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Effect of Biosynthetic Growth Hormone and/or Ethinyl Estradiol on Adult Height in Patients With Turner Syndrome

NCT00001221 · Status: COMPLETED · Phase: PHASE2 · Type: INTERVENTIONAL · Enrollment: 160

Last updated 2008-03-04

No results posted yet for this study

Summary

Turners Syndrome is a genetic condition in females that is a result of abnormal chromosomes. Girls with Turner syndrome are very short as children and as adults. Although their growth hormone secretion is almost always normal, giving injections of growth hormone to Turner syndrome girls may increase their rate of growth. In addition, most girls with Turner syndrome do not have normal ovaries.

In normal girls the ovaries begin producing small amounts of the female sex hormone, estrogen at about 11 - 12 years of age. As girls grow older the level of estrogen increases. Estrogen is responsible for the changes in girls known as feminization. During feminization the hips grow wider, the breasts develop, there is an increase in the rate of growth, and eventually girls experience their first menstrual period.

This study was designed to evaluate the effect of low dose estrogen, growth hormone, and the combination of low dose estrogen and growth hormone on adult height in girls with Turner syndrome. Patients will be entered into the study from ages 5 to 12 and will be randomly placed into one of four groups.

1. Group one will receive low dose estrogen
2. Group two will receive growth hormone
3. Group three will receive both low dose estrogen and growth hormone
4. Group four will receive a placebo "sugar pill"

Once started, the treatment will continue until the patients approach their adult height, and growth slows to less than 1/2 inch over the preceding year. This usually occurs by the age of 15 or 16.

Patients will be seen at the outpatient clinic every 6 months during the study and will receive a routine check-up with blood and urine tests, and hand/wrist X-rays to determine bone age. On patient's yearly visits they will have the density of bone measured in their spine and forearm.

Conditions

  • Gonadal Dysgenesis
  • Turner's Syndrome

Interventions

DRUG

Growth Hormone (Humatrope)

Sponsors & Collaborators

  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)

    lead NIH

Study Design

Purpose
TREATMENT

Eligibility

Sex
FEMALE
Healthy Volunteers
No

Timeline & Regulatory

Start
1987-09-30
Completion
2003-09-30

Countries

  • United States

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT00001221 on ClinicalTrials.gov