A Study of PF-08653945 and PF-08653944 in Adults With Overweight or Obesity (SOLIS-1)
Recruiting now Phase 2 NCT07575932
Run by Pfizer · for 18 and older · All sexes
What this study is about
This study is being done to learn about the safety and effects of the study drugs, PF-08653945 and PF-08653944, when given alone or together for weight loss, compared to a placebo (a dummy drug that has no active ingredient in it).
Who can join (things the study team will check)
✅ You may be able to join if…
- adults aged 18 years or older with
- obesity (BMI of 30.0 kg/m2 to 50.0 kg/m2) or with
- overweight (BMI of 27.0 kg/m2 to <30.0 kg/m2) who also have at least 1 prespecified weight-related comorbidity (hypertension, dyslipidemia, cardiovascular disease, or obstructive sleep apnea), at the screening visit.
Where this trial is running
- Arizona Clinical Trials-Chandler, Chandler, Arizona, United States
- Clinical Research Institute of Arizona, Sun City West, Arizona, United States
- Arizona Clinical Trials (ACT) - Tucson, Tucson, Arizona, United States
- San Fernando Valley Health Institute, Canoga Park, California, United States
- Ark Clinical Research, Fountain Valley, California, United States
- Paragon Rx Clinical, Garden Grove, California, United States
- Torrance Clinical Research Institute, Inc., Lomita, California, United States
- Ark Clinical Research, Long Beach, California, United States
- Collaborative Neuroscience Research, LLC, Los Alamitos, California, United States
- Paradigm Clinical Research-Modesto, Modesto, California, United States
- Paradigm Clinical Research Centers, LLC, San Diego, California, United States
- University Clinical Investigators, Incorporated, Tustin, California, United States
+ 53 more sites.
Who to contact
Pfizer CT.gov Call Center · 1-800-718-1021 · ClinicalTrials.gov_Inquiries@pfizer.com
It's completely normal to call and ask questions before deciding anything. Mention the study ID: NCT07575932.
Verify everything on the official ClinicalTrials.gov record. Page updated July 2026.
Beacon is an information tool, not medical advice. Whether a trial is right for you is a decision for you, your doctor, and the study team. Trial details come from the official registry, ClinicalTrials.gov, and may change — always confirm with the study team. Beacon collects no data about you: this page has no cookies, no accounts, and no tracking.