- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03462576
Companion Protocol for Methacetin Breath Test (MBT) in Conatus Protocol IDN-6556-17
Companion Protocol for the ¹³C-Methacetin Breath Test Using the BreathID® MCS System for Conatus Phase 2 Study of Emricasan, an Oral Caspase Inhibitor, Under Protocol IDN-6556-17
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
The protocol is intended to validate the ability of the MBT to predict deterioration by 48 weeks for all subjects, and at later time points for those followed longer, for subjects with decompensated NASH cirrhosis in the placebo treatment arm of Conatus' study IDN-6556-17.
As one of the Conatus' study secondary objectives, this companion protocol is designed to assess improvement in liver metabolic function as measured by Methacetin Breath Test (MBT) [ Time Frame: Baseline - Final Treatment Visit (at least 48 weeks to a max of 120 weeks) ].
Study Type
Enrollment (Actual)
Contacts and Locations
Study Locations
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Florida
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Lakewood Ranch, Florida, United States, 34211
- Florida Digestive Health Specialists Research Institute
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Male or female subjects 18 years or older, able to provide written informed consent and able to understand and willing to comply with the requirements of the study.
- Cirrhosis due to NASH with exclusion of other causes of cirrhosis (e.g. chronic viral hepatitis, alcoholic liver disease, etc.)
- At least one of the following: a) history of variceal hemorrhage (more than 3 months prior to day 1) documented on endoscopy and requiring blood transfusion, b) history of at least moderate ascites (on physical exam or imaging) currently treated with diuretics.
- MELD score ≥12 and ≤20 during screening
- Albumin ≥2.5 g/dL during screening
- Serum creatinine ≤1.5 mg/dL during screening
Exclusion Criteria:
- Evidence of severe decompensation
- Non-cirrhotic portal hypertension
- Child-Pugh score ≥10
- Current use of anticoagulants that affect prothrombin time or international normalized ratio
- ALT >3 times upper limit of normal (ULN) or AST >5 times ULN during screening
- Initiation or discontinuation of non-selective beta blockers within 1 month of screening
- Transjugular intrahepatic portosystemic shunt or other porto-systemic bypass procedure within 1 year of screening or previously requiring revision
- Alpha-fetoprotein >50 ng/mL in the last year
- History of hepatocellular carcinoma (HCC) or evidence of HCC
- History of malignancies other than HCC, unless successfully treated with curative intent and believed to be cured
- Prior liver transplant
- Uncontrolled diabetes mellitus (HbA1c >9%)
- Change in diabetes medications or vitamin E within 3 months of screening
- Restrictive bariatric surgery or bariatric device within 1 year of screening or prior malabsorptive bariatric surgery
- Symptoms of biliary colic unless resolved following cholecystectomy
- History of significant alcohol consumption within the past 5 years
- Current use of medications that are considered inhibitors of organic anion transporting polypeptide OATP1B1 and OATP1B3 transporters
- Prolongation of screening (pre-treatment) QTcF interval of >500 msecs, or history or presence of clinically concerning cardiac arrhythmias
- Significant systemic or major illness other than liver disease
- Human immunodeficiency virus infection
- Use of alcohol, controlled substances (including inhaled or injected drugs), or non-prescribed use of prescription drugs within 1 year of screening to the point of interfering with the subject's ability to comply with study procedures and study drug administration in the investigator's judgement
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Diagnostic
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Triple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Emricasan 25mg
The study treatment duration will be at least 48 weeks with study visits every 4 weeks up to Week 48 and every 8 weeks after Week 48.
|
A breath analyzer will be used to measure changes in carbon 12 to carbon13 ratio as a result of metabolism of the Methacetin substrate before and after treatment.
Investigational drug for NASH treatment in Main Conatus protocol
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Experimental: Emricasan 5mg
The study treatment duration will be at least 48 weeks with study visits every 4 weeks up to Week 48 and every 8 weeks after Week 48.
|
A breath analyzer will be used to measure changes in carbon 12 to carbon13 ratio as a result of metabolism of the Methacetin substrate before and after treatment.
Investigational drug for NASH treatment in Main Conatus protocol
|
Placebo Comparator: Placebo
The study treatment duration will be at least 48 weeks with study visits every 4 weeks up to Week 48 and every 8 weeks after Week 48.
|
A breath analyzer will be used to measure changes in carbon 12 to carbon13 ratio as a result of metabolism of the Methacetin substrate before and after treatment.
Placebo versus emricasan in Conatus NASH treatment trial
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Number of Subjects Experiencing a High Risk Event Based on a 5.5%/Hour Cut-off
Time Frame: 1 hour for MBT for assessment of this diagnostic outcome assessed during screening
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Binary diagnosis of subjects that are at high risk to develop a deterioration event as determined by the Methacetin Breath Test (MBT) derived from an algorithm developed under other Exalenz clinical studies using a pre-designed cutoff of Percentage Dose Recovery (PDR) peak of < 5.5%/hour.
The data was collected and analyzed agnostic to the intervention.
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1 hour for MBT for assessment of this diagnostic outcome assessed during screening
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Number of Subjects Experiencing a High Risk Event Based on a 7.5 %/Hour Cut-off
Time Frame: 1 hour for MBT for assessment of this diagnostic outcome assessed during screening
|
Binary diagnosis of subjects that are at high risk to develop a deterioration event as determined by the Methacetin Breath Test (MBT) derived from an algorithm developed under other Exalenz clinical studies using a pre-designed cutoff of Percentage Dose Recovery (PDR) peak of < 7.5%/hour.The data was collected and analyzed agnostic to the intervention.
|
1 hour for MBT for assessment of this diagnostic outcome assessed during screening
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Collaborators and Investigators
Sponsor
Collaborators
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- CON-EX-0217
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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