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Pharmacokinetic and Pharmacodynamic Study of IDN-6556 in ACLF

Phase 2
Terminated
Conditions
Acute on Chronic Hepatic Failure
Liver Cirrhosis
Acute Alcoholic Hepatitis
Acute Liver Failure
Interventions
Other: Placebo
Registration Number
NCT01937130
Lead Sponsor
Conatus Pharmaceuticals Inc.
Brief Summary

The study will evaluate the pharmacokinetics, pharmacodynamics, safety and preliminary efficacy of IDN-6556 in subjects with cirrhosis of the liver who are hospitalized for more than 24 hours due to acute deterioration of liver function.

Detailed Description

Not available

Recruitment & Eligibility

Status
TERMINATED
Sex
All
Target Recruitment
23
Inclusion Criteria
  • Male or female subjects 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 study

  • Subjects with a clinical, radiological and/or histological diagnosis of cirrhosis

  • Subjects having not required hospital admission within 4 weeks of screening for a complication of cirrhosis

  • Subjects with an acute deterioration of liver function

  • Subjects who meet one of the following criteria:

    1. Subjects with renal failure (defined as creatinine ≥ 2.0 to ≤ 3.4 mg/dL)
    2. Subjects with other single organ failure with i. Renal impairment (defined as an increase in creatinine of > 0.3 mg/dL from either an established prior Baseline level or if applicable, upon admission to hospital if prior level is unavailable; for inclusion, the creatinine level must be raised above normal levels), and/or ii. Hepatic encephalopathy grade I or II
    3. Subjects with two organ failures
  • If a subject received steroids for alcohol-induced acute liver failure, he/she must be unresponsive to steroid therapy. Responsiveness is based on investigator discretion.

  • Willingness to utilize two reliable forms of contraception (for both males and females of childbearing potential) from screening to one month after the last dose of study drug

Exclusion Criteria
  • Known infection with HIV
  • Subjects with cirrhosis who develop decompensation at any time in the postoperative period following partial hepatectomy
  • Subjects with evidence of uncontrolled infection defined as persistent bacterial culture positivity despite adequate antibiotic therapy
  • Subjects with clinical evidence of disseminated intravascular coagulation
  • Subjects with chronic and/or pre-existing kidney disease defined as eGFR (estimated glomerular filtration rate) of less than 30 mL/min for 3 months or longer
  • Subjects who are hypotensive (defined as mean arterial pressure <70 mmHg) or require the use of inotropic support
  • Subjects with evidence of significant and/or uncontrolled bleeding
  • Subjects requiring mechanical ventilation
  • Subjects with active or history of malignancies other than hepatocellular carcinoma (HCC) within Milan criteria or curatively treated skin cancer (basal cell or squamous cell carcinomas), unless adequately treated or in complete remission for five or more years
  • Subjects previously exposed to IDN-6556
  • History or presence of clinically concerning cardiac arrhythmias, or prolongation of Screening (pre-treatment) QT or QTc interval of > 480 milliseconds (msec)

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
PlaceboPlaceboDosed twice daily
IDN-6556 5 mgIDN-6556Dosed twice daily
IDN-6556 25 mgIDN-6556Dosed twice daily
IDN-6556 50 mgIDN-6556Dosed twice daily
Primary Outcome Measures
NameTimeMethod
Area Under the Curve (AUC)28 days

Primary endpoints for AUC_0-8, AUC_0 last, AUC_0-inf on Day 1 and Day 4 for the active treatment arms were analyzed.

Tmax & t1/2 Parameters28 Days

Primary endpoints for tmax \& t1/2 on Day 1 and Day 4 for the active treatment arms were analyzed.

Cmax28 Days

Primary endpoints forCmax on Day 1 and Day 4 for the active treatment arms were analyzed.

Secondary Outcome Measures
NameTimeMethod
Levels of CK18/M30Baseline, Day 2, Day 4, Day 7, Day 14, Day 21, and Day 28

Caspase-cleaved cytokeratin serum levels (CK18/M30)

Levels of CK18/M65Baseline, Day 2, Day 4, Day 7, Day 14, Day 21, and Day 28

Caspase full-length cytokeratin serum levels CK18/M65

Levels of Caspase 3/7 RLUBaseline, Day 2, Day 4, Day 7, Day 14, Day 21, and Day 28

Concentration of Caspase 3/7 Relative Light Units

Trial Locations

Locations (26)

Derriford Hospital

🇬🇧

Plymouth, United Kingdom

Georgetown University Hospital

🇺🇸

Washington, District of Columbia, United States

University College London, Royal Free Hospital

🇬🇧

London, United Kingdom

Royal London Hospital

🇬🇧

London, United Kingdom

Freeman Hospital

🇬🇧

Newcastle upon tyne, United Kingdom

VA San Diego Healthcare System

🇺🇸

San Diego, California, United States

University of Utah

🇺🇸

Salt Lake City, Utah, United States

Glasgow Royal Infirmary

🇬🇧

Glasgow, United Kingdom

Leicester Royal Infirmary

🇬🇧

Leicester, United Kingdom

Central Manchester University Hospitals NHS Trust

🇬🇧

Manchester, United Kingdom

Ninewells Hospital

🇬🇧

Dundee, United Kingdom

University of Alabama at Birmingham

🇺🇸

Birmingham, Alabama, United States

Singleton Hospital

🇬🇧

Swansea, Wales, United Kingdom

University of Mississippi Medical Center

🇺🇸

Jackson, Mississippi, United States

Blackpool Victoria Hospital

🇬🇧

Blackpool, United Kingdom

Bristol Royal Infirmary

🇬🇧

Bristol, United Kingdom

Sutter Pacific Medical Foundation

🇺🇸

San Francisco, California, United States

Univerisity of Louisville Liver Research Center

🇺🇸

Louisville, Kentucky, United States

Basildon and Thurrock University Hospital

🇬🇧

Basildon, United Kingdom

Queen Alexandra Hospital

🇬🇧

Portsmouth, United Kingdom

Scripps Clinic

🇺🇸

La Jolla, California, United States

Nottingham University Hospitals NHS Trust

🇬🇧

Nottingham, United Kingdom

University of Washington Harborview Medical Center

🇺🇸

Seattle, Washington, United States

Montefiore Medical Center

🇺🇸

Bronx, New York, United States

University of Kansas Medical Center

🇺🇸

Kansas City, Kansas, United States

Royal Liverpool University Hospital

🇬🇧

Liverpool, United Kingdom

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