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Completed

NCT Number: NCT01743521

DAA Based Therapy for Recently Acquired Hepatitis C (DARE-C)

To examine the safety and efficacy of response guided triple therapy (PEG-IFN, Ribavirin, Telaprevir) for the treatment of early chronic Hepatitis C Virus (HCV) infection.

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Key information

Age range

18 year–60 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 4

Primary location

St Vincent's Hospital, Sydney, New South Wales, Australia

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About this study

DARE-C is a prospective open label multi-centre pilot study examining the safety and efficacy of response guided triple therapy (PEG-IFN, Ribavirin and Telaprevir) for the treatment of early chronic HCV genotype 1 infection in individuals with and without HIV infection.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Provision of written, informed consent.
  • HCV genotype 1 infection
  • Quantifiable HCV RNA at screening and baseline (>10,000 IU/ml)
  • Recent hepatitis C infection with an estimated duration of Infection >6 months and ≤ 18 months defined as A) i) First anti-HCV antibody or HCV RNA positive within the previous 6 months and ii) Documented anti-HCV antibody negative or HCV RNA negative within the 24 months prior to anti-HCV antibody positive result OR B) i) First anti-HCV antibody or HCV RNA positive within the previous 6 months and ii) acute clinical hepatitis (jaundice or ALT> 10 X ULN) within the 12 months prior to first positive HCV antibody or HCV RNA with no other cause of acute hepatitis identifiable
  • Compensated liver disease (Child-Pugh A)
  • Negative pregnancy test at screening and 24 hours prior to the first dose of study drugs.
  • If heterosexually active, a female subject of childbearing potential and a nonvasectomized male subject who has a female partner of childbearing potential must agree to use 2 effective contraceptives from screening onwards until 6 months (female subject) or 7 months (male subject) after RBV therapy has ended. Note: Hormonal contraceptives may be continued but may not be reliable during telaprevir dosing and for 2 months following cessation of telaprevir. Therefore, subjects should agree to use 2 effective non-hormonal methods of contraception during telaprevir combination therapy and for 2 months after the last intake of telaprevir. As of two months after completion of telaprevir hormonal contraceptives can again be used as one of the two required effective methods of birth control.
  • Subject is judged to be medically stable on the basis of physical examination, medical history and vital signs.
  • Adequate English to provide written, informed consent and to provide reliable responses to the study interview

Additional inclusion criteria for HIV positive individuals

  • Confirmed HIV infection > 6 months duration
  • CD4 > 200 cells/mm3 and HIV < 50 c/ml on stable antiretroviral therapy (ART) at least 3 months prior to treatment
  • Or
  • CD4 >= 500 cells/mm3 and HIV viral load (VL) < 100,000 not on ART
  • If on ART must be taking a regimen containing an accepted* combination of the following drugs: tenofovir ( TDF), lamivudine ( 3TC), emtricitabine (FTC), efavirenz (EFV), abacavir (ABC), raltegravir (RAL), etravirine (ETV), rilpivirine (RIL), ritonavir boosted atazanavir (r/ATZ) * Combination must be supported by current HIV treatment guidelines

Exclusion criteria

  • Individuals considered by the study investigators to be unlikely to participate in intensive follow-up and/or unwilling to provide extra blood samples
  • Current injecting drug use (any injecting within previous 4 weeks)
  • Standard exclusions to Pegylated-interferon (PEG-IFN), Ribavirin (RBV) and Telaprevir (TPV) therapy

Treatment and study plan

TPV/PEG-IFN/RBV

Drug

Drug Telaprevir (TPV): dosed 1125mg twice daily (given as three 375 mg film-coated tablets) orally, except in the situation where a patient is on efavirenz in which case the dose of telaprevir will be 1125mg three times daily.

Drug Ribavirin (RBV): 1000mg or 1200mg p.o daily in split doses (1000mg for patients weighing <75kg and 1200mg for patients weighing ≥ 75kg).

Drug PEG-IFN (other name: Pegasys): 180mcg in 0.5ml (pre-filled syringes) administered subcutaneously once weekly.

Other names: Telaprevir brand name: INCIVO, Ribavirin brand name: COPEGUS, PEG-IFN brand name: PEGASYS

Primary outcomes

  1. SVR12 (Sustain Virological Response, HCV RNA Undetectable 12 Weeks Post-treatment)

    Time frame: 12 weeks post-treatment

    Proportion of subjects achieving SVR 12 (negative qualitative HCV RNA 12 weeks after therapy completion)

Secondary outcomes

  1. SVR24

    Time frame: 24 weeks post-treatment

    To evaluate the proportion of patients with undetectable HCV RNA 24 weeks after therapy completion (SVR24)

  2. Undetectable HCV RNA (ETR)

    Time frame: Wk 8 (Group A), Wk 12 (Group B), Wk 24 (Group C)

    To evaluate the proportion of patients with undetectable HCV RNA at end of treatment (ETR)

  3. Undetectable HCV RNA (Week 1)

    Time frame: Week 1 of therapy

    To evaluate the proportion of patients with undetectable HCV RNA at week 1 of therapy.

  4. Undectectable HCV RNA (Week 2)

    Time frame: Week 2 of therapy

    To evaluate the proportion of patients with undetectable HCV RNA at week 1 of therapy.

  5. Undetectable HCV RNA (Week 3)

    Time frame: Week 3 of therapy

    To evaluate the proportion of patients with undetectable HCV RNA at week 3 of therapy.

  6. Undetectable HCV RNA (Week 4)

    Time frame: Week 4 of therapy

    To evaluate the proportion of patients with undetectable HCV RNA at week 4 of therapy.

  7. Decrease in Absolute Neutrophil Count (ANC) ≤0.75

    Time frame: Baseline, Wk 8 (Group A), Wk 12 (Group B), Wk 24 (Group C)

  8. Decrease in Platelets <50

    Time frame: Baseline, Wk 8 (Group A), Wk 12 (Group B), Wk 24 (Group C)

  9. Change in Hemoglobin at End of Treatment

    Time frame: Baseline, Wk 8 (Group A), Wk 12 (Group B), Wk 24 (Group C)

    To evaluate indicators of toxicity during telaprevir based therapy

  10. Resistance-associated Variants

    Time frame: Baseline, Wk 8 (Group A), Wk 12 (Group B), Wk 24 (Group C)

    To examine the emergence of resistance-associated variants during telaprevir based therapy for early chronic infection

  11. Baseline Resistance-associated Variants

    Time frame: Baseline, Wk 8 (Group A), Wk 12 (Group B), Wk 24 (Group C)

    To correlate the presence and frequency of baseline resistance-associated variants (RAVs) with the response of Telaprevir based therapy for early chronic HCV infection.

  12. Plasma Ribavirin Levels

    Time frame: Baseline, Wk 8 (Group A), Wk 12 (Group B), Wk 24 (Group C)

    To correlate plasma ribavirin levels with treatment outcome and changes in haemoglobin during therapy

  13. CD4 and HIV RNA

    Time frame: Baseline, Wk 8 (Group A), Wk 12 (Group B), Wk 24 (Group C)

    In HIV positive participants to evaluate changes in CD4 counts and HIV RNA during telaprevir based therapy

  14. Gene IL28B Polymorphism

    Time frame: Baseline

    To examine treatment outcome by IL28B polymorphism

Sponsors and collaborators

Lead sponsor

Kirby Institute

Other Gov

Collaborators

  • Janssen-Cilag Ltd.

Registry information

Official study title

Direct Acting Antiviral (DAA) Based Therapy for Recently Acquired Hepatitis C

Acronym: DARE-C

Important dates

Study start
2013
Primary completion
2015
Study completion
2016
First posted
Dec 6, 2012
Registry last updated
Mar 29, 2017

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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