EloraTZP for weight loss in adults with overweight/obesity and type 2 diabetes
Official title: A Phase 3 Study to Investigate the Efficacy and Safety of LY900043 in Adult Participants With Obesity or Overweight and Type 2 Diabetes
Run by Eli Lilly and Company · NCT07881458 · Data updated 2026-11-12
This trial tests whether a coformulation of eloralintide and tirzepatide helps people with obesity or overweight and type 2 diabetes lose weight compared with tirzepatide alone.
Quick facts
| Phase | Phase 3 |
|---|---|
| Study type | Interventional |
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 1000 (estimated) |
| Sponsor | Eli Lilly and Company Industry-sponsored |
| Locations | 75 sites (Tucson, Arizona and 74 other locations) |
| Status | Recruiting |
| Started | October 16, 2026 |
| Main results expected | October 2029 |
| Study ends | November 2029 |
| Registry record updated | November 4, 2026 |
| Trial ID | NCT07881458 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults with type 2 diabetes, BMI ≥27 kg/m2, stable weight for 90 days, and a history of unsuccessful prior weight-loss efforts.
✕Probably not a fit
Individuals with type 1 diabetes, recent obesity-related procedures, or recent use of certain boxed medications or insulin may not benefit from this therapy.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This phase 3 interventional study compares the weight-reduction effects and safety of the eloralintide-tirzepatide coformulation (EloraTZP) to tirzepatide in adults with obesity or overweight and type 2 diabetes. Participants are adults with BMI ≥27 kg/m2 who have had limited weight loss despite prior efforts, and who meet specific medical criteria. The study lasts about two years and excludes individuals with certain prior obesity procedures, specific competing medications, or type 1 diabetes. Outcomes focus on body weight changes and safety signals related to the combination therapy. Conducted at sites in Arizona and California under Eli Lilly and partnering centers.
Why it matters
Potential benefit: If successful, EloraTZP could provide greater weight loss and improved metabolic health for adults with obesity or overweight and type 2 diabetes.
How similar studies have gone: Prior studies with GLP-1/GIP-based therapies and similar agents have shown promise for weight loss, but the specific EloraTZP coformulation represents a novel combination approach.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Have type 2 diabetes * Have a stable self-reported body weight (\<5% body weight change) for 90 days prior to screening * Have a BMI of ≥27 kg/m2 at screening * Have a history of at least 1 self-reported unsuccessful dietary effort to reduce body weight Exclusion Criteria: * Have a prior or planned surgical treatment for obesity (liposuction, cryolipolysis, or abdominoplasty allowed if performed \>1 year before screening) * Have a prior or planned endoscopic procedure and/or device-based therapy for obesity and/or type 2 diabetes (prior device-based therapy acceptable if device removal was more than 6 months prior to screening) * Have type 1 diabetes * Have taken any of the following within 90 days prior to screening * medications with direct amylin, glucagon-like peptide-1 (GLP-1) or glucagon-dependent insulinotropic polypeptide (GIP) receptor activity, including compounded therapies * dipeptidyl peptidase 4 (DPP-4) inhibitors, and * insulin * Have had within 90 days prior to screening: * heart attack * stroke * coronary artery revascularization * unstable angina, or * hospitalization due to congestive heart failure * Have a history or diagnosis of New York Heart Association Functional Classification Class IV congestive heart failure * Have taken medications or alternative remedies intended for weight loss within 90 days of screening
Where it's running
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Los Angeles Institute for Metabolic Research
Los Angeles, California, United States Recruiting -
Tucson Clinical Research Institute
Tucson, Arizona, United States Not yet recruiting -
Pacific Clinical Studies Inc.
Los Alamitos, California, United States Not yet recruiting -
University of Colorado Anschutz Medical Campus
Aurora, Colorado, United States Not yet recruiting -
American Research Centers of Florida
Pembroke Pines, Florida, United States Not yet recruiting -
Encore Medical Research - Weston
Weston, Florida, United States Not yet recruiting
Show 44 more locations
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Care Access - Dalton - Clinical Trials Center by Walmart & Care Access
Dalton, Georgia, United States Not yet recruiting -
Pacific Diabetes & Endocrine Center
Honolulu, Hawaii, United States Not yet recruiting -
DM Clinical Research - Indianapolis
Indianapolis, Indiana, United States Not yet recruiting -
Care Access - Eunice
Eunice, Louisiana, United States Not yet recruiting -
Tandem Clinical Research
Marrero, Louisiana, United States Not yet recruiting -
Care Access - St. Louis
St Louis, Missouri, United States Not yet recruiting -
IMA Clinical Research Warren
Warren Township, New Jersey, United States Not yet recruiting -
NYC Research
New York, New York, United States Not yet recruiting -
IMA Clinical Research NYC Midtown
New York, New York, United States Not yet recruiting -
IMA Clinical Research Austin
Austin, Texas, United States Not yet recruiting -
Diabetes and Thyroid Center of Ft. Worth
Fort Worth, Texas, United States Not yet recruiting -
Juno Research
Houston, Texas, United States Not yet recruiting -
Care Access - Houston - Clinical Trials Center by Walmart & Care Access
Houston, Texas, United States Not yet recruiting -
ERA Health Research-Texas
Midland, Texas, United States Not yet recruiting -
Texas Valley Clinical Research (TVCR) - Mission
Mission, Texas, United States Not yet recruiting -
IMA Clinical Research San Antonio
San Antonio, Texas, United States Not yet recruiting -
Care Access - Tyler - Clinical Trials Center by Walmart & Care Access
Tyler, Texas, United States Not yet recruiting -
Washington Center for Weight Management and Research
Arlington, Virginia, United States Not yet recruiting -
Eastside Research Associates
Redmond, Washington, United States Not yet recruiting -
Centro de Pesquisa Sao Lucas
Campinas, Brazil Not yet recruiting -
Cline Research Center
Curitiba, Brazil Not yet recruiting -
Núcleo de Pesquisa Clínica do Rio Grande do Sul
Porto Alegre, Brazil Not yet recruiting -
IBPClin - Instituto Brasil de Pesquisa Clínica
Rio de Janeiro, Brazil Not yet recruiting -
Cpclin
São Paulo, Brazil Not yet recruiting -
CEPIC - Centro Paulista de Investigação Clínica
São Paulo, Brazil Not yet recruiting -
The Second Hospital of Jilin University
Changchun, China Not yet recruiting -
Jinan Central Hospital
Jinan, China Not yet recruiting -
The First Affiliated Hospital of Henan University of Science &Technology
Luoyang Shi, China Not yet recruiting -
The Second Affiliated Hospital of Nanjing Medical University
Nanjing, China Not yet recruiting -
Ningbo First Hospital
Ningbo, China Not yet recruiting -
The First Hospital of Hebei Medical University
Shijiazhuang, China Not yet recruiting -
Tianjin Medical University Zhu Xianyi Memorial Hospital
Tianjin, China Not yet recruiting -
StudyPoint Duisburg
Duisburg, Germany Not yet recruiting -
Diabetes Zentrum Wilhelmsburg
Hamburg, Germany Not yet recruiting -
Institut für Diabetesforschung GmbH Münster
Münster, Germany Not yet recruiting -
Schwerpunktpraxis für Diabetes und Ernährungsmedizin Dr. med. Winfried Keuthage
Münster, Germany Not yet recruiting -
FutureMeds Offenbach
Offenbach, Germany Not yet recruiting -
RED-Institut GmbH
Oldenburg, Germany Not yet recruiting -
Medical Corporation Chiseikai Tokyo Center Clinic
Chūōku, Japan Not yet recruiting -
Tokyo Asbo Clinic
Chūōku, Japan Not yet recruiting -
Chiba Saiseikai Narashino hospital
Narashino, Japan Not yet recruiting -
Soka Sugiura Internal Medicine Clinic
Sōka, Japan Not yet recruiting -
Tsuchiura Beryl Clinic
Tsuchiura, Japan Not yet recruiting -
Latin Clinical Trial Center
San Juan, Puerto Rico Not yet recruiting
+25 more sites. See ClinicalTrials.gov for the full list.
Study contacts
- Study coordinator: Trial questions or participation questions: 1-877-CTLILLY (1-877-285-4559) or
- Email: LillyTrials@Lilly.com
- Phone: 317-615-4559
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.