A Study of LY3841136 Compared With Placebo in Adult Participants With Obesity or Overweight

May 28, 2026 updated by: Eli Lilly and Company

A Phase 2, Parallel-Group, Double-Blind Study to Investigate Weight Management With LY3841136 Compared With Placebo in Adult Participants With Obesity or Overweight

The main purpose of this study, performed under the master protocol W8M-MC-CWMM (NCT06143956), is to investigate weight management efficacy and safety with LY3841136 compared with placebo in adult participants with obesity or overweight. The study will last about 64 weeks and may include up to 17 visits.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
263

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.
  • Name: There may be multiple sites in this clinical trial. 1-877-CTLILLY (1-877-285-4559) or
  • Phone Number: 1-317-615-4559
  • Email: ClinicalTrials.gov@lilly.com

Study Locations

  • United States
    • Arizona
      • Chandler, Arizona, United States, 85225
        • The Institute for Liver Health II dba Arizona Clinical Trials - Mesa
      • Scottsdale, Arizona, United States, 85260
        • Headlands Research - Scottsdale
      • Tucson, Arizona, United States, 85712
        • The Institute for Liver Health II dba Arizona Liver Health-Tucson
    • California
      • Greenbrae, California, United States, 94904
        • NorCal Medical Research, Inc
      • Huntington Park, California, United States, 90255
        • Velocity Clinical Research, Huntington Park
      • Rolling Hills Estates, California, United States, 90274
        • Peninsula Research Associates
      • Walnut Creek, California, United States, 94598
        • Diablo Clinical Research, Inc.
    • Florida
      • Fleming Island, Florida, United States, 32003
        • Northeast Research Institute (NERI)
      • New Port Richey, Florida, United States, 34652
        • Suncoast Clinical Research, Inc.
      • Orlando, Florida, United States, 32803
        • Charter Research - Winter Park
      • The Villages, Florida, United States, 32162
        • Charter Research - Lady Lake
    • Hawaii
      • Honolulu, Hawaii, United States, 96817
        • Pacific Diabetes & Endocrine Center
    • Idaho
      • Ammon, Idaho, United States, 83406
        • Medical Research Partners
    • Illinois
      • Chicago, Illinois, United States, 60640
        • Great Lakes Clinical Trials - Andersonville
      • Chicago, Illinois, United States, 60640
        • Great Lakes Clinical Trials - Ravenswood
      • Skokie, Illinois, United States, 60077
        • Northshore University Health System
    • Iowa
      • West Des Moines, Iowa, United States, 50265
        • Iowa Diabetes and Endocrinology Research Center
    • Kansas
      • Topeka, Kansas, United States, 66606
        • Cotton O'Neil Diabetes & Endocrinology
    • Kentucky
      • Louisville, Kentucky, United States, 40213
        • L-MARC Research Center
    • Massachusetts
      • Needham, Massachusetts, United States, 02492
        • Knownwell
      • New Bedford, Massachusetts, United States, 02740
        • Lucida Clinical Trials
    • Michigan
      • Southfield, Michigan, United States, 48034
        • Headlands Research - Detroit
      • Troy, Michigan, United States, 48098
        • Arcturus Healthcare , PLC, Troy Internal Medicine Research Division
    • Missouri
      • City of Saint Peters, Missouri, United States, 63303
        • StudyMetrix Research
    • Nevada
      • Las Vegas, Nevada, United States, 89128
        • Las Vegas Medical Research
    • New York
      • Amherst, New York, United States, 14226
        • Dent Neurologic Institute
      • East Syracuse, New York, United States, 13057
        • Velocity Clinical Research, Syracuse
      • Port Jefferson Station, New York, United States, 11776
        • North Suffolk Neurology
      • Rochester, New York, United States, 14609
        • Rochester Clinical Research, LLC
    • North Carolina
      • Greensboro, North Carolina, United States, 27405
        • Medication Management
      • Monroe, North Carolina, United States, 28112
        • Monroe Biomedical Research
      • New Bern, North Carolina, United States, 28562
        • Lucas Research, Inc.
    • Ohio
      • Cincinnati, Ohio, United States, 45212
        • CTI Clinical Research Center
    • South Carolina
      • Greenville, South Carolina, United States, 29607
        • Tribe Clinical Research, LLC
    • Tennessee
      • Nashville, Tennessee, United States, 37211
        • Quality Medical Research
    • Texas
      • Austin, Texas, United States, 78745
        • IMA Clinical Research Austin
      • Dallas, Texas, United States, 75230
        • Velocity Clinical Research, Dallas
      • Dallas, Texas, United States, 75251
        • FutureSearch Trials of Dallas
      • Houston, Texas, United States, 77079
        • PlanIt Research, PLLC
      • San Antonio, Texas, United States, 78240
        • Endeavor Clinical Trials
      • San Antonio, Texas, United States, 78229
        • Tekton Research - Fredericksburg Road
    • Virginia
      • Danville, Virginia, United States, 24541
        • Spectrum Medical, Inc.
    • Washington
      • Wenatchee, Washington, United States, 98801
        • Central Washington Health Services Association d/b/a Confluence Health

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

W8M-MC-LAA1

  • Are males and females who agree to abide by the reproductive and contraceptive requirements

W8M-MC-CWMM:

  • Have a body mass index (BMI)

    • ≥30 kilogram/square meter (kg/m²), or
    • ≥27 kg/m² and <30 kg/m², or with at least 1 weight-related comorbidity
  • Have had a stable body weight for the 3 months prior to randomization (<5%) body weight gain and/or loss.

Exclusion Criteria:

W8M-MC-LAA1

  • Have any prior diagnosis of diabetes mellitus except gestational diabetes.

  • Have any of the following cardiovascular conditions within 6 months prior to screening:

    • acute myocardial infarction
    • cerebrovascular accident (stroke)
    • unstable angina, or
    • hospitalization due to congestive heart failure (CHF).
  • Have a history of acute or chronic pancreatitis.
  • Have an on-going or history of bradyarrhythmia and/or sinus bradycardia at screening and baseline.

W8M-MC-CWMM

  • Have a prior or planned surgical treatment for obesity, except prior liposuction or abdominoplasty, if performed >1 year prior to screening.
  • Have type 1 diabetes mellitus, latent autoimmune diabetes in adults, or history of ketoacidosis or hyperosmolar coma.
  • Have poorly controlled hypertension.
  • Have a history of symptomatic gallbladder disease within the past 2 years
  • Have signs and symptoms of any liver disease other than nonalcoholic fatty liver disease.
  • Have a lifetime history of suicide attempts.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Placebo Comparator: Placebo
Participants received subcutaneous (SC) injections of eloralintide-matching placebo administered once weekly (QW) for 48 weeks.
Drug: Placebo
Administered SC.
Experimental: 1 mg Eloralintide
Participants received eloralintide 1 milligram (mg) SC QW for 48 weeks.
Drug: Eloralintide
Administered SC.
Other Names:
  • LY3841136
Experimental: 3 mg Eloralintide
Participants received eloralintide 3 mg SC QW for 48 weeks.
Drug: Eloralintide
Administered SC.
Other Names:
  • LY3841136
Experimental: 6 mg Eloralintide
Participants received eloralintide 6 mg SC QW for 48 weeks.
Drug: Eloralintide
Administered SC.
Other Names:
  • LY3841136
Experimental: 9 mg Eloralintide
Participants received eloralintide 9 mg SC QW for 48 weeks.
Drug: Eloralintide
Administered SC.
Other Names:
  • LY3841136
Experimental: 6/9 mg Eloralintide
Participants received eloralintide 6 mg SC QW for 20 weeks, followed by eloralintide 9 mg SC QW for 28 weeks, for a total treatment duration of 48 weeks.
Drug: Eloralintide
Administered SC.
Other Names:
  • LY3841136
Experimental: 3/6/9 mg Eloralintide
Participants received eloralintide 3 mg SC QW for 4 weeks, followed by eloralintide 6 mg SC QW for 4 weeks, followed by eloralintide 9 mg SC QW for 40 weeks, for a total treatment duration of 48 weeks.
Drug: Eloralintide
Administered SC.
Other Names:
  • LY3841136

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Percent Change From Baseline in Body Weight at Week 48
Time Frame: Baseline, Week 48
Least squares (LS) means were calculated using a mixed-model repeated measures (MMRM) model for post-baseline measures: Variable = Treatment + Time + Sex + Baseline BMI Category + Baseline + Time*Sex +Time*Baseline BMI Category + Treatment*Time + Time*Baseline. Variance-Covariance structure (Percent Change from Baseline) = Unstructured.
Baseline, Week 48

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Change From Baseline in Body Weight at Week 48
Time Frame: Baseline, Week 48
LS means were calculated using a MMRM model for post-baseline measures: Variable = Treatment + Time + Sex + Baseline BMI Category + Baseline + Time*Sex +Time*Baseline BMI Category + Treatment*Time + Time*Baseline. Variance-Covariance structure (Change from Baseline) = Unstructured.
Baseline, Week 48
Mean Percentage of Participants Who Achieved Greater Than or Equal to (≥) 5% Body Weight Reduction From Baseline to Week 48
Time Frame: Baseline to Week 48
Mean percentage of participants who achieved ≥5% body weight reduction was analysed by logistic regression model with multiple imputation. Model: Variable = Baseline + Treatment + Sex + Baseline BMI Category. Mean percentage of participants was calculated by combining percentage of participants achieving target at week 48 in imputed data sets using Rubin's rule.
Baseline to Week 48
Mean Percentage of Participants Who Achieved ≥ 10% Body Weight Reduction From Baseline to Week 48
Time Frame: Baseline to Week 48
Mean percentage of participants who achieved ≥10% body weight reduction was analysed by logistic regression model with multiple imputation. Model: Variable = Baseline + Treatment + Sex + Baseline BMI Category. Mean percentage of participants was calculated by combining percentage of participants achieving target at week 48 in imputed data sets using Rubin's rule.
Baseline to Week 48
Change From Baseline in Body Mass Index (BMI) at Week 48
Time Frame: Baseline, Week 48
LS means were calculated using a MMRM model for post-baseline measures: Variable = Treatment + Time + Sex + Baseline BMI Category + Baseline + Time*Sex +Time*Baseline BMI Category + Treatment*Time + Time*Baseline. Variance-Covariance structure (Change from Baseline) = Unstructured.
Baseline, Week 48
Pharmacokinetics (PK): Area Under the Curve (AUC) of Eloralintide at Steady State
Time Frame: Predose at Week 0, Week 4, Week 8, Week 12, Week 24, Week 36; Post dose (2 to 6 hours after dosing) at Week 0, Week 24; Post dose (24 to 72 hours after dosing) at Week 12; random at Week 48
PK samples were analyzed using a population PK model approach to estimate AUC at steady state. Data presented are Geometric Mean with 90% prediction interval (PI).
Predose at Week 0, Week 4, Week 8, Week 12, Week 24, Week 36; Post dose (2 to 6 hours after dosing) at Week 0, Week 24; Post dose (24 to 72 hours after dosing) at Week 12; random at Week 48
PK: Maximum Concentration (Cmax) of Eloralintide at Steady State
Time Frame: Predose at Week 0, Week 4, Week 8, Week 12, Week 24, Week 36; Post dose (2 to 6 hours after dosing) at Week 0, Week 24; Post dose (24 to 72 hours after dosing) at Week 12; random at Week 48
PK samples were analyzed using a population PK model approach to estimate Cmax at steady state. Data presented are Geometric Mean with 90% prediction interval (PI).
Predose at Week 0, Week 4, Week 8, Week 12, Week 24, Week 36; Post dose (2 to 6 hours after dosing) at Week 0, Week 24; Post dose (24 to 72 hours after dosing) at Week 12; random at Week 48

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Eli Lilly and Company

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Director: Call 1-877-CTLILLY (1-877-285-4559) or 1-317-615-4559 Mon - Fri 9 AM - 5 PM Eastern time (UTC/GMT - 5 hours, EST), Eli Lilly and Company

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
February 5, 2024

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
May 30, 2025

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
August 14, 2025

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
January 21, 2024

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 21, 2024

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
January 30, 2024

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
June 24, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
May 28, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
May 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 18808
  • CWMM Master Protocol (Other Identifier: Eli Lilly and Company)
  • W8M-MC-LAA1 (Other Identifier: Eli Lilly and Company)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

Anonymized individual patient level data will be provided in a secure access environment upon approval of a research proposal and a signed data sharing agreement.

IPD Sharing Time Frame

Data are available 6 months after the primary publication and approval of the indication studied in the US and EU, whichever is later. Data will be indefinitely available for requesting.

IPD Sharing Access Criteria

A research proposal must be approved by an independent review panel and researchers must sign a data sharing agreement.

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL
  • SAP
  • CSR

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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