Recruiting
Phase 3

Efimosfermin Alfa

Sponsor:

GlaxoSmithKline

Code:

NCT07221227

Conditions

Non-alcoholic Fatty Liver Disease

Eligibility Criteria

Sex: All

Age: 18 - 70+

Healthy Volunteers: Not accepted

Interventions

Efimosfermin alfa

Efimosfermin alfa

Placebo

Study Details

Brief summary:

The purpose of this study is to assess the safety and efficacy of efimosfermin alfa in the resolution of steatohepatitis and improvement of liver-related clinical outcome compared to placebo in individuals with MASH and biopsy-confirmed F2- or F3-stage fibrosis.

Conditions

Non-alcoholic Fatty Liver Disease

Study ID

NCT07221227

Start date

Oct 24, 2025

Status verified date

Jul, 2026

Completion date

Dec 12, 2031

Anticipated

Primary completion date

Mar 29, 2028

Anticipated

Eligibility Criteria

Eligibility Criteria

Sex: All

Age: 18 - 70+

Healthy Volunteers: Not accepted

Inclusion Criteria:

1. Able and willing to understand and sign a written informed consent form that must be obtained prior to the initiation of study procedures
2. Age >=18 and <=75 years at enrollment
3. History or presence of 2 or more of the 5 components of metabolic syndrome per American Heart Association definition
4. Liver biopsy confirmation of MASH consistent with stage F2 or F3 fibrosis and a NAS score >=4 confirmed by a central pathologist

Exclusion Criteria:

1. Contraindication or ineligibility for percutaneous liver biopsy
2. ALT or AST >=5 x upper limit of normal (ULN)
3. Total bilirubin >=1.3 milligram per deciliter (mg/dL). Individuals with documented Gilbert's syndrome may be enrolled if they experienced an isolated increase in total bilirubin of >=1.3 mg/dL and direct bilirubin is <=20% of total bilirubin; otherwise, the individual will be excluded.
4. Serum albumin <=3.5 grams per deciliter (g/dL)
5. International normalized ratio (INR) >=1.3 not due to therapeutic anticoagulation. Individuals receiving chronic anticoagulant treatment with higher INR values may be enrolled at the discretion of the Investigator and Study Medical Monitor.
6. Alkaline phosphatase (ALP) >=2\*ULN
7. Platelet (PLT) count <140,000 per (/) cubic millimeter (mm\^3); individuals with a PLT count between 110,000/mm\^3 and 140,000/mm\^3 may be enrolled after discussion with the Study Medical Monitor.
8. Serum creatinine >=1.5 mg/dL or creatinine clearance <=60 milliliter (mL)/minute (min)/1.73 square meter by Chronic Kidney Disease Epidemiology Collaboration equation
9. Alpha-fetoprotein >=20 nanogram per milliliter (ng/mL)
10. Glycated hemoglobin >=9.0%
11. Model for End-Stage Liver Disease score >=12 unless the score is elevated in the absence of liver dysfunction (e.g., Gilbert's syndrome)
12. Phosphatidyl ethanol (PEth) >=80 ng/mL at Screening
13. Evidence of infection with any of the following:

1. Human immunodeficiency virus;
2. Hepatitis B virus (detectable HBsAg at Screening);
3. Hepatitis C virus (HCV);
14. Chronic liver disease from any other cause including, but not limited to, alcoholic liver disease; evidence of portal hypertension; viral hepatitis or any history or evidence of cirrhosis on screening liver biopsy; or decompensated liver disease such as clinical ascites, bleeding gastroesophageal varices, hepatorenal syndrome, or hepatic encephalopathy prior to Screening or Day 1.
15. Current or history of excessive alcohol intake for >=3 months within the 12-month period prior to Screening

Study Design

Enrollment

1200 participants

Anticipated

Allocation

Randomized

Intervention Model

Parallel Assignment

Primary purpose

Treatment

Interventions and Outcome Measures

Arms

experimental: Participants receiving dose level 1 of efimosfermin alfa

experimental: Participants receiving dose level 2 of efimosfermin alfa

placebo comparator: Participants receiving Placebo

Interventions

Efimosfermin alfa

Efimosfermin alfa will be administered

Efimosfermin alfa

Efimosfermin alfa will be administered

Placebo

Placebo will be administered

Primary outcome measure

  • Proportion of participants experiencing improvement in fibrosis by >=1 stage and no worsening of steatohepatitis at Week 52 [ Time Frame: At Week 52 ]
  • Proportion of participants experiencing resolution of steatohepatitis reading and no worsening of MASH CRN fibrosis score at Week 52 [ Time Frame: At Week 52 ]
  • Time from randomization to an adjudicated composite liver-related clinical outcome [ Time Frame: From Randomization (Day 1) to 48 months ]

Central Contacts and Locations

Central contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Center

+44 (0) 20 89904466GSKClinicalSupportHD@gsk.com

Locations

GSK Investigational Site

Recruiting

Chandler, Arizona, United States, 85224

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Anita Kohli

GSK Investigational Site

Recruiting

Tucson, Arizona, United States, 85712

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Hani Rizk

GSK Investigational Site

Recruiting

Little Rock, Arkansas, United States, 72211

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

John Baber

GSK Investigational Site

Recruiting

Arcadia, California, United States, 91006

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Elias Tarakji

GSK Investigational Site

Recruiting

Covina, California, United States, 91723

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Masoud Azizad

GSK Investigational Site

Recruiting

Folsom, California, United States, 95630

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Nazir Rahim

GSK Investigational Site

Recruiting

Los Angeles, California, United States, 90057

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Joseph Lamb

GSK Investigational Site

Recruiting

Montclair, California, United States, 91763

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Rizwana Mohseni

GSK Investigational Site

Recruiting

Riverdale, California, United States, 30274

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Deon Miller

GSK Investigational Site

Recruiting

San Diego, California, United States, 92120

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Julie Doan Trang Vu

GSK Investigational Site

Recruiting

Santa Maria, California, United States, 93458

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Keval Shah

GSK Investigational Site

Recruiting

Van Nuys, California, United States, 91405

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Robert Jenders

GSK Investigational Site

Recruiting

Colorado Springs, Colorado, United States, 80907

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Bhaktasharan Patel

GSK Investigational Site

Recruiting

Boynton Beach, Florida, United States, 33435

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Aaron Cohen

GSK Investigational Site

Recruiting

Cape Coral, Florida, United States, 33914

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Paige Kreegel

GSK Investigational Site

Recruiting

Clermont, Florida, United States, 34711

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Edriss Estime

GSK Investigational Site

Recruiting

Fort Myers, Florida, United States, 33912

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Charles Smith

GSK Investigational Site

Recruiting

Hialeah, Florida, United States, 33016

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Isaac Bassan

GSK Investigational Site

Recruiting

Hialeah, Florida, United States, 33016

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Jorge Diaz

GSK Investigational Site

Recruiting

Homestead, Florida, United States, 33033

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Gilberto Seco

GSK Investigational Site

Recruiting

Inverness, Florida, United States, 34452

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Paul Hellstern Jr.

GSK Investigational Site

Recruiting

Jacksonville, Florida, United States, 32216

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Jeffry Jacqmein

GSK Investigational Site

Recruiting

Kissimmee, Florida, United States, 34744

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Luis Alvarado Lopez

GSK Investigational Site

Recruiting

Lakeland, Florida, United States, 33803

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

James Andersen

GSK Investigational Site

Recruiting

Maitland, Florida, United States, 32751

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Eva Maria Heurich

GSK Investigational Site

Recruiting

Miami, Florida, United States, 33135

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Yaneicy Gonzalez Rojas

GSK Investigational Site

Recruiting

Miami, Florida, United States, 33144

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Carlos Ramos

GSK Investigational Site

Recruiting

Miami, Florida, United States, 33155

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Jorge Amaya

GSK Investigational Site

Recruiting

Miami, Florida, United States, 33156

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Lazaro M Garcia

GSK Investigational Site

Recruiting

Miami, Florida, United States, 33173

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Barbara Moscoso

GSK Investigational Site

Recruiting

Miami, Florida, United States, 33176

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Miguel Rodriguez

GSK Investigational Site

Recruiting

Miami, Florida, United States, 33184

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Franciso Bautista

GSK Investigational Site

Recruiting

Miami Lakes, Florida, United States, 33014

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Miguel Aponte

GSK Investigational Site

Recruiting

Ocala, Florida, United States, 34471

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Robert Barish

GSK Investigational Site

Recruiting

Palmetto Bay, Florida, United States, 33157

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Karen Figueredo Reyes

GSK Investigational Site

Recruiting

Sarasota, Florida, United States, 34201

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Guy Neff

GSK Investigational Site

Recruiting

Marietta, Georgia, United States, 30060

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Aasim Sheikh

GSK Investigational Site

Recruiting

Topeka, Kansas, United States, 66606

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Shekhar Challa

GSK Investigational Site

Recruiting

Bastrop, Louisiana, United States, 71220

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Bal Raj Bhandari

GSK Investigational Site

Recruiting

Marrero, Louisiana, United States, 70072

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Gary Reiss

GSK Investigational Site

Recruiting

Kansas City, Missouri, United States, 64131

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Paresh Patel

GSK Investigational Site

Recruiting

Springfield, Missouri, United States, 62703

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Dmitry Shuster

GSK Investigational Site

Recruiting

St Louis, Missouri, United States, 63141

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Fred Williams

GSK Investigational Site

Recruiting

Las Vegas, Nevada, United States, 89106

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Elliot Shin

GSK Investigational Site

Recruiting

East Syracuse, New York, United States, 13057

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Barbara Connor

GSK Investigational Site

Recruiting

New York, New York, United States, 10036

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Samar Hameed

GSK Investigational Site

Recruiting

New York, New York, United States, 10036

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Eli Shalenberg

GSK Investigational Site

Recruiting

Fayetteville, North Carolina, United States, 28304

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

John Poulos

GSK Investigational Site

Recruiting

Morehead City, North Carolina, United States, 28557

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Kathryn Lucas

GSK Investigational Site

Recruiting

Akron, Ohio, United States, 44320

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Ganesh Veerappan

GSK Investigational Site

Recruiting

Springboro, Ohio, United States, 45066

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Anjali Morey

GSK Investigational Site

Recruiting

Westlake, Ohio, United States, 44145

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Naim Alkhouri

GSK Investigational Site

Recruiting

Chattanooga, Tennessee, United States, 37421

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Chirag Patel

GSK Investigational Site

Recruiting

Arlington, Texas, United States, 76012

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Reem Ghalib

GSK Investigational Site

Recruiting

Austin, Texas, United States, 78704

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Nomita Kim

GSK Investigational Site

Recruiting

Austin, Texas, United States, 78757

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Rohit Puskoor

GSK Investigational Site

Recruiting

Austin, Texas, United States, 78759

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Michael Patrick Zimmerman

GSK Investigational Site

Recruiting

Bellaire, Texas, United States, 77401

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Everald Manning

GSK Investigational Site

Recruiting

Brownsville, Texas, United States, 78526

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Christopher Romero

GSK Investigational Site

Recruiting

Dallas, Texas, United States, 75243

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Valentine Ebuh

GSK Investigational Site

Recruiting

DeSoto, Texas, United States, 75115

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Haresh Boghara

GSK Investigational Site

Recruiting

Houston, Texas, United States, 77004

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Joseph Galati

GSK Investigational Site

Recruiting

Irving, Texas, United States, 75061

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Heather Myers

GSK Investigational Site

Recruiting

Richmond, Texas, United States, 77406

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Brian Chou

GSK Investigational Site

Recruiting

San Antonio, Texas, United States, 78209

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Robert Morin Jr

GSK Investigational Site

Recruiting

San Antonio, Texas, United States, 78215

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Eric Lawitz

GSK Investigational Site

Recruiting

San Antonio, Texas, United States, 78229

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Emanuel DeNoia

GSK Investigational Site

Recruiting

Seabrook, Texas, United States, 77586

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Joe Pouzar

GSK Investigational Site

Recruiting

Sugar Land, Texas, United States, 77479

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Harish Thakkar

GSK Investigational Site

Recruiting

Tomball, Texas, United States, 77375

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Muhammad Irfan

GSK Investigational Site

Recruiting

Waco, Texas, United States, 76710

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Gregg Lucksinger

GSK Investigational Site

Recruiting

Waco, Texas, United States, 76712

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Hanumantha Ancha

GSK Investigational Site

Recruiting

West Jordan, Utah, United States, 84088

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Barbara Rizzardi

GSK Investigational Site

Recruiting

Manassas, Virginia, United States, 20110

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Nabil Andrawis

GSK Investigational Site

Recruiting

Norfolk, Virginia, United States, 23502

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

John Smith

GSK Investigational Site

Recruiting

Seattle, Washington, United States, 98105

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Kris Kowdley

GSK Investigational Site

Recruiting

Québec, Quebec, Canada, G1N 4V3

Contacts

US GSK Clinical Trials Call Center

877-379-3718GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Centre

+44 (0) 20 8990 4466GSKClinicalSupportHD@gsk.com

Principal Investigator:

Pascale Chouinard

More Information

Sponsor

GlaxoSmithKline

Last update posted

Jul 27, 2026

Last verified

Jul, 2026

Keywords

  • Efimosfermin Alfa
  • Metabolic Dysfunction-Associated Steatohepatitis
  • Non-alcoholic Fatty Liver Disease
  • ZENITH-1

Trial information was received from ClinicalTrials.gov and was last updated on 2026-09-09. This information was provided to ClinicalTrials.gov by GlaxoSmithKline on 2026-07-27.