A Phase 2b, Safety and Efficacy Study of Boceprevir in Patients Coinfected With HIV and Hepatitis C (P05411 AM4)

March 9, 2017 updated by: Merck Sharp & Dohme LLC

A Phase 2b, Safety and Efficacy Study of Boceprevir in Patients Coinfected With HIV and Hepatitis C (Protocol No. P05411)

The primary objective of this trial is to compare the efficacy of boceprevir (SCH 503034) 800 mg three times a day (TID) orally (PO) in combination with peginterferon alfa-2b (PegIFN-2b) 1.5 µg/kg weekly (QW) subcutaneously (SC) plus weight-based dosing (WBD) of ribavirin (RBV) (600 mg/day to 1400 mg/day) PO to therapy with PegIFN-2b + RBV alone in adult participants coinfected with human immunodeficiency virus (HIV) and previously untreated chronic hepatitis C virus (HCV) genotype 1.

Boceprevir is a potent, orally administered, novel serine protease inhibitor, specifically designed to inhibit the HCV nonstructural protein 3 (NS3) protease and, thereby, inhibit viral replication in HCV-infected host cells. The mechanism of inhibition represents a new mechanism of action compared to both interferon alfa and ribavirin. Based on previous experience with PegIFN-2b and RBV in combination with boceprevir in the HCV-monoinfected population, this combination treatment is expected to provide significant benefit to the HIV/HCV coinfected population. Given the high unmet medical need of these participants and the benefit of the addition of boceprevir to PegIFN-2b/RBV, it is important to demonstrate the safety and efficacy of boceprevir in combination with PegIFN-2b/RBV in participants coinfected with HIV/HCV.

This is a randomized, multi-center trial, double-blinded for boceprevir or placebo in combination with open-label PegIFN-2b/RBV in participants coinfected with HIV and previously untreated chronic HCV (genotype 1), to be conducted in conformance with Good Clinical Practice (GCP). This trial consists of two arms, one control arm (Arm 1) and one experimental arm (Arm 2). Participants in the control arm (Arm 1) may receive boceprevir/PegIFN-2b/RBV via a crossover arm.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
99

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • >=18 and <=65 years of age
  • Body weight >=40 and <=125 kg
  • Documented history of HIV infection for greater than 6 months prior to Day 1
  • On an optimized anti-retroviral treatment regimen (OTR) with stable HIV disease with CD4 >=200 cells/µL and HIV-1 RNA viral load <50 copies/mL
  • Documented chronic hepatitis C (CHC) genotype 1 infection (greater than 6 months prior to Day 1)
  • Use of acceptable methods of contraception 2 weeks prior to Day 1 and at least 6 months or longer after treatment
  • Liver biopsy with histology consistent with CHC and no other etiology

Exclusion Criteria:

  • Participants who received prior treatment for hepatitis C other than herbal remedies except those with known hepatotoxicity
  • Coinfected with hepatitis B virus (Hepatitis B surface antigen (HBsAg) positive) and/or demonstrating signs and symptoms consistent with concomitant infection
  • Evidence of decompensated liver disease
  • Participants who have changed their anti-retroviral regimen within the last 3 months prior to Day 1 or had first initiated anti-retroviral therapy within the last 6 months prior to Day 1
  • Use of certain HIV medications will not be allowed. Medications will be reviewed by the Investigator
  • History of clinically significant opportunistic infections (except oral thrush) within the last year prior to Day 1
  • Current evidence of substance abuse within 3 years of the Screening Visit
  • History of a clinical diagnosis within the past 6 months of substance abuse prior to Day 1
  • Participants receiving opiate agonist substitution therapy but not enrolled in an opiate substitution maintenance program
  • History of marijuana use deemed excessive by the Investigator
  • Infected with HIV-2
  • Use of any HIV protease inhibitor without the coadministration of ritonavir within one month of Day 1 and throughout the period of the trial
  • Participants receiving any of the following medication(s) within 2 weeks prior to the Day 1 visit: alfuzosin, antiarrhythmics (amiodarone, bepridil, flecainide, propafenone, and quinidine), ergot derivatives, cisapride, lovastatin, simvastatin, pimozide, triazolam, and orally administered midazolam.

Key Laboratory Exclusion Criteria:

  • Hematologic, biochemical, and serologic criteria (growth factors may not be used to achieve trial entry requirements):

    • Hemoglobin <11 g/dL for females and <12 g/dL for males
    • Neutrophils <1500/mm^3 (blacks/African-Americans: <1200/mm^3)
    • Platelets <100,000/mm^3
    • Direct bilirubin >1.5 x ULN (upper limit of normal) of the laboratory reference range. Total bilirubin >1.6 mg/dL unless history of Gilbert's disease or antiretroviral regimen contains atazanavir. If Gilbert's disease is the proposed etiology, this must be documented in the participant's chart

  • Alpha fetoprotein (AFP):

    • AFP >100 ng/mL OR
    • AFP 50 to 100 ng/mL (requires a liver ultrasound and participants with findings suspicious for hepatocellular carcinoma are excluded)

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Triple

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Placebo Comparator: PegIFN-2b + RBV
PegIFN-2b (1.5 µg/kg/week subcutaneously) plus RBV (600-1400 mg/day, orally, divided into two daily doses) for 4 weeks followed by placebo to boceprevir plus PegIFN-2b/RBV for 44 weeks with 24 weeks post-treatment follow-up (Control Arm). Participants who do not achieve HCV-RNA <9.3 IU/mL by Treatment Week 24 (TW24) are eligible to cross-over and receive boceprevir along with the PegIFN-2b and RBV for up to 44 weeks.
Drug: PegIFN-2b
PegIFN-2b (1.5 μg/kg/week subcutaneously)
Other Names:
  • SCH 054031
  • MK-4031
  • Peginterferon alfa-2b
  • Pegylated interferon alfa-2b
Drug: RBV
Ribavirin (600-1400 mg/day, orally, divided into two daily doses)
Other Names:
  • Ribavirin
Drug: Placebo to Boceprevir
Placebo to boceprevir (orally, three times per day)
Active Comparator: PegIFN-2b + RBV + Boceprevir
PegIFN-2b (1.5 µg/kg/week subcutaneously) plus RBV (600- 1400 mg/day, orally, divided into two daily doses) for 4 weeks followed by boceprevir (800 mg, orally, 3 times per day) plus PegIFN-2b/RBV for 44 weeks with 24 weeks post-treatment follow-up.
Drug: PegIFN-2b
PegIFN-2b (1.5 μg/kg/week subcutaneously)
Other Names:
  • SCH 054031
  • MK-4031
  • Peginterferon alfa-2b
  • Pegylated interferon alfa-2b
Drug: RBV
Ribavirin (600-1400 mg/day, orally, divided into two daily doses)
Other Names:
  • Ribavirin
Drug: Boceprevir
Boceprevir (800 mg, orally, three times per day)
Other Names:
  • SCH 503034
  • Victrelis
  • MK-3034

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Percentage of Participants Achieving Sustained Viral Response (SVR) at Follow-up Week 24 (FW24) Among Randomized Participants Who Received At Least One Dose of Trial Medication
Time Frame: Up to Week 72
SVR24 is defined as undetectable plasma hepatitis C virus ribonucleic acid (HCV-RNA) at 24 weeks after the end of all study treatment. If there was no value in the FW24 visit window, the closest value available chronologically after this window was used; if a value was still missing after that, the value from Follow-up Week 12 (FW12) was used. HCV-RNA is detected by a nucleic acid amplification test and the lower limit of detection for this assay is 9.3 IU/mL.
Up to Week 72

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Percentage of Participants Achieving SVR24 Among Randomized Participants Who Received At Least One Dose of Boceprevir (Experimental) or Placebo (Control)
Time Frame: Up to Week 72
SVR24 is defined as undetectable plasma HCV-RNA 24 weeks after the end of all study treatment. If there was no value in the FW24 visit window, the closest value available chronologically after this window was used; if a value was still missing after that, the value from FW12 was used. HCV-RNA is detected by a nucleic acid amplification test and the lower limit of detection for this assay is 9.3 IU/mL.
Up to Week 72
Percentage of Participants With Early Virologic Response (EVR) Who Achieved SVR24
Time Frame: Up to Week 12
EVR was defined as undetectable HCV-RNA at Treatment Week (TW) 2, 4, 8, or 12. HCV-RNA was detected by a nucleic acid amplification test and the lower limit of detection for this assay is 9.3 IU/mL.
Up to Week 12
Percentage of Participants With Undetectable HCV-RNA at Follow-up Week 12 (FW12)
Time Frame: Up to Week 60
The virologic response at FW12 was considered SVR12 with an additional rule for handling missing data: participants with missing HCV-RNA assessment at FW12 but having non-missing, undetectable HCV-RNA assessments at both FW4 and FW24, were assumed to be responders for SVR12. HCV-RNA was detected by a nucleic acid amplification test and the lower limit of detection for this assay is 9.3 IU/mL.
Up to Week 60
Change From Baseline in log10 HCV-RNA at Treatment Week 4 (TW4)
Time Frame: Baseline and Week 4
This is a measure of the change in the amount of HCV-RNA in the plasma at the end of 4 weeks of treatment. HCV-RNA was detected by a nucleic acid amplification test and the lower limit of detection for this assay is 9.3 IU/mL.
Baseline and Week 4
Percentage of Participants With HCV Virologic Breakthrough or Incomplete Virologic Response/Rebound
Time Frame: Up to Week 72
Virologic breakthrough is defined as achieving undetectable HCV-RNA and subsequently having an HCV-RNA level of >1000 IU/mL. Incomplete Virologic Response/Rebound is defined as having a one log10 increase in HCV-RNA from the participant's nadir, with an HCV-RNA >1000 IU/mL. HCV-RNA was detected by a nucleic acid amplification test and the lower limit of detection for this assay is 9.3 IU/mL.
Up to Week 72

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Merck Sharp & Dohme LLC

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
November 1, 2009

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
May 1, 2012

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
October 1, 2012

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
July 29, 2009

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 14, 2009

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
August 17, 2009

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
April 7, 2017

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 9, 2017

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
March 1, 2017

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • P05411
  • MK-3034-025 (Other Identifier: Merck study number)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

http://www.merck.com/clinical-trials/pdf/Merck%20Procedure%20on%20Clinical%20Trial%20Data%20Access%20Final_Updated%20July_9_2014.pdf

http://engagezone.msd.com/ds_documentation.php

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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