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A Study of Retatrutide (LY3437943) in Participants Without Type 2 Diabetes Who Have Obesity or Overweight

A Phase 3b Study to Investigate the Efficacy and Safety of Different Retatrutide Dose Escalation Schemes in Participants Without Type 2 Diabetes Who Have Obesity or Overweight: A Randomized, Controlled, Double-Blind Trial

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07357415
Acronym
TRIUMPH-9
Enrollment
600
Registered
2026-01-22
Start date
2026-01-24
Completion date
2028-11-01
Last updated
2026-06-09

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Obesity, Overweight

Brief summary

The purpose of this study is to investigate the efficacy and safety of different retatrutide dose escalation schemes in participants without type 2 diabetes who have obesity or overweight. Participation in the study will last about 113 weeks.

Interventions

DRUGRetatrutide

Administered SC

Sponsors

Eli Lilly and Company
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Intervention model description

Phase 3b

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Have a Body Mass Index (BMI) at screening * ≥ 30 kilogram per square meter (kg/m2) OR * ≥ 27 kg/m2 with presence of at least one of the following weight-related conditions at screening: high blood pressure, abnormal levels of lipid, obstructive sleep apnea, heart disease * Have at least one unsuccessful attempt to lose weight by dieting

Exclusion criteria

* Have a self-reported change in body weight \>5 kilograms (kg) (11 pounds) within 90 days before screening * Have a prior or planned surgical treatment for obesity * Have type 1 diabetes or type 2 diabetes * Have a family or personal history of medullary thyroid carcinoma (MTC) or multiple endocrine neoplasia syndrome type 2 (MEN-2) * Have had within the past 90 days before screening: * heart attack * stroke * hospitalization for unstable angina or heart failure * Have New York Heart Association Functional Classification Class IV congestive heart failure * Have a history of chronic or acute pancreatitis * Have taken weight loss drugs, including over-the counter medications within 90 days prior to screening

Design outcomes

Primary

MeasureTime frame
Percent Change from Baseline in Body WeightBaseline, Week 104

Secondary

MeasureTime frame
Change from Baseline in Waist CircumferenceBaseline, Week 104
Percent Change from Baseline in TriglyceridesBaseline, Week 104
Change from Baseline in Systolic Blood PressureBaseline, Week 104
Percent Change from Baseline in High Sensitivity C-Reactive ProteinBaseline, Week 104
Change from Baseline in Impact of Weight on Quality of Life-Lite-Clinical Trials (IWQOL-Lite-CT) Total ScoreBaseline, Week 104
Overall Treatment Satisfaction with Medication for Obesity (TS-MO) ScoresWeek 104
Pharmacokinetics (PK): Steady state Average Trough PK ConcentrationBaseline through Week 104

Countries

Argentina, Canada, United States

Contacts

STUDY_DIRECTORCall 1-877-CTLILLY (1-877-285-4559) or 1-317-615-4559 Mon - Fri 8 AM - 8 PM Eastern time (UTC/GMT - 5 hours, EST)

Eli Lilly and Company

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 10, 2026