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NCT07919678RecruitingPhase 3

A Study to Learn About Study Medicine Called Berobenatide in Adults With Knee Pain and Overweight or Obesity (VESPER-OA 1)

A PHASE 3, RANDOMIZED, DOUBLE-BLIND, PLACEBO-CONTROLLED STUDY TO ASSESS THE EFFICACY AND SAFETY OF ONCE-MONTHLY BEROBENATIDE IN ADULTS WITH KNEE OSTEOARTHRITIS AND OVERWEIGHT OR OBESITY (VESPER-OA 1)

Source: ClinicalTrials.gov · Last updated 5 Nov 2026

Brief summary (registry, in English)

The purpose of this clinical study is to learn about the safety and effects of berobenatide (PF-08653944) for the treatment of knee osteoarthritis in adults with overweight or obesity. The study will last 52 weeks and compare the effects of berobenatide compared to placebo on knee pain, physical function, and body weight. Study activities will include blood tests, knee pain assessment, physical function questionnaires and body measurements.

Status (registry)
Recruiting
Phase (registry)
Phase 3
Study type
Interventional
Enrollment
656 (estimated)
First submitted
20 Oct 2026
Start date
26 Oct 2026
Primary completion date
22 Aug 2028
Lead sponsor
Pfizer
Diseases
Obesity
NCT number
NCT07919678
EU CT number
2026-526328-34-00

What you commit to

  • Study type: Interventional · Phase 3
  • Planned participants: 656
  • From 26 Oct 2026 to the primary completion date, 22 Aug 2028
  • 40 sites in 2 countries
  • Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study design.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Prior treatment

  • Self-reported body weight increase or decrease greater than 5% within 90 days before Screening.
  • Prior target-knee replacement, planned target-knee replacement, or planned elective knee surgery during the study.
  • Prior participation in a berobenatide clinical trial with receipt of active treatment or placebo.

Other illness

  • Known clinically significant gastric-emptying abnormality, history of acute or chronic pancreatitis, or active symptomatic gallbladder disease.
  • Personal history or first-degree family history of medullary thyroid carcinoma or multiple endocrine neoplasia type 2.
  • Significant active or unstable psychiatric disorder.
  • Condition or knee disorder that could confound assessment of target-knee pain.
  • Hypersensitivity to a drug with glucagon-like peptide-1 receptor activity, including berobenatide, or any excipient.

Lab values

  • History of diabetes or Screening laboratory findings indicative of diabetes.
  • Recent use of weight-loss medication, any glucose-lowering therapy, or other protocol-prohibited treatment.

Who the study is looking for

  • Adults 18 years of age or older, or the minimum age of consent according to local regulations.
  • Body mass index of at least 27 kg/m² at Screening.
  • Currently meets American College of Rheumatology (ACR) Criteria for knee OA.
  • Pain due to knee OA.
  • Knee radiograph consistent with knee osteoarthritis and Kellgren-Lawrence Grade 2 or 3.
  • Willingness to complete the required analgesic washout.
  • History of at least 1 self-reported unsuccessful dietary effort to lose body weight.

Age in the registry: 18 years to - · Sex: All · Does not accept healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (40)

Sites in registry order. Save your city in your profile to sort them by distance.

SiteCityCountrySite status
Bluewater Clinical Research Group Inc.
Coordinator of this site? Confirm its status
SarniaCanadaNot yet recruiting
Albuquerque Clinical Trials, Inc.
Coordinator of this site? Confirm its status
AlbuquerqueUnited StatesNot yet recruiting
Charlottesville Medical Research Center, LLC
Coordinator of this site? Confirm its status
CharlottesvilleUnited StatesNot yet recruiting
Northwestern Memorial Hospital, Diagnostic Testing Center (Phlebotomy/EKG)
Coordinator of this site? Confirm its status
ChicagoUnited StatesNot yet recruiting
Great Lakes Clinical Trials LLC dba Flourish Research
Coordinator of this site? Confirm its status
ChicagoUnited StatesNot yet recruiting
Northwestern Medicine
Coordinator of this site? Confirm its status
ChicagoUnited StatesNot yet recruiting
Northwestern University Feinberg School of Medicine
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ChicagoUnited StatesNot yet recruiting
Northwestern Memorial Hospital, Investigational Drug Service
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ChicagoUnited StatesNot yet recruiting
Clinical Research of West Florida, Inc.
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ClearwaterUnited StatesNot yet recruiting
Skylight Health Research
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Colorado SpringsUnited StatesNot yet recruiting
Mercy Family Clinic
Coordinator of this site? Confirm its status
DallasUnited StatesNot yet recruiting
Universal Axon Clinical Research LLC
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DoralUnited StatesRecruiting
Altoona Center For Clinical Research
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DuncansvilleUnited StatesRecruiting
Headlands Research California, LLC
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EscondidoUnited StatesNot yet recruiting
Profound Research, LLC
Coordinator of this site? Confirm its status
Farmington HillsUnited StatesRecruiting
Cedar Health Research
Coordinator of this site? Confirm its status
Fort WorthUnited StatesNot yet recruiting
Novant Health Granite Quarry Internal Medicine (knee x-ray)
Coordinator of this site? Confirm its status
Granite QuarryUnited StatesNot yet recruiting
BRCR Global Louisiana
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GretnaUnited StatesNot yet recruiting
JCCT- Juno NW Houston
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HoustonUnited StatesNot yet recruiting
Westside Center for Clinical Research
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JacksonvilleUnited StatesNot yet recruiting
Activian Clinical Research
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KingwoodUnited StatesNot yet recruiting
Renstar Medical Research
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Lady LakeUnited StatesNot yet recruiting
Monroe Biomedical Research
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MonroeUnited StatesRecruiting
AMR Clinical
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NormanUnited StatesNot yet recruiting
Renstar Medical Research
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OcalaUnited StatesNot yet recruiting
Prospective Research Innovations Inc
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Rancho CucamongaUnited StatesNot yet recruiting
Accellacare - Salisbury
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SalisburyUnited StatesNot yet recruiting
Consano Clinical Research, LLC
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Shavano ParkUnited StatesNot yet recruiting
Revive Research Institute, Inc.
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Sterling HeightsUnited StatesRecruiting
Clinical Research Atlanta
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StockbridgeUnited StatesNot yet recruiting
Clinical Research of West Florida Inc
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TampaUnited StatesNot yet recruiting
AMR Clinical
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TempeUnited StatesNot yet recruiting
DM Clinical Research
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TomballUnited StatesNot yet recruiting
Solace Clinical Research
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TustinUnited StatesNot yet recruiting
Velocity Clinical Research, Waco
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WacoUnited StatesNot yet recruiting
Elevate Clinical Research
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WichitaUnited StatesNot yet recruiting
Accellacare
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WilmingtonUnited StatesRecruiting
Delaney Radiologist
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WilmingtonUnited StatesRecruiting
North Georgia Internal Medicine
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WoodstockUnited StatesNot yet recruiting
North Georgia Clinical Research, LLC
Coordinator of this site? Confirm its status
WoodstockUnited StatesNot yet recruiting

This page is information, not medical advice. Discuss any trial with your doctor.