A Study to Investigate Weight Management With Bimagrumab (LY3985863) and Tirzepatide (LY3298176), Alone or in Combination, in Adults With Obesity or Overweight

NCT ID: NCT06643728

Last Updated: 2025-09-26

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

ACTIVE_NOT_RECRUITING

Clinical Phase

PHASE2

Total Enrollment

240 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-10-21

Study Completion Date

2027-01-31

Brief Summary

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The main purpose of this study is to evaluate the efficacy and safety of Bimagrumab and Tirzepatide, alone or in combination, in adults with obesity or overweight, with at least one obesity related comorbidity, without Type 2 Diabetes. The study will last about 70 weeks.

Detailed Description

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Conditions

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Obesity Overweight

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

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Part A: Bimagrumab Dose 2 + Tirzepatide Placebo

Participants will receive bimagrumab subcutaneously (SC) and tirzepatide placebo SC

Group Type EXPERIMENTAL

Bimagrumab

Intervention Type DRUG

Administered SC

Tirzepatide Placebo

Intervention Type DRUG

Administered SC

Part A: Bimagrumab Placebo + Tirzepatide Dose 1

Participants will receive bimagrumab placebo SC and tirzepatide SC

Group Type ACTIVE_COMPARATOR

Tirzepatide

Intervention Type DRUG

Administered SC

Bimagrumab Placebo

Intervention Type DRUG

Administered SC

Part A: Bimagrumab Placebo + Tirzepatide Dose 2

Participants will receive bimagrumab placebo SC and tirzepatide SC

Group Type ACTIVE_COMPARATOR

Tirzepatide

Intervention Type DRUG

Administered SC

Bimagrumab Placebo

Intervention Type DRUG

Administered SC

Part A: Bimagrumab Dose 1 + Tirzepatide Dose 1

Participants will receive bimagrumab SC and tirzepatide SC

Group Type EXPERIMENTAL

Bimagrumab

Intervention Type DRUG

Administered SC

Tirzepatide

Intervention Type DRUG

Administered SC

Part A: Bimagrumab Dose 1 + Tirzepatide Dose 2

Participants will receive bimagrumab SC and tirzepatide SC

Group Type EXPERIMENTAL

Bimagrumab

Intervention Type DRUG

Administered SC

Tirzepatide

Intervention Type DRUG

Administered SC

Part A: Bimagrumab Dose 2 + Tirzepatide Dose 2

Participants will receive bimagrumab SC and tirzepatide SC

Group Type EXPERIMENTAL

Bimagrumab

Intervention Type DRUG

Administered SC

Tirzepatide

Intervention Type DRUG

Administered SC

Part A: Bimagrumab Placebo + Tirzepatide Placebo

Participants will receive bimagrumab placebo SC and tirzepatide placebo SC

Group Type PLACEBO_COMPARATOR

Bimagrumab Placebo

Intervention Type DRUG

Administered SC

Tirzepatide Placebo

Intervention Type DRUG

Administered SC

Part B: Bimagrumab Dose 2 (no titration) + Tirzepatide Dose 1

Participants will receive bimagrumab SC and tirzepatide SC

Group Type EXPERIMENTAL

Bimagrumab

Intervention Type DRUG

Administered SC

Tirzepatide

Intervention Type DRUG

Administered SC

Part B: Bimagrumab Dose 2 (fast titration) + Tirzepatide Dose 1

Participants will receive bimagrumab SC and tirzepatide SC

Group Type EXPERIMENTAL

Bimagrumab

Intervention Type DRUG

Administered SC

Tirzepatide

Intervention Type DRUG

Administered SC

Part B: Bimagrumab Dose 2 (slow titration) + Tirzepatide Dose 1

Participants will receive bimagrumab SC and tirzepatide SC

Group Type EXPERIMENTAL

Bimagrumab

Intervention Type DRUG

Administered SC

Tirzepatide

Intervention Type DRUG

Administered SC

Part B: Bimagrumab Dose 1 + Tirzepatide Placebo

Participants will receive bimagrumab SC and tirzepatide placebo SC

Group Type EXPERIMENTAL

Bimagrumab

Intervention Type DRUG

Administered SC

Tirzepatide Placebo

Intervention Type DRUG

Administered SC

Part B: Bimagrumab Placebo + Tirzepatide Placebo

Participants will receive bimagrumab placebo SC and tirzepatide placebo SC

Group Type PLACEBO_COMPARATOR

Bimagrumab Placebo

Intervention Type DRUG

Administered SC

Tirzepatide Placebo

Intervention Type DRUG

Administered SC

Interventions

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Bimagrumab

Administered SC

Intervention Type DRUG

Tirzepatide

Administered SC

Intervention Type DRUG

Bimagrumab Placebo

Administered SC

Intervention Type DRUG

Tirzepatide Placebo

Administered SC

Intervention Type DRUG

Other Intervention Names

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LY3985863 BYM338 VER201 LY3298176

Eligibility Criteria

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Inclusion Criteria

* Have a BMI of

* ≥30 kilograms per square meter (kg/m2) or
* ≥27 kg/m2 and \<30 kg/m2, with at least one of the following weight-related comorbidities:

* Hypertension
* Dyslipidemia
* Cardiovascular disease
* Obstructive sleep apnea
* Have had a stable body weight for the 3 months prior to randomization (\<5% body weight gain and/or loss)

Exclusion Criteria

* Have a prior or planned surgical treatment for obesity
* Have at least one laboratory value suggestive of diabetes during screening
* Use of metformin, or any other glucose-lowering medications
* Have Type 1 Diabetes, latent autoimmune diabetes, been diagnosed with any form of diabetes mellitus except for a prior diagnosis of gestational diabetes mellitus, or history of ketoacidosis or hyperosmolar coma
* Have poorly controlled hypertension
* Have any of the following cardiovascular conditions within 3 months prior to screening:

* acute myocardial infarction
* cerebrovascular accident (stroke)
* unstable angina, or
* hospitalization due to congestive heart failure
* Have ongoing or a history of frequent intermittent or chronic tachyarrhythmia syndromes
* Have ongoing or a history of bradyarrhythmias other than sinus bradycardia
* Have a history of New York Heart Association (NYHA) Functional Classification III or IV congestive heart failure
* Have a history of symptomatic gallbladder disease within the past 2 years
* Have signs and symptoms of any liver disease
* Have a disease or condition known to cause gastrointestinal malabsorption or a known clinically significant gastric emptying abnormality
* Have a history of acute or chronic pancreatitis
* Have renal impairment, measured as estimated glomerular filtration rate \<30 mL/minute/1.73 m2
* Currently taking or have taken medications that may cause significant weight gain or promote weight loss within 3 months prior to screening
Minimum Eligible Age

18 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Eli Lilly and Company

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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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)

Role: STUDY_DIRECTOR

Eli Lilly and Company

Locations

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Pinnacle Research Group, LLC

Anniston, Alabama, United States

Site Status

Central Research Associates

Birmingham, Alabama, United States

Site Status

Diablo Clinical Research, Inc.

Walnut Creek, California, United States

Site Status

Clinical Neuroscience Solutions, Inc. dba CNS Healthcare

Jacksonville, Florida, United States

Site Status

Altus Research

Lake Worth, Florida, United States

Site Status

Suncoast Research Group

Miami, Florida, United States

Site Status

East-West Medical Research Institute

Honolulu, Hawaii, United States

Site Status

Great Lakes Clinical Trials - Ravenswood

Chicago, Illinois, United States

Site Status

SKY Integrative Medical Center/SKYCRNG

Ridgeland, Mississippi, United States

Site Status

Keystone Clinical Studies

Plymouth Meeting, Pennsylvania, United States

Site Status

Eastside Research Associates

Redmond, Washington, United States

Site Status

Rainier Clinical Research Center

Renton, Washington, United States

Site Status

Countries

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United States

Related Links

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https://trials.lilly.com/en-US/trial/546217

A Study to Investigate Weight Management With Bimagrumab (LY3985863) and Tirzepatide (LY3298176), Alone or in Combination, in Adults With Obesity or Overweight

Other Identifiers

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J4Z-MC-GIDF

Identifier Type: OTHER

Identifier Source: secondary_id

27265

Identifier Type: -

Identifier Source: org_study_id

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