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Evaluation of a Multi-disciplinary Approach for the Treatment of Hepatitis C in IDUs (HI-LO Study)

28 november 2016 uppdaterad av: University of British Columbia
Although injection drug users (IDUs) account for over 70% of new cases of HCV infection/year, there is no consensus on how to approach their medical care. In some Canadian centres, patients must be free of recreational drug use for as long as 6 months before being considered for HCV therapy. This is not consistent with current North American guidelines. Over the past 5 years, we have developed a successful program for the treatment of HIV infection in this population, based on a multi-disciplinary comprehensive program including directly observed therapy (DOT). Even though the duration of therapy for HCV is shorter than for HIV (as little as 6 months vs. life-long), we must address issues of administration of a weekly injection (interferon), twice daily pills (ribavirin) and the risk of significant side effects (including anxiety and depression) to successfully expand our program to treat this disease. Further, it may be that even if the program is successful, its benefits will be negated by HCV re-infection due to continued risk behaviors for its transmission.

Studieöversikt

Status

Avslutad

Betingelser

Intervention / Behandling

Detaljerad beskrivning

We will determine the HCV infection status of potential study subjects within a cohort of 2,000 IDUs receiving care in our centres (Appendix 1). For those who carry HCV antibodies (expected n = 1800), a test for HCV viremia and genotype will be performed. By these evaluations, we expect up to 600 individuals to be viremic and carry HCV genotype 2 or 3. Within this group, 200 consecutive patients (100/study strategy) will receive therapy for HCV, based on their eligibility to do so according to Provincial guidelines for the reimbursement of medications. Patient allocation will be according to the study site where they regularly receive care. At two sites, patients will be enrolled in a DOT program with on-site full-time nursing and counseling support (high intensity, 50 patients/site). At the other two sites, patients will receive medication on a weekly basis and will have access to part-time nursing and counseling support (low intensity, 50 patients/site). Medical follow-up will be according to current clinical standards, and the primary endpoint of the study will be the rate of sustained virologic response (SVR) six months after completion of treatment. Within the study described above, we will use standardized methodologies to calculate the total health care costs related to the treatment of HCV infection. We will also assess the effect of treatment on the quality of life (QoL) of study participants.

Studietyp

Interventionell

Inskrivning (Faktisk)

370

Fas

  • Inte tillämpbar

Kontakter och platser

Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.

Studieorter

  • Kanada
    • British Columbia
      • Vancouver, British Columbia, Kanada, V6B 1R3
        • Pender Community Health Centre

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

19 år och äldre (Vuxen, Äldre vuxen)

Tar emot friska volontärer

Nej

Kön som är behöriga för studier

Allt

Beskrivning

Inclusion Criteria:

  • Age > 19 years;
  • Serum HCV-RNA pos;
  • HCV genotype 2 or 3;
  • HBsAg neg;
  • serum ALT > 1.5x upper limit normal > 3 months;
  • Illicit drug use in the past year;
  • Agreement from each participant of childbearing age to practice contraception;
  • Absence of other contraindications to the initiation of therapy as determined by the health care team;
  • Ability to provide informed consent.

Exclusion Criteria:

  • Any cause for chronic liver disease other than HCV (including alcohol use >350 g/wk);
  • Pregnant or breastfeeding women;
  • Active HBV infection;
  • Hemolytic anemia;
  • Decompensated cirrhosis or portal hypertension or PT-INR > 1.3 or Child-Hugh class > A;
  • Active suicidal ideation, psychosis, mania or hypomania;
  • Serum creatinine > 180 µg/mL;
  • Hemoglobin < 120 g/L in men or 110 g/L in women;
  • Platelets < 90 x 109/L;
  • Neutrophils < 1.5 x 109/L;
  • Active autoimmune disease;
  • NYHA disease > grade 2;
  • Psoriasis requiring systemic therapy;
  • Active malignancy apart from non melanoma skin cancer;
  • Use of systemic immunosuppressant agents;
  • Prior treatment of HCV with interferon or ribavirin;
  • HIV positive with CD4 count <300 cells/mm3 or receiving didanosine (due to interaction with ribavirin);
  • Life expectancy < 2 years.

Studieplan

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

  • Primärt syfte: Behandling
  • Tilldelning: Icke-randomiserad
  • Interventionsmodell: Parallellt uppdrag
  • Maskning: Ingen (Open Label)

Vapen och interventioner

Deltagargrupp / Arm
Intervention / Behandling
Aktiv komparator: 1
The 4 participating sites are designated either High Intensity or Low Intensity. High Intensity sites have access to: full time specialist physicians, access to full time nurses and counselors. All weekly pegylated interferon injections will be administered by clinic staff and ribavirin will be dispensed in weekly medication pack.
Läkemedel: Interferon injections and ribavirin
Weekly pegylated interferon injections will be administered by clinic staff and ribavirin will be dispensed in weekly medication pack.
Läkemedel: Interferon injections and ribavirin
Patients will be offered the option of self or nurse administered pegylated interferon injections on an appointment basis. Ribavirin will be dispensed biweekly. The treatment medication cannot be stored at the clinic; it must be the subjects responsibility.
Aktiv komparator: 2
The 4 participating sites are designated either High Intensity or Low Intensity. In the Low intensity group, all patients will have access to: full time primary care physicians, specialist physicians and access to part time nurse or counselor by appointment. Patients will be offered the option of self or nurse administered pegylated interferon injections on an appointment basis. Ribavirin will be dispensed biweekly. The treatment medication cannot be stored at the clinic; it must be the subjects responsibility.
Läkemedel: Interferon injections and ribavirin
Weekly pegylated interferon injections will be administered by clinic staff and ribavirin will be dispensed in weekly medication pack.
Läkemedel: Interferon injections and ribavirin
Patients will be offered the option of self or nurse administered pegylated interferon injections on an appointment basis. Ribavirin will be dispensed biweekly. The treatment medication cannot be stored at the clinic; it must be the subjects responsibility.

Vad mäter studien?

Primära resultatmått

Resultatmått
Rate of sustained virologic response (SVR) six months after completion of treatment.

Sekundära resultatmått

Resultatmått
Livskvalité
Kosta
Adherence to therapy

Samarbetspartners och utredare

Det är här du hittar personer och organisationer som är involverade i denna studie.

Sponsor

University of British Columbia

Samarbetspartners

Canadian Institutes of Health Research (CIHR)

Utredare

  • Huvudutredare: Brian Conway, MD, University of British Columbia

Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart

1 juni 2007

Primärt slutförande (Faktisk)

1 augusti 2010

Avslutad studie (Faktisk)

1 december 2012

Studieregistreringsdatum

Först inskickad

14 november 2006

Först inskickad som uppfyllde QC-kriterierna

14 november 2006

Första postat (Uppskatta)

15 november 2006

Uppdateringar av studier

Senaste uppdatering publicerad (Uppskatta)

30 november 2016

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

28 november 2016

Senast verifierad

1 november 2016

Mer information

Termer relaterade till denna studie

Nyckelord

Ytterligare relevanta MeSH-villkor

Andra studie-ID-nummer

  • C06-0192

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