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CompletedPhase 1

A Study in People With Overweight or Obesity to Test How BI 1820237, BI 456906, or a Combination of Both Affects Brain Activity

A Single-dose, Randomized, Placebo-controlled Phase I Study on the Effects of a Subcutaneous Dose of BI 1820237 and BI 456906, and Combination Thereof on Functional MRI Measurements in Otherwise Healthy Male and Female Individuals With Obesity/Overweight (Single-blind, Cross-over Design)

Asset

Survodutide

Subcutaneous · GLP-1 / glucagon dual

Listed sites

1

Recruiting sites

Enrollment

23

actual

Study population

Obesity / overweight

Key I/E criterion

BMI 27-40

Primary endpoint

Blood Oxygen Level Dependent (BOLD) signal changes following treatment

Footprint

Where this trial recruits

Site locations as reported to ClinicalTrials.gov. Site count is not enrollment count; per-site enrollment is not available from source.

Identifiers

Registered as

NCT IDNCT06352424
Org study ID1458-0006
Secondary ID2023-506233-30-01CTIS (EU)
Secondary IDU1111-1293-4672WHO Registry

Timeline

Milestones

Study first posted2024-04-08actual
Study start2024-04-30actual
Primary completion2025-02-24actual
Study completion2025-02-24actual
Last update posted2025-03-12actual

Assets

Investigational agents

Study populations

Who this study enrolls

Obesity / overweight

Eligibility

Who can enroll

Minimum age40 Years
Maximum age60 Years
SexAll
Healthy volunteersNot accepted

Inclusion criteria

1. Male or female subjects with obesity/overweight (otherwise healthy) according to the assessment of the Investigator, as based on a complete medical history including a physical examination, vital signs (Blood pressure (BP), pulse rate (PR)), 12-lead electrocardiogram (ECG), and clinical laboratory tests

2. Age of 40 to 60 years (inclusive)

3. Body mass index (BMI) of 27.0 to 40.0 kg/m2 (inclusive). Overweight/obesity should be due to excess adipose tissue, as judged by the Investigator

4. Body weight greater than or equal to 75 kg

5. Signed and dated written informed consent in accordance with ICH-GCP and local legislation prior to admission to the trial

6. Male trial participants without need for contraception

7. Female trial participants, only if any of the following criteria for a highly effective contraception from at least 30 days before the first administration of trial medication until 2 months after last administration of trial medication are met:

Use of combined (estrogen and progestogen containing) hormonal contraception that prevents ovulation (intravaginal or transdermal)
Bilateral tubal occlusion
A vasectomised sexual partner who received medical assessment of the surgical success (documented absence of sperm according to verbal confirmation of female participant) and provided that partner is the sole sexual partner of the trial participant
Abstention from male-female sex. This is defined as being in line with the preferred and usual lifestyle of the patient. Periodic abstinence e.g. calendar, ovulation, symptothermal, post-ovulation methods; declaration of abstinence for the duration of exposure to study drug, and withdrawal are not acceptable.

Or female subject meets any of the following criteria:

Permanent sterilisation by hysterectomy, bilateral salpingectomy and/or bilateral oophorectomy
Woman is postmenopausal, defined as no menses for 1 year without an alternative medical cause (in questionable cases a blood sample with follicle stimulating hormone (FSH) above 40 U/L and estradiol below 30 ng/L is confirmatory)

Exclusion criteria

1. Any finding in the medical examination (including BP, PR or ECG) deviating from normal and assessed as clinically relevant by the investigator

2. Measurement of systolic blood pressure outside the range of 90 to 140 mmHg, diastolic blood pressure outside the range of 50 to 90 mmHg, or pulse rate outside the range of 50 to 90 bpm and assessed as clinically relevant by the investigator

3. Any laboratory value outside the reference range that the investigator considers to be of clinical relevance

4. Any evidence of a concomitant disease

5. Gastrointestinal, hepatic, renal, respiratory, cardiovascular, metabolic, immunological or hormonal disorders

6. Cholecystectomy or other surgery of the gastrointestinal tract that could interfere with the pharmacokinetics of the trial medication (except appendectomy or simple hernia repair)

7. Diseases of the central nervous system (including but not limited to any kind of seizures or stroke), and other relevant neurological or psychiatric disorders

8. History of relevant orthostatic hypotension, fainting spells, or blackouts Further exclusion criteria apply.

Endpoints (1)

What's being measured

Protocol endpoints and posted registry outcome measures, grouped into outcome categories. Composite endpoints show their component event types. Standard codes (LOINC, SNOMED CT) are shown where available.

Other (unclassified)

1 endpoint
Primary/protocol endpoint/low confidence

Blood Oxygen Level Dependent (BOLD) signal changes following treatment with single dose of BI 1820237 alone, BI 456906 alone, and combination of BI 1820237 + BI 456906 versus placebo

Time frame:32 days plus up to 8 weeks wash-out for each sequence, up to 51 weeks

change from baseline, descriptive

Provenance

Sources

Trial identity, design, statusClinicalTrials.gov API v2
Snapshot dateJuly 1, 2026
Endpoint classificationDelfa endpoint taxonomy v2 (May 13, 2026)
Results tableno registry results posted yet

Trial facts come from public ClinicalTrials.gov records. Endpoint categories are Delfa's classification of those records, not a ClinicalTrials.gov field. All figures reflect the July 1, 2026 snapshot.