ClinicalTrials.gov
ClinicalTrials.gov Menu

DHEA Replacement in Adrenalectomized/Hypoadrenal Patients

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
ClinicalTrials.gov Identifier: NCT00279929
Recruitment Status : Completed
First Posted : January 20, 2006
Last Update Posted : May 23, 2011
Sponsor:
Collaborators:
National Institutes of Health (NIH)
National Institute on Aging (NIA)
Information provided by:
Mayo Clinic

Brief Summary:

The role of dehydroepiandosterone (DHEA) and its sulphated ester (DHEAS) [together known as DHEA(S)] in humans remains to be fully elucidated. They are the most abundant circulating steroid hormones in humans with the principle source of production being the adrenal glands. In adrenalectomised or hypoadrenal subjects it is not standard clinical practice to replace this hormone. Whilst this lack of DHEA(S) is clearly not life threatening, the published literature on the psychological effects of replacement in this population has shown some benefit in quality of life but data concerning the metabolic effects is conflicting and incomplete. We wish to carry out a study to measure the effect of DHEA(S) replacement in a group of adrenalectomised / hypoadrenal subjects and measure the outcome of a number of psychological and metabolic parameters both prior to and after twelve weeks of 50 mg/day DHEA(S) in a double blind randomised cross over design.

Mood, quality of life and sexual well being will be assessed using validated questionnaires. In addition, we will utilise the GCRC facility to measure body composition using total body water and DEXA. We will measure insulin sensitivity, exercise performance, muscle fatigability and VO2 max. Pre- and post- intervention muscle biopsies will assess DHEA(S) effects on myosin heavy chain isoform expression; skeletal muscle mitochondrial ATP production and be used to assess muscle enzyme levels.


Condition or disease Intervention/treatment Phase
Aging Dehydroepiandosterone Replacement DHEA Replacement Procedure: DHEA Replacement Not Applicable

Study Type : Interventional  (Clinical Trial)
Enrollment : 32 participants
Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: Double
Primary Purpose: Treatment
Official Title: Assessing the Effects of Dehydroepiandrosterone Replacement on the Mood of Adrenalectomised/Hypoadrenal Subjects
Study Start Date : July 2002
Actual Primary Completion Date : June 2007
Actual Study Completion Date : June 2007



Primary Outcome Measures :
  1. physical performance (VO2 peak, muscle strength as measured by chest press, double knee extension, and isokinetic knee extension
  2. quality of life
  3. glucose and insulin metabolism
  4. muscle protein synthesis
  5. body composition


Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.


Ages Eligible for Study:   18 Years to 75 Years   (Adult, Older Adult)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   No
Criteria

Inclusion criteria:

  • Subjects who have been adrenalectomised or have been hypoadrenal (from whatever cause) for > 24 months;
  • Subjects who have been on a steady glucocorticoid replacement regime for >12 months;
  • Women of child bearing age in whom oestrogen status has been steady for > 6 months - i.e. either on or off the oral contraceptive pill for that time;
  • Subjects on other forms of hormone replacement therapy (e.g. thyroxin) in whom dose has remained the same for > 6 months.

Exclusion criteria:

  • BMI >35 Kg/m2;
  • Individuals with fasting blood glucose above 120mg/dl;
  • A history of sex hormone dependant malignancy;
  • A history of liver disease;
  • Renal failure;
  • Cardiovascular disease (other than hypertension);
  • Polycythaemia;
  • Pregnancy or breastfeeding;
  • Cerebrovascular disorders;
  • Neurological disorders;
  • PSA levels above the age related reference range;
  • Use of drugs known to alter mood within the 6 months prior to enrolment;
  • Any drug known to affect hepatic biotransformation;
  • Evidence of psychiatric disease or dementia;
  • Postmenopausal women who have been on hormone replacement therapy for less than six months.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00279929


Locations
United States, Minnesota
Mayo Clinic
Rochester, Minnesota, United States, 55905
Sponsors and Collaborators
Mayo Clinic
National Institutes of Health (NIH)
National Institute on Aging (NIA)
Investigators
Principal Investigator: K. Sreekumaran Nair, M.D. Mayo Clinic

Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
ClinicalTrials.gov Identifier: NCT00279929     History of Changes
Other Study ID Numbers: 669-02
P01AG014383 ( U.S. NIH Grant/Contract )
First Posted: January 20, 2006    Key Record Dates
Last Update Posted: May 23, 2011
Last Verified: May 2011

Additional relevant MeSH terms:
Dehydroepiandrosterone
Adjuvants, Immunologic
Immunologic Factors
Physiological Effects of Drugs