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Oral Antivirals (GS-5885, Tegobuvir, and/or GS-9451) With Peginterferon Alfa 2a and Ribavirin in Treatment Experienced Subjects With Chronic Genotype 1 Hepatitis C Virus Infection

14 stycznia 2014 zaktualizowane przez: Gilead Sciences

A Phase 2b, Randomized, Double-Blind, Placebo-Controlled Trial Evaluating Response Guided Therapy Using Combinations of Oral Antivirals (GS-5885, Tegobuvir, and/or GS-9451) With Peginterferon Alfa 2a and Ribavirin in Treatment Experienced Subjects With Chronic Genotype 1 Hepatitis C Virus Infection (Protocol GS US 256 0124)

This is a Phase 2b, Randomized, Double-Blind, Placebo-Controlled Trial Evaluating Response Guided Therapy using Combinations of Oral Antivirals (GS-5885, tegobuvir, and/or GS-9451) with Peginterferon Alfa 2a and Ribavirin in Treatment Experienced Subjects with Chronic Genotype 1 Hepatitis C Virus (HCV) Infection.

Przegląd badań

Szczegółowy opis

In September 2011, the FDA requested that Gilead make several major changes to this study because of side effects experienced by two patients in other Gilead studies.

In 2 HCV-infected people that were given tegobuvir with another experimental medication plus interferon and ribavirin, big reductions in the number of white blood cells, red blood cells and platelets were seen. Because these cases might have been related to tegobuvir when given with interferon, ribavirin and another direct antiviral agent, tegobuvir is no longer being given to people with these other medications in this study.

As a result, the study is now open label which means both you and your study doctor will know the medication you will be receiving and Arms 1 and 3 have been discontinued from the study.

All subjects enrolled in the study as of September 2nd 2011 will receive Response Guided Therapy (RGT) with both GS-5885 and GS-9451 plus PEG and RBV.

Typ studiów

Interwencyjne

Zapisy (Rzeczywisty)

163

Faza

  • Faza 2

Kontakty i lokalizacje

Ta sekcja zawiera dane kontaktowe osób prowadzących badanie oraz informacje o tym, gdzie badanie jest przeprowadzane.

Lokalizacje studiów

      • San Juan, Portoryko, 00927
        • Fundacion De Investigacion de Diego
    • Alabama
      • Dothan, Alabama, Stany Zjednoczone, 36305
        • Digestive Health Specialists Of The Southeast
      • Montgomery, Alabama, Stany Zjednoczone, 36116
        • Alabama Liver and Digestive Specialists
    • California
      • Beverly Hills, California, Stany Zjednoczone, 90211
        • California Liver Institute
      • La Jolla, California, Stany Zjednoczone, 92037
        • Scripps Clinic
      • Sacramento, California, Stany Zjednoczone, 95817
        • University of California Davis Medical Center
      • San Diego, California, Stany Zjednoczone, 92123
        • Medical Associates Research Group
      • San Diego, California, Stany Zjednoczone, 92154
        • Kaiser Permanente
      • San Diego, California, Stany Zjednoczone, 92015
        • RESEARCH and EDUCATION, INC
    • Colorado
      • Aurora, Colorado, Stany Zjednoczone, 80045
        • University of Colorado Denver
      • Englewood, Colorado, Stany Zjednoczone, 80110
        • South Denver Gastroenterology
    • Florida
      • Bradenton, Florida, Stany Zjednoczone, 34209
        • Bach and Godofsky Infectious Diseases
      • Gainesville, Florida, Stany Zjednoczone, 32610
        • University of Florida
      • Miami, Florida, Stany Zjednoczone, 33136
        • University of Miami
      • Orlando, Florida, Stany Zjednoczone, 32803
        • Orlando Immunology Center
      • Wellington, Florida, Stany Zjednoczone, 33414
        • South Florida Center of Gastroenterology, LLC
    • Georgia
      • Atlanta, Georgia, Stany Zjednoczone, 30309
        • Digestive Healthcare of Georgia
      • Atlanta, Georgia, Stany Zjednoczone, 30308
        • Emory University, Infectious Disease Clinic
      • Decatur, Georgia, Stany Zjednoczone, 30033
        • Dekalb Gastroenterology
      • Marietta, Georgia, Stany Zjednoczone, 30060
        • Gastrointestinal Specialists of Georgia PC
    • Indiana
      • Indianapolis, Indiana, Stany Zjednoczone, 46202
        • Indiana University
      • Indianapolis, Indiana, Stany Zjednoczone, 46237
        • Indianapolis Gastroenterology Research Foundation
    • Kentucky
      • Bowling Green, Kentucky, Stany Zjednoczone, 42101
        • Graves Gilbert Clinic
    • Louisiana
      • Baton Rouge, Louisiana, Stany Zjednoczone, 70809
        • Gastroenterology Associates, LLC
    • Maryland
      • Baltimore, Maryland, Stany Zjednoczone, 21229
        • Digestive Disease Associates, PA
    • Massachusetts
      • Boston, Massachusetts, Stany Zjednoczone, 02115
        • Beth Israel Deaconess Medical Center
      • Worcester, Massachusetts, Stany Zjednoczone, 01608
        • Partners in Internal Medicine, P.C.
    • Michigan
      • Detroit, Michigan, Stany Zjednoczone, 48202
        • Henry Ford Health System
    • Mississippi
      • Jackson, Mississippi, Stany Zjednoczone, 39202
        • Gastrointestinal Associates, PA
      • Tupelo, Mississippi, Stany Zjednoczone, 38801
        • Digestive Health Specialists, PA
    • New Jersey
      • Hillsborough, New Jersey, Stany Zjednoczone, 08844
        • ID Care 105
      • Morristown, New Jersey, Stany Zjednoczone, 07960
        • Atlantic Research Affiliates, LLC
    • New Mexico
      • Santa Fe, New Mexico, Stany Zjednoczone, 87505
        • Southwest CARE Center
    • New York
      • Binghamton, New York, Stany Zjednoczone, 13903
        • Binghamton Gastroenterology
      • Manhasset, New York, Stany Zjednoczone, 11030
        • North Shore University Hospital
      • New York, New York, Stany Zjednoczone, 10016
        • Concorde Medical Group
      • New York, New York, Stany Zjednoczone, 10021
        • Cornell University Gastroenterology & Hepatology
    • North Carolina
      • Asheville, North Carolina, Stany Zjednoczone, 28801
        • Asheville Gastroenterology Associates, P.A.
      • Durham, North Carolina, Stany Zjednoczone, 27710
        • Duke University Medical Center
      • Fayetteville, North Carolina, Stany Zjednoczone, 28304
        • Cumberland Research Associates, LLC
    • Ohio
      • Cincinnati, Ohio, Stany Zjednoczone, 45267
        • University of Cincinnati
    • Oklahoma
      • Tulsa, Oklahoma, Stany Zjednoczone, 74104
        • Options Health Research, LLC
    • Rhode Island
      • Providence, Rhode Island, Stany Zjednoczone, 02905
        • University Gastroenterology
    • Tennessee
      • Germantown, Tennessee, Stany Zjednoczone, 38138
        • Memphis Gastroenterology Group
      • Nashville, Tennessee, Stany Zjednoczone, 37205
        • Nashville Medical Research Institute
      • Nashville, Tennessee, Stany Zjednoczone, 37211
        • Nashville Gastrointestinal Specialists, Inc
      • Nashville, Tennessee, Stany Zjednoczone, 37203
        • Columbia Medical Group, The Frist Clinic
    • Texas
      • Arlington, Texas, Stany Zjednoczone, 76012
        • The North Texas Research Institute
      • Dallas, Texas, Stany Zjednoczone, 75246
        • Baylor University Medical Center
      • Houston, Texas, Stany Zjednoczone, 77005
        • Kelsey Research Foundation
      • Houston, Texas, Stany Zjednoczone, 77030
        • Research Specialists of Texas
    • Virginia
      • Fairfax, Virginia, Stany Zjednoczone, 22031
        • Metropolitan Research
      • Norfolk, Virginia, Stany Zjednoczone, 23502
        • Digestive and Liver Disease Specialists
      • Richmond, Virginia, Stany Zjednoczone, 23249
        • Liver Institute of Virginia
    • Washington
      • Seattle, Washington, Stany Zjednoczone, 98101
        • Virginia Mason Medical Center, Digestive Disease Institute

Kryteria uczestnictwa

Badacze szukają osób, które pasują do określonego opisu, zwanego kryteriami kwalifikacyjnymi. Niektóre przykłady tych kryteriów to ogólny stan zdrowia danej osoby lub wcześniejsze leczenie.

Kryteria kwalifikacji

Wiek uprawniający do nauki

18 lat do 80 lat (Dorosły, Starszy dorosły)

Akceptuje zdrowych ochotników

Nie

Płeć kwalifikująca się do nauki

Wszystko

Opis

Inclusion Criteria:

  • Male or female, aged from 18 to 70 years old, inclusive
  • Chronic HCV infection for at least 6 months prior to Baseline
  • Subjects must have liver biopsy results (≤ 3 years prior to screening) indicating the absence of cirrhosis.
  • Monoinfection with HCV genotype 1
  • HCV RNA > 10^4 IU/mL at Screening
  • Prior treatment and adherence (as defined by receiving at least 80% of the prescribed treatment) with one course of a pegylated interferon-alfa (Pegasys or Peg-Intron) and RBV
  • The subject's medical records must include sufficient detail of prior treatment with pegylated interferon-alfa and RBV (start/stop dates and viral response) to allow for categorization of prior response as either

    • Non-Responder: Subject did not achieve undetectable HCV RNA levels during or at the end of a treatment period of at least 12 weeks duration. Within Nonresponders, subjects will be further defined as Null or Partial Responders if they had < 2 log10 or ≥ 2 log10 reduction, respectively, in HCV RNA during the first 12 weeks of treatment
    • Responder: Subject achieved undetectable HCV RNA during treatment. Within Responders, subjects will be further defined as Relapsers if they had undetectable HCV RNA at the end of at least 42 weeks of treatment but detectable HCV RNA levels observed within 1 year of the end of treatment and Breakthrough subjects if they achieved undetectable HCV RNA levels during the treatment period but detectable HCV RNA at the end of treatment.
  • No prior treatment with an oral HCV antiviral (exclusive of RBV).
  • Body mass index (BMI) 18-36 kg/m2, inclusive.
  • Screening ECG without clinically significant abnormalities and with QTcF interval (QT corrected using Fridericia's formula) ≤ 450 msec for males and ≤ 470 msec for females
  • Creatinine clearance ≥ 50 mL/min.
  • Agree to use two forms of highly effective contraception for the duration of the study and for 6 months after the last dose of study medication. Females of childbearing potential must have a negative pregnancy test at Screening and Baseline

Exclusion Criteria:

  • Discontinued prior treatment with pegylated interferon-alfa and RBV due to an adverse event, toxicity reasons or were lost to follow-up.
  • Exceed defined thresholds for leukopenia, neutropenia, anemia, thrombocytopenia, thyroid stimulating hormone (TSH)
  • Diagnosis of autoimmune disease, decompensated liver disease, poorly controlled diabetes mellitus, significant psychiatric illness, severe chronic obstructive pulmonary disease (COPD), HIV, hepatitis B virus (HBV), or another HCV genotype, hepatocellular carcinoma or other malignancy (with exception of certain skin cancers), hemoglobinopathy, retinal disease, or are immunosuppressed.
  • Current use of amphetamines, cocaine, opiates (e.g., morphine, heroin), or ongoing alcohol abuse are excluded. Subjects on stable methadone are excluded, however stable buprenorphine maintenance treatment for at least 6 months is not exclusionary
  • Receiving any of the prohibited concomitant medications.

Plan studiów

Ta sekcja zawiera szczegółowe informacje na temat planu badania, w tym sposób zaprojektowania badania i jego pomiary.

Jak projektuje się badanie?

Szczegóły projektu

  • Główny cel: Leczenie
  • Model interwencyjny: Przydział równoległy
  • Maskowanie: Brak (otwarta etykieta)

Broń i interwencje

Grupa uczestników / Arm
Interwencja / Leczenie
Eksperymentalny: Arm 2

AM Dosing: One GS-5885 30 mg tablet, two GS-9451 100 mg tablets, orally with RBV and with food.

PM Dosing: RBV with food.

PEG, 180 µg, will be administered weekly by subcutaneous injection for the specified period of time (see Study Design). Pegasys® prefilled syringes (Hoffman-La Roche) will be supplied by Gilead Sciences.

30 mg active tablet
two active 100 mg tablets
peginterferon alfa-2a (solution for injection) 180 µg/week
ribavirin tablet (weight based: 1000 mg/day <75 kg; 1200 mg/day ≥ 75 kg) divided twice daily (BID); tablet

Co mierzy badanie?

Podstawowe miary wyniku

Miara wyniku
Opis środka
Ramy czasowe
Sustained Virologic Response (SVR)
Ramy czasowe: through 24 weeks of off-treatment follow-up
To evaluate antiviral efficacy as measured by sustained virologic response (SVR, defined as HCV RNA < Lower Limit of Quantification (LLoQ) 24 weeks post-treatment) of response guided therapy (RGT) with GS-9451 + GS-5885, with peginterferon alfa-2a (PEG) and ribavirin (RBV) in treatment-experienced subjects.
through 24 weeks of off-treatment follow-up

Miary wyników drugorzędnych

Miara wyniku
Opis środka
Ramy czasowe
Sustained Virologic Response(SVR) of each regimen administered for 24 to 48 weeks
Ramy czasowe: Weeks 1, 2, 4, 8, 12, 16, 20, 24, 36, 48 and at 4 and 12 weeks off-treatment
To evaluate antiviral efficacy as measured by SVR for 24 or 48 weeks of treatment with GS-5885, GS-9451, PEG, RBV.
Weeks 1, 2, 4, 8, 12, 16, 20, 24, 36, 48 and at 4 and 12 weeks off-treatment
Safety and Tolerability
Ramy czasowe: through 24 to 48 week treatment period and up to 24 weeks of off-treatment follow-up
To evaluate the safety and tolerability of treatment with GS-5885, GS-9451, PEG & RBV administered for 24 or 48 weeks. Safety endpoints will be summarized as the number (proportion) of subjects with events or abnormalities for categorical values or as an 8-number summary (n, mean, standard deviation, median, Q1, Q3, minimum, maximum) for continuous data by treatment arm.
through 24 to 48 week treatment period and up to 24 weeks of off-treatment follow-up
Characterize the viral dynamics of GS-5885, GS-9451 when administered in combination with PEG and RBV
Ramy czasowe: Through Week 2 of therapy
HCV RNA levels, pharmacokinetics, and viral sequencing
Through Week 2 of therapy
Characterize the pharmacokinetics of GS-5885 and GS-9451 when administered in combination with PEG and RBV
Ramy czasowe: Through Week 2 of therapy
Plasma concentrations of the study drug over time will be summarized using descriptive statistics. Pharmacokinetic parameters (Cmax, Tmax, Clast, Tlast, Ctau, λz, AUCtau, and T½) will be listed and summarized for GS-5885 and GS-9451, using descriptive statistics (eg, sample size, arithmetic mean, geometric mean, % coefficient of variation, standard deviation, median, minimum, and maximum).
Through Week 2 of therapy
Emergence of Viral Resistance
Ramy czasowe: through 24 to 48 week treatment period and up to 24 weeks of off-treatment follow-up
To characterize the viral resistance to GS-5885 and GS 9451tegobuvir when administered in combination with PEG and RBV.
through 24 to 48 week treatment period and up to 24 weeks of off-treatment follow-up

Współpracownicy i badacze

Tutaj znajdziesz osoby i organizacje zaangażowane w to badanie.

Sponsor

Daty zapisu na studia

Daty te śledzą postęp w przesyłaniu rekordów badań i podsumowań wyników do ClinicalTrials.gov. Zapisy badań i zgłoszone wyniki są przeglądane przez National Library of Medicine (NLM), aby upewnić się, że spełniają określone standardy kontroli jakości, zanim zostaną opublikowane na publicznej stronie internetowej.

Główne daty studiów

Rozpoczęcie studiów

1 lipca 2011

Zakończenie podstawowe (Rzeczywisty)

1 marca 2013

Ukończenie studiów (Rzeczywisty)

1 marca 2013

Daty rejestracji na studia

Pierwszy przesłany

9 czerwca 2011

Pierwszy przesłany, który spełnia kryteria kontroli jakości

10 czerwca 2011

Pierwszy wysłany (Oszacować)

13 czerwca 2011

Aktualizacje rekordów badań

Ostatnia wysłana aktualizacja (Oszacować)

11 lutego 2014

Ostatnia przesłana aktualizacja, która spełniała kryteria kontroli jakości

14 stycznia 2014

Ostatnia weryfikacja

1 stycznia 2014

Więcej informacji

Te informacje zostały pobrane bezpośrednio ze strony internetowej clinicaltrials.gov bez żadnych zmian. Jeśli chcesz zmienić, usunąć lub zaktualizować dane swojego badania, skontaktuj się z register@clinicaltrials.gov. Gdy tylko zmiana zostanie wprowadzona na stronie clinicaltrials.gov, zostanie ona automatycznie zaktualizowana również na naszej stronie internetowej .

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