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A Study of PF-08653945 and PF-08653944 in Adults With Overweight or Obesity (SOLIS-1)
Sponsor: Pfizer
Summary
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).
Official title: A PHASE 2B, RANDOMIZED, PLACEBO-CONTROLLED, DOUBLE-BLIND, DOSE RANGING, DOSE-FINDING, UMBRELLA STUDY TO EVALUATE EFFICACY AND SAFETY OF PF-08653945 AND PF-08653944, ALONE OR IN COMBINATION, IN ADULTS WITH OVERWEIGHT OR OBESITY (SOLIS-1)
Key Details
Gender
All
Age Range
18 Years - Any
Study Type
INTERVENTIONAL
Enrollment
872
Start Date
2026-05-11
Completion Date
2028-01-05
Last Updated
2026-06-10
Healthy Volunteers
No
Conditions
Interventions
PF-08653945
Subcutaneous Injection
PF-08653944
Subcutaneous Injection
Placebo
Subcutaneous Injection
Locations (48)
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
Ark Clinical Research
Fountain Valley, California, United States
Paragon Rx Clinical
Garden Grove, 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
Diablo Clinical Research, LLC dba Flourish Research
Walnut Creek, California, United States
AGA Clinical Trials
Hialeah, Florida, United States
Westside Center for Clinical Research
Jacksonville, Florida, United States
New Horizon Research Center
Miami, Florida, United States
Charter Research
Orlando, Florida, United States
Atlanta Diabetes Associates
Atlanta, Georgia, United States
Clinical Research Atlanta
Stockbridge, Georgia, United States
Koch Family Medicine Clinical Research/Elite Research Network
Morton, Illinois, United States
Bioluminux Clinical Research Illinois
Naperville, Illinois, United States
Johnson County Clinical Trials
Lenexa, Kansas, United States
DelRicht Research
Mandeville, Louisiana, United States
DelRicht Research
Prairieville, Louisiana, United States
Patient First Clinical Trials (PFCTRIALS)
Lutherville, Maryland, United States
DelRicht Research
Springfield, Missouri, United States
Mercury Street Medical Group, PLLC
Butte, Montana, United States
Alliance Clinical Research Las Vegas (Excel Clinical Research)
Las Vegas, Nevada, United States
AB Clinical Trials
Las Vegas, Nevada, United States
Bioluminux Clinical Research
Hamilton, New Jersey, United States
DelRicht Research
Charlotte, North Carolina, United States
Monroe Biomedical Research
Monroe, North Carolina, United States
Piedmont Healthcare
Statesville, North Carolina, United States
Tekton Research, LLC.
Edmond, Oklahoma, United States
Preferred Primary Care Physicians
Pittsburgh, Pennsylvania, United States
Preferred Primary Care Physicians
Uniontown, Pennsylvania, United States
TMA Headlands LLC (d/b/a Trial Management Associates)
Myrtle Beach, South Carolina, United States
DelRicht Research
Hendersonville, Tennessee, United States
Cedar Health Research - Euless
Euless, Texas, United States
JCCT-JUNO NW Houston
Houston, Texas, United States
Activian Clinical Research
Kingwood, Texas, United States
3A Research
Plano, Texas, United States
DelRicht Research @ Zomnir Family Medicine
Prosper, Texas, United States
Worldwide Clinical Trials
San Antonio, Texas, United States
Tekton Research, LLC.
San Antonio, Texas, United States
DM Clinical Research
Tomball, Texas, United States
Alpine Medical Group
Salt Lake City, Utah, United States
Wasatch Clinical Research, LLC
Salt Lake City, Utah, United States
Manassas Clinical Research Center
Manassas, Virginia, United States
DelRicht Research
Vienna, Virginia, United States