Study Stopped
Enanta Pharmaceuticals, Inc. made the strategic decision to discontinue the ARGON-2 study to prioritize combination treatment approaches. This decision was not based on safety concerns.
A Randomized, Double-blind Study to Assess the Safety and Efficacy of EDP-305 in Subjects With Liver-biopsy Proven NASH
A Phase 2b Randomized, Double-Blind, Placebo-controlled, Multicenter Study Evaluating Safety and Efficacy of EDP-305 in Subjects With Liver Biopsy Proven Non-alcoholic Steatohepatitis (NASH) (ARGON-2)
2 other identifiers
interventional
98
6 countries
81
Brief Summary
A randomized, double-blind study to assess the safety and efficacy of EDP-305 in subjects with liver-biopsy proven Non-Alcoholic Steatohepatitis (NASH)
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_2
Started Jan 2020
81 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
January 27, 2020
CompletedFirst Submitted
Initial submission to the registry
May 4, 2020
CompletedFirst Posted
Study publicly available on registry
May 7, 2020
CompletedPrimary Completion
Last participant's last visit for primary outcome
October 4, 2021
CompletedStudy Completion
Last participant's last visit for all outcomes
November 30, 2021
CompletedResults Posted
Study results publicly available
May 19, 2023
CompletedMay 19, 2023
April 1, 2023
1.7 years
May 4, 2020
January 6, 2023
April 25, 2023
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Proportion of Participants Who Achieve ≥1 Stage Improvement in Fibrosis Without Worsening of Steatohepatitis and/or Resolution of Steatohepatitis and no Worsening of Liver Fibrosis as Determined by Liver Biopsy
Proportion of participants who achieve ≥1 stage improvement in fibrosis without worsening of steatohepatitis and/or resolution of steatohepatitis and no worsening of liver fibrosis as determined by liver biopsy.
Week 72
Secondary Outcomes (20)
Change in 5D-itch Scale From Baseline
Baseline, Week 12
Proportion of Participants With Improvement of Fibrosis by at Least 1 Stage and/or Resolution of NASH Without Worsening of Either as Determined by Liver Biopsy
Week 72
Proportion of Participants With no Worsening of Fibrosis Combined With no Worsening of NASH as Determined by Liver Biopsy
Week 72
Proportion of Participants With Resolution of Fibrosis as Determined by Liver Biopsy
Week 72
Proportion of Participants With Improvement in Each Histologic Feature of NASH by at Least 1 Point as Determined by Liver Biopsy
Week 72
- +15 more secondary outcomes
Study Arms (3)
EDP-305 1.5 mg
EXPERIMENTALOnce a day orally for 72 weeks
EDP-305 2 mg
EXPERIMENTALOnce a day orally for 72 weeks
Placebo
PLACEBO COMPARATOROnce a day orally for 72 weeks
Interventions
Eligibility Criteria
You may qualify if:
- Informed consent documentation signed and dated by the participant.
- Male and female participants, of all ethnic origins, between the ages of 18 and 75 years, inclusive.
- Participants of all ethnic origins had to have a Body Mass Index (BMI) \> 25 kg/m2 and ≤ 45 except Asian participants who qualified for the study with BMI \> 23 kg/m2.
- Histological evidence of definite NASH based on NASH Clinical Research Network (CRN) criteria obtained from assessment of a liver biopsy by the central histopathologist. The biopsy may be obtained either 1) during the Screening window or 2) within 26 weeks prior to the Screening visit.
- NAFLD Activity Score (NAS) of 4 or greater with a score of at least 1 in each component of the NAS (steatosis scored 0-3, lobular inflammation scored 0-3, ballooning scored 0-2).
- Fibrosis stage 2 or 3 using the NASH CRN Histologic Scoring System.
- Participants had to have Screening laboratory values for Hepatitis B surface antigen (HBsAg), anti-HCV antibodies and HCV RNA, and Human Immunodeficiency Virus (HIV) 1 and 2 antibodies (Ab) as seronegative. \[Note: participants previously infected by chronic hepatitis C and treated with direct acting antivirals (DAAs) with sustained virologic response (SVR) for at least 3 years were allowed.\]
- A woman of childbearing potential who was sexually active with a male had to agree to use two effective methods of contraception from the date of Screening until 30 days after the last dose of study drug.
- A male participant who had not had a vasectomy and was sexually active with a woman of childbearing potential had to agree to use effective contraception from the date of Screening to 90 days after the last dose of study drug.
- Participant had to be willing and able to adhere to the assessments, visit schedules, prohibitions and restrictions, as described in this protocol.
You may not qualify if:
- Laboratory Screening results as indicated below:
- Total white blood cells (WBC) \<3000 cells/mm3
- Absolute neutrophil count (ANC) \<1500 cells/mm3
- Platelet count \<140,000/mm3
- International Normalized Ratio, INR \>1.2 (unless due to use of anticoagulants)
- Estimated glomerular filtration rate (eGFR) \< 60 mL/min according to the Modification of Diet in Renal Disease (MDRD) equation
- AST ≥5× ULN
- ALT ≥5× ULN
- ALP ≥2× ULN
- Total bilirubin \> 1.5 times ULN during Screening. \[Note: Patients with Gilbert's syndrome were allowed following review by the Medical Monitor if they had a known history of Gilbert's syndrome with a normal direct bilirubin value and normal reticulocyte count.\]
- Pregnant or nursing females.
- MELD: Model for End-stage Liver Disease score \>12.
- Clinical or laboratory evidence of known chronic liver disease such as alcoholic liver disease, primary biliary cholangitis (PBC), primary sclerosing cholangitis (PSC), autoimmune hepatitis, Wilson disease, iron overload, alpha-1-antitrypsin deficiency, drug-induced liver injury, known or suspected hepatocellular carcinoma (HCC).
- History of acute liver complications due to gallstones (e.g., acute cholecystitis or acute biliary obstruction) unless the participant had a cholecytectomy (more than 3 months prior to screening).
- History of liver transplant, or current placement on a liver transplant list.
- +20 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (81)
Arizona Liver Health
Chandler, Arizona, 85224, United States
The Institute of Liver Health
Glendale, Arizona, 85306, United States
Dignity Health DBA St. Joseph's Hospital and Medical Center
Phoenix, Arizona, 85013, United States
Del Sol Research Management LLC
Tucson, Arizona, 85710, United States
Rajeev Krishan, MD, Inc
Bakersfield, California, 93309, United States
eStudy Site
Chula Vista, California, 91911, United States
Southern California Research Center
Coronado, California, 92118, United States
St. Jude Hospital Yorba Linda DBA St. Joseph Heritage Healthcare
Fullerton, California, 92835, United States
National Institute of Clinical Research, Inc
Garden Grove, California, 92844, United States
eStudySite - La Mesa
La Mesa, California, 91942, United States
Om Research LLC
Lancaster, California, 93534, United States
Keck Medical Center Of USC
Los Angeles, California, 90033, United States
Inland Empire Liver Foundation
Rialto, California, 92377, United States
UC Davis Medical Center
Sacramento, California, 95817, United States
Southern California Gastrointestinal and Liver Centers
San Clemente, California, 92673, United States
Precision Research Institute, Llc
San Diego, California, 92114, United States
Paradigm Clinical Research Institute
Torrance, California, 90502, United States
Universal Axon Clinical Research
Doral, Florida, 33166, United States
Fleming Island Center for Clinical Research
Fleming Island, Florida, 32003, United States
Universal Axon- Homestead, LLC
Homestead, Florida, 33030, United States
Nature Coast Clinical Research
Inverness, Florida, 34452, United States
Westside Center for Clinical Research
Jacksonville, Florida, 32205, United States
Jacksonville Center for Endoscopy - Southside ; Borland Groover Clinic
Jacksonville, Florida, 32226, United States
Encore Borland Groover Clinical Research
Jacksonville, Florida, 32256, United States
Meridien Research
Lakeland, Florida, 33803, United States
Meridien Research
Maitland, Florida, 32751, United States
Research Associates of South Florida
Miami, Florida, 33134, United States
University of Miami, Miller School of Medicine-Don Soffer Clinical Research Center
Miami, Florida, 33136, United States
Well Pharma Medical Research, Corp.
Miami, Florida, 33173, United States
Med Research Of Florida, LLC
Miami, Florida, 33186, United States
San Marcus Research Clinic, Inc.
Miami Lakes, Florida, 33014, United States
Ocala GI Research
Ocala, Florida, 34471, United States
IMIC, Inc.
Palmetto Bay, Florida, 33157, United States
Meridien Research
St. Petersburg, Florida, 33709, United States
Guardian Angel Research
Tampa, Florida, 33614, United States
Agile Clinical Research Trials, LLC
Atlanta, Georgia, 30328, United States
Northwestern University
Chicago, Illinois, 60611, United States
Rush University Medical Center - University Cardiovascular Surgeons
Chicago, Illinois, 60612-3852, United States
Digestive Research Alliance of Michiana
South Bend, Indiana, 46635, United States
University Of Iowa Hospital & Clinics
Iowa City, Iowa, 52242, United States
Ochsner Health System
New Orleans, Louisiana, 70115-6969, United States
University of Maryland
Baltimore, Maryland, 21201, United States
Mercy Medical Center
Baltimore, Maryland, 21202, United States
Digestive Disease Associates, PA
Catonsville, Maryland, 21228, United States
Mid-Atlantic GI Research
Greenbelt, Maryland, 20770, United States
Henry Ford Health Hospital
Detroit, Michigan, 48202, United States
Southern Therapy and Advanced Research LLC GI Associates and Endoscopy Center
Jackson, Mississippi, 39216, United States
St. Louis Univ. School Of Medicine
St Louis, Missouri, 63104, United States
AGA Clinical Research Associates, LLC
Egg Harbor, New Jersey, 08234, United States
Intercity Gastroenterology
Fresh Meadows, New York, 11366, United States
New York University Medical Centre
New York, New York, 10016, United States
University of Rochester Medical Center School of Medicine and Dentistry
Rochester, New York, 14642, United States
Northeast GI Research Division
Concord, North Carolina, 28027, United States
Carolinas HealthCare System Digestive - Huntersville
Huntersville, North Carolina, 28078, United States
Lucas Research
Morehead City, North Carolina, 28557, United States
Cleveland Clinic - Taussig Cancer Institute
Cleveland, Ohio, 44195, United States
University of Pittsburgh Medical Center - Center for Liver Diseases
Pittsburgh, Pennsylvania, 15213, United States
Digestive Health Research, LLC
Hermitage, Tennessee, 37076, United States
Digestive Health Research
Lebanon, Tennessee, 37090, United States
Quality Medical Research
Nashville, Tennessee, 37211, United States
Texas Clinical Research Institute
Arlington, Texas, 76012, United States
Texas Diabetes & Endocrinology
Austin, Texas, 78749, United States
Crescent Health Clinical
DeSoto, Texas, 75115, United States
DHAT Research Institute
Garland, Texas, 75044, United States
American Research Corporation at The Texas Liver Institute
San Antonio, Texas, 78215, United States
Clinical Trials of Texas, Inc.
San Antonio, Texas, 78229, United States
Bon Secours St. Mary's Hospital of Richmond, Inc
Newport News, Virginia, 23602, United States
Liver Institute Northwest
Seattle, Washington, 98105, United States
CINME
Buenos Aires, Buenos Aires F.D., C1056AB, Argentina
University of Calgary
Calgary, Alberta, T2N 4Z6, Canada
Klinikum der Johann Wolfgang Goethe-Universitaet Frankfurt
Frankfurt am Main, Hesse, 60590, Germany
Universitaetsmedizin der Johannes Gutenberg Universitaet Mainz KoeR
Mainz, Rhineland-Palatinate, 55131, Germany
Latin Clinical Trial Center
San Juan, 00909, Puerto Rico
MediNova West London Quality Research Site
Wokingham, Berkshire, RG40 1XS, United Kingdom
MeDiNova East London Quality Research Site
Romford, Essex, RM1 3PJ, United Kingdom
King's College Hospital - King's College Hospital NHS Foundation Trust
London, Greater London, SE5 9RS, United Kingdom
MeDiNova South London Quality Research Site
Sidcup, Kent, DA14 6LT, United Kingdom
MeDiNova Northampton Dedicated research site
Corby, Northamptonshire, NN18 9EZ, United Kingdom
MeDiNova Warwickshire Quality Research Site
Kenilworth, Warwickshire, CV81JD, United Kingdom
MeDiNova Yorkshire Quality Research Site
Shipley, Yorkshire, BD18 3SA, United Kingdom
MeDiNova North London Quality Research Site
Middlesex, HA6 2RN, United Kingdom
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Limitations and Caveats
No limitations reported for the study.
Results Point of Contact
- Title
- Alaa Ahmad
- Organization
- Enanta Pharmaceuticals, Inc
Study Officials
- STUDY DIRECTOR
Enanta Pharmaceuticals, Inc
Enanta Pharmaceuticals, Inc
Publication Agreements
- PI is Sponsor Employee
- No
- Restriction Type
- OTHER
- Restrictive Agreement
- Yes
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- TRIPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
May 4, 2020
First Posted
May 7, 2020
Study Start
January 27, 2020
Primary Completion
October 4, 2021
Study Completion
November 30, 2021
Last Updated
May 19, 2023
Results First Posted
May 19, 2023
Record last verified: 2023-04
Data Sharing
- IPD Sharing
- Will not share