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An Open Label Study of the Effect of Telaprevir in Combination With Ribavirin and Peginterferon on HCV Infection in Stable Liver Transplant Patients

1 de junho de 2015 atualizado por: Vertex Pharmaceuticals Incorporated

A 2-Part, Open Label Study of Telaprevir in Combination With Peginterferon Alfa-2a (Pegasys®) and Ribavirin (Copegus®) in Subjects Chronically Infected With Genotype 1 Hepatitis C Virus Following Liver Transplantation

To assess efficacy of telaprevir, pegylated interferon alfa-2a (Peg-IFN-alfa-2a), and ribavirin (RBV) for hepatitis C virus (HCV) in a 48-week total treatment duration regimen following liver transplantation.

Visão geral do estudo

Status

Rescindido

Condições

Intervenção / Tratamento

Tipo de estudo

Intervencional

Inscrição (Real)

61

Estágio

  • Fase 2

Contactos e Locais

Esta seção fornece os detalhes de contato para aqueles que conduzem o estudo e informações sobre onde este estudo está sendo realizado.

Locais de estudo

  • Canadá
    • Alberta
      • Calgary, Alberta, Canadá
    • British Columbia
      • Vancouver, British Columbia, Canadá
  • Estados Unidos
    • Alabama
      • Birmingham, Alabama, Estados Unidos
        • Alabama
    • Arizona
      • Phoenix, Arizona, Estados Unidos
        • Arizona
    • California
      • Los Angeles, California, Estados Unidos
        • California
    • Colorado
      • Denver, Colorado, Estados Unidos
        • Colorado
    • Florida
      • Bradenton, Florida, Estados Unidos
        • Florida
      • Miami, Florida, Estados Unidos
        • Florida
    • Illinois
      • Evanston, Illinois, Estados Unidos
        • Illinios
    • Indiana
      • Indianapolis, Indiana, Estados Unidos
        • Indiana
    • Massachusetts
      • Burlington, Massachusetts, Estados Unidos
        • Massachusetts
    • Michigan
      • Ann Arbor, Michigan, Estados Unidos
        • Michigan
      • Detroit, Michigan, Estados Unidos
        • Michigan
    • Missouri
      • St Louis, Missouri, Estados Unidos
        • Missouri
    • Nebraska
      • Omaha, Nebraska, Estados Unidos
        • Nebraska
    • New York
      • New York, New York, Estados Unidos
        • New York
      • Rochester, New York, Estados Unidos
        • New York
    • North Carolina
      • Charlotte, North Carolina, Estados Unidos
        • North Carolina
    • Ohio
      • Cleveland, Ohio, Estados Unidos
        • Ohio
    • Pennsylvania
      • Philadelphia, Pennsylvania, Estados Unidos
        • Pennsylvania
    • Texas
      • Dallas, Texas, Estados Unidos
        • Texas
      • Houston, Texas, Estados Unidos
        • Texas

Critérios de participação

Os pesquisadores procuram pessoas que se encaixem em uma determinada descrição, chamada de critérios de elegibilidade. Alguns exemplos desses critérios são a condição geral de saúde de uma pessoa ou tratamentos anteriores.

Critérios de elegibilidade

Idades elegíveis para estudo

18 anos a 65 anos (Adulto, Adulto mais velho)

Aceita Voluntários Saudáveis

Não

Gêneros Elegíveis para o Estudo

Tudo

Descrição

Inclusion Criteria:

  • Male and female participants between the ages of 18 and 65 years
  • History of orthotopic liver transplantation less than 10 years before the Screening visit but no sooner than 6 months before Day 1
  • Taking a stable immunosuppressant regimen based on either tacrolimus or cyclosporine without substantial dose changes over the past 3 months
  • Naive to pegylated interferon/ribavirin treatment or experienced with pegylated interferon/ribavirin prior to transplantation with relapse, partial, or null response

Exclusion Criteria:

  • Documented cirrhosis after liver transplantation
  • Ascites or hepatic encephalopathy within 6 months before Screening
  • Retransplantation for recurrent hepatitis C
  • Treatment for hepatitis C post liver transplantation
  • History within the past 3 months of: rejection within 3 months or greater than (>) 1 rejection within 12 months
  • Current treatment with sirolimus or methylprednisolone. Low dose prednisone use (<5 milligram per day) is permitted
  • History within 3 months of any bacterial infection requiring >1 week of intravenous antibiotics, cytomegalovirus viremia or cytomegalovirus infection with end-organ involvement, fungal disease (except cutaneous and mild oral thrush)
  • History of post transplant lymphoproliferative disease
  • Acceptable laboratory values at Screening as specified in the protocol
  • Positive for human immunodeficiency virus 1/2 (HIV1/2) enzyme immunoassay (EIA) antibody screen or Hepatitis B deoxyribonucleic acid (DNA) or Hepatitis B surface antigen
  • History of hepatocellular carcinoma with high risk of recurrence
  • Any other cause of liver disease deemed clinically significant by the investigator in addition to hepatitis C
  • Autoimmune-mediated disease
  • History of acute pancreatitis within 5 years before the Screening visit
  • Prior treatment with an hepatitis C virus (HCV) protease inhibitor

Plano de estudo

Esta seção fornece detalhes do plano de estudo, incluindo como o estudo é projetado e o que o estudo está medindo.

Como o estudo é projetado?

Detalhes do projeto

  • Finalidade Principal: Tratamento
  • Alocação: Não randomizado
  • Modelo Intervencional: Atribuição de grupo único
  • Mascaramento: Nenhum (rótulo aberto)

Armas e Intervenções

Grupo de Participantes / Braço
Intervenção / Tratamento
Experimental: T/PR + Immunosuppressant Regimen (Tacrolimus)
Participants who were receiving tacrolimus (TAC) based immunosuppressant regimen at baseline, received telaprevir (T) 1125 milligram (mg) tablet twice daily for 12 weeks in combination with pegylated interferon alfa 2a (P) (Peg-IFN-alfa-2a) 180 microgram per week (mcg/week) subcutaneous injection and ribavirin (R) (RBV) tablet orally twice daily at a dose of 1000 milligram per day (mg/day) for subjects weighing less than (<) 75 kilogram (kg) and 1200 mg/day for subjects weighing greater than or equal to (>=) 75 kg, for 48 weeks. Participants continued their immunosuppressant regimen, as per standard practice and investigator discretion.
Medicamento: Ribavirina
Tábua
Outros nomes:
  • Copegus®, RBV
Medicamento: Telaprevir
Tábua
Outros nomes:
  • VX-950
Medicamento: Interferon alfa-2a peguilado
Injeção Subcutânea
Outros nomes:
  • Pegasys®, Peg-IFN-alfa-2a
Medicamento: Immunosuppressant Regimen
Cyclosporine (CsA) based immunosuppressant regimen or Tacrolimus (TAC) based immunosuppressant regimen, as per standard practice. Immunosuppressant regimen were not considered study drugs.
Experimental: T/PR + Immunosuppressant Regimen (Cyclosporine)
Participants who were receiving cyclosporine (CsA) based immunosuppressant regimen at baseline, received telaprevir 1125 mg tablet twice daily for 12 weeks in combination with Peg-IFN-alfa-2a 180 mcg/week subcutaneous injection and RBV tablet orally twice daily at a dose of 1000 mg/day for subjects weighing <75 kg and 1200 mg/day for subjects weighing >=75 kg, for 48 weeks. Participants continued their immunosuppressant regimen, as per standard practice and investigator discretion.
Medicamento: Ribavirina
Tábua
Outros nomes:
  • Copegus®, RBV
Medicamento: Telaprevir
Tábua
Outros nomes:
  • VX-950
Medicamento: Interferon alfa-2a peguilado
Injeção Subcutânea
Outros nomes:
  • Pegasys®, Peg-IFN-alfa-2a
Medicamento: Immunosuppressant Regimen
Cyclosporine (CsA) based immunosuppressant regimen or Tacrolimus (TAC) based immunosuppressant regimen, as per standard practice. Immunosuppressant regimen were not considered study drugs.

O que o estudo está medindo?

Medidas de resultados primários

Medida de resultado
Descrição da medida
Prazo
Percentage of Participants With Sustained Viral Response 12 Weeks After Last Planned Dose of Study Drug (SVR12)
Prazo: 12 weeks after last planned dose of study drug (up to Week 60)
SVR12 was defined as an undetectable Hepatitis C Virus (HCV) Ribonucleic Acid (RNA) Levels (<lower limit of quantification) at 12 weeks after last planned dose of study treatment. The plasma HCV RNA level was measured using Roche TaqMan HCV RNA assay. The lower limit of quantification was 25 international units per milliliter (IU/mL).
12 weeks after last planned dose of study drug (up to Week 60)

Medidas de resultados secundários

Medida de resultado
Descrição da medida
Prazo
Percentage of Participants With Sustained Viral Response 24 Weeks After Last Planned Dose of Study Drug (SVR24)
Prazo: 24 weeks after last planned dose of study drug (up to Week 72)
SVR24 was defined as an undetectable HCV RNA Levels at 24 weeks after last planned dose of study treatment. The plasma HCV RNA level was measured using Roche TaqMan HCV RNA assay. The lower limit of quantification was 25 IU/mL.
24 weeks after last planned dose of study drug (up to Week 72)
Percentage of Participants With Rapid Viral Response (RVR)
Prazo: Week 4
The plasma HCV RNA level was measured using Roche TaqMan HCV RNA assay. The lower limit of quantification was 25 IU/mL and the lower limit of detection was 10 IU/mL. RVR was defined as undetectable HCV RNA 4 weeks after the start of study treatment.
Week 4
Percentage of Participants With Extended Rapid Viral Response (eRVR)
Prazo: Week 4 and Week 12
The plasma HCV RNA level was measured using Roche TaqMan HCV RNA assay. The lower limit of quantification was 25 IU/mL and the lower limit of detection was 10 IU/mL. eRVR was defined as undetectable HCV RNA at both 4 weeks and 12 weeks after the start of study treatment.
Week 4 and Week 12
Percentage of Participants With On-Treatment Virologic Failure
Prazo: Baseline up to Week 48
On-treatment virologic failure was defined as subjects who met futility or who completed the assigned treatment duration and had detectable HCV RNA at planned end of treatment (up to 48 weeks). Data for this outcome was not planned to be reported by prior response.
Baseline up to Week 48
Percentage of Participants With Viral Relapse
Prazo: 48 weeks
48 weeks
Pharmacokinetics of Telaprevir, Peg-IFN, RBV , and Selected Immunosuppressant Medications (Tacrolimus and Cyclosporine)
Prazo: 48 weeks
48 weeks
Percentage of Participants Requiring Dose Titration of Immunosuppressant Medications
Prazo: 48 weeks
48 weeks
Percentage of Participants With Biopsy Confirmed and Treated Rejection
Prazo: 48 weeks
48 weeks
Percentage of Participants With Histological Evidence of Stabilization or Improvement in Inflammation Grade or Fibrosis Stage
Prazo: 48 weeks
48 weeks
Number of Participants With Telaprevir Resistant HCV Variant at Non-Structural Viral Protein 3-4A (NS3-4A) Region
Prazo: 48 weeks
48 weeks
Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)
Prazo: Baseline up to Week 52
Any adverse change from the participant's baseline (pre-treatment) condition, including any adverse experience, abnormal recording or clinical laboratory assessment value which occurs during the course of the study, whether it is considered related to the study drug or not. An adverse event includes any newly occurring event or previous condition that has increased in severity or frequency since the administration of study drug. SAE: medical event or condition, which falls into any of the following categories, regardless of its relationship to the study drug: death, life threatening adverse experience, in-patient hospitalization/prolongation of hospitalization, persistent/significant disability or incapacity, congenital anomaly/birth defect, important medical event. "Study drug" includes all investigational agents (including placebo, if applicable) administered during the course of the study.
Baseline up to Week 52

Outras medidas de resultado

Medida de resultado
Prazo
Percentage of Participants With Sustained Viral Response 4 Weeks After Last Planned Dose of Study Drug (SVR4)
Prazo: 4 weeks after last planned dose of study drug (up to Week 52)
4 weeks after last planned dose of study drug (up to Week 52)

Colaboradores e Investigadores

É aqui que você encontrará pessoas e organizações envolvidas com este estudo.

Patrocinador

Vertex Pharmaceuticals Incorporated

Datas de registro do estudo

Essas datas acompanham o progresso do registro do estudo e os envios de resumo dos resultados para ClinicalTrials.gov. Os registros do estudo e os resultados relatados são revisados ​​pela National Library of Medicine (NLM) para garantir que atendam aos padrões específicos de controle de qualidade antes de serem publicados no site público.

Datas Principais do Estudo

Início do estudo

1 de fevereiro de 2012

Conclusão Primária (Real)

1 de abril de 2014

Conclusão do estudo (Real)

1 de abril de 2014

Datas de inscrição no estudo

Enviado pela primeira vez

3 de novembro de 2011

Enviado pela primeira vez que atendeu aos critérios de CQ

3 de novembro de 2011

Primeira postagem (Estimativa)

8 de novembro de 2011

Atualizações de registro de estudo

Última Atualização Postada (Estimativa)

18 de junho de 2015

Última atualização enviada que atendeu aos critérios de controle de qualidade

1 de junho de 2015

Última verificação

1 de junho de 2015

Mais Informações

Termos relacionados a este estudo

Termos MeSH relevantes adicionais

Outros números de identificação do estudo

  • VX11-950-117

Essas informações foram obtidas diretamente do site clinicaltrials.gov sem nenhuma alteração. Se você tiver alguma solicitação para alterar, remover ou atualizar os detalhes do seu estudo, entre em contato com register@clinicaltrials.gov. Assim que uma alteração for implementada em clinicaltrials.gov, ela também será atualizada automaticamente em nosso site .

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