Effects of DHEA and Exercise in the Elderly

This study has been completed.
Sponsor:
Information provided by:
Washington University School of Medicine
ClinicalTrials.gov Identifier:
NCT00205686
First received: September 13, 2005
Last updated: January 4, 2006
Last verified: September 2005

September 13, 2005
January 4, 2006
April 2001
Not Provided
thigh muscle mass, muscle strength, intadominal fat, bone mineral density, markers of bone turnover, insulin sensitivity,
Same as current
Complete list of historical versions of study NCT00205686 on ClinicalTrials.gov Archive Site
quality of life, vascular reactivity, levels of hormones
Same as current
Not Provided
Not Provided
 
Effects of DHEA and Exercise in the Elderly
DHEA+Exercise-Effect on Sarcopenia and Osteopenia of Aging

DHEA or dehydroepiandrosterone is a naturally occurring hormone secreted by tghe adrenal galnds. The secretion of HDEA declines with aging. DHEA is considered a food supplement and it is not regulated by the FDA. The purpose of this research is to evaluate ceratin of the biological effects of a reaplcement dose of DHEA. As you get older, DHEA levels are lower than you were younger. The replamcent dose is the dose of DHEA that will raise DHEA levesl to the levels found in young people. Anotehr purpose is to determine whether DHEA enhances the adaptations to an exercise training program.

DHEA declines dramatically with age. Low DHEA levels have been found to correlate with sarcopenia and osteopenia. It is, therefore, postulated that many physiologic changes of aging are secondary to the decline in DHEA. Thus, the objective of the proposed research is to evaluate the effect of DHEA replacement on age-related changes in body composition, muscle function and metabolism, and bone mass in healthy older adults. The specific aims are to evaluate the effects of DHEA replacement (50 mg/d) alone, or in combination with resistance exercise training on: a) lean body mass, intraabdominal fat and thigh muscle volume, and muscle protein synthesis rate b) bone mineral density (BMD) of the total body, lumbar spine, and hip and biochemical markers of bone turnover and c) insulin sensitivity. It is hypothesized that DHEA administration will have additive or synergistic effects with exercise. Healthy but sedentary subjects , aged 65-78 years old, will be randomized to receive either DHEA, 50 mg/d, or placebo and to participate in either supervised or home exercise training programs. The supervised exercise program will consist of resistance training designed to increase muscle mass, strength, and bone mass, and decrease fat mass. The goal of this research is to provide information on the potential role of DHEA replacement therapy in maintaining the physical health and functional capacity of older people

Interventional
Phase 3
Allocation: Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Parallel Assignment
Masking: Double-Blind
Primary Purpose: Treatment
Healthy Volunteers
  • Drug: DHEA
  • Behavioral: exercise
Not Provided

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Completed
64
September 2005
Not Provided

Inclusion Criteria:

  • 65 to 78 years old men and women

Exclusion Criteria:

  • hormone therapy, history of hormone-dependent neoplasia, PSA above 2.6 ng/mL, or active serious illness, contraindications to exercise, dementia
Both
65 Years to 78 Years
Yes
Contact information is only displayed when the study is recruiting subjects
United States
 
NCT00205686
K23RR016191, K23RR016191
Not Provided
Not Provided
Washington University School of Medicine
Not Provided
Principal Investigator: Dennis T Villareal, MD Washington University School of Medicine
Washington University School of Medicine
September 2005

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP