A Phase 2 interventional study of Comparator: Vaniprevir and Comparator: Pegylated-Interferon (Peg-IFN) in Hepatitis C, sponsored by Merck Sharp & Dohme LLC. Completed. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2018-10-09.
Sponsored by Merck Sharp & Dohme LLC · Phase 2, Interventional, and Treatment
A study to evaluate how effective different levels of Vaniprevir (MK-7009), when administered with Pegylated-Interferon (Peg-IFN) and Ribavirin, are at achieving rapid viral response (RVR) i.e., undetectable hepatitis C virus [HCV] viral ribonucleic acid [RNA] at Week 4 in participants with chronic HCV infection. The primary hypothesis was that the proportion of participants in one or more of the Vaniprevir treatment groups achieving RVR would be greater than the proportion of placebo participants achieving RVR when Vaniprevir and placebo were co-administered with Peg-IFN/Ribavirin.
2,321 studies on the registry are indexed under Hepatitis C; 102 are open to participants now.
This study's enrollment of 95 is above the median of 79 across 1,633 interventional studies indexed under Hepatitis C.
Browse Hepatitis C studies →Merck Sharp & Dohme LLC is the lead sponsor of 2,114 studies on the registry; 133 are open to participants now.
Of its 489 completed or terminated interventional studies of FDA-regulated products, 362 (74%) have results posted.
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Exclusion Criteria:
Participants took double-blind Placebo + Peg-IFN/Ribavirin from Week 1 to Week 4, followed by open-label Peg-IFN/Ribavirin from Week 5 to Week 48.
Drug: Comparator: Pegylated-Interferon (Peg-IFN) · Drug: Comparator: Ribavirin
Participants took double-blind Vaniprevir 300 mg twice daily (b.i.d.) + Peg-IFN/Ribavirin from Week 1 to Week 4, followed by open-label Peg-IFN/Ribavirin from Week 5 to Week 48.
Drug: Comparator: Vaniprevir · Drug: Comparator: Pegylated-Interferon (Peg-IFN) · Drug: Comparator: Ribavirin
Participants took double-blind Vaniprevir 600 mg b.i.d. + Peg-IFN/Ribavirin from Week 1 to Week 4, followed by open-label Peg-IFN/Ribavirin from Week 5 to Week 48.
Drug: Comparator: Vaniprevir · Drug: Comparator: Pegylated-Interferon (Peg-IFN) · Drug: Comparator: Ribavirin
Participants took double-blind Vaniprevir 600 mg q.d. + Peg-IFN/Ribavirin from Week 1 to Week 4, followed by open-label Peg-IFN/Ribavirin from Week 5 to Week 48.
Drug: Comparator: Vaniprevir · Drug: Comparator: Pegylated-Interferon (Peg-IFN) · Drug: Comparator: Ribavirin
Participants took double-blind Vaniprevir 800 mg q.d. + Peg-IFN/Ribavirin from Week 1 to Week 4, followed by open-label Peg-IFN/Ribavirin from Week 5 to Week 48.
Drug: Comparator: Vaniprevir · Drug: Comparator: Pegylated-Interferon (Peg-IFN) · Drug: Comparator: Ribavirin · Drug: Comparator: placebo
Vaniprevir 300 mg b.i.d., 600 mg b.i.d., 600 mg q.d., or 800 mg q.d.; duration of treatment: 28 days
Also known as: MK-7009
Peg-IFN 180 mcg once-weekly subcutaneous injection; duration of treatment: 48 weeks
Ribavirin 200 mg tablet b.i.d. (dose based on body weight); duration of treatment: 48 weeks
Matching placebo to vaniprevir; duration of treatment: 28 days
Percentage of Participants Achieving RVR
Rapid Viral Response (RVR) was declared if Hepatitis C Virus (HCV) ribonucleic acid (RNA) was undetectable at Week 4.
Time frame: Week 4
Number of Participants Experiencing an Adverse Event (AE)
The number of participants experiencing AEs in each treatment group was monitored during the Vaniprevir/Placebo treatment (Day 1 to Day 28) and safety follow-up (Day 29 to Day 42) periods.
Time frame: Up to Day 42
Number of Participants Discontinuing From Study Therapy Due to AEs
An AE was defined as any unfavorable and unintended change in the structure, function, or chemistry of the body temporally associated with the use of study therapy, whether or not considered related to the use of the product.
Time frame: Day 1 to Day 28
Number of Participants With ≥2-log10 Decrease in HCV RNA
The number of participants with at least a 2-log10 decrease from baseline in HCV RNA following 4 weeks of treatment with Placebo or Vaniprevir.
Time frame: Baseline and Week 4
Number of Participants With ≥3-log10 Decrease in HCV RNA
The number of participants with at least a 3-log10 decrease from baseline in HCV RNA following 4 weeks of treatment with Placebo or Vaniprevir.
Time frame: Baseline and Week 4
Mean Log Change From Baseline in HCV RNA
The mean changes from baseline in log10 HCV RNA in each vaniprevir group was compared against control treatment at Week 4.
Time frame: Baseline and Week 4
| Milestone | Placebo + Peg-IFN/Ribavirin | Vaniprevir 300 mg b.i.d. + Peg-IFN/Ribavirin | Vaniprevir 600 mg b.i.d. + Peg-IFN/Ribavirin | Vaniprevir 600 mg q.d. + Peg-IFN/Ribavirin | Vaniprevir 800 mg q.d. + Peg-IFN/Ribavirin |
|---|---|---|---|---|---|
| Started | 20 | 18 | 20 | 18 | 19 |
| Treated | 19 | 18 | 20 | 18 | 19 |
| Completed | 19 | 18 | 20 | 18 | 19 |
| Not completed | 1 | 0 | 0 | 0 | 0 |
| Withdrew: Withdrawal by subject | 1 | 0 | 0 | 0 | 0 |
| Milestone | Placebo + Peg-IFN/Ribavirin | Vaniprevir 300 mg b.i.d. + Peg-IFN/Ribavirin | Vaniprevir 600 mg b.i.d. + Peg-IFN/Ribavirin | Vaniprevir 600 mg q.d. + Peg-IFN/Ribavirin | Vaniprevir 800 mg q.d. + Peg-IFN/Ribavirin |
|---|---|---|---|---|---|
| Started | 19 | 18 | 20 | 18 | 19 |
| Completed | 18 | 16 | 16 | 13 | 16 |
| Not completed | 1 | 2 | 4 | 5 | 3 |
| Withdrew: Adverse event | 0 | 0 | 2 | 0 | 1 |
| Withdrew: Lack of efficacy | 0 | 2 | 2 | 2 | 1 |
| Withdrew: Physician decision | 0 | 0 | 0 | 0 | 1 |
| Withdrew: Withdrawal by subject | 1 | 0 | 0 | 3 | 0 |
Rapid Viral Response (RVR) was declared if Hepatitis C Virus (HCV) ribonucleic acid (RNA) was undetectable at Week 4.
| Percentage of Participants | Placebo + Peg-IFN/Ribavirin | Vaniprevir 300 mg b.i.d. + Peg-IFN/Ribavirin | Vaniprevir 600 mg b.i.d. + Peg-IFN/Ribavirin | Vaniprevir 600 mg q.d. + Peg-IFN/Ribavirin | Vaniprevir 800 mg q.d. + Peg-IFN/Ribavirin |
|---|---|---|---|---|---|
| Percentage of Participants Achieving RVR | 5.6 | 75.0 | 78.9 | 68.8 | 83.3 |
The number of participants experiencing AEs in each treatment group was monitored during the Vaniprevir/Placebo treatment (Day 1 to Day 28) and safety follow-up (Day 29 to Day 42) periods.
| Participants | Placebo + Peg-IFN/Ribavirin | Vaniprevir 300 mg b.i.d. + Peg-IFN/Ribavirin | Vaniprevir 600 mg b.i.d. + Peg-IFN/Ribavirin | Vaniprevir 600 mg q.d. + Peg-IFN/Ribavirin | Vaniprevir 800 mg q.d. + Peg-IFN/Ribavirin |
|---|---|---|---|---|---|
| Number of Participants Experiencing an Adverse Event (AE) | 18 | 15 | 18 | 16 | 18 |
An AE was defined as any unfavorable and unintended change in the structure, function, or chemistry of the body temporally associated with the use of study therapy, whether or not considered related to the use of the product.
| Participants | Placebo + Peg-IFN/Ribavirin | Vaniprevir 300 mg b.i.d. + Peg-IFN/Ribavirin | Vaniprevir 600 mg b.i.d. + Peg-IFN/Ribavirin | Vaniprevir 600 mg q.d. + Peg-IFN/Ribavirin | Vaniprevir 800 mg q.d. + Peg-IFN/Ribavirin |
|---|---|---|---|---|---|
| Number of Participants Discontinuing From Study Therapy Due to AEs | 0 | 0 | 0 | 0 | 0 |
The number of participants with at least a 2-log10 decrease from baseline in HCV RNA following 4 weeks of treatment with Placebo or Vaniprevir.
| Number of Participants | Placebo + Peg-IFN/Ribavirin | Vaniprevir 300 mg b.i.d. + Peg-IFN/Ribavirin | Vaniprevir 600 mg b.i.d. + Peg-IFN/Ribavirin | Vaniprevir 600 mg q.d. + Peg-IFN/Ribavirin | Vaniprevir 800 mg q.d. + Peg-IFN/Ribavirin |
|---|---|---|---|---|---|
| Number of Participants With ≥2-log10 Decrease in HCV RNA | 16 | 16 | 19 | 16 | 17 |
The number of participants with at least a 3-log10 decrease from baseline in HCV RNA following 4 weeks of treatment with Placebo or Vaniprevir.
| Number of Participants | Placebo + Peg-IFN/Ribavirin | Vaniprevir 300 mg b.i.d. + Peg-IFN/Ribavirin | Vaniprevir 600 mg b.i.d. + Peg-IFN/Ribavirin | Vaniprevir 600 mg q.d. + Peg-IFN/Ribavirin | Vaniprevir 800 mg q.d. + Peg-IFN/Ribavirin |
|---|---|---|---|---|---|
| Number of Participants With ≥3-log10 Decrease in HCV RNA | 15 | 16 | 19 | 16 | 17 |
The mean changes from baseline in log10 HCV RNA in each vaniprevir group was compared against control treatment at Week 4.
| Log10 IU/mL | Placebo + Peg-IFN/Ribavirin | Vaniprevir 300 mg b.i.d. + Peg-IFN/Ribavirin | Vaniprevir 600 mg b.i.d. + Peg-IFN/Ribavirin | Vaniprevir 600 mg q.d. + Peg-IFN/Ribavirin | Vaniprevir 800 mg q.d. + Peg-IFN/Ribavirin |
|---|---|---|---|---|---|
| Mean Log Change From Baseline in HCV RNA | -3.6 ± 1.3 | -6.1 ± 1.1 | -6.3 ± 0.7 | -6.2 ± 0.6 | -6.3 ± 1.4 |
Collected over AEs were monitored for 18 months in the study, including the Vaniprevir/Placebo + Peg-IFN Ribavirin treatment/follow-up period (Day 1 to Day 42) and subsequent Peg-IFN/Ribavirin treatment/follow-up period (Day 43 to Week 72).. Non-serious events are listed at a 5% frequency threshold.
| Group | Deaths | Serious | Other |
|---|---|---|---|
| Placebo + Peg-IFN/Ribavirin | — | 1/19 (5.3%) | 19/19 (100%) |
| Vaniprevir 300 mg b.i.d. + Peg-IFN/Ribavirin | — | 3/18 (16.7%) | 16/18 (88.9%) |
| Vaniprevir 600 mg b.i.d. + Peg-IFN/Ribavirin | — | 1/20 (5%) | 20/20 (100%) |
| Vaniprevir 600 mg q.d. + Peg-IFN/Ribavirin | — | 2/18 (11.1%) | 17/18 (94.4%) |
| Vaniprevir 800 mg q.d. + Peg-IFN/Ribavirin | — | 2/19 (10.5%) | 18/19 (94.7%) |
| Event | Placebo + Peg-IFN/Ribavirin | Vaniprevir 300 mg b.i.d. + Peg-IFN/Ribavirin | Vaniprevir 600 mg b.i.d. + Peg-IFN/Ribavirin | Vaniprevir 600 mg q.d. + Peg-IFN/Ribavirin | Vaniprevir 800 mg q.d. + Peg-IFN/Ribavirin |
|---|---|---|---|---|---|
| Cholecystitis acuteHepatobiliary disorders | 0/19 | 0/18 | 0/20 | 1/18 | 0/19 |
| AppendicitisInfections and infestations | 0/19 | 1/18 | 0/20 | 0/18 | 0/19 |
| GastroenteritisInfections and infestations | 0/19 | 1/18 | 0/20 | 0/18 | 0/19 |
| Lobar pneumoniaInfections and infestations | 0/19 | 1/18 | 0/20 | 0/18 | 0/19 |
| MyopathyMusculoskeletal and connective tissue disorders | 0/19 | 0/18 | 0/20 | 1/18 | 0/19 |
| Haemoglobin decreasedInvestigations | 0/19 | 0/18 | 0/20 | 0/18 | 1/19 |
| Colon cancerNeoplasms benign, malignant and unspecified (incl cysts and polyps) | 1/19 | 0/18 | 0/20 | 0/18 | 0/19 |
| Confusional statePsychiatric disorders | 0/19 | 0/18 | 0/20 | 0/18 | 1/19 |
| EmpyemaInfections and infestations | 0/19 | 0/18 | 1/20 | 0/18 | 0/19 |
| Septic shockInfections and infestations | 0/19 | 0/18 | 1/20 | 0/18 | 0/19 |
| Event | Placebo + Peg-IFN/Ribavirin | Vaniprevir 300 mg b.i.d. + Peg-IFN/Ribavirin | Vaniprevir 600 mg b.i.d. + Peg-IFN/Ribavirin | Vaniprevir 600 mg q.d. + Peg-IFN/Ribavirin | Vaniprevir 800 mg q.d. + Peg-IFN/Ribavirin |
|---|---|---|---|---|---|
| VomitingGastrointestinal disorders | 0/19 | 0/18 | 9/20 | 4/18 | 3/19 |
| HeadacheNervous system disorders | 7/19 | 4/18 | 9/20 | 8/18 | 5/19 |
| NauseaGastrointestinal disorders | 6/19 | 5/18 | 8/20 | 7/18 | 6/19 |
| FatigueGeneral disorders | 7/19 | 3/18 | 7/20 | 4/18 | 3/19 |
| DiarrhoeaGastrointestinal disorders | 4/19 | 1/18 | 7/20 | 2/18 | 6/19 |
| Dry skinSkin and subcutaneous tissue disorders | 6/19 | 1/18 | 3/20 | 1/18 | 1/19 |
| Decreased appetiteMetabolism and nutrition disorders | 2/19 | 4/18 | 6/20 | 2/18 | 1/19 |
| InsomniaPsychiatric disorders | 2/19 | 4/18 | 4/20 | 5/18 | 2/19 |
| Influenza like illnessGeneral disorders | 4/19 | 4/18 | 4/20 | 4/18 | 5/19 |
| DyspnoeaRespiratory, thoracic and mediastinal disorders | 5/19 | 3/18 | 1/20 | 1/18 | 2/19 |
The baseline population consists of all participants treated with study medication. One participant was randomized to the placebo group but withdrew from the study prior to taking any study medication.
| Age, Continuous(Years) | Placebo + Peg-IFN/Ribavirin | Vaniprevir 300 mg b.i.d. + Peg-IFN/Ribavirin | Vaniprevir 600 mg b.i.d. + Peg-IFN/Ribavirin | Vaniprevir 600 mg q.d. + Peg-IFN/Ribavirin | Vaniprevir 800 mg q.d. + Peg-IFN/Ribavirin | Total |
|---|---|---|---|---|---|---|
| Mean | 47.8 ± 10.1 | 46.7 ± 10.2 | 42.0 ± 10.7 | 50.1 ± 8.4 | 45.1 ± 12.0 | 46.2 ± 10.5 |
| Sex: Female, Male(Participants) | Placebo + Peg-IFN/Ribavirin | Vaniprevir 300 mg b.i.d. + Peg-IFN/Ribavirin | Vaniprevir 600 mg b.i.d. + Peg-IFN/Ribavirin | Vaniprevir 600 mg q.d. + Peg-IFN/Ribavirin | Vaniprevir 800 mg q.d. + Peg-IFN/Ribavirin | Total |
|---|---|---|---|---|---|---|
| Female | 8 | 4 | 9 | 11 | 7 | 39 |
| Male | 11 | 14 | 11 | 7 | 12 | 55 |
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Plan to share: Yes — https://www.merck.com/clinical-trials/pdf/ProcedureAccessClinicalTrialData.pdf
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