RecruitingPhase 2

A Study of Brenipatide in Adult Participants With Schizophrenia

United States, Argentina, Brazil450 participantsStarted 2026-02-10

Plain-language summary

The purpose of this study is to assess the efficacy and safety of brenipatide when administered with standard of care (SoC) compared to placebo plus SoC for treatment of schizophrenia. The trial is divided into three periods as follows: Screening period will last approximately 1 month, treatment period will last a maximum of 12 months, and the follow up period will last approximately 2 months. The length of time of your study participation may last up to approximately 15 months.

Who can participate

Age range

18 Years – 55 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * Meet the diagnostic criteria of schizophrenia * Are on a stable standard of care medication regimen for schizophrenia * If the duration of illness is \>6 years, participant has experienced at least one relapse of schizophrenia in last 3 years * Have at least 1 reliable study partner (for example, a family member, social worker, caseworker, residential facility staff, or nurse) * Are reliable and willing to make themselves available for the duration of the study and attend required study visits, and are willing and able to follow study procedures as required, such as * self-inject study intervention store and use the provided study intervention as directed, * maintain electronic or paper study diaries, as applicable, and * complete the required questionnaires Exclusion Criteria: * Have lifetime history of bipolar disorder, borderline personality disorder, or any eating disorder * Evidence of moderate or severe substance or alcohol use disorder within 180 days of screening * Have type 1 diabetes, or history of ketoacidosis or hyperosmolar state or coma * Are actively suicidal or deemed to be a significant risk for suicide * Are currently enrolled in any other clinical study involving an investigational product or any other type of medical research judged not to be scientifically or medically compatible with this study

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Percent Change from Baseline in Body Weight in Participants with a Baseline Body Mass Index ≥25.0 Kilograms per Meter Squared (kg/m²)

Timeframe: Baseline, Week 52

Trial details

NCT IDNCT07410507

SponsorEli Lilly and Company

Sponsor typeINDUSTRY

Study typeINTERVENTIONAL

Primary completion2027-11

Contact for this trial

Trial questions or participation questions: 1-877-CTLILLY (1-877-285-4559) or

1-317-615-4559 LillyTrials@Lilly.com

View on ClinicalTrials.gov More Schizophrenia trials