Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Sep 30, 2026, 5:43 PM EDT

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Showing 1–7 of 7 matching trials from the live ClinicalTrials.gov search.
Conditions
Type 2 Diabetes Mellitus
Interventions
VI-0521, Placebo
Drug
Lead sponsor
VIVUS LLC
Industry
Eligibility
18 Years to 65 Years
Enrollment
210 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
9
States / cities
Birmingham, Alabama • Los Angeles, California • San Francisco, California + 6 more
Conditions
Hypothalamic Obesity, Hypothalamic Tumor, Craniopharyngioma
Interventions
Phentermine / Topiramate Extended Release Oral Capsule [Qsymia], Placebo
Drug · Other
Lead sponsor
Seattle Children's Hospital
Other
Eligibility
6 Years to 28 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
2
States / cities
Philadelphia, Pennsylvania • Seattle, Washington
Conditions
Obesity
Interventions
VI-0521, Placebo matched phentermine/topiramate
Drug
Lead sponsor
VIVUS LLC
Industry
Eligibility
18 Years to 70 Years
Enrollment
1,267 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
5
States / cities
San Diego, California • Ridgefield, Connecticut • Durham, North Carolina + 2 more
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Peripheral Pharmacodynamics of Phentermine-Topiramate in Obese Patients

NCT01834404
Conditions
Obesity
Interventions
Phentermine-Topiramate ER, Placebo
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 70 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Rochester, Minnesota
Active, not recruiting Early Phase 1 Interventional Results available

Phentermine/Topiramate in Adolescents With Type 2 Diabetes and Obesity

NCT04881799
Conditions
Pediatric Obesity
Interventions
Phentermine/Topiramate (Qsymia), Placebo
Drug
Lead sponsor
University of Minnesota
Other
Eligibility
12 Years to 20 Years
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
Minneapolis, Minnesota
Conditions
PTSD, Alcohol Abuse, Alcoholism
Interventions
Topiramate, Placebo administration
Drug · Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2013
U.S. locations
1
States / cities
San Francisco, California
Conditions
Colitis, Ulcerative, Obesity
Interventions
Phentermine-Topiramate, Placebo
Drug
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years to 80 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
1
States / cities
La Jolla, California