CTS-1027 in Interferon-Naive Hepatitis C Patients
Primary Purpose
Hepatitis C
Status
Completed
Phase
Phase 2
Locations
International
Study Type
Interventional
Intervention
ribavirin
CTS-1027
Placebo for ribavirin
Sponsored by

About this trial
This is an interventional treatment trial for Hepatitis C focused on measuring HCV, interferon-naive
Eligibility Criteria
Inclusion Criteria:
- Male or female patients of minimum adult legal age (according to local laws for signing the informed consent document), able to provide written informed consent, and understand and comply with the requirements of the trial
- A history of chronic (> 6 months duration) genotype 1 Hepatitis C (HCV) infection
Unsuitable for interferon-based HCV treatment, defined as at least one of the following three criteria:
- Contra-indicated for interferon treatment due to current or prior psychiatric disorders
- Patient's decision to not pursue interferon-based therapy
- In the opinion of the Principal Investigator, the patient is not a suitable candidate for interferon-based therapy
- a-fetoprotein (AFP) <= 50 ng/mL
- Hemoglobin ≥ 12 g/dL, platelet count ≥ 100 x 109/L, and white blood cell count ≥ 1.5 x 109/L
- Willingness to utilize two reliable forms of contraception (for both males and females of childbearing potential) from screening to at least six months after the completion of the trial.
Exclusion Criteria:
Decompensated or severe liver disease defined by one or more of the following criteria:
- Prothrombin time 3 seconds > control
- Direct bilirubin ≥ 1.5 x upper limit of normal range (ULN)
- Serum albumin below normal limits
- AST or ALT > 7 x ULN at screening
Evidence of portal hypertension including:
- Varices on esophagogastroduodenoscopy (EGD) with or without a history of gastrointestinal bleeding; or
- Ascites
Cirrhosis defined by one or both of the following criteria:
- Liver biopsy showing cirrhosis
- Other clinical signs and symptoms suggestive of cirrhosis
- Prior therapy for HCV with an interferon-based regimen
- Hepatocellular carcinoma (HCC) or suspicion of HCC clinically or on ultrasound (or other imaging techniques)
- Known history or presence of human immunodeficiency virus (HIV) infection
- Co-infection with hepatitis B virus (HBV)
- If female: pregnant, lactating, or positive serum pregnancy test
- Renal impairment (creatinine > 1.5 x ULN), creatinine clearance < 50 mL/min, or hepatorenal syndrome
- Hospitalization for liver disease within 60 days of screening
- Use of concomitant or prior drug therapy for HCV three months prior to screening
- Use of drugs of abuse in the prior three months (allowed if medically prescribed or indicated)
- History of alcohol abuse (> 50 g per day) within the past year
- History or presence of clinically concerning cardiac arrhythmias or prolongation of pre-dose QT or QTc interval of > 450 milliseconds
- Other concomitant disease or condition likely to significantly decrease life expectancy (e.g., moderate to severe congestive heart failure) or any malignancy other than curatively treated skin cancer (basal cell or squamous cell carcinomas), unless adequately treated or in complete remission for ten or more years
- Any patient who has received any investigational drug or device within 30 days of dosing, or who is scheduled to receive another investigational drug or device during the course of this trial.
Sites / Locations
- University of Alabama at Birmingham
- Medical Associates Research Group
- Kaiser Permanante
- VA Medical Center, San Diego
- University of Colorado Health Science Center
- Washington Hospital Center
- University of Florida
- Tulane University Health Sciences Center
- University of MA Mem Med Ctr
- Henry Ford Medical Center-Columbus
- MN Clinical Research Center
- Mayo Clinic Rochester
- St. Louis University
- Mount Sinai School of Medicine
- University of NC at Chapel Hill
- Duke University Health System
- Consultants of Clinical Research, Ohio GI and Liver Institute
- Cleveland Clinic
- VA Medical Center, Houston
- VCU-Medical College of Virginia
- Fundacion de Investigacion de Diego
Arms of the Study
Arm 1
Arm 2
Arm Type
Experimental
Experimental
Arm Label
CTS-1027 + ribavirin
CTS-1027 + placebo
Arm Description
Study drug plus ribavirin
Study drug plus placebo for ribavirin
Outcomes
Primary Outcome Measures
Mean Change in HCV-RNA (Hepatitis C Virus Ribonucleic Acid) Levels From Baseline Through 24 Weeks of Treatment
Measure the mean absolute changes in HCV-RNA (Hepatitis C virus ribonucleic acid, also known as "viral load") levels in the blood from before treatment (baseline) through 24 weeks of treatment.
Mean Absolute Change in HCV-RNA (log) = log10(HCV-RNA Week 24) - log10(HCV-RNA Baseline)
Secondary Outcome Measures
Mean Change in Aminotransferases From Baseline to 24 Weeks of Treatment
Mean absolute changes in ALT (alanine aminotransferase)in the blood from before treatment (baseline)through 24 weeks of treatment are presented.
Mean absolute change in ALT (IU/ml)= ALT(Week 24) - ALT(baseline)
Full Information
NCT ID
NCT00925990
First Posted
June 19, 2009
Last Updated
February 27, 2012
Sponsor
Conatus Pharmaceuticals Inc.
1. Study Identification
Unique Protocol Identification Number
NCT00925990
Brief Title
CTS-1027 in Interferon-Naive Hepatitis C Patients
Official Title
A Trial of CTS-1027 in Interferon-Naive Hepatitis C Patients
Study Type
Interventional
2. Study Status
Record Verification Date
February 2012
Overall Recruitment Status
Completed
Study Start Date
June 2009 (undefined)
Primary Completion Date
May 2010 (Actual)
Study Completion Date
July 2010 (Actual)
3. Sponsor/Collaborators
Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Conatus Pharmaceuticals Inc.
4. Oversight
Data Monitoring Committee
Yes
5. Study Description
Brief Summary
The study is intended to determine whether CTS-1027 either alone or in combination with ribavirin is safe and effective in Hepatitis C patients who have not previously been treated with interferon.
Detailed Description
There are approximately 1 million Hepatitis C (HCV) patients in the US who have failed to respond to, or cannot tolerate, interferon or interferon plus ribavirin therapy. Significant adverse effects of interferon therapy include bone marrow depression (with reduced white blood cell and platelet counts) and major psychiatric disorders (especially depression). Ribavirin is associated with hemolytic anemia in a minority of patients who are treated with it. Patients with chronic HCV infection have a very low incidence of spontaneous viral clearance, have progressive disease, and have a continuing medical need for more efficacious and safer therapy. There is a significant unmet medical need for therapy in HCV patients who cannot (or will not) tolerate interferon-based treatment.
This trial will evaluate the effects of CTS-1027 with or without ribavirin in patients who are previously untreated with interferon including patients with major psychiatric disorders, uncontrolled autoimmune disease, and patients who simply decline treatment.
6. Conditions and Keywords
Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Hepatitis C
Keywords
HCV, interferon-naive
7. Study Design
Primary Purpose
Treatment
Study Phase
Phase 2
Interventional Study Model
Parallel Assignment
Masking
ParticipantCare ProviderInvestigatorOutcomes Assessor
Allocation
Randomized
Enrollment
70 (Actual)
8. Arms, Groups, and Interventions
Arm Title
CTS-1027 + ribavirin
Arm Type
Experimental
Arm Description
Study drug plus ribavirin
Arm Title
CTS-1027 + placebo
Arm Type
Experimental
Arm Description
Study drug plus placebo for ribavirin
Intervention Type
Drug
Intervention Name(s)
ribavirin
Other Intervention Name(s)
Copegus
Intervention Description
200 mg capsules, either 1000 or 1200 mg taken twice daily for up to 24 weeks
Intervention Type
Drug
Intervention Name(s)
CTS-1027
Intervention Description
5 and 10 mg tablets, 15 mg taken twice daily, for up to 24 weeks
Intervention Type
Drug
Intervention Name(s)
Placebo for ribavirin
Intervention Description
Capsules identical to ribavirin in appearance containing inactive ingredients
Primary Outcome Measure Information:
Title
Mean Change in HCV-RNA (Hepatitis C Virus Ribonucleic Acid) Levels From Baseline Through 24 Weeks of Treatment
Description
Measure the mean absolute changes in HCV-RNA (Hepatitis C virus ribonucleic acid, also known as "viral load") levels in the blood from before treatment (baseline) through 24 weeks of treatment.
Mean Absolute Change in HCV-RNA (log) = log10(HCV-RNA Week 24) - log10(HCV-RNA Baseline)
Time Frame
Baseline and 24 weeks
Secondary Outcome Measure Information:
Title
Mean Change in Aminotransferases From Baseline to 24 Weeks of Treatment
Description
Mean absolute changes in ALT (alanine aminotransferase)in the blood from before treatment (baseline)through 24 weeks of treatment are presented.
Mean absolute change in ALT (IU/ml)= ALT(Week 24) - ALT(baseline)
Time Frame
Baseline and 24 weeks
10. Eligibility
Sex
All
Minimum Age & Unit of Time
18 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria:
Male or female patients of minimum adult legal age (according to local laws for signing the informed consent document), able to provide written informed consent, and understand and comply with the requirements of the trial
A history of chronic (> 6 months duration) genotype 1 Hepatitis C (HCV) infection
Unsuitable for interferon-based HCV treatment, defined as at least one of the following three criteria:
Contra-indicated for interferon treatment due to current or prior psychiatric disorders
Patient's decision to not pursue interferon-based therapy
In the opinion of the Principal Investigator, the patient is not a suitable candidate for interferon-based therapy
a-fetoprotein (AFP) <= 50 ng/mL
Hemoglobin ≥ 12 g/dL, platelet count ≥ 100 x 109/L, and white blood cell count ≥ 1.5 x 109/L
Willingness to utilize two reliable forms of contraception (for both males and females of childbearing potential) from screening to at least six months after the completion of the trial.
Exclusion Criteria:
Decompensated or severe liver disease defined by one or more of the following criteria:
Prothrombin time 3 seconds > control
Direct bilirubin ≥ 1.5 x upper limit of normal range (ULN)
Serum albumin below normal limits
AST or ALT > 7 x ULN at screening
Evidence of portal hypertension including:
Varices on esophagogastroduodenoscopy (EGD) with or without a history of gastrointestinal bleeding; or
Ascites
Cirrhosis defined by one or both of the following criteria:
Liver biopsy showing cirrhosis
Other clinical signs and symptoms suggestive of cirrhosis
Prior therapy for HCV with an interferon-based regimen
Hepatocellular carcinoma (HCC) or suspicion of HCC clinically or on ultrasound (or other imaging techniques)
Known history or presence of human immunodeficiency virus (HIV) infection
Co-infection with hepatitis B virus (HBV)
If female: pregnant, lactating, or positive serum pregnancy test
Renal impairment (creatinine > 1.5 x ULN), creatinine clearance < 50 mL/min, or hepatorenal syndrome
Hospitalization for liver disease within 60 days of screening
Use of concomitant or prior drug therapy for HCV three months prior to screening
Use of drugs of abuse in the prior three months (allowed if medically prescribed or indicated)
History of alcohol abuse (> 50 g per day) within the past year
History or presence of clinically concerning cardiac arrhythmias or prolongation of pre-dose QT or QTc interval of > 450 milliseconds
Other concomitant disease or condition likely to significantly decrease life expectancy (e.g., moderate to severe congestive heart failure) or any malignancy other than curatively treated skin cancer (basal cell or squamous cell carcinomas), unless adequately treated or in complete remission for ten or more years
Any patient who has received any investigational drug or device within 30 days of dosing, or who is scheduled to receive another investigational drug or device during the course of this trial.
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Erin Castelloe, MD
Organizational Affiliation
Conatus Pharmaceuticals
Official's Role
Study Chair
Facility Information:
Facility Name
University of Alabama at Birmingham
City
Birmingham
State/Province
Alabama
ZIP/Postal Code
35294
Country
United States
Facility Name
Medical Associates Research Group
City
San Diego
State/Province
California
ZIP/Postal Code
92123
Country
United States
Facility Name
Kaiser Permanante
City
San Diego
State/Province
California
ZIP/Postal Code
92154
Country
United States
Facility Name
VA Medical Center, San Diego
City
San Diego
State/Province
California
ZIP/Postal Code
92161
Country
United States
Facility Name
University of Colorado Health Science Center
City
Denver
State/Province
Colorado
ZIP/Postal Code
80262
Country
United States
Facility Name
Washington Hospital Center
City
Washington
State/Province
District of Columbia
ZIP/Postal Code
20010
Country
United States
Facility Name
University of Florida
City
Gainsville
State/Province
Florida
ZIP/Postal Code
32610
Country
United States
Facility Name
Tulane University Health Sciences Center
City
New Orleans
State/Province
Louisiana
ZIP/Postal Code
70112
Country
United States
Facility Name
University of MA Mem Med Ctr
City
Worchester
State/Province
Massachusetts
ZIP/Postal Code
01655
Country
United States
Facility Name
Henry Ford Medical Center-Columbus
City
Novi
State/Province
Michigan
ZIP/Postal Code
48377
Country
United States
Facility Name
MN Clinical Research Center
City
Plymouth
State/Province
Minnesota
ZIP/Postal Code
55446
Country
United States
Facility Name
Mayo Clinic Rochester
City
Rochester
State/Province
Minnesota
ZIP/Postal Code
55905
Country
United States
Facility Name
St. Louis University
City
St. Louis
State/Province
Missouri
ZIP/Postal Code
63104
Country
United States
Facility Name
Mount Sinai School of Medicine
City
New York City
State/Province
New York
ZIP/Postal Code
10029
Country
United States
Facility Name
University of NC at Chapel Hill
City
Chapel Hill
State/Province
North Carolina
ZIP/Postal Code
27599
Country
United States
Facility Name
Duke University Health System
City
Durham
State/Province
North Carolina
ZIP/Postal Code
27710
Country
United States
Facility Name
Consultants of Clinical Research, Ohio GI and Liver Institute
City
Cincinnati
State/Province
Ohio
ZIP/Postal Code
45219
Country
United States
Facility Name
Cleveland Clinic
City
Cleveland
State/Province
Ohio
ZIP/Postal Code
44195
Country
United States
Facility Name
VA Medical Center, Houston
City
Houston
State/Province
Texas
ZIP/Postal Code
77030
Country
United States
Facility Name
VCU-Medical College of Virginia
City
Richmond
State/Province
Virginia
ZIP/Postal Code
23298
Country
United States
Facility Name
Fundacion de Investigacion de Diego
City
Santurce
ZIP/Postal Code
00909
Country
Puerto Rico
12. IPD Sharing Statement
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CTS-1027 in Interferon-Naive Hepatitis C Patients
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