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Chronic Hepatitis CPhase 3NCT01641666

Safety and Tolerability of Boceprevir in Combination With Peginterferon Alfa-2b Plus Ribavirin for the Treatment of Vietnamese Subjects With Chronic Hepatitis C Genotype 1 (P08599)

A Phase 3 study testing Boceprevir, Peginterferon Alfa-2b 1.5 mcg/kg/week and Ribavirin in people with Chronic Hepatitis C, run by Merck Sharp & Dohme LLC.

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
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Trial summary

This study is designed to assess the safety and tolerability of boceprevir dosed 800 mg three times daily (TID) orally (PO) in combination with Peginterferon alfa-2b (PEG2b) 1.5 mcg/kg once a week (QW) administered subcutaneously (SC) plus ribavirin (RBV) (800 to 1400 mg/day) PO in Response Guided Therapy (RGT) in… Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Chronic Hepatitis C
What is being tested?
Boceprevir, Peginterferon Alfa-2b 1.5 mcg/kg/week and Ribavirin
Could I receive a placebo?
No, everyone receives an active treatment
How many people
0 participants
Where
No sites listed yet
Study dates
May 2014to Sep 2016
Phase
Phase 3
Are there results?
None posted in the registry

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

  • Weight ≥ 40 kg to ≤ 125 kg
  • Sexually active male participants and female participants of child-bearing potential must agree to use a medically acceptable form of contraception
  • Must have documented Chronic Hepatitis C Genotype 1 infection
  • Must have failed prior treatment with interferon plus ribavirin
  • Must have completed treatment with interferon plus ribavirin for at least 12 weeks
  • Must have had a liver biopsy or Fibroscan to determine status as cirrhotic or non-cirrhotic
  • Participants with cirrhosis must have had an ultrasound or imaging study within 6 months of the Screening visit

Who cannot join

  • Known co-infection with the human immunodeficiency virus (HIV) or the hepatitis B virus
  • Prior discontinuation of treatment with interferon or ribavirin due to the occurrence of an adverse event(s) considered by the investigator to be possibly or probably related to the treatment
  • Treatment with ribavirin within 90 days and any interferon within 1 month of the Screening visit
  • Treatment with any investigational drug within 30 days prior to the Screening visit
  • Treatment with midazolam, pimozide, amiodarone, flecainide, propafenone, quinidine, or ergot derivatives within 2 weeks prior to the Day 1 visit
  • Participation in any investigational trial within 30 days of the Screening visit
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  • Evidence of decompensated liver disease
  • Child Pugh score > 6 (Class B and C)
  • Diabetic and/or hypertensive participants with clinically significant ocular examination findings
  • Pre-existing psychiatric conditions
  • Clinical diagnosis of substance abuse
  • Active or suspected malignancy
  • Pregnant or nursing

About this study

Official title: An Open-Label Study to Assess the Safety and Tolerability of Boceprevir in Combination With Peginterferon Alfa-2b Plus Ribavirin for Treatment of Vietnamese Subjects With Chronic Hepatitis C Genotype 1 Who Failed Prior Treatment With Any Interferon Plus Ribavirin in Vietnam

This study is designed to assess the safety and tolerability of boceprevir dosed 800 mg three times daily (TID) orally (PO) in combination with Peginterferon alfa-2b (PEG2b) 1.5 mcg/kg once a week (QW) administered subcutaneously (SC) plus ribavirin (RBV) (800 to 1400 mg/day) PO in Response Guided Therapy (RGT) in adult Vietnamese subjects with Chronic Hepatitis C, Genotype 1 (CHC GT1) who failed prior treatment with any interferon and ribavirin in Vietnam.

Read the detailed description

Each participant will participate in the trial for a maximum of 80 weeks from the time the participant signs the Informed Consent Form (ICF) through the final contact. After a Screening phase of approximately 4 to 8 weeks, each participant will receive treatment for approximately 36-48 weeks depending on response at Treatment Week 8.

A 4-week lead-in period with PEG2b plus RBV will be followed by 32 weeks boceprevir plus PEG2b/RBV. At treatment Week 36 participants will be assigned to the following treatments depending on the virologic response at Week 8 and cirrhotic status:

  1. For non-cirrhotic participants with undetectable hepatitis C virus (HCV)-RNA on Week 8, all treatment will be discontinued at Week 36.
  2. For non-cirrhotic participants with detectable HCV-RNA on Week 8, only boceprevir treatment will be discontinued at Week 36 and PEG2b and RBV treatment will continue to Week 48.
  3. For cirrhotic participants, the boceprevir plus PEG2b/RBV treatment will continue to Week 48.

The study has a futility rule at Week 12 at which point all subjects with detectable HCV-RNA levels will be discontinued. All participants will have a post-treatment follow-up period of at least 24 weeks.

Being tested
Boceprevir, Peginterferon Alfa-2b 1.5 mcg/kg/week, Ribavirin
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.

  • BoceprevirDrug

    Also called SCH 503034

    Boceprevir will be dosed orally at a dose of 800 mg three times daily (TID) for a total daily dose of 2400 mg.

  • Peginterferon Alfa-2b 1.5 mcg/kg/weekDrug

    Also called Pegintron®, Rebetol®

    Peginterferon alpha-2b will be administered subcutaneously at a dose of 1.5 mcg/kg each week.

  • RibavirinDrug

    Also called Rebetol®, Pegintron®

    Ribavirin will be administered orally at a dose of 800 mg/day to 1400 mg/day in two divided daily doses (BID).

Study groups in NCT01641666
Study groupRoleWhat they receive
Peg2b + Ribavirin + BoceprevirExperimentalPeginterferon alpha-2b (Peg2b) plus ribavirin (RBV) starting on Day 1 and boceprevir starting on Week 5
Receives: Drug: Boceprevir; Drug: Peginterferon Alfa-2b 1.5 mcg/kg/week; Drug: Ribavirin

What is being measured

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

  1. Percentage of Participants Achieving Sustained Virologic Response (SVR)

    Measured: Follow-Up Week 24

  2. Percentage of Participants Experiencing a Serious Adverse Event (SAE) During the Study Therapy Period

    Measured: Treatment Week 1 to Treatment Week 24

Timeline

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

  1. First posted17 Jul 2012 (estimated)
  2. Study startMay 2014
  3. Primary completionSep 2016 (estimated)
  4. Study completionSep 2016 (estimated)

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
Non-randomised
Intervention model
Single group
Masking
None (open label)
Enrolment
0 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01641666
Sponsor's protocol ID
P08599
Status last verified
Sep 2015
First submitted
11 Jul 2012
Last updated
9 Sep 2015
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Boceprevir, Peginterferon Alfa-2b 1.5 mcg/kg/week and Ribavirin in people with Chronic Hepatitis C, 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 13 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: withdrawn, as of the sponsor's last update on 9 Sep 2015. 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?

The study was withdrawn before enrolling participants, so there are no results.

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 Achieving Sustained Virologic Response (SVR) (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 9 Sep 2015.

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