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Constructing an Insulin-Like Growth Factor-based Prediction Model

NCT00263445 · Status: TERMINATED · Type: OBSERVATIONAL · Enrollment: 30

Last updated 2014-12-02

No results posted yet for this study

Summary

Serum insulin-like growth factor-I (IGF-I) measurements have been shown to correlate well with growth hormone action and effect, and recent data show that serum IGF-I may be related to safety and efficacy of growth hormone (GH) treatment in patients. Some studies indicate that high IGF-I levels are associated with increased cancer risk, and low IGF-I levels are associated with increased risk for cardiovascular disease. Studies in children also show that the serum IGF-I level is correlated with the change in height score achieved (that is, the higher the IGF-I level, the greater the gain in height). Pediatric endocrinologists have therefore begun to use serum IGF-I levels, in addition to growth rate and weight gain, to adjust the GH dose in treated children.

Although monitoring of serum IGF-I levels is becoming standard of care in patients begin treated with GH, there are few guidelines regarding the actual logistics of adjusting GH dose. As serum IGF-I level has been linked to both safety and efficacy of GH treatment, the ideal practice would be to maintain serum IGF-I levels within a certain target range. The overall goal of our study is to construct a mathematical model which predicts the change in GH dose necessary to achieve a desired change in IGF-I level.

Hypotheses to be tested by our study include the following: IGF-I measurement has a role in optimization of GH therapy; GH dose change to achieve IGF-I changes are predictable; and gender and puberty affect the relationship between dose change and target IGF-I changes.

Conditions

  • Growth Hormone Deficiency
  • Idiopathic Short Stature
  • Small for Gestational Age

Sponsors & Collaborators

Principal Investigators

  • Pinchas Cohen, MD · University of California, Los Angeles

Eligibility

Min Age
3 Years
Max Age
14 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2004-08-31
Primary Completion
2012-07-31
Completion
2012-07-31

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 NCT00263445 on ClinicalTrials.gov