Bone and Muscle Health Following Sleeve Gastrectomy in Men, Premenopausal and Postmenopausal Women (NCT06547515) | Clinical Trial Compass
RecruitingNot Applicable
Bone and Muscle Health Following Sleeve Gastrectomy in Men, Premenopausal and Postmenopausal Women
Canada156 participantsStarted 2022-09-14
Plain-language summary
Background: Bariatric surgery is gaining in popularity. While it's health benefits are undisputed, the older malabsorptive bariatric procedures (Roux-in-Y gastric bypass - RYGB and biliopancreatic diversion - BPD) are associated with an increased risk of fractures and falls as early as 3-5 years after surgery. Sleeve gastrectomy - SG is now the most performed bariatric procedure. Although SG does not cause malabsorption, it is predicted to result in bone and muscle loss via weight loss and weight loss-independent mechanisms. Primary aim: to compare the changes in spine volumetric bone mineral density (vBMD) by quantitative computed tomography (QCT) and muscle mass at mid-femur by computed tomography (CT) at 3 years in the 3 groups of: 1) men; 2) premenopausal women; 3) postmenopausal women after SG versus their respective non-surgical peers who did not undergo SG in the 3-year period following recruitment. Secondary aims: to compare the changes in vBMD by QCT at skeletal sites other than the spine and in areal bone mineral density (aBMD) by dual-energy X-ray absorptiometry (DXA), whole-body muscle mass by DXA, muscle quality by CT at mid-femur and muscle strength as well as in selected physical performance and capacity tests shown to predict falls and fractures between 0-1 and 1-3 years after SG in the same 3 groups after SG vs. in the respective non-surgical groups.
Who can participate
Age range
18 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion Criteria:
* Men and women aged \>18 years;
* Awaiting SG for the bariatric group or meeting the criteria for SG but not undergoing surgery for the non-surgical group.
* Menopause: defined as the absence of menses for a year and a serum follicular-stimulating hormone (FSH) \>40 UI/L.
* Women taking oral contraceptive pills or hormone replacement therapy
* Patients with type 2 diabetes.
Exclusion Criteria:
* Type 1 diabetes;
* Disease (e.g., uncontrolled thyroid disease, Malabsorptive or overt inflammatory disorder)
* Metabolic bone disease other than osteoporosis or type 2 diabetes,
* Creatinine clearance \<30 ml/min) or medication (e.g., glucocorticoids, anti-epileptic drugs, osteoporosis therapy, thiazolidinediones) affecting bone metabolism;
* Weight \>204 kg (DXA weight limit) or BMI \>60 kg/m2 (upper limit to allow for QCT examination);
* Current or planned pregnancy during follow-up; breast-feeding.
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
Change in vBMD at the spine (L2-L3) and proximal femur
Timeframe: before, 1 year after and 3 years after bariatric surgery
2
Change in muscle mass at mid-femur
Timeframe: before, 1 year after and 3 years after bariatric surgery