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Dose-Ranging Study of Sofosbuvir in Combination With Pegylated Interferon and Ribavirin in Treatment Naïve GT 1 HCV Patients

31 marzo 2014 aggiornato da: Gilead Sciences

A Multi-center, Double-Blind, Parallel Group, Randomized, Placebo-Controlled, Dose Ranging Study to Investigate the Safety, Tolerability, Pharmacokinetics and Pharmacodynamics Following Oral Administration of PSI-7977 in Combination With Standard of Care (Pegylated Interferon and Ribavirin) in Treatment-Naïve Patients With Chronic HCV Infection Genotype 1

Participants with genotype 1 HCV infection were randomized to 1 of 3 sofosbuvir doses (100 mg, 200 mg, or 400 mg) or matching placebo once daily based upon stratification for IL28B status (CC or CT/TT). Placebo tablets were administered to participants receiving 100 mg active sofosbuvir (3 placebo tablets) and 200 mg active sofosbuvir (2 placebo tablets) in order to maintain the study blind. Participants received sofosbuvir/matching placebo from Day 0 to 27. Participants also received treatment with PEG+RBV starting on Day 0 of the study which continued for 48 weeks. Participants were evaluated for sustained virologic response (SVR) for an additional 24 weeks following completion of study treatment.

Panoramica dello studio

Stato

Completato

Condizioni

Tipo di studio

Interventistico

Iscrizione (Effettivo)

64

Fase

  • Fase 2

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Luoghi di studio

      • Santurce, Porto Rico, 00909
        • Fundacion de Investigacion de Diego
    • California
      • San Francisco, California, Stati Uniti, 94115
        • Quest Clinical Research
    • Florida
      • Gainesville, Florida, Stati Uniti, 32610
        • University of Florida
      • Orlando, Florida, Stati Uniti, 32803
        • Orlando Immunology Center
    • North Carolina
      • Durham, North Carolina, Stati Uniti, 27710
        • Duke University
    • Texas
      • San Antonio, Texas, Stati Uniti, 78215
        • Alamo Medical Research Center
    • Washington
      • Seattle, Washington, Stati Uniti, 98101
        • Virginia Mason Medical Center

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

Da 18 anni a 65 anni (Adulto, Adulto più anziano)

Accetta volontari sani

No

Sessi ammissibili allo studio

Tutto

Descrizione

Inclusion Criteria:

  • Treatment-naive males and females, 18-65 years of age
  • Genotype 1 HCV infection
  • Negative pregnancy test for females of childbearing age
  • Females of childbearing age and males with female partners of childbearing age must use two forms of contraception during treatment and following the last dose of ribavirin in accordance with locally approved label for ribavirin

Exclusion Criteria:

  • Hepatitis B or HIV infection
  • Pregnant or breast feeding females or male partners of pregnant females
  • Previous interferon or ribavirin-based therapy or investigational anti-HCV agent
  • History or evidence of medical condition associated with chronic liver disease other than HCV

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

  • Scopo principale: Trattamento
  • Assegnazione: Randomizzato
  • Modello interventistico: Assegnazione di gruppo singolo
  • Mascheramento: Doppio

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Sperimentale: Sofosbuvir 100 mg+PEG+RBV
Participants received sofosbuvir 100 mg (1 x 100 mg tablet) and placebo to match sofosbuvir (3 tablets) for 28 days (baseline to Day 28), plus PEG+RBV (baseline to Week 48)
L'interferone pegilato alfa-2a (PEG) 180 μg è stato somministrato una volta alla settimana mediante iniezione sottocutanea.
Altri nomi:
  • Pegasys®
Sofosbuvir tablet(s) administered orally once daily
Altri nomi:
  • Sovaldi®
  • GS-7977
  • PSI-7977
Ribavirin (RBV) tablets were administered orally in a divided daily dose according to package insert weight-based dosing recommendations (< 75kg = 1000 mg and ≥ 75 kg = 1200 mg).
Altri nomi:
  • Copego®
Sperimentale: Sofosbuvir 200 mg+PEG+RBV
Participants received sofosbuvir 200 mg (2 x 100 mg tablets) and placebo to match sofosbuvir (2 tablets) for 28 days (baseline to Day 28), plus PEG+RBV (baseline to Week 48)
L'interferone pegilato alfa-2a (PEG) 180 μg è stato somministrato una volta alla settimana mediante iniezione sottocutanea.
Altri nomi:
  • Pegasys®
Sofosbuvir tablet(s) administered orally once daily
Altri nomi:
  • Sovaldi®
  • GS-7977
  • PSI-7977
Ribavirin (RBV) tablets were administered orally in a divided daily dose according to package insert weight-based dosing recommendations (< 75kg = 1000 mg and ≥ 75 kg = 1200 mg).
Altri nomi:
  • Copego®
Sperimentale: Sofosbuvir 400 mg+PEG+RBV
Participants received sofosbuvir 400 mg (4 x 100 mg tablets) for 28 days (baseline to Day 28), plus PEG+RBV (baseline to Week 48)
L'interferone pegilato alfa-2a (PEG) 180 μg è stato somministrato una volta alla settimana mediante iniezione sottocutanea.
Altri nomi:
  • Pegasys®
Sofosbuvir tablet(s) administered orally once daily
Altri nomi:
  • Sovaldi®
  • GS-7977
  • PSI-7977
Ribavirin (RBV) tablets were administered orally in a divided daily dose according to package insert weight-based dosing recommendations (< 75kg = 1000 mg and ≥ 75 kg = 1200 mg).
Altri nomi:
  • Copego®
Comparatore attivo: Placebo+PEG+RBV
Participants received placebo to match sofosbuvir (4 tablets) for 28 days (baseline to Day 28), plus PEG+RBV (baseline to Week 48)
L'interferone pegilato alfa-2a (PEG) 180 μg è stato somministrato una volta alla settimana mediante iniezione sottocutanea.
Altri nomi:
  • Pegasys®
Ribavirin (RBV) tablets were administered orally in a divided daily dose according to package insert weight-based dosing recommendations (< 75kg = 1000 mg and ≥ 75 kg = 1200 mg).
Altri nomi:
  • Copego®
Placebo to match sofosbuvir administered orally once daily

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Percentage of Participants Who Experienced Adverse Events During the Sofosbuvir Treatment Period
Lasso di tempo: Baseline to Week 4
Adverse events (AEs) occurring during the sofosbuvir treatment period were summarized across the participant population. A participant was counted once if they had a qualifying event.
Baseline to Week 4

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Change in Circulating HCV RNA at Week 4
Lasso di tempo: Baseline to Week 4
Baseline to Week 4
Percentage of Participants With Rapid Virologic Response at Week 4
Lasso di tempo: Week 4
Rapid virologic response (RVR) was defined as HCV RNA below the limit of detection (LOD [15 IU/mL]) at Week 4.
Week 4
Percentage of Participants With Sustained Virologic Response (SVR) at 12 and 24 Weeks After Last Dose of PEG+RBV Following Completion of 48 Weeks of Treatment
Lasso di tempo: Post-treatment Weeks 12 and 24
SVR at 12 weeks (SVR12) and 24 weeks (SVR24) was defined as HCV RNA < LOD 12 and 24 weeks after last dose of PEG+RBV, respectively, following completion of 48 weeks of treatment (4 weeks of sofosbuvir or matching placebo and PEG+RBV, followed by an additional 44 weeks of PEG+RBV).
Post-treatment Weeks 12 and 24
Plasma Pharmacokinetics of Sofosbuvir: Cmax at Day 0
Lasso di tempo: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, and 12 hours postdose

The Cmax of sofosbuvir was measured at Day 0 following a single dose of sofosbuvir.

Cmax is defined as the maximum concentration of drug.

Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, and 12 hours postdose
Plasma Pharmacokinetics of Sofosbuvir: Cmax at Day 27
Lasso di tempo: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, and 24 hours postdose)
The Cmax of sofosbuvir was measured at Day 27 following continuous dosing of sofosbuvir.
Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, and 24 hours postdose)
Plasma Pharmacokinetics of Sofosbuvir: AUCinf at Day 0
Lasso di tempo: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, and 12 hours postdose

The AUCinf of sofosbuvir was analyzed at Day 0 (following a single dose of sofosbuvir).

AUCinf is defined as the concentration of drug (area under the plasma concentration versus time curve) extrapolated to infinite time.

Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, and 12 hours postdose
Plasma Pharmacokinetics of Sofosbuvir: AUCtau at Day 27
Lasso di tempo: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, and 24 hours postdose)

The AUCtau of sofosbuvir was analyzed at Day 27 (following continuous dosing of sofosbuvir).

AUCtau is defined as the concentration of drug (area under the plasma concentration versus time curve) over the dosing interval.

Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, and 24 hours postdose)
Plasma Pharmacokinetics of GS-331007: Cmax at Day 0
Lasso di tempo: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, and 12 hours postdose
The Cmax of GS-331007 was measured at Day 0 following a single dose of sofosbuvir. GS-331007 is the predominant circulating metabolite of sofosbuvir.
Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, and 12 hours postdose
Plasma Pharmacokinetics of GS-331007: Cmax at Day 27
Lasso di tempo: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, and 24 hours postdose)
The Cmax of GS-331007 was measured at Day 27 following continuous dosing of sofosbuvir.
Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, and 24 hours postdose)
Plasma Pharmacokinetics of GS-331007: AUCinf at Day 0
Lasso di tempo: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, and 12 hours postdose
The AUCinf of GS-331007 was analyzed at Day 0 (following a single dose of sofosbuvir).
Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, and 12 hours postdose
Plasma Pharmacokinetics of GS-331007: AUCtau at Day 27
Lasso di tempo: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, and 24 hours postdose)
The AUCtau of GS-331007 was analyzed at Day 27 (following continuous dosing of sofosbuvir).
Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, and 24 hours postdose)
Plasma Pharmacokinetics of GS-566500: Cmax at Day 0
Lasso di tempo: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, and 12 hours postdose
The Cmax of GS-566500 was measured at Day 0 following a single dose of sofosbuvir. GS-566500 is one of the major metabolites of sofosbuvir.
Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, and 12 hours postdose
Plasma Pharmacokinetics of GS-566500: Cmax at Day 27
Lasso di tempo: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, and 24 hours postdose)
The Cmax of GS-566500 was measured at Day 27 following continuous dosing of sofosbuvir.
Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, and 24 hours postdose)
Plasma Pharmacokinetics of GS-566500: AUCinf at Day 0
Lasso di tempo: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, and 12 hours postdose
The AUCinf of GS-566500 was analyzed at Day 0 (following a single dose of sofosbuvir).
Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, and 12 hours postdose
Plasma Pharmacokinetics of GS-566500: AUCtau at Day 27
Lasso di tempo: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, and 24 hours postdose)
The AUCtau of GS-566500 was analyzed at Day 27 (following continuous dosing of sofosbuvir).
Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, and 24 hours postdose)
Percentage of Participants Who Developed Resistance to Sofosbuvir
Lasso di tempo: Baseline to Week 4
Baseline to Week 4

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Sponsor

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio

1 gennaio 2010

Completamento primario (Effettivo)

1 aprile 2010

Completamento dello studio (Effettivo)

1 agosto 2011

Date di iscrizione allo studio

Primo inviato

21 gennaio 2010

Primo inviato che soddisfa i criteri di controllo qualità

21 gennaio 2010

Primo Inserito (Stima)

22 gennaio 2010

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Stima)

17 aprile 2014

Ultimo aggiornamento inviato che soddisfa i criteri QC

31 marzo 2014

Ultimo verificato

1 marzo 2014

Maggiori informazioni

Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .

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