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Lorcaserin plus lifestyle modification for weight loss maintenance: Rationale and design for a randomized controlled trial.

AbstractBACKGROUND/AIMS:
Few studies have examined the efficacy of recently approved medications for chronic weight management in facilitating the maintenance of lost weight. This paper provides an overview of the design and rationale for a trial investigating whether lorcaserin, when combined with behavioral weight loss maintenance sessions (WLM), will facilitate the maintenance of losses of ≥5% of initial weight.
METHODS:
In this two-phase trial, participants with obesity will enroll in a 14-week run-in diet program consisting of weekly group lifestyle modification sessions and a 1000-1200kcal/d meal replacement diet. Participants who complete this weight induction phase and lose at least 5% of initial weight will then be randomized to 52weeks of WLM plus lorcaserin or WLM plus placebo. We hypothesize that at 52weeks post randomization, participants assigned to WLM plus lorcaserin will achieve significantly better maintenance of the prior 5% weight loss.
RESULTS:
We will recruit 182 adults with obesity to participate in the diet run-in, 136 of whom (75%) are expected to become eligible for the randomized controlled trial. Co-primary outcomes include the percentage of participants who maintain a loss of at least 5% of initial weight at week 52 and change in weight (kg) from randomization to week 52.
CONCLUSIONS:
This two-phase design will allow us to determine the potential efficacy of chronic weight management using lorcaserin for maintaining initial losses of at least 5% body weight, induced by the use of a structured meal-replacement diet. This combined approach holds promise of achieving larger long-term weight losses.
CLINICAL TRIAL REGISTRATION:
NCT02388568 on ClinicalTrials.gov.
AuthorsJena Shaw Tronieri, Nasreen Alfaris, Ariana M Chao, Rebecca L Pearl, Naji Alamuddin, Zayna M Bakizada, Robert I Berkowitz, Thomas A Wadden
JournalContemporary clinical trials (Contemp Clin Trials) Vol. 59 Pg. 105-112 (08 2017) ISSN: 1559-2030 [Electronic] United States
PMID28600158 (Publication Type: Journal Article, Randomized Controlled Trial)
CopyrightCopyright © 2017 Elsevier Inc. All rights reserved.
Chemical References
  • Benzazepines
  • lorcaserin
Topics
  • Adult
  • Benzazepines (administration & dosage)
  • Body Mass Index
  • Caloric Restriction (methods)
  • Combined Modality Therapy (methods)
  • Diet Therapy (methods, psychology)
  • Female
  • Healthy Lifestyle (physiology)
  • Humans
  • Male
  • Middle Aged
  • Obesity (diagnosis, psychology, therapy)
  • Outcome Assessment, Health Care
  • Research Design
  • Weight Loss

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