24 was defined as HCV RNA <25 IU/mL, either TD(u) or TND, at 24 weeks after the end of all study therapy. The percentage of participants with SVR24 and accompanying 95% CIs were reported for each treatment arm of the PP Population.
Full Information
NCT ID
NCT01932762
First Posted
August 27, 2013
Last Updated
January 15, 2021
Sponsor
Merck Sharp & Dohme LLC
1. Study Identification
Unique Protocol Identification Number
NCT01932762
Brief Title
Efficacy and Safety of Combination Grazoprevir (MK-5172) + Elbasvir (MK-8742) + Ribavirin (RBV) in Genotype 2 Hepatitis C Infection (MK-5172-047)
Official Title
A Phase II Clinical Trial to Evaluate the Efficacy and Safety of a Combination Regimen of MK-5172 With/Without MK-8742 and/or Ribavirin (RBV) in Treatment-naive Subjects With Chronic Hepatitis C Genotype 2, 4, 5 and 6 Infection
Study Type
Interventional
2. Study Status
Record Verification Date
January 2021
Overall Recruitment Status
Completed
Study Start Date
October 1, 2013 (Actual)
Primary Completion Date
December 4, 2014 (Actual)
Study Completion Date
December 4, 2014 (Actual)
3. Sponsor/Collaborators
Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Merck Sharp & Dohme LLC
4. Oversight
Data Monitoring Committee
No
5. Study Description
Brief Summary
This is a multi-site, open-label trial evaluating the safety and efficacy of 100 mg of grazoprevir (MK-5172) used in combination with or without 50 mg of elbasvir (MK-8742) and/or ribavirin (RBV) in treating non-cirrhotic treatment-naïve participants with chronic genotype (GT) 2, 4, 5, and 6 hepatitis C infection.
In Part A there is no randomization or stratification; all GT2 participants will be assigned to arm A1. In Part B, all GT2 participants will be assigned to Arm B1 and all participants with GT4, GT5 and GT6 will be randomized in a 1:1 ratio to either Arm 3 or Arm 4 with stratification by genotype.
6. Conditions and Keywords
Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Hepatitis C
7. Study Design
Primary Purpose
Treatment
Study Phase
Phase 2
Interventional Study Model
Parallel Assignment
Masking
None (Open Label)
Allocation
Randomized
Enrollment
98 (Actual)
8. Arms, Groups, and Interventions
Arm Title
GT2: Grazoprevir + Elbasvir + RBV (Arm A1)
Arm Type
Experimental
Arm Description
During Part A of the study, GT2 participants will receive 100 mg grazoprevir + 50 mg elbasvir + standard weight-based dosing of RBV for 12 weeks.
Arm Title
GT2: Grazoprevir + RBV (Arm B1)
Arm Type
Experimental
Arm Description
During Part B of the study, GT2 participants will receive 100 mg grazoprevir + standard weight-based dosing of RBV for 12 weeks.
Arm Title
GT 4,5,6: Grazoprevir + Elbasvir + RBV (Arm B2)
Arm Type
Experimental
Arm Description
During Part B of the study, GT4/GT5/GT6 participants will receive 100 mg grazoprevir + 50 mg elbasvir + standard weight-based dosing of RBV for 12 weeks.
Arm Title
GT 4,5,6: Grazoprevir + Elbasvir (Arm B3)
Arm Type
Experimental
Arm Description
During Part B of the study, GT4/GT5/GT6 participants will receive 100 mg grazoprevir + 50 mg elbasvir for 12 weeks.
Intervention Type
Drug
Intervention Name(s)
Grazoprevir
Other Intervention Name(s)
MK-5172
Intervention Description
100 mg every day (QD) orally
Intervention Type
Drug
Intervention Name(s)
Elbasvir
Other Intervention Name(s)
MK-8742
Intervention Description
50 mg QD orally
Intervention Type
Drug
Intervention Name(s)
Ribavirin
Other Intervention Name(s)
Rebetol™
Intervention Description
Administered twice daily (BID) orally at a total daily dose of 800 mg to 1400 mg based on participant's weight on Day 1
Primary Outcome Measure Information:
Title
Percentage of Participants With Sustained Virologic Response 12 Weeks After The End of Study Therapy (SVR12)
Description
SVR12 was defined as Hepatitis C Virus ribonucleic acid (HCV RNA) <25 IU/mL, either target detected but unquantifiable (TD[u]) or target not detected (TND), at 12 weeks after the end of all study therapy. The percentage of participants with SVR12 and accompanying 95% confidence intervals (CIs) were reported for each treatment arm in the Per-Protocol (PP) Population.
Time Frame
12 weeks after end of all therapy (Study Week 24)
Title
Percentage of Participants With Adverse Events (AEs), Serious AEs (SAEs), Drug-Related AEs, Drug-Related SAEs, or Discontinuation of Study Treatment Due to AE During the Treatment Period and First 14 Follow-up Days
Description
AE was defined as any untoward medical occurrence in a participant administered a pharmaceutical product and which did not necessarily have to have a causal relationship with this treatment. An AE could therefore be any unfavorable and unintended sign, symptom, or disease temporally associated with the use of a medicinal product/protocol-specified procedure, whether or not considered related to the medicinal product/protocol-specified procedure. Any worsening of a preexisting condition temporally associated with the use of the product was also an AE. An SAE was an AE that resulted in death, was life threatening, resulted in persistent or significant disability/incapacity, resulted in or prolonged an existing inpatient hospitalization, was a congenital anomaly/birth defect, was a cancer, was associated with an overdose, was another important medical event. The investigator determined the relationship of the AE to the treatment as unrelated or possibly, probably, or definitely related.
Time Frame
Treatment period plus the first 14 days of follow-up (up to 14 weeks)
Secondary Outcome Measure Information:
Title
Mean Time to First Achievement of Undetectable HCV RNA During Treatment
Description
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 TWs 1, 2, 4, 8, and 12. Undetectable HCV RNA (or TND) was defined as below the 9.3 IU/ml limit of detection. Kaplan Meier summary statistics were calculated for each treatment arm in the Full Analysis Set (FAS).
Time Frame
From TW1 until first achievement of undetectable HCV RNA (up to 12 weeks)
Title
Percentage of Participants Achieving Undetectable HCV RNA During Treatment By Timepoint
Description
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 TWs 1, 2, 4, 8, and 12. Undetectable HCV RNA (or TND) was defined as below the 9.3 IU/ml limit of detection. The percentage of participants achieving undetectable HCV RNA and accompanying 95% CIs were reported at TW2, TW4, and TW12 for each treatment arm of the PP Population.
Time Frame
From TW 2 through TW 12 (up to 12 weeks)
Title
Percentage of Participants Achieving HCV RNA <25 IU/mL During Treatment By Timepoint
Description
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 TWs 1, 2, 4, 8, and 12. The Roche COBAS™ Taqman™ HCV Test (v.2.0) has a lower limit of quantification (LLoQ) of 25 IU/ml and a limit of detection of 9.3 IU/ml. The percentage of participants with HCV RNA levels <25 IU/ml (either TD[u] or TND) and accompanying 95% CIs were reported at TW2, TW4, and TW12 for each treatment arm of the PP Population.
Time Frame
From TW 2 through TW 12 (up to 12 weeks)
Title
Percentage of Participants Achieving SVR4
Description
SVR4 was defined as HCV RNA <25 IU/mL, either TD(u) or TND, at 4 weeks after the end of all study therapy. The percentage of participants with SVR4 and accompanying 95% CIs were reported for each treatment arm of the PP Population.
Time Frame
4 weeks after end of all therapy (Study Week 16)
Title
Percentage of Participants Achieving SVR24
Description
SVR24 was defined as HCV RNA <25 IU/mL, either TD(u) or TND, at 24 weeks after the end of all study therapy. The percentage of participants with SVR24 and accompanying 95% CIs were reported for each treatment arm of the PP Population.
Time Frame
24 weeks after end of all therapy (Study Week 36)
10. Eligibility
Sex
All
Minimum Age & Unit of Time
18 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria:
Parts A and B: -Body weight ≥50 kg (111 lbs) and ≤ 125 kg (275 lbs) -Has absence of cirrhosis -Agrees to use two acceptable methods of birth control from at least 2 weeks prior to Day 1 and continue until at least 6 months after last dose of study drug, or longer if dictated by local regulations (for female participant who is of childbearing potential or male participant with female sexual partner who is of childbearing potential).
Part A only: -Has chronic HCV GT2 infection Part B only: -Has chronic HCV GT2, GT4, GT5, or GT6 infection
Exclusion Criteria:
Parts A and B:
-Is not treatment naïve (participant has had previous treatment with any interferon, RBV, approved or experimental direct acting antiviral(s), or other investigational therapies for HCV) -Is determined to be coinfected with hepatitis B virus (HBsAg positive) or HIV -Has evidence of, or is under evaluation for, hepatocellular carcinoma (HCC) -Has a clinical diagnosis of substance abuse including the following specified drugs within specified timeframes: Alcohol, intravenous drugs, inhalational, psychotropics, narcotics, cocaine use, prescription or over-the-counter drugs (within 1 year of the screening visit), is receiving opiate agonist substitution therapy (within 1 year of screening visit), or excessive historic marijuana use -Has evidence of active or suspected malignancy, or a history of malignancy, within the last 5 years -Female participant who is pregnant, lactating, expecting to conceive or donate eggs, or is of childbearing potential and unwilling to commit to two methods of birth control throughout treatment and after the completion of all treatment, or male participant who is planning to impregnate or provide sperm donation or has a female sexual partner of childbearing potential and is unwilling to commit to using a two methods of birth control throughout treatment and after the completion of all treatment -Has evidence or history of chronic hepatitis not caused by HCV, including but not limited to nonalcoholic steatohepatitis (NASH), drug-induced hepatitis, and autoimmune hepatitis. -Has uncontrolled diabetes (documented HbA1c >8.5%)
Part A only:
-Has non GT2 HCV infection
Part B only:
-Has HCV infection with a genotype other than GT2, GT4, GT5 or GT6
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Medical Director
Organizational Affiliation
Merck Sharp & Dohme LLC
Official's Role
Study Director
12. IPD Sharing Statement
Plan to Share IPD
Yes
IPD Sharing Plan Description
http://engagezone.msd.com/doc/ProcedureAccessClinicalTrialData.pdf
IPD Sharing URL
http://engagezone.msd.com/ds_documentation.php
Citations:
PubMed Identifier
29152828
Citation
Brown A, Hezode C, Zuckerman E, Foster GR, Zekry A, Roberts SK, Lahser F, Durkan C, Badshah C, Zhang B, Robertson M, Wahl J, Barr E, Haber B; C-SCAPE Study Investigators. Efficacy and safety of 12 weeks of elbasvir +/- grazoprevir +/- ribavirin in participants with hepatitis C virus genotype 2, 4, 5 or 6 infection: The C-SCAPE study. J Viral Hepat. 2018 May;25(5):457-464. doi: 10.1111/jvh.12801. Epub 2018 Mar 14.
Results Reference
result
PubMed Identifier
29461687
Citation
Asselah T, Reesink H, Gerstoft J, de Ledinghen V, Pockros PJ, Robertson M, Hwang P, Asante-Appiah E, Wahl J, Nguyen BY, Barr E, Talwani R, Serfaty L. Efficacy of elbasvir and grazoprevir in participants with hepatitis C virus genotype 4 infection: A pooled analysis. Liver Int. 2018 Sep;38(9):1583-1591. doi: 10.1111/liv.13727. Epub 2018 Mar 31.
Results Reference
derived
Learn more about this trial
Efficacy and Safety of Combination Grazoprevir (MK-5172) + Elbasvir (MK-8742) + Ribavirin (RBV) in Genotype 2 Hepatitis C Infection (MK-5172-047)
We'll reach out to this number within 24 hrs