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SMART Use of Medication for the Treatment of Adolescent Severe Obesity
Sponsor: University of Minnesota
Summary
This study will examine the timing and sequence of using adjunct obesity pharmacotherapy for adolescents with severe obesity who do not respond to lifestyle modification therapy alone.
Key Details
Gender
All
Age Range
12 Years - 17 Years
Study Type
INTERVENTIONAL
Enrollment
150
Start Date
2019-11-21
Completion Date
2025-03-11
Last Updated
2026-05-05
Healthy Volunteers
No
Conditions
Interventions
Lifestyle Modification Therapy (LSMT)
LSMT will consist of both in-person and by telephone sessions delivered throughout the 48-week intervention phase. Each session will last 30-60 minutes. A trained study coordinator (a registered dietician or someone trained by our registered dietician) will deliver therapy which consists of counseling using education, goal setting and barrier reduction. Participants will be randomized to receive LSMT for 12 or 24 weeks before a re-assessment of their BMI.
Phentermine Pill
Phentermine will be started only if a participant does not lose 5% of BMI after 12 or 24 weeks of LSMT. Subjects will take 15 mg of phentermine every morning for 12 weeks at which time there will be an assessment of weight loss. Subjects who achieve 5% or more BMI reduction after 12 weeks of phentermine will continue 15 mg every morning for the remainder of the study (through week 48) along with their LSMT.
Topiramate Pill
Participants who do no not achieve at least 5% BMI reduction after 12 weeks of phentermine+LSMT will be re-randomized 1:1 to either topiramate+phentermine+LSMT or topiramate+placebo+LSMT. Topiramate dosing will begin at 50 mg every morning for the first 7 days, and then increase to 100 mg every morning through week 48. At the end of week 48 the taper off will be 50 mg every morning for 7 days and then discontinue.
Placebo
Participants who do no not achieve at least 5% BMI reduction after 12 weeks of phentermine+LSMT will be re-randomized 1:1 to either topiramate+phentermine+LSMT or topiramate+placebo+LSMT. Participants will take a placebo pill every morning.
Locations (1)
University of Minnesota
Minneapolis, Minnesota, United States