Esta página se tradujo automáticamente y no se garantiza la precisión de la traducción. por favor refiérase a versión inglesa para un texto fuente.

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 junio de 2015 actualizado 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.

Descripción general del estudio

Estado

Terminado

Condiciones

Intervención / Tratamiento

Tipo de estudio

Intervencionista

Inscripción (Actual)

61

Fase

  • Fase 2

Contactos y Ubicaciones

Esta sección proporciona los datos de contacto de quienes realizan el estudio e información sobre dónde se lleva a cabo este estudio.

Ubicaciones de estudio

  • 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

Criterios de participación

Los investigadores buscan personas que se ajusten a una determinada descripción, denominada criterio de elegibilidad. Algunos ejemplos de estos criterios son el estado de salud general de una persona o tratamientos previos.

Criterio de elegibilidad

Edades elegibles para estudiar

18 años a 65 años (Adulto, Adulto Mayor)

Acepta Voluntarios Saludables

No

Géneros elegibles para el estudio

Todos

Descripción

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

Plan de estudios

Esta sección proporciona detalles del plan de estudio, incluido cómo está diseñado el estudio y qué mide el estudio.

¿Cómo está diseñado el estudio?

Detalles de diseño

  • Propósito principal: Tratamiento
  • Asignación: No aleatorizado
  • Modelo Intervencionista: Asignación de un solo grupo
  • Enmascaramiento: Ninguno (etiqueta abierta)

Armas e Intervenciones

Grupo de participantes/brazo
Intervención / Tratamiento
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.
Droga: Ribavirina
Tableta
Otros nombres:
  • Copegus®, RBV
Droga: Telaprevir
Tableta
Otros nombres:
  • VX-950
Droga: Interferón pegilado alfa-2a
Inyección subcutánea
Otros nombres:
  • Pegasys®, Peg-IFN-alfa-2a
Droga: 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.
Droga: Ribavirina
Tableta
Otros nombres:
  • Copegus®, RBV
Droga: Telaprevir
Tableta
Otros nombres:
  • VX-950
Droga: Interferón pegilado alfa-2a
Inyección subcutánea
Otros nombres:
  • Pegasys®, Peg-IFN-alfa-2a
Droga: Immunosuppressant Regimen
Cyclosporine (CsA) based immunosuppressant regimen or Tacrolimus (TAC) based immunosuppressant regimen, as per standard practice. Immunosuppressant regimen were not considered study drugs.

¿Qué mide el estudio?

Medidas de resultado primarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Percentage of Participants With Sustained Viral Response 12 Weeks After Last Planned Dose of Study Drug (SVR12)
Periodo de tiempo: 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 resultado secundarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Percentage of Participants With Sustained Viral Response 24 Weeks After Last Planned Dose of Study Drug (SVR24)
Periodo de tiempo: 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)
Periodo de tiempo: 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)
Periodo de tiempo: 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
Periodo de tiempo: 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
Periodo de tiempo: 48 weeks
48 weeks
Pharmacokinetics of Telaprevir, Peg-IFN, RBV , and Selected Immunosuppressant Medications (Tacrolimus and Cyclosporine)
Periodo de tiempo: 48 weeks
48 weeks
Percentage of Participants Requiring Dose Titration of Immunosuppressant Medications
Periodo de tiempo: 48 weeks
48 weeks
Percentage of Participants With Biopsy Confirmed and Treated Rejection
Periodo de tiempo: 48 weeks
48 weeks
Percentage of Participants With Histological Evidence of Stabilization or Improvement in Inflammation Grade or Fibrosis Stage
Periodo de tiempo: 48 weeks
48 weeks
Number of Participants With Telaprevir Resistant HCV Variant at Non-Structural Viral Protein 3-4A (NS3-4A) Region
Periodo de tiempo: 48 weeks
48 weeks
Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)
Periodo de tiempo: 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

Otras medidas de resultado

Medida de resultado
Periodo de tiempo
Percentage of Participants With Sustained Viral Response 4 Weeks After Last Planned Dose of Study Drug (SVR4)
Periodo de tiempo: 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

Aquí es donde encontrará personas y organizaciones involucradas en este estudio.

Patrocinador

Vertex Pharmaceuticals Incorporated

Fechas de registro del estudio

Estas fechas rastrean el progreso del registro del estudio y los envíos de resultados resumidos a ClinicalTrials.gov. Los registros del estudio y los resultados informados son revisados ​​por la Biblioteca Nacional de Medicina (NLM) para asegurarse de que cumplan con los estándares de control de calidad específicos antes de publicarlos en el sitio web público.

Fechas importantes del estudio

Inicio del estudio

1 de febrero de 2012

Finalización primaria (Actual)

1 de abril de 2014

Finalización del estudio (Actual)

1 de abril de 2014

Fechas de registro del estudio

Enviado por primera vez

3 de noviembre de 2011

Primero enviado que cumplió con los criterios de control de calidad

3 de noviembre de 2011

Publicado por primera vez (Estimar)

8 de noviembre de 2011

Actualizaciones de registros de estudio

Última actualización publicada (Estimar)

18 de junio de 2015

Última actualización enviada que cumplió con los criterios de control de calidad

1 de junio de 2015

Última verificación

1 de junio de 2015

Más información

Términos relacionados con este estudio

Términos MeSH relevantes adicionales

Otros números de identificación del estudio

  • VX11-950-117

Esta información se obtuvo directamente del sitio web clinicaltrials.gov sin cambios. Si tiene alguna solicitud para cambiar, eliminar o actualizar los detalles de su estudio, comuníquese con register@clinicaltrials.gov. Tan pronto como se implemente un cambio en clinicaltrials.gov, también se actualizará automáticamente en nuestro sitio web. .

Suscribir