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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 Oct 21, 2026, 6:24 PM 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
Jan 2011 (Type not available)
Primary completion
Sep 2011 (Actual)
Completion
Oct 2011 (Actual)
Last update posted
Jun 11, 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 11, 2012 · Synced Oct 21, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT01273064 live on ClinicalTrials.gov.

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