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Completed

NCT Number: NCT01498068

Open-Label, Bridging Study of Telaprevir in Treatment-Naïve and Treatment-Experienced Russian Patients With Genotype 1 Chronic Hepatitis C

The purpose of this study is to determine the effectiveness, safety and tolerability of telaprevir administered as 750 mg every 8 hours (q8h) in combination with pegylated interferon (Peg-IFN)-alfa-2a and ribavirin (RBV) in treatment-naïve and treatment-experienced Russian participants with genotype 1 chronic hepatitis C.

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Key information

Conditions

Genotype 1 Chronic Hepatitis C Blood-Borne Infections Communicable Diseases Digestive System Diseases Flaviviridae Infections Hepatitis Hepatitis C Hepatitis, Viral, Human Infections Liver Diseases RNA Virus Infections Virus Diseases

Age range

18 year–70 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 3

Primary location

Moscow, Russia

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About this study

This is an open-label (all persons know the study drug assignment), multicenter study in treatment-naïve (participant did not receive any previous treatment for the treatment of hepatitis C) and treatment-experienced (participant did receive previous treatment for hepatitis C) Russian participants with genotype 1 chronic hepatitis C. After a screening period of approximately 4 weeks, participants will be treated for 12 weeks with telaprevir 750 mg every 8 hours in combination with Peg-IFN-alfa-2a and RBV followed by 12 or 36 weeks of treatment with Peg-IFN-alfa-2a and RBV alone depending on their liver disease status, response to previous treatment and individual virologic response during treatment in this study. After the treatment period, there is a follow-up phase of at least 12 weeks.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Participant has genotype 1 chronic hepatitis C with HCV RNA level >1000 IU/mL
  • Participant is either treatment-naïve and did not receive any previous treatment with any approved or investigational drug or drug regimen for the treatment of hepatitis C, or participant is treatment-experienced who did not achieve sustained virologic response (SVR) 24 weeks after at least 1 prior course of Peg-IFN/RBV therapy (null-responder, partial-responder or viral relapse)
  • Participant must have documentation of liver biopsy or fibroscan within 2 years before the screening visit or agree to have a biopsy or fibroscan within the screening period unless histological cirrhosis was demonstrated by a biopsy or fibroscan > 2 years ago prior to screening
  • A female participant of childbearing potential and a nonvasectomized male participant who has a female partner of childbearing potential must agree to the use of 2 effective methods of birth control from screening until 6 months (female participant ) or 7 months (male participant) after the last dose of RBV

Exclusion criteria

  • Prior non-responder that is classified as a viral breakthrough participant
  • Participant is infected or co-infected with HCV of another genotype than genotype 1
  • Participant has history of decompensated liver disease or shows evidence of significant liver disease in addition to hepatitis C
  • Participant has human immunodeficiency virus (HIV) or hepatitis B virus (HBV) co-infection
  • Participant has active malignant disease or history of malignant disease within the past 5 years (with the exception of treated basal cell carcinoma or hepatocellular carcinoma

Treatment and study plan

Telaprevir

Drug

Telaprevir Type = exact number, unit = mg, number = 750, form = tablet, route = oral. Telaprevir 750 mg (2 oral tablets) is taken every 8 hours for 12 weeks

Pegylated-Interferon-alfa-2a

Drug

Pegylated-interferon-alfa-2a type = exact number, unit = microgram, number = 180, form = injection, route = subcutaneous. 180 microgram (µg) per week, subcutaneous injection, for 24 or 48 weeks

Ribavirin

Drug

Ribavirin Type = exact, number = 1000 or 1200, unit = mg, form = tablet, route = oral. 1000mg (if participant's weight is < 75kg) or 1200mg (if participant's weight is >= 75kg) per day for 24 or 48 weeks.

Primary outcomes

  1. Number of Participants With Extended Rapid Virologic Response (eRVR)

    Time frame: Week 4 and Week 12

    A eRVR is defined as having hepatitis C virus (HCV) ribonucleic acid (RNA) less than 25 IU/mL, (target not detected) at Weeks 4 and 12 of treatment.

Secondary outcomes

  1. Median Change in log10 Hepatitis C Virus (HCV) Ribonucleic Acid (RNA)

    Time frame: Baseline (Week 0), Week 4, Week 8, Week 12, Week 24, Week 32, Week 40, and Week 48

    Changes from baseline in log10 HCV RNA levels were calculated.

  2. Number of Participants With Rapid Virologic Response (RVR) at Week 4

    Time frame: Week 4

    A RVR is defined as having hepatitis C virus (HCV) ribonucleic acid (RNA) less than 25 IU/mL, (target not detected) at Week 4

  3. Number of Participants With Hepatitis C Virus (HCV) Ribonucleic Acid (RNA) Less Than 25 IU/mL, (Target Not Detected) at Weeks 8, 12, 24, 32, 40 and 48

    Time frame: Weeks 8, 12, 24, 32, 40 and 48

    The table below shows number of participants with HCV RNA Less than 25 IU/mL, (target not detected) at Weeks 8, 12, 24, 32, 40 and 48. Only 3 treatment-naive and 14 Treatment-experienced participants were assigned to receive study treatment after Week 24. Only participants still receiving Treatment were assessed at 32, 40, and 48 weeks.

  4. Number of Participants With Virologic Failure

    Time frame: Week 4, Week 8, Week 12, Week 24, Week 32, or Week 40

    Virologic failure is defined as hepatitis C virus (HCV) ribonucleic acid (RNA) levels more than 1,000 IU/mL at Weeks 4, 8, 12, 24, 32, or 40.

  5. Number of Participants in Each Specific Category of Treatment Outcome

    Time frame: From Day 1 (Baseline) up to Follow-up visit (Week 36 or Week 60)

    Participants were evaluated for following 4 categories of treatment outcome;Sustained Virologic Response 12 Weeks After Last Planned Dose of Study Medication(SVR12):hepatitis C virus (HCV)ribonucleic acid (RNA)<25 IU/mL(target not detected)12 weeks after last planned dose of study medication;Relapse:HCV RNA =>25 IU/mL during follow-up period after previous HCV RNA<25 IU/mL at planned end of treatment(EOT)[Week 24 or Week 48] and participant did not achieve SVR12planned;On treatment virologic failure:meeting virologic stopping rule and/or having detectable HCV RNA at EOT with viral breakthrough(having a confirmed increase >1 log 10 in HCV RNA level from the lowest level reached or confirmed value of HCV RNA >100 IU/mL in participants whose HCV RNA has previously become <25 IU/mL during treatment).Stopping rule defined as HCV RNA value >1000 IU/mL at Week 4, 8 or 12 or detectable HCV RNA at Week 24, 32 or 40;Other:HCV RNA <25 IU/mL at actual EOT and never HCV RNA =>25 IU/mL thereafter.

Sponsors and collaborators

Lead sponsor

Janssen-Cilag International NV

Industry

Registry information

Official study title

Open-Label, Bridging Study to Determine Efficacy and Safety of Telaprevir, Pegylated-Interferon-alfa-2a and Ribavirin in Treatment- Naïve and Treatment-Experienced Russian Subjects With Genotype 1 Chronic Hepatitis C

Important dates

Study start
2012
Primary completion
2012
Study completion
2013
First posted
Dec 23, 2011
Registry last updated
Jan 30, 2015

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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