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Terminated Phase 2 Interventional Results available

Standard of Care (SOC) With or Without CTS-1027 in Hepatitis C (HCV) Null-Responders

ClinicalTrials.gov ID: NCT01273064

Public ClinicalTrials.gov record NCT01273064. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 5, 2026, 6:11 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Placebo-Controlled, Multicenter, Double-Blind, Randomized Trial of Pegylated Interferon Plus Ribavirin With or Without CTS-1027 in HCV Null-Responders

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

Placebo controlled, double-blind, multicenter study utilizing standard of care (SOC) treatment (ribavirin plus pegylated interferon) in combination with CTS-1027 in genotype 1 chronic Hepatitis C (HCV) patients who were null-responders to previous SOC therapy(ies). Null-responders are defined as patients who failed to achieve a greater than 2 log drop in HCV-RNA (Hepatitis C Ribonucleic acid, also known as "viral load") levels after 12 weeks of treatment (know as an "early virologic response", or EVR) during previous SOC therapy. If, during previous SOC treatment, a patient had a less than 2 log decline in HCV-RNA at Week 12 but greater than 2 log decline in HCV-RNA at any time from Week 12 to Week 24, that patient is not a null-responder, and is excluded from study participation. If, during previous SOC treatment, a Week 12 HCV-RNA was not obtained, the post Week 12 response must have been \< 2 log decline (and still HCV-RNA positive) in order for the patient to be defined as a null-responder. Patients will be screened and have up to 4 weeks to qualify for study entry. During this screening period, clinical and laboratory tests will be performed. At Week 0/Day 1, patients will undergo centralized, stratified (based on ethnicity), randomization to one of four treatment arms: SOC + one of three doses of CTS-1027 or SOC + placebo. Study treatment will last 24, 48, or 60 weeks, based on each patient's response to study treatment. SOC + placebo patients who do not show a virologic response after 12 weeks of therapy will be rolled onto SOC + 15mg CTS-1027, while maintaining the study blind.

Study identification

NCT ID
NCT01273064
Recruitment status
Terminated
Study type
Interventional
Phase
Phase 2
Lead sponsor
Conatus Pharmaceuticals Inc.
Industry
Enrollment
114 participants

Conditions and interventions

Conditions

Interventions

Drug

Eligibility (public fields only)

Age range
18 Years and older
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Dec 31, 2010
Primary completion
Aug 31, 2011
Completion
Sep 30, 2011
Last update posted
Jun 10, 2012

2011

United States locations

U.S. sites
45
U.S. states
23
U.S. cities
36
Facility City State ZIP Site status
University of Alabama at Birmingham Birmingham Alabama 35294
Southern California Liver Centers Coronado California 92118
Scripps Clinic La Jolla California 92037
Loma Linda University MC Loma Linda California 92354
Huntington Medical Research Institute Pasadena California 91105
Medical Associates Research Group San Diego California 92123
UCSD San Diego California 92161
University of Colorado Denver Aurora Colorado 80045
Yale University School of Medicine New Haven Connecticut 06520
University of Miami Miami Florida 33136
Atlanta Medical Center, Inc. Atlanta Georgia 30309
Liver Center of Atlanta Atlanta Georgia 30309
Rush University Medical Center Chicago Illinois 60612
Loyola University Maywood Illinois 60153
Indiana University School of Medicine Indianapolis Indiana 46201
University of Kansas Medical Center Kansas City Kansas 66160
University of Louisville Louisville Kentucky 40202
Tulane University Health Sciences Center New Orleans Louisiana 70112
Ochsner Clinic Foundation New Orleans Louisiana 70121
Beth Israel Deaconess Medical Center Boston Massachusetts 02215
University of Massachusetts Memorial Medical Center Worcester Massachusetts 01655
Henry Ford Hospital Detroit Michigan 48202-2689
Mayo Clinic Rochester Minnesota 55905
St. Louis University St Louis Missouri 63104
Concorde Medical Group New York New York 10016
New York University New York New York 10016
Weill Medical College of Cornell New York New York 10021
Columbia Presbyterian Medical Center New York New York 10032
Einstein College of Medicine (Jacobi Medical Center) The Bronx New York 10461
New York Medical College Valhalla New York 10595
Duke University Medical Center Durham North Carolina 27710
Consultants for Clinical Research Cincinnati Ohio 45219
Cleveland Clinic Cleveland Ohio 44195
Albert Einstein Medical Center Philadelphia Pennsylvania 19141
Baylor All Saints Medical Center Fort Worth Texas 76104
University of Texas Medical Branch at Galveston Galveston Texas 77555
Research Specialists of Texas Houston Texas 77030
St. Luke's Episcopal Hospital Houston Texas 77030
University of Texas HSC at Houston Houston Texas 77030
VAMC Houston Houston Texas 77030
University of Utah Salt Lake City Utah 84132
Metropolitan Research Group Washington DC Fairfax Virginia 22031
Liver Institute of Virginia Newport News Virginia 23602
Virginia Commonwealth University (VCU) Richmond Virginia 23298
Benaroya Research Institute at Virginia Mason Seattle Washington 98101

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT01273064, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Jun 10, 2012 · Synced Sep 5, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT01273064 live on ClinicalTrials.gov.

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