Stay up to date on all things weight loss surgery. Sign up and we’ll send you the latest news, resources, scientific breakthroughs, events, tips, and much more.

Comparative Effectiveness of Bariatric Surgery With PROMs

October 23, 2019


This is a long-term, nationwide study aiming to determine the quality, safety, and comparative effectiveness of various metabolic and bariatric procedures. Participants will be asked to complete a selection of PROMS (patient-reported outcome measures, i.e. in the form of a questionnaire) before and after their surgery, and that data will be used to determine the outcome of the study.  


Study Information

This is a non-randomized clinical trial involving approximately 200000 participants. The study began on March 2016 and is estimated to conclude on October 31st 2020. 


Inclusion Criteria

All preoperative metabolic and bariatric surgery patients with surgery scheduled at a participating center.

Postoperative metabolic and bariatric surgery patients who have had their surgery within the preceding year at a participating center.


Exclusion Criteria 

Metabolic and bariatric surgery patients without an already scheduled surgery date at a participating center.

Postoperative metabolic and bariatric surgery patients who are more than 1 year post op.



This study is taking place at the Massachusetts General Hospital, Boston, Massachusetts, United States, 02114. To participate, please contact  Meridith Greene, PhD on 617-643-8761 or at


Sponsors / Collaborators

This study is sponsored by Massachusetts General Hospital, with Matthew Hutter, Medical Director of the Codman Center, Massachusetts General Hospital, as the Responsible Party.

Clinical Trials

View All Clinical Trials

Alcohol and Bariatric Surgery

This study is exploring the relationship between alcohol and three forms of bariatric surgery, Roux-en-Y gastric…

Absorption of Transdermal Vitamins in Post Bariatric Surgery Patients

This study is exploring the absorption of vitamins in patients using a transdermal patch after bariatric surgery.…

Probiotic Supplementation on Weight Loss

This study is looking to assess the role of a probiotic, which is a dietary…

Aromatherapy in Management of Postoperative Nausea

This study is looking to determine the effectiveness of using peppermint oil aromatherapy vs. traditional…

Effects of Weight Loss Surgery on Bone Health in Adolescents

The purpose of this study is to examine the effects of weight-loss surgery (specifically Roux-en-Y gastric bypass…

Effects of Wolffia Globosa in Patients Undergoing Bariatric Surgery

This study is assessing the effects of using Wolffia Globosa (Mankai), a…

Resting Metabolic Rate Testing in Bariatric Surgery Patients

This study is evaluating if measuring the patient’s resting metabolic rate (the number of calories the body burns…

Make a comment and share this article on your profile.

Write a comment for your publication

Successfully Shared!

View on my Profile

Send this to a friend