NCT01929850.

Trial name or title	Not reported
Methods	RCT, cross‐over design
Participants	Female; of a medically underserved, rural, poor or under‐represented minority (based on specified criteria); history of obesity at least 2.5 years; BMI > 40 and < 55, or BMI > 35 and <55 with one or more significant comorbidities (defined as diabetes, pulmonary disease, cardiac disease, or hypertension).
Interventions	Laparoscopic sleeve gastrectomy Intensive medically supervised nutritional and exercise therapy ('Weight Watchers 360')
Outcomes	Proposed assessment at 12 months: BMI (primary outcome). Quality of life (instrument(s) not reported).
Starting date	October 2013; estimated completion date October 2018
Contact information	John P Cello, MD, University of California, San Francisco / San Francisco General Hospital, California, United States
Study identifier	NCT01929850
Official title	Bariatric Surgery Plus Weight Watchers vs. Weight Watchers in Underserved Minorities: Randomized Controlled Cross‐over Trial
Stated purpose of study	Not explicitly stated
Notes	Estimated enrolment 100

BMI: body mass index
 RCT: randomised controlled trial
 SF‐36: Short form 36