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The Effect of Androgen and Growth Hormone on Height and Learning in Girls With Turner Syndrome

This study has been completed.
National Institute of Neurological Disorders and Stroke (NINDS)
Information provided by (Responsible Party):
Thomas Jefferson University Identifier:
First received: January 8, 2002
Last updated: June 4, 2012
Last verified: June 2012
The purposes of this study are to learn whether treatment with an androgen type hormone will improve the visual-spatial problems associated with Turner syndrome, and to evaluate the effect growth hormone, with and without androgen, has on growth.

Condition Intervention Phase
Turner Syndrome
Drug: estrogen
Drug: androgen
Other: placebo
Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double Blind (Participant, Care Provider, Investigator)
Primary Purpose: Treatment
Official Title: The Effects of Androgen, Estrogen, and the Combination of Androgen and Estrogen on Growth Rate and Cognitive Function of Growth Hormone-treated Girls With Turner Syndrome

Resource links provided by NLM:

Further study details as provided by Thomas Jefferson University:

Primary Outcome Measures:
  • Cognitive function in girls with Turner Syndrome [ Time Frame: 4 years ]

Enrollment: 200
Study Start Date: November 1992
Study Completion Date: June 2012
Primary Completion Date: January 2007 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: 1 Drug: estrogen
Participants were started on ethinyl estradiol at a daily dose of 50ng/kg at the beginning of the 3rd year of the study. The estrogen was continued until study end.
Drug: androgen
Oxandrolone or placebo capsule, .06mg/kg/day, orally, for 2 years
Placebo Comparator: 2 Drug: estrogen
Participants were started on ethinyl estradiol at a daily dose of 50ng/kg at the beginning of the 3rd year of the study. The estrogen was continued until study end.
Other: placebo
an inactive substance

Detailed Description:
Turner syndrome is associated with short stature, multiple physical stigmata, absent pubertal development, and increased learning problems. This study is designed to (1) examine the effects of sex steroids (androgen and estrogen) on multiple variables including growth rate, GH binding protein, IGF-I, IGFBP3, and cognitive function in the setting of supplemental growth hormone administration and (2) to investigate any synergistic or additive effects of the androgen and estrogen combination versus each alone, on the above variables.

Ages Eligible for Study:   10 Years to 14 Years   (Child)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   No
  • Karyotype diagnosis compatible with Turner syndrome, but no presence of any Y material in the peripheral karyotype unless a gonadectomy has been performed;
  • Chronological age between 10.0 and 14.9 years;
  • Bone age less than or equal to 12 years; and
  • No treatment with estrogen, androgen, growth hormone, or any other growth-promoting agents exceeding 12 months, and no treatment with any of these agents in the previous 3 months.
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Please refer to this study by its identifier: NCT00029159

United States, Maryland
National Institutes of Health
Bethesda, Maryland, United States, 20892
United States, Pennsylvania
Thomas Jefferson University Hospital, 1025 Walnut Street, Suite 726
Philadelphia, Pennsylvania, United States, 19102
Sponsors and Collaborators
Thomas Jefferson University
National Institute of Neurological Disorders and Stroke (NINDS)
Principal Investigator: Judith L. Ross, M.D. Thomas Jefferson University
  More Information

Publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: Thomas Jefferson University Identifier: NCT00029159     History of Changes
Other Study ID Numbers: R01NS032531 ( US NIH Grant/Contract Award Number )
Study First Received: January 8, 2002
Last Updated: June 4, 2012

Keywords provided by Thomas Jefferson University:
Turner syndrome
growth hormone

Additional relevant MeSH terms:
Turner Syndrome
Gonadal Dysgenesis
Primary Ovarian Insufficiency
Pathologic Processes
Disorders of Sex Development
Urogenital Abnormalities
Sex Chromosome Disorders of Sex Development
Heart Defects, Congenital
Cardiovascular Abnormalities
Cardiovascular Diseases
Heart Diseases
Congenital Abnormalities
Sex Chromosome Disorders
Chromosome Disorders
Genetic Diseases, Inborn
Gonadal Disorders
Endocrine System Diseases
Ovarian Diseases
Adnexal Diseases
Genital Diseases, Female
Estrogens, Conjugated (USP)
Ascorbic Acid
Hormones, Hormone Substitutes, and Hormone Antagonists
Physiological Effects of Drugs processed this record on April 28, 2017