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Hepatitis C, ChronicPhase 2NCT01749150

A Study of Ritonavir-Boosted Danoprevir in Combination With Pegasys (Peginterferon Alfa-2a) and Copegus (Ribavirin) in Patients of Asian Origin With Chronic Hepatitis C Genotype 1 With or Without Cirrhosis

A Phase 2 study testing danoprevir + ritonavir, peginterferon alfa-2a [Pegasys] and ribavirin [Copegus] in people with Hepatitis C, Chronic, run by Hoffmann-La Roche at 13 sites in 3 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This Phase II, open-label, parallel-arm study will evaluate the safety, tolerability, pharmacokinetics and antiviral activity of ritonavir-boosted danoprevir in combination with Pegasys (peginterferon alfa-2a) and Copegus (ribavirin) in treatment-naïve patients of Asian origin with chronic hepatitis C genotype 1. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Hepatitis C, Chronic
What is being tested?
danoprevir + ritonavir, peginterferon alfa-2a [Pegasys] and ribavirin [Copegus]
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
61 participants
Where
13 sitesin 3 countries
Study dates
Apr 2013to Feb 2015
Phase
Phase 2
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Adult patients of East Asian or Southeast Asian origin, >/= 18 years of age
  • Presence of chronic genotype 1 hepatitis C infection
  • Treatment-naïve

Who cannot join

  • History or presence of decompensated liver disease
  • Presence or history of non-hepatitis C chronic liver disease
  • Positive for hepatitis B or HIV infection

Trial locations and contacts

13 sites in 3 countries.

13 sites in 3 countries

Taiwan6 sites
  • Study site

    Chiayi County, 61363

  • Study site

    Kaohsiung City, 807

  • Study site

    Taichung, 40447

  • Study site

    Taipei, 100

  • Study site

    Taoyuan, 333

  • Study site

    Yunlin County, 640

Other trials in Taiwan

South Korea4 sites
  • Study site

    Busan, 614-735

  • Study site

    Seoul, 110-744

  • Study site

    Seoul, 120-752

  • Study site

    Seoul, 135-710

Other trials in South Korea

Thailand3 sites
  • Study site

    Bangkok, 10330

  • Study site

    Bangkok, 10700

  • Study site

    Chiang Mai, 50200

Other trials in Thailand

About this study

Official title: STUDY TO EVALUATE SAFETY, TOLERABILITY, PHARMACOKINETICS, AND ANTIVIRAL ACTIVITY OF RITONAVIR-BOOSTED DANOPREVIR IN COMBINATION WITH PEGINTERFERON ALFA-2A PLUS RIBAVIRIN IN TREATMENT-NAÏVE PATIENTS OF ASIAN ORIGIN WHO HAVE CHRONIC HEPATITIS C GENOTYPE 1 WITH OR WITHOUT COMPENSATED CIRRHOSIS

This Phase II, open-label, parallel-arm study will evaluate the safety, tolerability, pharmacokinetics and antiviral activity of ritonavir-boosted danoprevir in combination with Pegasys (peginterferon alfa-2a) and Copegus (ribavirin) in treatment-naïve patients of Asian origin with chronic hepatitis C genotype 1. Patients will receive danoprevir 125 mg plus ritonavir 100 mg as fixed dose tablet orally twice daily in combination with weekly Pegasys 180 mcg subcutaneously and Copegus 1000-1200 mg orally daily in divided doses. Treatment duration is 12 weeks in patients without cirrhosis and 24 weeks in patients with compensated cirrhosis.

Being tested
danoprevir + ritonavir, peginterferon alfa-2a [Pegasys], ribavirin [Copegus]
Medical subject headings
Hepatitis C, Chronic

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • danoprevir + ritonavirDrug

    125 mg danoprevir + 100 mg ritonvir fixed-dose combination tablet, orally b.i.d., 12 weeks

  • danoprevir + ritonavirDrug

    125 mg danoprevir + 100 mg ritonvir fixed-dose combination tablet, orally b.i.d., 24 weeks

  • peginterferon alfa-2a [Pegasys]Drug

    180 mcg sc weekly, 12 weeks

  • peginterferon alfa-2a [Pegasys]Drug

    180 mcg sc weekly, 24 weeks

  • ribavirin [Copegus]Drug

    1000-1200 mg orally daily in divided doses, 12 weeks

  • ribavirin [Copegus]Drug

    1000-1200 mg orally daily in divided doses, 24 weeks

Study groups in NCT01749150
Study groupRoleWhat they receive
with cirrhosisExperimentalNot described
Receives: Drug: danoprevir + ritonavir; Drug: peginterferon alfa-2a [Pegasys]; Drug: ribavirin [Copegus]
without cirrhosisExperimentalNot described
Receives: Drug: danoprevir + ritonavir; Drug: peginterferon alfa-2a [Pegasys]; Drug: ribavirin [Copegus]

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Safety: Incidence of adverse events

    Measured: approximately 1.5 years

  2. Pharmacokinetics: Area under the concentration-time curve (AUC) for danoprevir/ritonavir

    Measured: up to 14 days

  3. Antiviral activity: Change in HCV RNA levels, measured using Roche COBAS TaqMan HCV Test v2.0 for High Pure System

    Measured: from baseline to Week 36/48

  4. Antiviral activity: Proportion of patients with unquantifiable/undetectable HCV RNA during the study

    Measured: approximately 1.5 years

Secondary outcomes (6)
  1. Incidence of viral resistance to danoprevir

    Measured: approximately 1.5 years

  2. Rapid virological response (RVR): Proportion of patients with undetectable HCV RNA at Week 4

    Measured: approximately 1.5 years

  3. Complete early virological response (cEVR): Proportion of patients with undetectable HCV RNA at Week 12

    Measured: approximately 1.5 years

  4. Sustained virological response 12 weeks after end of treatment (SVR-12), defined as unquantifiable HCV RNA 8-20 weeks after the last day of study drug administration

    Measured: approximately 1.5 years

  5. Sustained virological response 24 weeks after end of treatment (SVR-24), defined as unquantifiable HCV RNA > 20 weeks after the last day of study drug administration

    Measured: approximately 1.5 years

  6. SVR measured as HCV RNA log10 IU/mL change from baseline to Week 12

    Measured: approximately 1.5 years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted13 Dec 2012 (estimated)
  2. Study startApr 2013
  3. Primary completionFeb 2015
  4. Study completionFeb 2015

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
61 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01749150
Sponsor's protocol ID
YV28218
Status last verified
Nov 2016
First submitted
11 Dec 2012
Last updated
2 Nov 2016
Results posted
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing danoprevir + ritonavir, peginterferon alfa-2a [Pegasys] and ribavirin [Copegus] in people with Hepatitis C, Chronic, run by Hoffmann-La Roche at 13 sites in 3 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 2 Nov 2016. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 13 sites in Taiwan, South Korea, Thailand. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Safety: Incidence of adverse events (time frame: approximately 1.5 years). The study lists 4 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 2 Nov 2016.

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