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Study of CTS-1027 in Hepatitis C Patients

Primary Purpose

Chronic Hepatitis C Virus Infection

Status
Completed
Phase
Phase 2
Locations
United States
Study Type
Interventional
Intervention
CTS-1027
Placebo
Sponsored by
Conatus Pharmaceuticals Inc.
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Chronic Hepatitis C Virus Infection focused on measuring HCV, HCV treatment failure, Elevated aminotransferases

Eligibility Criteria

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

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 HCV infection
  • Unsuccessful HCV treatment defined as one or more of the following criteria:

    1. Failure to achieve a virologic response during previous therapy, or
    2. Failure to tolerate therapy, or
    3. Failure to maintain a sustained virologic response, or
    4. In the opinion of the Principal Investigator, the patient is not a suitable candidate for interferon based therapy
  • Liver impairment, as defined by either aspartate aminotransferase (AST) and/or alanine aminotransferase (ALT) levels 1.5 - 7 x ULN on at least two occasions, seven or more days apart, during the baseline period
  • Alpha-fetoprotein (AFP) <= 50 ng/mL
  • Hemoglobin >= 10 g/dL, platelet count >= 75 x 109/L, and white blood cell count >= 1.5 x 109/L
  • Willingness to utilize adequate contraception (if female, evidenced by being postmenopausal for at least 6 months or using contraceptive pill; for both females and males, being surgically sterile, or using two forms of barrier contraception) from screening to at least one month after the completion of the trial.

Exclusion Criteria:

  • Decompensated or severe liver disease defined by one or more of the following criteria:

    1. Prior liver biopsy showing cirrhosis
    2. Prior liver biopsy showing bridging fibrosis (Metavir >2 or Ishak >3) more than 2 years ago in the absence of newer liver biopsy results
    3. Prothrombin time: 3 seconds > control
    4. Total bilirubin >= 1.5 x Upper limit of the normal range (ULN), or > 3 x ULN for unconjugated bilirubin
    5. Serum albumin below normal limits
    6. AST or ALT > 7 x ULN during baseline period
    7. Evidence of portal hypertension including:
  • Splenomegaly or evidence of portal hypertension (i.e., enlarged portal vein and varices) on ultrasound,
  • Varices in esophagogastroduodenoscopy (EGD); or
  • Ascites
  • 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 or urine pregnancy test
  • Last baseline AST and ALT level prior to Day 1 of < 1.5 x ULN
  • Renal impairment (creatinine > 1.5 x ULN) or hepatorenal syndrome
  • Pancreatitis
  • Hospitalization for liver disease within 60 days of screening
  • Use of concomitant or prior drug therapy for HCV at screening, including the use of:

    1. drugs with presumed anti-HCV activity in the prior three months
    2. corticosteroids in the past 30 days
    3. potentially hepatotoxic drugs in the past 30 days (including alpha methyl-dopa, sodium valproic acid, isoniazide, or nitrofurantoin)
  • Use of illicit or drugs of abuse in the prior three months (allowed if medically prescribed or indicated)
  • History of alcohol abuse 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
  • Scripps Clinic
  • Kaiser Permanente
  • California Pacific Medical Center
  • University of Colorado Denver
  • University of Miami
  • Digestive Healthcare of Georgia
  • Tulane University Health Sciences Center
  • Beth Israel Deaconess Medical Center
  • Henry Ford Health System
  • Mayo Clinic
  • Bronx VA Medical Center
  • Mt. Sinai School of Medicine
  • Duke University Medical Center
  • Consultants of Clinical Research
  • Cleveland Clinic
  • Advanced Liver Therapies - Baylor College of Medicine
  • VAMC - Baylor College of Medicine
  • McGuire Hospital DVAMC

Arms of the Study

Arm 1

Arm 2

Arm 3

Arm 4

Arm 5

Arm Type

Experimental

Experimental

Experimental

Experimental

Placebo Comparator

Arm Label

2.5 milligram (mg) CTS-1027

5 mg CTS-1027

10 mg CTS-1027

30 mg CTS-1027

Placebo

Arm Description

2.5 mg CTS-1027

5 mg CTS-1027

10 mg CTS-1027

30 mg CTS-1027

Placebo

Outcomes

Primary Outcome Measures

Number of adverse events at each dose level
Alanine aminotransferase (ALT) and Aspartate aminotransferase (AST) levels at each dose

Secondary Outcome Measures

Peak and trough levels of CTS-1027 in plasma

Full Information

First Posted
December 6, 2007
Last Updated
September 14, 2010
Sponsor
Conatus Pharmaceuticals Inc.
Collaborators
FGK Clinical Research GmbH
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1. Study Identification

Unique Protocol Identification Number
NCT00570336
Brief Title
Study of CTS-1027 in Hepatitis C Patients
Official Title
A Dose Response Study of CTS-1027 in Hepatitis C Patients
Study Type
Interventional

2. Study Status

Record Verification Date
September 2010
Overall Recruitment Status
Completed
Study Start Date
December 2007 (undefined)
Primary Completion Date
July 2009 (Actual)
Study Completion Date
July 2009 (Actual)

3. Sponsor/Collaborators

Name of the Sponsor
Conatus Pharmaceuticals Inc.
Collaborators
FGK Clinical Research GmbH

4. Oversight

Data Monitoring Committee
Yes

5. Study Description

Brief Summary
The purpose of this study is to determine if CTS-1027 can lower elevated liver enzymes in patients with chronic HCV infection.
Detailed Description
Randomized, placebo-controlled, double-blind, parallel group, multicenter, dose response trial utilizing four doses of CTS-1027, administered orally once daily, in outpatients with chronic hepatitis C virus (HCV) infection.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Chronic Hepatitis C Virus Infection
Keywords
HCV, HCV treatment failure, Elevated aminotransferases

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 2
Interventional Study Model
Parallel Assignment
Masking
ParticipantCare ProviderInvestigatorOutcomes Assessor
Allocation
Randomized
Enrollment
87 (Actual)

8. Arms, Groups, and Interventions

Arm Title
2.5 milligram (mg) CTS-1027
Arm Type
Experimental
Arm Description
2.5 mg CTS-1027
Arm Title
5 mg CTS-1027
Arm Type
Experimental
Arm Description
5 mg CTS-1027
Arm Title
10 mg CTS-1027
Arm Type
Experimental
Arm Description
10 mg CTS-1027
Arm Title
30 mg CTS-1027
Arm Type
Experimental
Arm Description
30 mg CTS-1027
Arm Title
Placebo
Arm Type
Placebo Comparator
Arm Description
Placebo
Intervention Type
Drug
Intervention Name(s)
CTS-1027
Intervention Description
Eligible patients were randomized to one of four doses of CTS-1027 (2.5 mg, 5 mg, 10 mg, or 30 mg) or placebo qd (quaque die, once daily).
Intervention Type
Other
Intervention Name(s)
Placebo
Intervention Description
Eligible patients were randomized to one of four doses of CTS-1027 (2.5 mg, 5 mg, 10 mg, or 30 mg) or placebo qd.
Primary Outcome Measure Information:
Title
Number of adverse events at each dose level
Time Frame
4 to 24 weeks
Title
Alanine aminotransferase (ALT) and Aspartate aminotransferase (AST) levels at each dose
Time Frame
4-24 Weeks
Secondary Outcome Measure Information:
Title
Peak and trough levels of CTS-1027 in plasma
Time Frame
4 to 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 HCV infection Unsuccessful HCV treatment defined as one or more of the following criteria: Failure to achieve a virologic response during previous therapy, or Failure to tolerate therapy, or Failure to maintain a sustained virologic response, or In the opinion of the Principal Investigator, the patient is not a suitable candidate for interferon based therapy Liver impairment, as defined by either aspartate aminotransferase (AST) and/or alanine aminotransferase (ALT) levels 1.5 - 7 x ULN on at least two occasions, seven or more days apart, during the baseline period Alpha-fetoprotein (AFP) <= 50 ng/mL Hemoglobin >= 10 g/dL, platelet count >= 75 x 109/L, and white blood cell count >= 1.5 x 109/L Willingness to utilize adequate contraception (if female, evidenced by being postmenopausal for at least 6 months or using contraceptive pill; for both females and males, being surgically sterile, or using two forms of barrier contraception) from screening to at least one month after the completion of the trial. Exclusion Criteria: Decompensated or severe liver disease defined by one or more of the following criteria: Prior liver biopsy showing cirrhosis Prior liver biopsy showing bridging fibrosis (Metavir >2 or Ishak >3) more than 2 years ago in the absence of newer liver biopsy results Prothrombin time: 3 seconds > control Total bilirubin >= 1.5 x Upper limit of the normal range (ULN), or > 3 x ULN for unconjugated bilirubin Serum albumin below normal limits AST or ALT > 7 x ULN during baseline period Evidence of portal hypertension including: Splenomegaly or evidence of portal hypertension (i.e., enlarged portal vein and varices) on ultrasound, Varices in esophagogastroduodenoscopy (EGD); or Ascites 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 or urine pregnancy test Last baseline AST and ALT level prior to Day 1 of < 1.5 x ULN Renal impairment (creatinine > 1.5 x ULN) or hepatorenal syndrome Pancreatitis Hospitalization for liver disease within 60 days of screening Use of concomitant or prior drug therapy for HCV at screening, including the use of: drugs with presumed anti-HCV activity in the prior three months corticosteroids in the past 30 days potentially hepatotoxic drugs in the past 30 days (including alpha methyl-dopa, sodium valproic acid, isoniazide, or nitrofurantoin) Use of illicit or drugs of abuse in the prior three months (allowed if medically prescribed or indicated) History of alcohol abuse 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
William Frank, MD
Organizational Affiliation
Conatus Pharmaceuticals Inc.
Official's Role
Study Director
Facility Information:
Facility Name
University of Alabama at Birmingham
City
Birmingham
State/Province
Alabama
ZIP/Postal Code
35233
Country
United States
Facility Name
Scripps Clinic
City
La Jolla
State/Province
California
ZIP/Postal Code
92037
Country
United States
Facility Name
Kaiser Permanente
City
San Diego
State/Province
California
ZIP/Postal Code
92154
Country
United States
Facility Name
California Pacific Medical Center
City
San Francisco
State/Province
California
ZIP/Postal Code
94115
Country
United States
Facility Name
University of Colorado Denver
City
Aurora
State/Province
Colorado
ZIP/Postal Code
80045
Country
United States
Facility Name
University of Miami
City
Miami
State/Province
Florida
ZIP/Postal Code
33136
Country
United States
Facility Name
Digestive Healthcare of Georgia
City
Atlanta
State/Province
Georgia
ZIP/Postal Code
30309
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
Beth Israel Deaconess Medical Center
City
Boston
State/Province
Massachusetts
ZIP/Postal Code
02215
Country
United States
Facility Name
Henry Ford Health System
City
West Bloomfield
State/Province
Michigan
ZIP/Postal Code
48322
Country
United States
Facility Name
Mayo Clinic
City
Rochester
State/Province
Minnesota
ZIP/Postal Code
55905
Country
United States
Facility Name
Bronx VA Medical Center
City
Bronx
State/Province
New York
ZIP/Postal Code
10468
Country
United States
Facility Name
Mt. Sinai School of Medicine
City
New York
State/Province
New York
ZIP/Postal Code
10019
Country
United States
Facility Name
Duke University Medical Center
City
Durham
State/Province
North Carolina
ZIP/Postal Code
27710
Country
United States
Facility Name
Consultants of Clinical Research
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
Advanced Liver Therapies - Baylor College of Medicine
City
Houston
State/Province
Texas
ZIP/Postal Code
77030
Country
United States
Facility Name
VAMC - Baylor College of Medicine
City
Houston
State/Province
Texas
ZIP/Postal Code
77030
Country
United States
Facility Name
McGuire Hospital DVAMC
City
Richmond
State/Province
Virginia
ZIP/Postal Code
23249
Country
United States

12. IPD Sharing Statement

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Study of CTS-1027 in Hepatitis C Patients

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