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Hepatitis C, ChronicPhase 3NCT01390844

Safety and Efficacy of Boceprevir in Asia Pacific Participants With Chronic Hepatitis C Genotype 1 (P07063)

A Phase 3 study testing Boceprevir (BOC), Peginterferon alfa-2b (PEG) and Ribavirin (RBV) in people with Hepatitis C, Chronic, run by Merck Sharp & Dohme LLC.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This study will assess the efficacy of boceprevir (BOC) in combination with PegIntron (pegylated interferon alfa-2b) (PEG) and ribavirin (RBV) in response guided therapy compared to the efficacy of standard-of-care therapy alone in adult subjects with chronic hepatitis C (CHC) genotype 1 who failed prior treatment… Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Hepatitis C, Chronic
What is being tested?
Boceprevir (BOC), Peginterferon alfa-2b (PEG) and Ribavirin (RBV)
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
282 participants
Where
No sites listed yet
Study dates
21 Oct 2011to 19 Jun 2015
Phase
Phase 3
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Previously documented CHC genotype 1 infection. Other or mixed genotypes are not eligible.
  • Liver biopsy with histology consistent with CHC and no other etiology.
  • Participants with cirrhosis must have an ultrasound/imaging study within 6 months of screening (or between screening and Day 1) with no findings suspicious for hepatocellular carcinoma
  • Failed previous treatment (of at least 12 weeks) with pegylated interferon (alfa-2a or alfa-2b) plus RBV
  • Weight between 40 kg and 125 kg, inclusive
  • Of 'local' ancestral descent
  • Sexually active males and females of child-bearing potential must agree to use a medically accepted method of contraception

Who cannot join

  • Co-infected with the human immunodeficiency virus (HIV) or hepatitis B virus.
  • Required discontinuation of previous interferon or RBV regimen for an adverse event considered to be possibly or probably related to RBV and/or interferon.
  • Treatment with RBV within 90 days and any interferon-alpha within 1 month prior to screening.
  • Treatment for hepatitis C with any investigational medication or prior treatment with herbal remedies with known hepatotoxicity.
  • Treatment with any investigational drug or participation in any interventional clinical trial within 30 days of the screening visit.
  • Evidence of decompensated liver disease including, but not limited to, a history or presence of clinical ascites, bleeding varices, or hepatic encephalopathy.
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  • Diabetes and/or hypertension with clinically significant ocular examination findings.
  • Any condition the could interfere with participation in and completion of the trial.
  • Evidence of active or suspected malignancy, or history of malignancy within the last 5 years (except adequately treatment carcinoma in situ and basal cell carcinoma of the skin).
  • Pregnant or breast-feeding.

About this study

Official title: Safety and Efficacy of Boceprevir in Combination With Peginterferon Plus Ribavirin for Treatment of Asia Pacific Subjects With Chronic Hepatitis C Genotype 1 Who Failed Prior Treatment With Pegylated Interferon Plus Ribavirin

This study will assess the efficacy of boceprevir (BOC) in combination with PegIntron (pegylated interferon alfa-2b) (PEG) and ribavirin (RBV) in response guided therapy compared to the efficacy of standard-of-care therapy alone in adult subjects with chronic hepatitis C (CHC) genotype 1 who failed prior treatment with pegylated interferon and RBV in the Asia Pacific population. The primary hypothesis is that the proportion of participants achieving sustained virologic response in the experimental therapy regimen (BOC/PEG+RBV) is superior to that in the control arm (Placebo/PEG+RBV), in the Full Analysis Set (FAS) population.

Being tested
Boceprevir (BOC), Placebo to boceprevir, Peginterferon alfa-2b (PEG), Ribavirin (RBV), Cross-Over Boceprevir Treatment
Medical subject headings
Hepatitis C, Chronic

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Boceprevir (BOC)Drug

    Also called SCH 503034, Victrelis

    200 mg capsules, 800 mg three times daily by mouth

  • Placebo to boceprevirDrug

    200 mg placebo capsules, 800 mg three times daily by mouth

  • Peginterferon alfa-2b (PEG)Drug

    Also called PegIntron, SCH 054031, Redipen

    1.5 mcg/kg/week subcutaneously

  • Ribavirin (RBV)Drug

    Also called Rebetol, SCH 018908

    200 mg capsules, weight-based dosing 800 to 1400 mg/day by mouth divided twice daily

  • Cross-Over Boceprevir TreatmentDrug

    Also called SCH 503034, Victrelis

    At Treatment Week 14, participants in the Placebo group with detectable HCV-RNA at Treatment Week 12 have the option to add boceprevir 800 mg three times daily to the PEG + RBV regimen for up to 32 weeks.

Study groups in NCT01390844
Study groupRoleWhat they receive
BoceprevirExperimentalPEG + RBV for 4 weeks followed by BOC + PEG + RBV for 32 weeks. At the Treatment Week 36 visit, participants with undetectable HCV-RNA at Treatment Weeks 8 and 12 will proceed to 36 weeks of post-treatment follow-up. Participants with detectable HCV-RNA at Treatment Week 8 and undetectable HCV-RNA at Treatment Week 12 will continue on BOC + PEG + RBV until Treatment Week 36, receive placebo + PEG + RBV until Treatment Week 48, and then proceed to 24 weeks of post-treatment follow-up. Participants with any HCV-RNA result at Treatment Week 8 and detectable HCV-RNA at Treatment Week 12 will discontinue treatment and proceed to 24 weeks of post-treatment follow-up.
Receives: Drug: Boceprevir (BOC); Drug: Placebo to boceprevir; Drug: Peginterferon alfa-2b (PEG); Drug: Ribavirin (RBV)
ControlActive comparatorPEG + RBV for 4 weeks followed by BOC placebo + PEG + RBV for 44 weeks. Participants with undetectable HCV-RNA at Treatment Week 12 and at subsequent assays will continue on placebo + PEG + RBV through Treatment Week 48 and proceed to 24 weeks of post-treatment follow-up. Participants with detectable HCV-RNA at Treatment Week 12 may roll over to Cross-Over BOC treatment beginning with Treatment Week 14.
Receives: Drug: Placebo to boceprevir; Drug: Peginterferon alfa-2b (PEG); Drug: Ribavirin (RBV); Drug: Cross-Over Boceprevir Treatment

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Percentage of Participants in Korea and Taiwan With Sustained Virologic Response (SVR) at Follow-Up Week 24 - Full Analysis Set (FAS) Population

    SVR is defined as undetectable plasma HCV-RNA at Follow-up Week (FW) 24. If FW24 is missing and other HCV-RNA values after FW24 are available, the last available value would be used for FW24. The last observation carried forward (LOCF) method was used to impute missing values; if a participant is missing at and after FW24 and has FW12 data, then FW12 data will be carried forward to FW24. Cross-over participants are considered as non-responders in SVR.

    Measured: Follow-up Week 24

  2. Percentage of Participants in India With SVR at Follow-Up Week 24 - FAS Population

    SVR is defined as undetectable plasma HCV-RNA at FW24. If FW24 is missing and other HCV-RNA values after FW24 are available, the last available value would be used for FW24. The LOCF method was used to impute missing values; if a participant is missing at and after FW24 and has FW12 data, then FW12 data will be carried forward to FW24. Cross-over participants are considered as non-responders in SVR.

    Measured: Follow-up Week 24

Secondary outcomes (8)
  1. Percentage of Participants in Korea and Taiwan With SVR at Follow-Up Week 24 - Modified Intent-to-Treat (mITT) Population

    SVR is defined as undetectable plasma HCV-RNA at FW24. If FW24 is missing and other HCV-RNA values after FW24 are available, the last available value would be used for FW24. The LOCF method was used to impute missing values; if a participant is missing at and after FW24 and has FW12 data, then FW12 data will be carried forward to FW24. Cross-over participants are considered as non-responders in SVR.

    Measured: Follow-up Week 24

  2. Percentage of Participants in India With SVR at Follow-Up Week 24 - mITT Population

    SVR is defined as undetectable plasma HCV-RNA at FW24. If FW24 is missing and other HCV-RNA values after FW24 are available, the last available value would be used for FW24. The LOCF method was used to impute missing values; if a participant is missing at and after FW24 and has FW12 data, then FW12 data will be carried forward to FW24. Cross-over participants are considered as non-responders in SVR.

    Measured: Follow-up Week 24

  3. Percentage of Participants in Korea and Taiwan Achieving Early Virologic Response (EVR) at Treatment Week 8

    Percentage of participants achieving early virologic response (undetectable HCV-RNA at Treatment Week 8)

    Measured: Treatment Week 8

  4. Percentage of Participants in India Achieving EVR at Treatment Week 8

    Percentage of participants achieving early virologic response (undetectable HCV-RNA at Treatment Week 8)

    Measured: Treatment Week 8

  5. Percentage of Participants With an Adverse Event (AE) of Anemia in Korea and Taiwan

    Anemia is a condition in which the number of red blood cells or hemoglobin concentration is insufficient to meet the body's physiologic needs. This measure gives the percentage of participants who experienced an occurrence of modified World Health Organization (WHO) grade 1-4 anemia during the treatment period. A higher grade indicates a higher degree of anemia. This table summarizes the worst category observed within the period per participant per laboratory test (i.e., the lowest value for the hemotologic parameters).

    Measured: Up to 96 weeks

  6. Percentage of Participants With an AE of Anemia in India

    Anemia is a condition in which the number of red blood cells (hemoglobin) is insufficient to meet the body's physiologic needs. This measure gives the percentage of participants who experienced an occurrence of modified WHO grade 1-4 anemia during the treatment period. A higher grade indicates a higher degree of anemia. This table summarizes the worst category observed within the period per participant per laboratory test (i.e., the lowest value for the hemotologic parameters).

    Measured: Up to 96 weeks

  7. Percentage of Participants With an AE of Neutropenia in Korea and Taiwan

    Neutropenia is an abnormally low level of white blood cells (neutrophils). This measure gives the percentage of participants who experienced an occurrence of modified WHO grade 1-4 neutropenia during the treatment phase. A higher grade indicates a higher degree of neutropenia. This table summarizes the worst category observed within the period for each participant.

    Measured: Up to 96 weeks

  8. Percentage of Participants With an AE of Neutropenia in India

    Neutropenia is an abnormally low level of white blood cells (neutrophils). This measure gives the percentage of participants who experienced an occurrence of modified WHO grade 1-4 neutropenia during the treatment phase. A higher grade indicates a higher degree of neutropenia. This table summarizes the worst category observed within the period for each participant.

    Measured: Up to 96 weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted11 Jul 2011 (estimated)
  2. Study start21 Oct 2011
  3. Primary completion19 Jun 2015
  4. Study completion19 Jun 2015

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Triple blind
Who is masked
Participant, Investigator, Outcomes assessor
Enrolment
282 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01390844
Sponsor's protocol ID
P07063
Other IDs
2007-005151-42, 3034-033, CTRI/2012/04/002540
Status last verified
Aug 2018
First submitted
7 Jul 2011
Last updated
11 Sep 2018
Data monitoring committee
No
Individual data sharing
Yes: https://www.merck.com/clinical-trials/pdf/ProcedureAccessClinicalTrialData.pdf

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Boceprevir (BOC), Peginterferon alfa-2b (PEG) and Ribavirin (RBV) in people with Hepatitis C, Chronic, run by Merck Sharp & Dohme LLC.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 7 inclusion and 10 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 11 Sep 2018. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 28 Jun 2016). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Percentage of Participants in Korea and Taiwan With Sustained Virologic Response (SVR) at Follow-Up Week 24 - Full Analysis Set (FAS) Population (time frame: Follow-up Week 24). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 11 Sep 2018.

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