- ICH GCP
- US Clinical Trials Registry
- Klinisk forsøg NCT02156570
DAA-based Therapy for Recently Acquired Hepatitis C II (DAA = Directly Acting Antiviral) (DARE-C II)
An Interferon Sparing Strategy of Sofosbuvir Plus Ribavirin for the Treatment of Recently Acquired Hepatitis C Infection
The purpose of the study is to examine whether patients who have acute or early chronic hepatitis C virus (HCV) infection can be treated effectively and safely with an interferon-sparing regimen that combines a new direct acting antiviral drug (sofosbuvir) with one of the standard treatments for chronic hepatitis C (ribavirin). In particular, this study will investigate whether treatment of acute or early chronic HCV can be shortened. The study will assess efficacy by looking at the proportion of people who clear the virus (have no virus detectable in their blood) at the end of treatment, and 1, 3 and 6 months after treatment.
The hypothesis is that short course (6 weeks) dual therapy using sofosbuvir and RBV will result in successful virological eradication in the majority (≥80%) of subjects treated for recently acquired HCV.
Studieoversigt
Status
Betingelser
Intervention / Behandling
Detaljeret beskrivelse
To evaluate the efficacy, safety and acceptability of an interferon-sparing strategy with sofosbuvir and ribavirin for the treatment of recently acquired HCV infection.
An open label single arm multicentre study Treatment of participants: Sofosbuvir 400mg daily with weight based ribavirin (1000mg <75 kg, 1200mg >/= 75kg) Duration of treatment will be 6 weeks for all subjects followed by 52 weeks of observational follow-up Total study duration = 58 weeks Primary endpoint: SVR 12
Undersøgelsestype
Tilmelding (Forventet)
Fase
- Fase 4
Kontakter og lokationer
Studiesteder
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New South Wales
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Sydney, New South Wales, Australien, 2010
- St Vincent's Hospital
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South Australia
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Adelaide, South Australia, Australien, 5000
- Royal Adelaide Hospital
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Victoria
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Melbourne, Victoria, Australien, 3050
- Royal Melbourne Hospital
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Melbourne, Victoria, Australien, 3004
- Alfred Hospital
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-
-
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Grafton
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Auckland, Grafton, New Zealand, 1023
- Auckland City Hospital
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-
Deltagelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
Inclusion Criteria:
- Provision of written informed consent
- Male and female patients aged 18 years and above
- Willing to use two effective methods of contraception during the treatment period and 24 weeks post.
- HBsAg negative
- Detectable HCV RNA at screening (>10,000 IU/ml), and in the opinion of the investigator is unlikely to demonstrate spontaneous viral clearance
- Compensated liver disease (Child-Pugh A)
- Negative pregnancy test at screening and 24 hours prior to first dose of study drugs
- Medically stable on the basis of physical examination, medical history and vital signs
- Adequate English to provide reliable responses to the study questionnaires
- Recent hepatitis C infection, as defined by: A) i) First anti-HCV Ab or HCV RNA positive within the previous 6 months and ii) Documented anti-HCV Ab negative within the 24 months prior to anti-HCV antibody positive result, OR B) i) First anti-HCV Ab or HCV RNA positive within the previous 6 months and ii) acute clinical hepatitis (jaundice or ALT> 10 X ULN) within the previous 12 months prior to first positive HCV antibody or HCV RNA, with no other cause of acute hepatitis identifiable
If co-infection with HIV is documented, the subject must meet the following criteria:
- Antiretroviral (ARV) untreated for >8 weeks preceding screening visit with CD4 T cell count >500 cells/mm3 OR
- On a stable ARV regimen for >8 weeks prior to screening visit, with CD4 T cell count >200 cells/mm3 and an undetectable plasma HIV RNA level.
Exclusion Criteria:
- Standard exclusions to RBV therapy
- Pregnancy/lactation or male subjects whose female partners are pregnant
- Subject has a history of decompensated liver disease: history of ascites, hepatic encephalopathy, or bleeding oesophageal varices, and/or any of the following screening laboratory results: a.INR of ≥1.5; Serum albumin <3.3 g/dL; Serum total bilirubin >1.8 times upper limit of normal, unless isolated in subjects with Gilbert's syndrome.
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Behandling
- Tildeling: N/A
- Interventionel model: Enkelt gruppeopgave
- Maskning: Ingen (Åben etiket)
Våben og indgreb
Deltagergruppe / Arm |
Intervention / Behandling |
---|---|
Eksperimentel: Sofosbuvir and ribavirin
Sofosbuvir tablet 400 mg daily Ribavirin tablet weight based dosing (1000mg <75 kg, 1200mg >/= 75kg) daily Treatment will be for 6 weeks in all participants. |
Sofosbuvir 400mg daily plus weight-based dosing ribavirin (1000mg <75kg, 1200mg >/= 75 kg) Treatment will be for 6 weeks in all participants.
Andre navne:
|
Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
---|---|---|
SVR 12
Tidsramme: 12 weeks post treatment
|
Proportion of patients with undetectable HCV RNA by TaqMan 12 weeks after therapy completion (SVR 12 - Week 18)
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12 weeks post treatment
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Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
---|---|---|
SVR 24
Tidsramme: 24 weeks post treatment
|
Proportion of patients with undetectable HCV RNA by TaqMan 24 weeks after therapy completion (SVR 24 - Week 30)
|
24 weeks post treatment
|
Andre resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
---|---|---|
End of treatment response
Tidsramme: End of treatment week 6
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Proportion of patients with undetectable HCV RNA at end of therapy (ETR - week 6)
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End of treatment week 6
|
SVR 4
Tidsramme: 4 weeks post treatment
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Proportion of patients with undetectable HCV RNA by TaqMan 4 weeks after therapy completion (SVR 4 - Week 10)
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4 weeks post treatment
|
Follow up 1 year
Tidsramme: 1 year post treatment
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Proportion of patients with undetectable HCV RNA at end of study follow-up (FU1 - Week 58)
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1 year post treatment
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Undetectable HCV RNA
Tidsramme: Week 1, 2, 3 and 4 of treatment
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Proportion of patients with undetectable HCV RNA at weeks 1, 2, 3 and 4
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Week 1, 2, 3 and 4 of treatment
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Indicators of toxicity (ALT, HB, Neutrophils, Platelets)
Tidsramme: Baseline until week 4 of treatment
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To evaluate indicators of toxicity (ALT, HB, Neutrophils, Platelets) during therapy
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Baseline until week 4 of treatment
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Plasma ribavirin levels and haemoglobin
Tidsramme: Baseline to week 4 of treatment
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To correlate plasma ribavirin levels with treatment outcome and changes in haemoglobin during therapy
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Baseline to week 4 of treatment
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Incidence of reinfection
Tidsramme: End of treatment until follow up 1 year
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Incidence of reinfection after documented SVR
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End of treatment until follow up 1 year
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Samarbejdspartnere og efterforskere
Sponsor
Efterforskere
- Ledende efterforsker: Gail Matthews, MbChB FRACP, Kirby Institute
Publikationer og nyttige links
Hjælpsomme links
Datoer for undersøgelser
Studer store datoer
Studiestart
Primær færdiggørelse (Faktiske)
Studieafslutning (Faktiske)
Datoer for studieregistrering
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Yderligere relevante MeSH-vilkår
- Sygdomme i fordøjelsessystemet
- RNA-virusinfektioner
- Virussygdomme
- Infektioner
- Blodbårne infektioner
- Overførbare sygdomme
- Leversygdomme
- Flaviviridae infektioner
- Hepatitis, viral, menneskelig
- Enterovirus infektioner
- Picornaviridae infektioner
- Hepatitis
- Hepatitis A
- Hepatitis C
- Molekylære mekanismer for farmakologisk virkning
- Anti-infektionsmidler
- Antivirale midler
- Antimetabolitter
- Sofosbuvir
- Ribavirin
Andre undersøgelses-id-numre
- VHCRP1206
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