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CompletedNCT01585584LeeG3Updated Sep 21, 2015Results posted

Triple-Therapy in Patients With HCV Genotype 3 Who Previously Failed Treatment

A Phase 3 interventional study of Boceprevir in Hepatitis C, sponsored by University of Calgary. Completed at 1 site in Canada. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2015-09-21.

Sponsored by University of Calgary · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
11
Allocation
Not applicable
Ages
18 Years to 65 Years
Sex
All
01

Study summary

The purpose of this study is to test the potential antiviral efficacy of triple-combination therapy with Peginterferon α-2b + ribavirin + boceprevir (PRB) in patients with HCV genotype 3 who previously failed Peginterferon α + ribavirin (non-responders or relapsers).

Read the detailed description

i) Obtain preliminary information on the association between important baseline and on-treatment factors and SVR in this patient population. Variables to be examined may include gender, age, advanced fibrosis or cirrhosis (F3 or F4 estimated by Fibroscan), baseline viral load, RVR, wk 8 viral load, end-of-treatment viral response.

ii) Evaluate adverse events. iii) Evaluate viral resistance.

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Conditions studied

  • Hepatitis C

Keywords

  • Boceprevir
  • Hepatitis C Genotype 3
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In context

Hepatitis C

2,321 studies on the registry are indexed under Hepatitis C; 102 are open to participants now.

This study's enrollment of 11 is below the median of 79 across 1,633 interventional studies indexed under Hepatitis C.

Browse Hepatitis C studies →

Lead sponsor

University of Calgary is the lead sponsor of 686 studies on the registry; 189 are open to participants now.

Of its 10 completed or terminated interventional studies of FDA-regulated products, 2 (20%) have results posted.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Subjects will be eligible for the study if they meet the following inclusion criteria:

    1. 18 years of age or older
    2. Infected with HCV genotype 3 (mixed genotypes are NOT permitted)
    3. Have received at least 12 weeks of previous treatment with peginterferon-α + ribavirin
    4. Detectable serum HCV-RNA
    5. No significant co-morbid conditions
    6. Liver biopsy is not necessary
    7. Cirrhotic patients will be eligible to participate if Child-Pugh class A (maximum 15% of subjects)

Exclusion criteria

Exclusion Criteria:

  • Subjects will be excluded from participation in this study if the following conditions are present:

    1. Significant comorbidities: uncontrolled psychiatric conditions including severe depression, cardiovascular, respiratory, renal or metabolic conditions, active carcinoma.
    2. Active substance abuse within the past 12 months
    3. Co-infection with hepatitis B or HIV
    4. Decompensated cirrhosis (Child-Pugh class B or C)
    5. Significant cytopenia - any of the following: platelets \<80 x 109/L, neutropenia \<1.2 x 103/L, Hb \<120 g/l for men or 110 g/l for women
    6. Lack of informed consent
    7. Previous null-responders (\<2 log10 decrease at week 12 with previous PR therapy)
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Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
11 participants (actual)

Study arms

  • Experimental
    Boceprevir

    Drug: Boceprevir

Interventions

  • DrugBoceprevir

    All patients will receive a 4-week lead-in with Peginterferon and Ribavirin therapy, followed by 24 weeks of Pegetron 1.5microg/kg + weight-based ribavirin + boceprevir 800mg tid. HCV RNA (Cobas TaqMan) will be measured at baseline and at treatment weeks 4, 6,8,12,16,20,24 and 28, and post-treatment weeks 12 and 24 (to obtain SVR-12 and SVR-24 results).

    Also known as: VICTRELIS™, boceprevir capsules, 200 mg, Hepatitis C Virus (HCV) Protease Inhibitor

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What researchers measure

Primary outcomes

  1. Sustained Virologic Response (SVR) at 24 Weeks Post Treatment

    Sustained Virologic Response (SVR) is evaluated 24 weeks after end of treatment and defined as undetectable plasma HCV-RNA at follow up week 24. HCV RNA is measured using Cobas TaqMan.Of the 6 subjects who completed the treatment, 3 obtained SVR at 24 weeks post treatment.

    Time frame: 24 weeks after treatment

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Results

Posted Sep 21, 2015
Limitations and caveats
Small sample size (n=11)

Participant flow

It was hoped that 21 patients with chronic HCV genotype 3 who had failed to achieve an SVR with a standard course of treatment with Peginterferon α + ribavirin (PR) would be selected from the University of Calgary Liver Unit (UCLU) database. 11 patients were able to be enrolled in the study.The last patient completed the study in December 2014.

Participant flow — Overall Study
MilestoneVictrelis Triple
Started10
Completed6
Not completed4
Withdrew: Lack of efficacy1
Withdrew: Withdrawal by subject1
Withdrew: Physician decision2

Outcome measures

PrimarySustained Virologic Response (SVR) at 24 Weeks Post Treatment

Sustained Virologic Response (SVR) is evaluated 24 weeks after end of treatment and defined as undetectable plasma HCV-RNA at follow up week 24. HCV RNA is measured using Cobas TaqMan.Of the 6 subjects who completed the treatment, 3 obtained SVR at 24 weeks post treatment.

Time frame:
24 weeks after treatment
Reported as:
Number · participants
Sustained Virologic Response (SVR) at 24 Weeks Post Treatment
participantsVictrelis Triple
Subjects who completed treatment6
Subjects who obtained SVR 243

Adverse events

Collected over 52 weeks. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Victrelis Triple—2/10 (20%)10/10 (100%)
Most frequent serious events
Most frequent serious events
EventVictrelis Triple
Emergency room visit due to suspected celulitisInfections and infestations1/10
Pregnancy in spouseReproductive system and breast disorders1/10
Most frequent other events
Showing 10 of 80
Most frequent other events
EventVictrelis Triple
InsomniaGeneral disorders10/10
AnemiaBlood and lymphatic system disorders9/10
Local injection site reactionsSkin and subcutaneous tissue disorders9/10
Muscle painMusculoskeletal and connective tissue disorders9/10
ChillsGeneral disorders8/10
DysgeusiaGastrointestinal disorders8/10
FatigueGeneral disorders8/10
LeukopeniaBlood and lymphatic system disorders8/10
NeutropeniaBlood and lymphatic system disorders8/10
ThrombocytopeniaBlood and lymphatic system disorders8/10

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)Victrelis Triple
<=18 years0
Between 18 and 65 years10
>=65 years0
Age, Continuous
Age, Continuous(years)Victrelis Triple
Mean53.3 ± 6.945
Sex: Female, Male
Sex: Female, Male(Participants)Victrelis Triple
Female0
Male10
Region of Enrollment
Region of Enrollment(participants)Victrelis Triple
Canada10
08

Study locations

1 site
  • University of Calgary Liver Unit
    Calgary, Alberta T2N 4Z6, Canada
09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 21, 2015, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT01585584
Lead sponsor
University of Calgary
Collaborators
Merck Sharp & Dohme LLC
Responsible party
Sam Lee (Hepatologist, University of Calgary) — Principal investigator
First posted
Apr 26, 2012
Start date
May 2012
Primary completion
Dec 2014
Completion
Jul 2015
Results posted
Sep 21, 2015
Last update
Sep 21, 2015

Study contacts

Samuel Lee, MD
principal investigator · University of Calgary

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Aug 2015. You cannot join it, but the record below documents what was studied.

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