- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00472745
The Effect of Weight Loss on Bone in Men
Nutritional Regulation of Bone - Pilot Study
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
This pilot study of the effect of weight loss on bone health in men is being undertaken in conjunction with studies of the effect of weight loss on bone health in women for comparison purposes. See NCT00473031, NCT00472680, and NCT00472654. This information is important for determining optimal nutrient requirements during weight loss.
Participants will be recruited for both weight loss and weight maintenance. All participants will be asked to take a daily vitamin/mineral supplement and, depending on their usual food intake, they may be asked to take a calcium tablet to meet the recommended intake throughout the study period. Weight loss participants will attend regular counseling sessions (about 45 minutes each) with a dietitian for approximately 6 months; they will be asked to attend 6 sessions but will be given the opportunity to attend 13 sessions. Body composition will be measured by a dual-energy x-ray absorptiometry (DXA) machine, ultrasound, and peripheral quantitative computer tomography (pQCT) before and after 6 months of weight loss. Bone, mineral, protein and lipid markers, and hormones that influence bones will also be measured.
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
New Jersey
-
New Brunswick, New Jersey, United States, 08901
- Rutgers University
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- Obese or overweight
- Must live in the geographic vicinity of Rutgers University
Exclusion Criteria:
- Currently on any medication known to influence calcium or bone metabolism, including HRT, or with evidence of diseases known to influence calcium metabolism (i.e. metabolic bone disease, hyperparathyroidism, untreated thyroid disease, significant immune, hepatic, or renal disease, significant cardiac disease [i.e., heart attack or stroke in the past 6 months., abnormal EKG], active malignancy or cancer therapy within the past year)
- History of kidney stones
- Weight gain or weight loss (5% of body wt) within 3 months prior to recruitment
- Participation in other investigational studies during the 12-month study period
- Usually have a very high or low intake of calcium (more than 1500 or less than 500 mg per day)
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Non-Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: WL
weight loss (WL) with nutrition/behavior modification counseling
|
Weight loss participants will consume a reduced calorie diet based on their individual caloric needs to lose 1.5-2 lbs/week, and will attend regular counseling sessions (for about 45 minutes each) with a dietitian for 6 months
|
Active Comparator: WM
Weight Maintenance (WM)
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Diet for weight maintenance for 6 months
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Changes in bone density and quality
Time Frame: 6 months
|
6 months
|
Collaborators and Investigators
Sponsor
Collaborators
Investigators
- Principal Investigator: Sue Shapses, PhD, RD, Rutgers University, Nutritional Sciences
Publications and helpful links
General Publications
- Shapses SA, Riedt CS. Bone, body weight, and weight reduction: what are the concerns? J Nutr. 2006 Jun;136(6):1453-6. doi: 10.1093/jn/136.6.1453.
- Riedt CS, Cifuentes M, Stahl T, Chowdhury HA, Schlussel Y, Shapses SA. Overweight postmenopausal women lose bone with moderate weight reduction and 1 g/day calcium intake. J Bone Miner Res. 2005 Mar;20(3):455-63. doi: 10.1359/JBMR.041132. Epub 2004 Nov 29.
- Cifuentes M, Riedt CS, Brolin RE, Field MP, Sherrell RM, Shapses SA. Weight loss and calcium intake influence calcium absorption in overweight postmenopausal women. Am J Clin Nutr. 2004 Jul;80(1):123-30. doi: 10.1093/ajcn/80.1.123. Erratum In: Am J Clin Nutr. 2005 Jan;81(1):199.
- Goode LR, Brolin RE, Chowdhury HA, Shapses SA. Bone and gastric bypass surgery: effects of dietary calcium and vitamin D. Obes Res. 2004 Jan;12(1):40-7. doi: 10.1038/oby.2004.7.
- Pop LC, Sukumar D, Tomaino K, Schlussel Y, Schneider SH, Gordon CL, Wang X, Shapses SA. Moderate weight loss in obese and overweight men preserves bone quality. Am J Clin Nutr. 2015 Mar;101(3):659-67. doi: 10.3945/ajcn.114.088534. Epub 2015 Jan 7.
- Ogilvie AR, Schlussel Y, Sukumar D, Meng L, Shapses SA. Higher protein intake during caloric restriction improves diet quality and attenuates loss of lean body mass. Obesity (Silver Spring). 2022 Jul;30(7):1411-1419. doi: 10.1002/oby.23428. Epub 2022 May 11.
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- AG0084
- 5R01AG012161 (U.S. NIH Grant/Contract)
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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