CClinicalTrials.gg
RecruitingNCT07288138Updated Sep 9, 2026

A Study of a Thyroid Hormone Receptor Beta Isoform (THRβ) Agonist and an Semicarbazide Sensitive Amine Oxidase (SSAO) Inhibitor, Alone and in Combination, in Adults With Presumed Metabolic Dysfunction-associated Steatohepatitis (MASH)

A Phase 2 interventional study of Placebo and ECC4703 in Metabolic Dysfunction-associated Steatohepatitis, sponsored by Eccogene. Recruiting at 64 sites in United States. Open to participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2026-09-09.

Sponsored by Eccogene · Phase 2, Interventional, and Treatment

From the registry’s dates

  • Started Dec 2025; still recruiting 9 months later.
Phase
Phase 2
Study type
Interventional
Enrollment
160
Allocation
Randomized
Ages
18 Years to 75 Years
Sex
All
01

Study summary

The primary objective of this trial is to evaluate the dose-dependent and comparative effects of ECC4703 (low and high dose), ECC0509 (low and high dose), and their combination on hepatic fat reduction as assessed by change in magnetic resonance imaging proton density fat fraction (MRI-PDFF) at Week 12.

02

Conditions studied

  • Metabolic Dysfunction-associated Steatohepatitis

Keywords

  • Liver Disease
  • Nonalcoholic Steatohepatitis
  • ECC0509
  • ECC4703
03

In context

Liver Diseases

2,081 studies on the registry are indexed under Liver Diseases; 389 are open to participants now.

This study's planned enrollment of 160 is above the median of 50 across 1,322 interventional studies indexed under Liver Diseases.

Browse Liver Diseases studies →

Lead sponsor

Eccogene is the lead sponsor of 10 studies on the registry; 3 are open to participants now.

Of its 5 completed or terminated interventional studies of FDA-regulated products, 0 (0%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 75 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  1. Adults between 18 and 75 years of age, inclusive, who can provide written informed consent and comply with study procedures.
  2. Diagnosis of presumed MASH based on: liver biopsy within 180 days prior to screening showing an NAFLD activity score (NAS) of ≥3 and a fibrosis score (F) of F1-3 OR FibroScan® CAP >280 dB/m at screening with presence of metabolic risk factors.
  3. Evidence of hepatic steatosis confirmed by FibroScan® LSM > 7 kPa and \< 20 kPa and MRI-PDFF >8% at screening.
  4. BMI >25 kg/m\^2 to \<50 kg/m\^2 (non-Asian); BMI ≥23.0 to \<50.0 kg/m\^2 (Asian).
  5. ALT ≥60 U/L at the first screening visit and stability of ALT and AST levels during the screening period.
  6. Estimated glomerular filtration rate (eGFR) ≥60 mL/min/1.73m\^2 (Chronic Kidney Disease Epidemiology Collaboration, [CKD-EPI]).
  7. Stable body weight (no >5% change) for at least 6 months prior to screening.
  8. Willing to comply with contraception requirements (as applicable to males and females of childbearing potential).
  9. In the opinion of the investigator, able to participate safely and complete required MRI/biomarker assessments.

Exclusion criteria

Exclusion Criteria:

  1. Chronic liver disease other than metabolic dysfunction-associated steatotic liver disease (MASLD)/MASH, including alcoholic liver disease, autoimmune hepatitis, cholestatic disease, genetic liver diseases, or drug-induced liver injury.
  2. Presence of cirrhosis on liver histology according to the assessment of the central reader, and/or cross-sectional imaging evidence consistent with cirrhosis and/or portal hypertension (e.g, nodular liver contour; portosystemic collaterals, ascites, splenomegaly; known presence or history of esophageal varices; and/or elastography evidence consistent with cirrhosis).
  3. ALT and/or AST >5× Upper Limit of Normal (ULN) or ALP >2×ULN at screening.
  4. Clinically significant thyroid or adrenal dysfunction, including uncontrolled hypothyroidism, hyperthyroidism, or adrenal disorders.
  5. Type 1 diabetes, HbA1c >9.5%, or unstable type 2 diabetes requiring medication changes within 90 days.
  6. Use of medications that affect liver fat or fibrosis (e.g., Glucagon-Like Peptide-1 Receptor Agonists (GLP-1 RAs) not on a stable dose, pioglitazone, obeticholic acid, high-dose vitamin E, hepatotoxic drugs) within protocol-specified washout periods.
  7. Significant alcohol use within 1 year prior to screening.
  8. Recent cardiovascular events, including myocardial infraction (MI), stroke, unstable angina, heart failure (New York heart association [NYHA III-IV]), or uncontrolled arrhythmia.
  9. Current or recent serious psychiatric illness, including psychosis, active suicidal ideation, or suicide attempt within 5 years.
  10. Pregnancy, breastfeeding, or conditions that increase risk or interfere with study procedures, including MRI contraindications or other investigator-determined safety concerns.
05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
160 participants (estimated)

Study arms

  • Placebo comparator
    Placebo

    Drug: Placebo

  • Experimental
    ECC4703 Low Dose

    Drug: ECC4703

  • Experimental
    ECC4703 High Dose

    Drug: ECC4703

  • Experimental
    ECC4703 High Dose + ECC0509 High Dose

    Drug: ECC0509 · Drug: ECC4703

  • Experimental
    ECC0509 Low Dose

    Drug: ECC0509

  • Experimental
    ECC0509 High Dose

    Drug: ECC0509

Interventions

  • DrugPlacebo

    Placebo will be administered as matching oral capsules.

  • DrugECC4703

    ECC4703 will be administered as oral capsules.

  • DrugECC0509

    ECC0509 will be administered as oral capsules.

  • DrugECC4703

    ECC4703 will be administered as oral capsules.

06

What researchers measure

Primary outcomes

  1. Relative Change from Baseline in Liver Fat Content by MRI-PDFF, Comparing ECC4703 Monotherapy Versus Placebo

    Time frame: Baseline and Week 12

Secondary outcomes

  1. Absolute Change from Baseline in Liver Fat Content by MRI-PDFF, Comparing ECC4703 Monotherapy Versus Placebo

    Time frame: Baseline and Week 12

  2. Relative Change from Baseline in Liver Fat Content by MRI-PDFF, Comparing ECC0509 Monotherapy Versus Placebo, and the Combination of ECC4703 and ECC0509 Versus Each Component

    Time frame: Baseline and Week 12

  3. Absolute Change From Baseline in Liver Fat Content by MRI-PDFF, Comparing ECC0509 Monotherapy Versus Placebo, and the Combination of ECC4703 and ECC0509 Versus Each Component

    Time frame: Baseline and Week 12

  4. Percentage of Participants With ≥30%, ≥50%, and ≥70% Relative Reduction and Normalization (<5%) in Liver Fat Content by MRI-PDFF, Comparing ECC4703 and ECC0509 Monotherapy Versus Placebo, and the Combination of ECC4703 and ECC0509 Versus Each Component

    Time frame: Baseline and Week 12

  5. Change From Baseline in Alanine Aminotransferase (ALT), Comparing ECC4703 and ECC0509 Monotherapy Versus Placebo, and the Combination of ECC4703 and ECC0509 Versus Each Component

    Time frame: Baseline and Week 12

  6. Percentage of Participants Achieving ≥17-unit Reduction in ALT, Comparing ECC4703 and ECC0509 Monotherapy Versus Placebo, and the Combination of ECC4703 and ECC0509 Versus Each Component

    Time frame: Week 12

  7. Percentage of Participants With 30% Reduction in MRI-PDFF, Comparing ECC4703 and ECC0509 Monotherapy Versus Placebo, and the Combination of ECC4703 and ECC0509 Versus Each Component

    Time frame: Week 12

  8. Change from Baseline in Aspartate Aminotransferase (AST), Comparing ECC4703 and ECC0509 Monotherapy Versus Placebo, and the Combination of ECC4703 and ECC0509 Versus Each Component

    Time frame: Baseline and Week 12

  9. Change from Baseline in Alkaline Phosphatase (ALP), Comparing ECC4703 and ECC0509 Monotherapy Versus Placebo, and the Combination of ECC4703 and ECC0509 Versus Each Component

    Time frame: Baseline and Week 12

  10. Change from Baseline in Gamma-glutamyl Transferase (GGT), Comparing ECC4703 and ECC0509 Monotherapy Versus Placebo, and the Combination of ECC4703 and ECC0509 Versus Each Component

    Time frame: Baseline and Week 12

  11. Change from Baseline in Fibrosis-4 Index (FIB-4), Comparing ECC4703 and ECC0509 Monotherapy Versus Placebo, and the Combination of ECC4703 and ECC0509 Versus Each Component

    Time frame: Baseline and Week 12

  12. Change from Baseline in AST to Platelet Ratio Index (APRI), Comparing ECC4703 and ECC0509 Monotherapy Versus Placebo, and the Combination of ECC4703 and ECC0509 Versus Each Component

    Time frame: Baseline and Week 12

  13. Change from Baseline in FibroScan AST Score (FAST), Comparing ECC4703 and ECC0509 Monotherapy Versus Placebo, and the Combination of ECC4703 and ECC0509 Versus Each Component

    Time frame: Baseline and Week 12

  14. Change from Baseline in Non-alcoholic Fatty Liver Disease (NAFLD) Fibrosis Score (NFS), Comparing ECC4703 and ECC0509 Monotherapy Versus Placebo, and the Combination of ECC4703 and ECC0509 Versus Each Component

    Time frame: Baseline and Week 12

  15. Change from Baseline in Enhanced Liver Fibrosis (ELF) Score, Comparing ECC4703 and ECC0509 Monotherapy Versus Placebo, and the Combination of ECC4703 and ECC0509 Versus Each Component

    Time frame: Baseline and Week 12

  16. Change from Baseline in MASH Resolution Index, Comparing ECC4703 and ECC0509 Monotherapy Versus Placebo, and the Combination of ECC4703 and ECC0509 Versus Each Component

    Time frame: Baseline and Week 12

  17. Change from Baseline in FibroScan Liver Stiffness Measurement (LSM), Comparing ECC4703 and ECC0509 Monotherapy Versus Placebo, and the Combination of ECC4703 and ECC0509 Versus Each Component

    Time frame: Baseline and Week 12

  18. Change from Baseline in FibroScan Controlled Attenuation Parameter (CAP), Comparing ECC4703 and ECC0509 Monotherapy Versus Placebo, and the Combination of ECC4703 and ECC0509 Versus Each Component

    Time frame: Baseline and Week 12

  19. Change from Baseline in Total Cholesterol (TC), Triglycerides (TG), High-density Lipoprotein (HDL), Low-density Lipoprotein (LDL) and Apoprotein B (ApoB)

    Time frame: Baseline to Week 12

  20. Change from Baseline in Lipoprotein(a) (Lp[a]) Profiles

    Time frame: Baseline to Week 12

  21. Change from Baseline in Hemoglobin A1c (HbA1c)

    Time frame: Baseline to Week 12

  22. Change from Baseline in Fasting Plasma Glucose (FPG)

    Time frame: Baseline to Week 12

  23. Change from Baseline in Fasting Insulin

    Time frame: Baseline to Week 12

  24. Change from Baseline in Homeostatic Model Assessment of Insulin Resistance (HOMA-IR) Profiles

    Time frame: Baseline to Week 12

  25. Change from Baseline in Body Weight

    Time frame: Baseline to Week 12

  26. Change from Baseline Body Mass Index (BMI)

    Time frame: Baseline to Week 12

  27. Change from Baseline in Plasma Methylamine

    Time frame: Baseline to Week 12

  28. Change from Baseline in Cytokeratin-18 (CK-18)

    Time frame: Baseline to Week 12

  29. Change from Baseline in C-telopeptide of Type III Collagen (CTX-III)

    Time frame: Baseline to Week 12

  30. Change from Baseline in N-terminal Pro-peptide of Type III Collagen (Pro-C3)

    Time frame: Baseline to Week 12

  31. Change in Ratio of Pro-C3

    Time frame: Week 12

  32. Change in Ratio of CTX-III

    Time frame: Week 12

  33. Change from Baseline in Chronic Liver Disease Questionnaire (CLDQ)

    Time frame: Baseline and Week 12

  34. Change from Baseline in Short-form Liver Disease Quality of Life (SF-LDQOL)

    Time frame: Baseline to Week 12

  35. Plasma Concentration of ECC4703 and ECC0509

    Time frame: Day 1, Weeks 2, 4, 6, 8, and 12

07

Study locations

63 of 64 sites recruiting
  • Arizona Liver Health
    Chandler, Arizona 85224, United States
    Recruiting
  • Arizona Liver Health - Peoria
    Peoria, Arizona 85381, United States
    Recruiting
  • Adobe Clinical Research, LLC
    Tucson, Arizona 85712, United States
    Recruiting
  • Arizona Liver Health - Tucson
    Tucson, Arizona 85712, United States
    Recruiting
  • Arkansas Gastroenterology, P.A
    Little Rock, Arkansas 71913, United States
    Recruiting
  • ARcare Center for Clinical Research
    Little Rock, Arkansas 77205, United States
    Recruiting
  • Om Research
    Apple Valley, California 92307, United States
    Recruiting
  • ARK Clinical Research - Fountain Valley
    Fountain Valley, California 92708, United States
    Recruiting
  • UCSD Medical Center
    La Jolla, California 92037, United States
    Recruiting
  • Om Research
    Lancaster, California 93534, United States
    Recruiting
  • Ark Clinical Research
    Long Beach, California 90815, United States
    Recruiting
  • Knowledge Research Center
    Orange, California 92868, United States
    Recruiting
  • Om Research
    Victorville, California 92395, United States
    Recruiting
  • Synergy Healthcare
    Bradenton, Florida 33511, United States
    Recruiting
  • Synergy Healthcare
    Bradenton, Florida 34209, United States
    Recruiting
  • Health Awareness, Inc.
    Jupiter, Florida 33458, United States
    Recruiting
  • Evolution Clinical Trials
    Miami, Florida 33122, United States
    Recruiting
  • Floridian Clinical Research, LLC
    Miami Lakes, Florida 33016, United States
    Recruiting
  • Ocala GI Research
    Ocala, Florida 34471, United States
    Recruiting
  • Progressive Medical Research
    Port Orange, Florida 32127, United States
    Recruiting
  • ClinCloud, LLC
    Viera, Florida 32940, United States
    Recruiting
  • Metabolic Research Institute
    West Palm Beach, Florida 33401, United States
    Recruiting
  • CenExel - iResearch
    Decatur, Georgia 30030, United States
    Recruiting
  • Gastrointestinal Specialists of Georgia, PC
    Marietta, Georgia 30060, United States
    Recruiting
  • Digestive Research Alliance of Michiana
    South Bend, Indiana 46635, United States
    Recruiting
  • Tandem Clinical Research
    Covington, Louisiana 70433, United States
    Recruiting
  • Tandem Clinical Research
    Houma, Louisiana 70360, United States
    Recruiting
  • Tandem Clinical Research GI, LLC
    Marrero, Louisiana 70072, United States
    Recruiting
  • Tandem Clinical Research
    Metairie, Louisiana 70006, United States
    Recruiting
  • Delta Research Partners
    Monroe, Louisiana 71201, United States
    Recruiting
  • Louisiana Research Center, LLC
    Shreveport, Louisiana 71105, United States
    Recruiting
  • Delta Research Partners, LLC
    West Monroe, Louisiana 71291, United States
    Recruiting
  • Mid-Atlantic GI Research
    Greenbelt, Maryland 20770, United States
    Recruiting
  • Gastrointestinal Associates
    Columbia, Missouri 65201, United States
    Recruiting
  • Gateway GI Research, LLC
    St Louis, Missouri 63141, United States
    Recruiting
  • Jubilee Clinical Research, Inc
    Las Vegas, Nevada 89106, United States
    Recruiting
  • Clinical Research Integrity (CRI) Lifetree, LLC
    Marlton, New Jersey 08053, United States
    Recruiting
  • Premier Health Research
    Sparta, New Jersey 07871, United States
    Recruiting
  • Coastal Research Institute
    Fayetteville, North Carolina 28304, United States
    Recruiting
  • Akron Gastro Research
    Akron, Ohio 44333, United States
    Recruiting
  • Digestive Specialists
    Dayton, Ohio 45414, United States
    Recruiting
  • DSI Research
    Springboro, Ohio 45066, United States
    Recruiting
  • Clinical Research Institute of Ohio (CRIOH), LLC
    Westlake, Ohio 44145, United States
    Recruiting
  • Columbia Gastroenterology Associates, Llc
    Columbia, South Carolina 29204, United States
    Recruiting
  • Pinnacle Clinical Research
    Austin, Texas 78757, United States
    Recruiting
  • Bellaire Clinical Research
    Bellaire, Texas 77401, United States
    Recruiting
  • South Texas Research Institute (STRI) - Brownsville
    Brownsville, Texas 78520, United States
    Recruiting
  • Pinnacle Clinical Research
    Corpus Christi, Texas 78404, United States
    Recruiting
  • South Texas Research Institute (STRI)
    Edinburg, Texas 78539, United States
    Recruiting
  • Dallas Research Institute, LLC
    Farmers Branch, Texas 75234, United States
    Recruiting
  • Care United Research
    Forney, Texas 75126, United States
    Recruiting
  • Evidentis Clinical Research
    Fort Worth, Texas 76104, United States
    Recruiting
  • Pinnacle Clinical Research - Georgetown
    Georgetown, Texas 78626, United States
    Recruiting
  • Houston Research Institute - Medical Center
    Houston, Texas 770004, United States
    Recruiting
  • Houston Research Institute
    Houston, Texas 77079, United States
    Recruiting
  • Houston Research Institute - Pasadena
    Pasadena, Texas 77505, United States
    Recruiting
  • Quality Research, Inc.
    San Antonio, Texas 78209, United States
    Recruiting
  • Pinnacle Clinical Research - South San Antonio
    San Antonio, Texas 78222, United States
    Recruiting
  • Pinnacle Clinical Research
    San Antonio, Texas 78229, United States
    Recruiting
  • Sugarland Medical Associates (Sma)
    Sugar Land, Texas 77478, United States
    Recruiting
  • Digestive Research of Central Texas
    Waco, Texas 76712, United States
    Completed
  • Digestive Health Research of North Texas, LLC
    Wichita Falls, Texas 76301, United States
    Recruiting
  • GI Alliance Richmond
    Richmond, Virginia 23229, United States
    Recruiting
  • GI Select Health Research
    Richmond, Virginia 23236, United States
    Recruiting
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 9, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07288138
Lead sponsor
Eccogene
Responsible party
Sponsor
First posted
Dec 17, 2025
Start date
Dec 15, 2025
Primary completion
Sep 15, 2027 (estimated)
Completion
Sep 29, 2027 (estimated)
Last update
Sep 9, 2026

Study contacts

Eccogene Clinical Trials
Contact
contact@eccogene.com
86-21-61053022
Eccogene Clinical Trials
study director · Eccogene

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Interested in this study?

Eligibility is decided by the study team. Share this record with your doctor or contact the team directly.

Contact study team

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion