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Recruiting Phase 3 NCT07794761

NCT07794761 A Study to Learn About Safety and Effects of Once-weekly Treatment With Berobenatide in Adults With Obesity Disease in Japan (VESPER-JW)

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Clinical Trial Summary
NCT ID NCT07794761
Status Recruiting
Phase Phase 3
Sponsor Pfizer
Condition Obesity
Study Type INTERVENTIONAL
Enrollment 180 participants
Start Date 2026-10-02
Primary Completion 2029-03-14

Eligibility & Interventions

Sex All sexes
Min Age 18 Years
Max Age N/A
Study Type INTERVENTIONAL
Interventions
BerobenatidePlacebo

Eligibility Fast-Check

Enter your details for a quick preliminary check. This does not replace medical advice.

What to Expect as a Participant

You will actively receive the study intervention — which may be a drug, biologic, device, or procedure.

Phase 3 trials are large pivotal studies comparing the treatment to current standard of care or placebo. Your participation directly contributes to the evidence needed for regulatory approval.

This trial targets 180 participants in total. It began in 2026-10-02 with a primary completion date of 2029-03-14.

⚠ This information is for research awareness only. Always consult your physician before joining any clinical trial. Participation is voluntary and you may withdraw at any time.

Brief Summary

The purpose of this clinical study is to learn about safety and effects of berobenatide (PF-08653944) in adults with obesity disease, a condition where a person has too much body fat, which can harm their health and increase the risk of other medical problems. Some people in this study may also have type 2 diabetes, a condition in which the body does not use insulin properly, causing blood sugar levels to become too high. This study is seeking participants in Japan who: * Have obesity disease. * May have type 2 diabetes. * Meet the study-specific age, weight and health requirements. About 180 adults will take part in this study. Participants will be randomly assigned to receive either berobenatide or a placebo. A placebo looks like the study medicine but does not contain any active medicine. Berobenatide or placebo will be given as an injection under the skin of the abdomen (belly area). The study will compare the experiences of people receiving berobenatide with those receiving placebo to determine whether berobenatide can help people lose weight. The study will also assess the safety of berobenatide and its effects on body weight and other health measures. People will take part in this study for about 22 months. During this time, they will have about 15 study visits at the site. They will also have 2 study visits over the phone.

Eligibility Criteria

Inclusion Criteria: * Aged ≥18 years. * BMI of: ≥27.0 kg/m2 to \<35.0 kg/m2 with ≥2 obesity-related health disorders or BMI of ≥35.0 kg/m2 with ≥1 obesity-related health disorder. The participant must have at least one of either hypertension, dyslipidemia or glucose intolerance (T2D and impaired glucose tolerance etc.) as an obesity-related health disorder. Exclusion Criteria: * Have a self-reported body weight change greater than 5% within 90 days prior to Screening. * Diagnosis of type 1 diabetes or any other form of diabetes other than T2D. * History of acute or chronic pancreatitis. * Personal or family history of medullary thyroid carcinoma (MTC) or multiple endocrine neoplasia type 2 (MEN-2).

Contact & Investigator

Central Contact

Pfizer CT.gov Call Center

✉ ClinicalTrials.gov_Inquiries@pfizer.com

📞 1-800-718-1021

Principal Investigator

Pfizer CT.gov Call Center

STUDY DIRECTOR

Pfizer

Frequently Asked Questions

Who can join the NCT07794761 clinical trial?

This trial is open to participants of all sexes, aged 18 Years or older, studying Obesity. Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.

What phase is the NCT07794761 trial and what does that mean for participants?

Phase 3 trials are large-scale studies comparing the new treatment to existing standards of care or a placebo. They provide the evidence needed for regulatory approval. This trial targets 180 participants.

Is NCT07794761 currently recruiting?

Yes, NCT07794761 is actively recruiting participants. Contact the research team at ClinicalTrials.gov_Inquiries@pfizer.com for enrollment information.

Where is the NCT07794761 trial being conducted?

This trial is being conducted at Mihama-ku, Japan, Matsuyama, Japan, Matsuyama, Japan, Fukuoka, Japan and 11 additional locations.

Who is sponsoring the NCT07794761 clinical trial?

NCT07794761 is sponsored by Pfizer. The principal investigator is Pfizer CT.gov Call Center at Pfizer. The trial plans to enroll 180 participants.

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ClinicalMetric — Independent clinical trial intelligence platform. Not affiliated with NIH, ClinicalTrials.gov, the U.S. FDA, or any pharmaceutical company, hospital, or clinical research organization. Trial data is sourced from ClinicalTrials.gov for informational purposes only and does not constitute medical advice. Do not make any treatment, enrollment, or health decisions based solely on information found here — always consult a qualified healthcare professional. Full Disclaimer  ·  Last Reviewed: November 2026  ·  Data Methodology