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Metabolic Rate Testing for Weight Loss in Bariatric Surgery Candidates

Waitlist Available
Research Sponsored by Baylor Research Institute
Eligibility Criteria Checklist
Specific guidelines that determine who can or cannot participate in a clinical trial
Must have
All patients scheduled for a primary bariatric surgery
Be older than 18 years old
Screening 3 weeks
Treatment Varies
Follow Up 1 year
Awards & highlights

Study Summary

This trial looks at whether measuring how many calories you burn at rest can help predict how much weight you'll lose after surgery.

Who is the study for?
This trial is for adults of any age who are scheduled to have their first bariatric surgery. It aims to include a broad range of participants without an upper age limit, focusing on those interested in understanding how their body's calorie burning at rest might influence weight loss after surgery.Check my eligibility
What is being tested?
The study is testing the use of a ReeVue Indirect Calorimeter, which measures resting metabolic rate—the calories burned while the body is at rest—to see if this can predict successful weight loss following bariatric surgery.See study design
What are the potential side effects?
Since the intervention involves only measuring metabolism with a calorimeter, there are no direct side effects from this procedure. It's non-invasive and simply requires patients to breathe into the device.

Eligibility Criteria

Inclusion Criteria

You may be eligible if you check “Yes” for the criteria below
I am scheduled for my first weight loss surgery.


Screening ~ 3 weeks
Treatment ~ Varies
Follow Up ~1 year
This trial's timeline: 3 weeks for screening, Varies for treatment, and 1 year for reporting.

Treatment Details

Study Objectives

Outcome measures can provide a clearer picture of what you can expect from a treatment.
Primary outcome measures
Weight decreased
Secondary outcome measures
Change in resting metabolic rate

Trial Design

1Treatment groups
Experimental Treatment
Group I: Resting Metabolic Rate TestingExperimental Treatment1 Intervention
All subjects will have the resting metabolic rate test. The ReeVue Indirect Calorimeter from Korr Medical will be used to obtain the resting metabolic rate.

Find a Location

Who is running the clinical trial?

Baylor Research InstituteLead Sponsor
200 Previous Clinical Trials
203,176 Total Patients Enrolled
3 Trials studying Weight Loss
216 Patients Enrolled for Weight Loss

Media Library

ReeVue Indirect Calorimeter Clinical Trial Eligibility Overview. Trial Name: NCT03221543 — N/A
Weight Loss Research Study Groups: Resting Metabolic Rate Testing
Weight Loss Clinical Trial 2023: ReeVue Indirect Calorimeter Highlights & Side Effects. Trial Name: NCT03221543 — N/A
ReeVue Indirect Calorimeter 2023 Treatment Timeline for Medical Study. Trial Name: NCT03221543 — N/A

Frequently Asked Questions

These questions and answers are submitted by anonymous patients, and have not been verified by our internal team.

Are there still available slots left in this clinical trial?

"According to clinicaltrials.gov, this investigation is no longer accepting participants. The study was initially posted on July 31st 2017 and has not been updated since late 2020. However, there are currently 276 other trials that require volunteers."

Answered by AI

Who else is applying?

What state do they live in?
How old are they?
18 - 65
What site did they apply to?
Baylor Weight Loss Surgery Center
What portion of applicants met pre-screening criteria?
Did not meet criteria
Met criteria
How many prior treatments have patients received?

Why did patients apply to this trial?

I have tried to lose weight by reducing calories, walking at a fast pace to get my heart rate up, eating healthier. Nothing has worked. I take probiotics and eat yogurt for extra probiotics and more protein but nothing seems to be working.
PatientReceived no prior treatments
~6 spots leftby May 2025