Obesity in DiabetesPhase 2VESPER-2NCT06897202
A Study to Evaluate the Efficacy and Safety of Once-Weekly MET097 in Adults With Obesity or Overweight and T2DM
A Phase 2 study testing MET097 Injection in people with Obesity in Diabetes and Type 2 Diabetes Mellitus (T2DM), run by Pfizer at 29 sites in United States.
Trial summary
This study is designed to test how well once-weekly MET097 (an ultra-long-acting GLP-1 receptor agonist) works to treat adults with obesity or overweight and type 2 diabetes mellitus (T2DM) compared to placebo. MET097 or placebo will be administered to individuals via subcutaneous injection once weekly for 28 weeks. Read more about this study
- Who is it for?
- Ages 18 to 75 years
- Conditions the study is for
- Obesity in Diabetes, Type 2 Diabetes Mellitus (T2DM)
- What is being tested?
- MET097 Injection
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 133 participants
- Where
- 29 sitesUnited States
- Study dates
- 14 Mar 2025to 18 Mar 2026
- Phase
- Phase 2
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 75 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- BMI ≥27.0 kg/m2 to ≤50.0 kg/m2 at screening
- Type 2 diabetes mellitus (*T2DM) for at least 3 months before screening
- Glycated hemoglobin (HbA1c) value between ≥7.0% (53.0 mmol/mol) and ≤10.5% (91.3 mmol/mol) at Screening and treated with stable therapy for at least 30 days prior to Screening/Visit 1 (diet and exercise alone or in combination with metformin monotherapy and/or SGLT-2)
- Stable body weight (increase or decrease ≤5 kg) within 3 months prior to screening
Who cannot join
- Female who is lactating or who is pregnant
- Estimated glomerular filtration rate (eGFR) <60 mL/min/1.73 m2
- Fasting triglycerides ≥ 5.6 mmol/L (≥500 mg/dL)
- Poorly controlled hypertension
- History of stroke
- Significant cardiovascular disease including but not limited to unstable angina or valvular heart disease or has a history of myocardial infarction, coronary artery bypass graft, percutaneous coronary artery re-vascularization, or congestive heart failure
Show all 13Show fewer
- Diagnosis of Type 1 diabetes (history of ketoacidosis, hyperosmolar state/coma, or any other types of diabetes except T2DM)
- History of acute or chronic pancreatitis
- Family or personal history of medullary thyroid carcinoma (MTC) or multiple endocrine neoplasia syndrome type 2 (MEN-2)
- History of significant active or unstable major depressive disorder (MDD) or other severe psychiatric disorder within the last 2 years
- Relevant surgical history including all bariatric or weight loss surgeries
- SGLT2 inhibitors and/or metformin
- Had 1 or more episodes of hypoglycemia
Trial locations and contacts
29 sites in 1 country.
29 sites in 1 country
United States29 sites
Advocare Berlin Medical Associates
Berlin, New Jersey, 08009
KUR Research
Bessemer, Alabama, 35022
Synergy Healthcare
Bradenton, Florida, 34209
Onsite Clinical Solutions, LLC (Satellite site)
Charlotte, North Carolina, 28277
Onsite Clinical Solutions, LLC
Charlotte, North Carolina, 28277
ProSciento, Inc.
Chula Vista, California, 91911
Eagle Eye Care
Columbia, Maryland, 21045
KUR Research, LLC
Columbia, Maryland, 21045
CenExel iResearch, LLC
Decatur, Georgia, 30030
EmVenio Research Centre at PRIME Healthcare
Farmers Branch, Texas, 75234
CBH Health, LLC.
Gaithersburg, Maryland, 20877
Emvenio Research
Garden City, Michigan, 48135
Michael Roberts Opthamologist (Eye Exam)
Glendale, California, 91204
Miami Eye Institute
Hollywood, Florida, 33024
Research Centers of America
Hollywood, Florida, 33024
EmVenio Research Centre at PRIME Healthcare
Kansas City, Kansas, 66112
Eye Treatment Center
Long Beach, California, 90807
Collaborative Neuroscience Research, LLC
Los Alamitos, California, 90720
Velocity Clinical Research, Los Angeles
Los Angeles, California, 90017
Hassman Research Institute
Marlton, New Jersey, 08053
Koch Family Medicine Clinical Research
Morton, Illinois, 61550
Bioluminux Clinical Research
Naperville, Illinois, 60540
Velocity Clinical Research
Omaha, Nebraska, 68134
Research Your Health
Plano, Texas, 75093
EmVenio Research Centre at PRIME Healthcare
Riverdale, Georgia, 30274
Clinical Innovations, Inc dba CITrials
Riverside, California, 92506
CenExel iResearch, LLC
Savannah, Georgia, 31405
Revival Research Institute, LLC
Sherman, Texas, 75092
ForCare Clinical Research
Tampa, Florida, 33613
About this study
Official title: A Phase 2b, Multi-Center, Randomized, Double-Blind, Placebo-Controlled Study to Evaluate the Efficacy and Safety of Once-Weekly MET097 in Adults With Obesity or Overweight, and Type 2 Diabetes Mellitus (VESPER-2)
This study is designed to test how well once-weekly MET097 (an ultra-long-acting GLP-1 receptor agonist) works to treat adults with obesity or overweight and type 2 diabetes mellitus (T2DM) compared to placebo. MET097 or placebo will be administered to individuals via subcutaneous injection once weekly for 28 weeks. If an individual is randomly assigned to MET097 they will receive one of four different dose regimens.
Read the detailed description
This is a 28-week, multi-center, randomized, double-blind, placebo-controlled, parallel-group study to investigate the efficacy, safety, and tolerability of four different once-weekly MET097 dosing regimens vs. placebo for body weight loss in adults (18-75 years of age) with obesity or overweight (body mass index [BMI] ≥27 to ≤50 kg/m2) and T2DM . After completing 28 weeks of study treatment, all participants will be followed for approximately 11 weeks after administration of the last dose of study treatment.
- Being tested
- MET097 Injection, Placebo
- Keywords
- GLP-1, Metsera, T2DM, Obesity, Overweight, Weight Loss
- Medical subject headings
- Diabetes Mellitus, Type 2, Obesity, Overweight, Weight Loss
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
MET097 InjectionDrug
MET097 is an ultra-long-acting, fully-biased analog of human GLP-1.
PlaceboDrug
Sterile 0.9% (w/v) saline will be used as placebo treatment during the study.
| Study group | Role | What they receive |
|---|---|---|
| MET097 Active with titration | Experimental | Not described Receives: Drug: MET097 Injection |
| Placebo | Placebo comparator | Not described Receives: Drug: Placebo |
| MET097 Active without titration | Experimental | Not described Receives: Drug: MET097 Injection |
What is being measured
The primary outcome is the main question the study is designed to answer.
Percent change from baseline in body weight at Week 28 (Day 197)
Measured: Baseline (Week 0) through Week 28 (Day 197)
Secondary outcomes (20)
Weight reduction (weight loss) from baseline that is ≥ 5%
Measured: Baseline (Week 0) through Week 28 (Day 197)
Weight reduction (weight loss) from baseline that is ≥ 10%
Measured: Baseline (Week 0) through Week 28 (Day 197)
Weight reduction (weight loss) from baseline that is ≥ 15%
Measured: Baseline (Week 0) through Week 28 (Day 197)
Change in glycated hemoglobin A1c (HbA1c)
Measured: Baseline (Week 0) through Week 28 (Day 197)
Change from baseline in fasting plasma glucose (FPG)
Measured: Baseline (Week 0) through Week 28 (Day 197)
Change from baseline in fasting serum insulin
Measured: Baseline (Week 0) through Week 28 (Day 197)
Change from baseline in C-peptide
Measured: Baseline (Week 0) through Week 28 (Day 197)
Occurrence of HbA1c <7.0% (53.0 mmol/mol)
Measured: Baseline (Week 0) through Week 28 (Day 197)
Occurrence of HbA1c ≤6.5% (47.5 mmol/mol)
Measured: Baseline (Week 0) through Week 28 (Day 197)
Occurrence of HbA1c <5.7% (38.8 mmol/mol)
Measured: Baseline (Week 0) through Week 28 (Day 197)
Occurrence of treatment-emergent adverse events (TEAEs)
Treatment emergent adverse events include adverse events of clinical interest as well as abnormal clinical significant physical exams, laboratory findings, and 12-lead ECG measurements that meet the definition for an AE.
Measured: Baseline (Week 0) through Week 39 (Day 274)
Occurrence of hypoglycemia according to American Diabetes Association classifications [ADA 2024]
Measured: Baseline (Week 0) through Week 39 (Day 274)
Occurrence of anti-drug antibodies
Measured: Baseline (Week 0) through Week 39 (Day 274)
Change from baseline in serum albumin
Measured: Baseline (Week 0) through Week 39 (Day 274)
Change from baseline in transthyretin [pre-albumin]
Measured: Baseline (Week 0) through Week 39 (Day 274)
Change from baseline in high-sensitivity C-reactive Protein [hsCRP]
Measured: Baseline (Week 0) through Week 39 (Day 274)
Characterize the minimum observed concentration (Cmin)
Measured: Baseline (Week 0) through Week 39 (Day 274)
Characterize the maximum observed concentration (Cmax)
Measured: Baseline (Week 0) through Week 39 (Day 274)
Characterize the area under the concentration versus time curve (AUC)
Measured: Baseline (Week 0) through Week 39 (Day 274)
Characterize the time to maximum concentration (Tmax)
Measured: Baseline (Week 0) through Week 39 (Day 274)
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted26 Mar 2025
- Study start14 Mar 2025
- Primary completion29 Dec 2025
- Study completion18 Mar 2026
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Obesity in DiabetesStudies of the same condition, open and under way.
- More trials run by PfizerThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 2
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind
- Who is masked
- Participant, Investigator
- Enrolment
- 133 participants (actual)
Sponsor and investigators
- Lead sponsor
- Pfizer
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- Pfizer CT.gov Call Center, Study director, Pfizer
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06897202
- Sponsor's protocol ID
- VESPER-2 (MET097-24-202)
- Other IDs
- C6491005
- Acronym
- VESPER-2
- Status last verified
- Jun 2026
- First submitted
- 13 Mar 2025
- Last updated
- 12 Jun 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
- Individual data sharing
- Yes: Pfizer will provide access to individual de-identified participant data and related study documents (e.g. protocol, Statistical Analysis Plan (SAP), Clinical Study Report (CSR)) upon request from qualified researchers, and subject to certain criteria, conditions, and exceptions. Further details on Pfizer's data sharing criteria and process for requesting access can be found at: https://www.pfizer.com/science/clinical\_trials/trial\_data\_and\_results/data\_requests.
Study at a glance
From the registry record, last updated by the sponsor on 12 Jun 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Phase 2b, Multi-Center, Randomized, Double-Blind, Placebo-Controlled Study to Evaluate the Efficacy and Safety of Once-Weekly MET097 in Adults With Obesity or Overweight, and Type 2 Diabetes Mellitus (VESPER-2)
- ClinicalTrials.gov ID
- NCT06897202
- Acronym / sponsor ID
- VESPER-2 / VESPER-2 (MET097-24-202)
- Keywords
- GLP-1, Metsera, T2DM, Obesity, Overweight, Weight Loss
- Phase
- Phase 2
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 133 participants (actual)
- Lead sponsor
- PfizerIndustry (pharma, biotech, devices)
- Study start
- 14 Mar 2025 (actual)
- Primary completion
- 29 Dec 2025 (actual)
- Study completion
- 18 Mar 2026 (actual)
- First posted
- 26 Mar 2025 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This study is designed to test how well once-weekly MET097 (an ultra-long-acting GLP-1 receptor agonist) works to treat adults with obesity or overweight and type 2 diabetes mellitus (T2DM) compared to placebo. MET097 or placebo will be administered to individuals via subcutaneous injection once weekly for 28 weeks. If an individual is randomly assigned to MET097 they will receive one of four different dose regimens.
Detailed description
This is a 28-week, multi-center, randomized, double-blind, placebo-controlled, parallel-group study to investigate the efficacy, safety, and tolerability of four different once-weekly MET097 dosing regimens vs. placebo for body weight loss in adults (18-75 years of age) with obesity or overweight (body mass index [BMI] ≥27 to ≤50 kg/m2) and T2DM . After completing 28 weeks of study treatment, all participants will be followed for approximately 11 weeks after administration of the last dose of study treatment.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind (participant, investigator)
- Number of arms
- 3
| Arm | Type | Receives |
|---|---|---|
| MET097 Active with titration | Experimental | Drug: MET097 Injection |
| Placebo | Placebo comparator | Drug: Placebo |
| MET097 Active without titration | Experimental | Drug: MET097 Injection |
Who may qualify
- Ages
- 18 to 75 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (4 listed)
- BMI ≥27.0 kg/m2 to ≤50.0 kg/m2 at screening
- Type 2 diabetes mellitus (*T2DM) for at least 3 months before screening
- Glycated hemoglobin (HbA1c) value between ≥7.0% (53.0 mmol/mol) and ≤10.5% (91.3 mmol/mol) at Screening and treated with stable therapy for at least 30 days prior to Screening/Visit 1 (diet and exercise alone or in combination with metformin monotherapy and/or SGLT-2)
- Stable body weight (increase or decrease ≤5 kg) within 3 months prior to screening
Key exclusion criteria (13 listed)
- Female who is lactating or who is pregnant
- Estimated glomerular filtration rate (eGFR) <60 mL/min/1.73 m2
- Fasting triglycerides ≥ 5.6 mmol/L (≥500 mg/dL)
- Poorly controlled hypertension
- History of stroke
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| MET097 InjectionMET097 is an ultra-long-acting, fully-biased analog of human GLP-1. | Drug | MET097 Active with titration, MET097 Active without titration |
| PlaceboSterile 0.9% (w/v) saline will be used as placebo treatment during the study. | Drug | Placebo |
Primary outcome
Percent change from baseline in body weight at Week 28 (Day 197)
Time frame: Baseline (Week 0) through Week 28 (Day 197)
20 secondary outcomes
Weight reduction (weight loss) from baseline that is ≥ 5%
Time frame: Baseline (Week 0) through Week 28 (Day 197)
Weight reduction (weight loss) from baseline that is ≥ 10%
Time frame: Baseline (Week 0) through Week 28 (Day 197)
Weight reduction (weight loss) from baseline that is ≥ 15%
Time frame: Baseline (Week 0) through Week 28 (Day 197)
Change in glycated hemoglobin A1c (HbA1c)
Time frame: Baseline (Week 0) through Week 28 (Day 197)
Change from baseline in fasting plasma glucose (FPG)
Time frame: Baseline (Week 0) through Week 28 (Day 197)
Change from baseline in fasting serum insulin
Time frame: Baseline (Week 0) through Week 28 (Day 197)
Change from baseline in C-peptide
Time frame: Baseline (Week 0) through Week 28 (Day 197)
Occurrence of HbA1c <7.0% (53.0 mmol/mol)
Time frame: Baseline (Week 0) through Week 28 (Day 197)
Occurrence of HbA1c ≤6.5% (47.5 mmol/mol)
Time frame: Baseline (Week 0) through Week 28 (Day 197)
Occurrence of HbA1c <5.7% (38.8 mmol/mol)
Time frame: Baseline (Week 0) through Week 28 (Day 197)
Occurrence of treatment-emergent adverse events (TEAEs)
Time frame: Baseline (Week 0) through Week 39 (Day 274)
Occurrence of hypoglycemia according to American Diabetes Association classifications [ADA 2024]
Time frame: Baseline (Week 0) through Week 39 (Day 274)
Occurrence of anti-drug antibodies
Time frame: Baseline (Week 0) through Week 39 (Day 274)
Change from baseline in serum albumin
Time frame: Baseline (Week 0) through Week 39 (Day 274)
Change from baseline in transthyretin [pre-albumin]
Time frame: Baseline (Week 0) through Week 39 (Day 274)
Change from baseline in high-sensitivity C-reactive Protein [hsCRP]
Time frame: Baseline (Week 0) through Week 39 (Day 274)
Characterize the minimum observed concentration (Cmin)
Time frame: Baseline (Week 0) through Week 39 (Day 274)
Characterize the maximum observed concentration (Cmax)
Time frame: Baseline (Week 0) through Week 39 (Day 274)
Characterize the area under the concentration versus time curve (AUC)
Time frame: Baseline (Week 0) through Week 39 (Day 274)
Characterize the time to maximum concentration (Tmax)
Time frame: Baseline (Week 0) through Week 39 (Day 274)
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 12 Jun 2026.
- To obtain contact information for a study center near you, click here.Link provided by the sponsor.
- Individual participant dataSharing planned: Yes. Pfizer will provide access to individual de-identified participant data and related study documents (e.g. protocol, Statistical Analysis Plan (SAP), Clinical Study Report (CSR)) upon request from qualified researchers, and subject to certain criteria, conditions, and exceptions. Further details on Pfizer's data sharing criteria and process for requesting access can be found at: https://www.pfizer.com/science/clinical_trials/trial_data_and_results/data_requests.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Pfizer CT.gov Call Center study director
Pfizer
29 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 2 study testing MET097 Injection in people with Obesity in Diabetes and Type 2 Diabetes Mellitus (T2DM), run by Pfizer at 29 sites in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 4 inclusion and 13 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 12 Jun 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 29 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Percent change from baseline in body weight at Week 28 (Day 197) (time frame: Baseline (Week 0) through Week 28 (Day 197)). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 12 Jun 2026.