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Trial of Simplified Treatment Monitoring for 8 Weeks Glecaprevir/Pibrentasvir in Chronic Hepatitis C Patients (SMART-C)

Primary Purpose

Hepatitis C, Chronic

Status
Completed
Phase
Phase 3
Locations
International
Study Type
Interventional
Intervention
glecaprevir (300mg)/pibrentasvir (120mg)
Sponsored by
Kirby Institute
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Hepatitis C, Chronic

Eligibility Criteria

18 Years - undefined (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

  1. Have voluntarily signed the informed consent form.
  2. 18 years of age or older.
  3. Chronic HCV infection as defined by anti-HCV antibody or HCV RNA detection for greater than 6 months.
  4. HCV RNA plasma ≥ 10,000 IU/ml at screening.
  5. HCV genotype 1-6.
  6. HCV treatment naïve (no prior treatment with an approved or investigation anti-HCV medication).
  7. Stage F0-3, based on: hepatic elastography <12.5 kPa on Fibroscan® or APRI <1.0.
  8. If co-infection with HIV is documented, the subject must meet the following criteria:

    • ART naïve with CD4 T cell count >500 cells/mm3; OR
    • On a stable ART regimen (containing only permissible ART - see protocol section 3.2) for >8 weeks prior to screening visit, with CD4 T cell count >200 cells/mm3 and a plasma HIV RNA level below the limit of detection.
  9. Negative pregnancy test at screening and baseline (females of childbearing potential only).
  10. All fertile females must be using effective contraception during treatment and during the 30 days after treatment end.

Exclusion Criteria:

  1. History of any of the following:

    1. Clinically significant illness (other than HCV) or any other major medical disorder that may interfere with the participant treatment, assessment or compliance with the protocol; participants currently under evaluation for a potentially clinically significant illness (other than HCV) are also excluded.
    2. Clinical hepatic decompensation (i.e. ascites, encephalopathy or variceal haemorrhage).
    3. Solid organ transplant.
    4. History of severe, life-threatening or other significant sensitivity to any excipients of the study drugs.
  2. Any of the following lab parameters at screening:

    1. ALT > 10 x ULN
    2. AST > 10 x ULN
    3. Direct bilirubin > ULN
    4. Platelets < 90,000/μL (cells/mm3) if Fibroscan® <12.5 kPa OR < 150,000/μL (cells/mm3) if Fibroscan® is unavailable and patient is included with APRI <1
    5. Creatinine clearance (CLcr) < 50 mL/min
    6. Haemoglobin < 12g/dL for males; <11g/dL for females
    7. Albumin < LLN
    8. INR > 1.5 ULN unless subject has known haemophilia or is stable on an anticoagulant regimen affecting INR
  3. Pregnant or breastfeeding female.
  4. HBV infection (HBsAg positive).
  5. Use of prohibited concomitant medications as described in protocol section 5.2.
  6. Chronic use of systemically administered immunosuppressive agents (e.g. prednisone equivalent > 10 mg/day for >2 weeks).
  7. Therapy with any anti-neoplastic or immunomodulatory treatment (including supraphysiologic doses of steroids and radiation) ≤6 months prior to the first dose of study drug.
  8. Any investigational drug ≤6 weeks prior to the first dose of study drug.
  9. Ongoing severe psychiatric disease as judged by the treating physician.
  10. Positive result of a urine drug screen at the Screening Visit for opiates, barbiturates, amphetamines, cocaine, benzodiazepines, phencyclidine, propoxyphene, or alcohol, with the exception of a positive result (including methadone) associated with documented short-term use or chronic stable use of a prescribed medication in that class.
  11. Injecting drug use within the previous six months.
  12. Inability or unwillingness to provide informed consent or abide by the requirements of the study.

Sites / Locations

  • Beth Israel Deaconess Medical Center
  • New York University Langone Medical Center
  • Duke University Medical Center
  • SSM Health Dean Medical Group
  • East Sydney Doctors
  • St Vincent's Hospital Sydney
  • Holdsworth House Medical Practice
  • Royal Adelaide Hospital
  • The Alfred Hospital
  • St Vincent's Hospital Melbourne
  • Lair Centre
  • (G.I.R.I.) GI Research Institute
  • William Osler Health System
  • St Joseph's Healthcare Hamilton
  • Toronto General Hospital
  • McGill University Health Centre (MUHC)
  • CHU de Québec-Université Laval
  • Hopital Henri Mondor
  • Hopital Saint Joseph
  • Hopital Saint Antoine
  • zibp - Zentrum für Infektiologie Berlin Prenzlauer Berg GmbH
  • Center for HIV and Hepatogastroenterology
  • Hannover Medical School
  • CIM-Centrum fuer Interdisziplinaere Medizin GmbH
  • Auckland City Hospital
  • Calder Center
  • Christchurch Hospital
  • Dunedin Hospital
  • Inselspital - Universitaetsspital Bern
  • University Hospital Zurich
  • Barts Health
  • King's College Hospital
  • Imperial College Healthcare NHS Trust (St Mary's Hospital)

Arms of the Study

Arm 1

Arm 2

Arm Type

Other

Experimental

Arm Label

Standard monitoring schedule

Simplified monitoring schedule

Arm Description

Participants will have on-treatment clinic visits at weeks 4 and 8. Participants have also phone contact-based visits at weeks 4 and 8 (1-2 days prior to scheduled clinic visits).

Participants will have no on-treatment clinic visits at weeks 4 and 8. Participants have phone contact-based visits at weeks 4 and 8.

Outcomes

Primary Outcome Measures

Undetectable HCV RNA (ITT Population)
Number of participants with undetectable HCV RNA based on ITT population.

Secondary Outcome Measures

Undetectable HCV RNA (mITT Population)
Number of participants with undetectable HCV RNA based on mITT population.
Treatment and Study Visits Adherence
Number adherent to treatment and study visits (on-treatment adherence and early treatment discontinuation).
Health-related Quality of Life
Change in health-related quality of life score pre and post-treatment (measured by EQ-5D-3L). The EQ visual analogue scale records the patient's self-rated health on a vertical visual analogue scale where the endpoints are labelled 'Best imaginable health state' (value of 100) and 'Worst imaginable health state' (value of 0). The VAS can be used as a quantitative measure of health outcome that reflects the patient's own judgement. Higher scores indicate better outcomes.
Number of Virological Failure Participants With NS3 and NS5A Polymorphisms at Baseline and Post-treatment Week 12
Distribution of baseline resistance associated substitutions (RAS) in participants with virological failures. Baseline polymorphisms were detected by Sanger sequencing at the following amino acid positions: NS3: 36, 56, 80, 155, 156, 166, 168 NS5A: 24, 28, 30, 31, 58, 93
Patient Treatment Satisfaction
Patient was satisfied with their treatment follow-up plan.

Full Information

First Posted
April 7, 2017
Last Updated
December 9, 2019
Sponsor
Kirby Institute
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1. Study Identification

Unique Protocol Identification Number
NCT03117569
Brief Title
Trial of Simplified Treatment Monitoring for 8 Weeks Glecaprevir/Pibrentasvir in Chronic Hepatitis C Patients
Acronym
SMART-C
Official Title
A Phase IIIb, Open-label, Multicentre, International Randomised Controlled Trial of Simplified Treatment Monitoring for 8 Weeks Glecaprevir (300mg)/Pibrentasvir (120mg) in Chronic HCV Treatment naïve Patients Without Cirrhosis
Study Type
Interventional

2. Study Status

Record Verification Date
December 2019
Overall Recruitment Status
Completed
Study Start Date
August 21, 2017 (Actual)
Primary Completion Date
December 19, 2018 (Actual)
Study Completion Date
December 19, 2018 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Kirby Institute

4. Oversight

Studies a U.S. FDA-regulated Drug Product
Yes
Studies a U.S. FDA-regulated Device Product
No
Data Monitoring Committee
Yes

5. Study Description

Brief Summary
The aim of this study is to determine if treatment monitoring schedule for chronic HCV patients treated with glecaprevir (300mg)/pibrentasvir (120mg) can be simplified. Data has shown that direct acting antiviral (DAA) regimen of glecaprevir (300mg)/pibrentasvir (120mg), a protease inhibitor and NS5A inhibitor respectively , provides key features for HCV treatment simplification. Eligible participants (naïve pre-cirrhosis chronic HCV patients) will be randomized (1:2) to the standard or simplified monitoring arm and will receive treatment for 8 weeks. One post treatment visit will be conducted 12 weeks after the final dose of study medication to evaluate the proportion of patients with undetectable HCV RNA at this timepoint (SVR12).
Detailed Description
The capacity to scale-up interferon-free DAA therapy would be enhanced by simplified treatment monitoring strategies. The "next generation" DAA regimen of glecaprevir (300mg)/pibrentasvir (120mg), a protease inhibitor and NS5A inhibitor, provides key features for HCV treatment simplification, including on-treatment monitoring: 1) pangenotypic activity with extremely high efficacy (SVR>95%); 2) no relationship between time to undetectable HCV RNA and SVR; 3) minimal drug-related toxicity; 4) ease of dosing (three pills once daily); and short duration (8 weeks in non-cirrhosis and 12 weeks in cirrhosis for treatment naïve patients). In phase II and III clinical trials in participants without cirrhosis, 8 weeks of glecaprevir (300mg)/pibrentasvir (120mg) has provided intention-to-treat SVR rates of 99.1%, 98%, 97%, and 93.1% in genotype 1, 2, 3, and 4-6 populations, respectively. Current standard on-treatment monitoring in clinical trials involves clinic-based visits every 4 weeks. In the DAA era where treatments are highly tolerable, effective and short duration, this intensive monitoring strategy may no longer be required. A simplified on-treatment monitoring strategy is hypothesised to be non-inferior to the standard clinical trial on treatment monitoring strategy. If successful, a simplified on-treatment monitoring strategy is likely to be highly attractive to patients, clinicians and health care payers. It has the potential to improve the rapid scale up of treatment providing population level benefits in the reduction of global hepatitis C disease burden. This study will be conducted as a Phase IIIb, randomised, controlled, multicentre, international trial. There will be a maximum screening period of 6 weeks prior to Baseline. Eligible patients will be randomised into one of two on-treatment monitoring strategies; standard clinical trial monitoring (4-weekly on-treatment visits) vs simplified monitoring (no on-treatment visits). Randomisation will be 1:2 (standard vs simplified) and all participants will receive treatment with glecaprevir (300mg)/pibrentasvir (120mg) for 8 weeks. All participants will attend the clinic for screening and baseline visit. Randomisation will occur at the baseline visit. The two on-treatment monitoring strategies will differ as follows: Standard monitoring arm participants will have on-treatment clinic visits at weeks 4 and 8 (EoT). Simplified monitoring arm participants will have no on-treatment clinic visits. Study nurse phone contact will also be made to participants in BOTH arms 1-2 days prior Week 4 and EoT (Week 8) visits to provide standardized reporting of adverse events, concomitant medication and adherence. One post treatment clinic visit will be conducted at SVR12 (week 20) for all participants.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Hepatitis C, Chronic

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 3
Interventional Study Model
Parallel Assignment
Masking
None (Open Label)
Allocation
Randomized
Enrollment
380 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Standard monitoring schedule
Arm Type
Other
Arm Description
Participants will have on-treatment clinic visits at weeks 4 and 8. Participants have also phone contact-based visits at weeks 4 and 8 (1-2 days prior to scheduled clinic visits).
Arm Title
Simplified monitoring schedule
Arm Type
Experimental
Arm Description
Participants will have no on-treatment clinic visits at weeks 4 and 8. Participants have phone contact-based visits at weeks 4 and 8.
Intervention Type
Drug
Intervention Name(s)
glecaprevir (300mg)/pibrentasvir (120mg)
Other Intervention Name(s)
Mavyret
Intervention Description
glecaprevir (300mg)/pibrentasvir (120mg) for 8 weeks
Primary Outcome Measure Information:
Title
Undetectable HCV RNA (ITT Population)
Description
Number of participants with undetectable HCV RNA based on ITT population.
Time Frame
12 weeks post end of treatment (SVR12)
Secondary Outcome Measure Information:
Title
Undetectable HCV RNA (mITT Population)
Description
Number of participants with undetectable HCV RNA based on mITT population.
Time Frame
12 weeks post end of treatment (SVR12)
Title
Treatment and Study Visits Adherence
Description
Number adherent to treatment and study visits (on-treatment adherence and early treatment discontinuation).
Time Frame
12 weeks post end of treatment (SVR12)
Title
Health-related Quality of Life
Description
Change in health-related quality of life score pre and post-treatment (measured by EQ-5D-3L). The EQ visual analogue scale records the patient's self-rated health on a vertical visual analogue scale where the endpoints are labelled 'Best imaginable health state' (value of 100) and 'Worst imaginable health state' (value of 0). The VAS can be used as a quantitative measure of health outcome that reflects the patient's own judgement. Higher scores indicate better outcomes.
Time Frame
Screening and 12 weeks post end of treatment (SVR12)
Title
Number of Virological Failure Participants With NS3 and NS5A Polymorphisms at Baseline and Post-treatment Week 12
Description
Distribution of baseline resistance associated substitutions (RAS) in participants with virological failures. Baseline polymorphisms were detected by Sanger sequencing at the following amino acid positions: NS3: 36, 56, 80, 155, 156, 166, 168 NS5A: 24, 28, 30, 31, 58, 93
Time Frame
Baseline and 12 weeks post-treatment
Title
Patient Treatment Satisfaction
Description
Patient was satisfied with their treatment follow-up plan.
Time Frame
12 weeks post end of treatment (SVR12)
Other Pre-specified Outcome Measures:
Title
Common Adverse Events (Safety Outcome)
Description
Proportion of patients with common adverse events (reported in greater than 5%).
Time Frame
12 weeks post end of treatment (SVR12)
Title
Severe/Life Threatening Adverse Events (Safety Outcome)
Description
Proportion of patients with at least one severe or potentially life threatening (grade 3 or 4) adverse event.
Time Frame
12 weeks post end of treatment (SVR12)
Title
Provider Acceptability of Simplified Monitoring Strategy (Exploratory Outcome)
Description
Provider acceptability of simplified monitoring strategy measured by study specific questionnaire completed by each site Principal Investigator and the primary Research Nurse.
Time Frame
12 weeks post end of treatment (SVR12)

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: Have voluntarily signed the informed consent form. 18 years of age or older. Chronic HCV infection as defined by anti-HCV antibody or HCV RNA detection for greater than 6 months. HCV RNA plasma ≥ 10,000 IU/ml at screening. HCV genotype 1-6. HCV treatment naïve (no prior treatment with an approved or investigation anti-HCV medication). Stage F0-3, based on: hepatic elastography <12.5 kPa on Fibroscan® or APRI <1.0. If co-infection with HIV is documented, the subject must meet the following criteria: ART naïve with CD4 T cell count >500 cells/mm3; OR On a stable ART regimen (containing only permissible ART - see protocol section 3.2) for >8 weeks prior to screening visit, with CD4 T cell count >200 cells/mm3 and a plasma HIV RNA level below the limit of detection. Negative pregnancy test at screening and baseline (females of childbearing potential only). All fertile females must be using effective contraception during treatment and during the 30 days after treatment end. Exclusion Criteria: History of any of the following: Clinically significant illness (other than HCV) or any other major medical disorder that may interfere with the participant treatment, assessment or compliance with the protocol; participants currently under evaluation for a potentially clinically significant illness (other than HCV) are also excluded. Clinical hepatic decompensation (i.e. ascites, encephalopathy or variceal haemorrhage). Solid organ transplant. History of severe, life-threatening or other significant sensitivity to any excipients of the study drugs. Any of the following lab parameters at screening: ALT > 10 x ULN AST > 10 x ULN Direct bilirubin > ULN Platelets < 90,000/μL (cells/mm3) if Fibroscan® <12.5 kPa OR < 150,000/μL (cells/mm3) if Fibroscan® is unavailable and patient is included with APRI <1 Creatinine clearance (CLcr) < 50 mL/min Haemoglobin < 12g/dL for males; <11g/dL for females Albumin < LLN INR > 1.5 ULN unless subject has known haemophilia or is stable on an anticoagulant regimen affecting INR Pregnant or breastfeeding female. HBV infection (HBsAg positive). Use of prohibited concomitant medications as described in protocol section 5.2. Chronic use of systemically administered immunosuppressive agents (e.g. prednisone equivalent > 10 mg/day for >2 weeks). Therapy with any anti-neoplastic or immunomodulatory treatment (including supraphysiologic doses of steroids and radiation) ≤6 months prior to the first dose of study drug. Any investigational drug ≤6 weeks prior to the first dose of study drug. Ongoing severe psychiatric disease as judged by the treating physician. Positive result of a urine drug screen at the Screening Visit for opiates, barbiturates, amphetamines, cocaine, benzodiazepines, phencyclidine, propoxyphene, or alcohol, with the exception of a positive result (including methadone) associated with documented short-term use or chronic stable use of a prescribed medication in that class. Injecting drug use within the previous six months. Inability or unwillingness to provide informed consent or abide by the requirements of the study.
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Gregory Dore
Organizational Affiliation
Kirby Institute, University of New South Wales Sydney, Australia
Official's Role
Principal Investigator
Facility Information:
Facility Name
Beth Israel Deaconess Medical Center
City
Boston
State/Province
Massachusetts
ZIP/Postal Code
02215
Country
United States
Facility Name
New York University Langone Medical Center
City
New York
State/Province
New York
ZIP/Postal Code
10016
Country
United States
Facility Name
Duke University Medical Center
City
Durham
State/Province
North Carolina
ZIP/Postal Code
27710
Country
United States
Facility Name
SSM Health Dean Medical Group
City
Madison
State/Province
Wisconsin
ZIP/Postal Code
53715
Country
United States
Facility Name
East Sydney Doctors
City
Sydney
State/Province
New South Wales
ZIP/Postal Code
2010
Country
Australia
Facility Name
St Vincent's Hospital Sydney
City
Sydney
State/Province
New South Wales
ZIP/Postal Code
2010
Country
Australia
Facility Name
Holdsworth House Medical Practice
City
Sydney
State/Province
New South Wales
Country
Australia
Facility Name
Royal Adelaide Hospital
City
Adelaide
State/Province
South Australia
Country
Australia
Facility Name
The Alfred Hospital
City
Melbourne
State/Province
Victoria
ZIP/Postal Code
3004
Country
Australia
Facility Name
St Vincent's Hospital Melbourne
City
Melbourne
State/Province
Victoria
ZIP/Postal Code
3065
Country
Australia
Facility Name
Lair Centre
City
Vancouver
State/Province
British Columbia
ZIP/Postal Code
V5Z 1H2
Country
Canada
Facility Name
(G.I.R.I.) GI Research Institute
City
Vancouver
State/Province
British Columbia
ZIP/Postal Code
V6Z 2K5
Country
Canada
Facility Name
William Osler Health System
City
Brampton
State/Province
Ontario
ZIP/Postal Code
L6R 3J7
Country
Canada
Facility Name
St Joseph's Healthcare Hamilton
City
Hamilton
State/Province
Ontario
ZIP/Postal Code
L8N 4A6
Country
Canada
Facility Name
Toronto General Hospital
City
Toronto
State/Province
Ontario
ZIP/Postal Code
ON M57 2S8
Country
Canada
Facility Name
McGill University Health Centre (MUHC)
City
Montréal
State/Province
Quebec
ZIP/Postal Code
H4A 3J1
Country
Canada
Facility Name
CHU de Québec-Université Laval
City
Québec
State/Province
Quebec
ZIP/Postal Code
G1V 4G2
Country
Canada
Facility Name
Hopital Henri Mondor
City
Créteil
ZIP/Postal Code
94000
Country
France
Facility Name
Hopital Saint Joseph
City
Marseille
ZIP/Postal Code
13008
Country
France
Facility Name
Hopital Saint Antoine
City
Paris
ZIP/Postal Code
75012
Country
France
Facility Name
zibp - Zentrum für Infektiologie Berlin Prenzlauer Berg GmbH
City
Berlin
ZIP/Postal Code
10439
Country
Germany
Facility Name
Center for HIV and Hepatogastroenterology
City
Düsseldorf
ZIP/Postal Code
40237
Country
Germany
Facility Name
Hannover Medical School
City
Hanover
ZIP/Postal Code
30625
Country
Germany
Facility Name
CIM-Centrum fuer Interdisziplinaere Medizin GmbH
City
Münster
ZIP/Postal Code
48143
Country
Germany
Facility Name
Auckland City Hospital
City
Auckland
ZIP/Postal Code
1142
Country
New Zealand
Facility Name
Calder Center
City
Auckland
Country
New Zealand
Facility Name
Christchurch Hospital
City
Christchurch
Country
New Zealand
Facility Name
Dunedin Hospital
City
Dunedin
Country
New Zealand
Facility Name
Inselspital - Universitaetsspital Bern
City
Bern
ZIP/Postal Code
3010
Country
Switzerland
Facility Name
University Hospital Zurich
City
Zürich
ZIP/Postal Code
8091
Country
Switzerland
Facility Name
Barts Health
City
London
ZIP/Postal Code
E1 1BB
Country
United Kingdom
Facility Name
King's College Hospital
City
London
ZIP/Postal Code
SE5 9RS
Country
United Kingdom
Facility Name
Imperial College Healthcare NHS Trust (St Mary's Hospital)
City
London
ZIP/Postal Code
W2 1NY
Country
United Kingdom

12. IPD Sharing Statement

Plan to Share IPD
Yes
IPD Sharing Plan Description
No individual participant data will be shared. The results of the project will be presented at scientific meetings, and published in peer reviewed scientific literature. Sharing of data generated by this project is an essential part of our proposed activities and will be carried out in several different ways. We plan to make our results available to the community of scientists interested in recently acquired hepatitis C, community organisations representing the affected communities and participants. We also welcome collaboration with others who could make use of data and samples.
IPD Sharing Time Frame
Submitted as part of J Hepatology accepted publication
IPD Sharing Access Criteria
Access via the J Hepatology accepted publication
Citations:
PubMed Identifier
31655134
Citation
Dore GJ, Feld JJ, Thompson A, Martinello M, Muir AJ, Agarwal K, Mullhaupt B, Wedemeyer H, Lacombe K, Matthews GV, Schultz M, Klein M, Hezode C, Mercade GE, Kho D, Petoumenos K, Marks P, Tatsch F, Dos Santos AGP, Gane E; SMART-C Study Group. Simplified monitoring for hepatitis C virus treatment with glecaprevir plus pibrentasvir, a randomised non-inferiority trial. J Hepatol. 2020 Mar;72(3):431-440. doi: 10.1016/j.jhep.2019.10.010. Epub 2019 Oct 23.
Results Reference
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Trial of Simplified Treatment Monitoring for 8 Weeks Glecaprevir/Pibrentasvir in Chronic Hepatitis C Patients

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