The IGFBP-3 Stimulation Test: A New Tool for the Diagnosis of Growth Hormone Deficiency in Children.
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|ClinicalTrials.gov Identifier: NCT00235599|
Recruitment Status : Completed
First Posted : October 10, 2005
Last Update Posted : May 17, 2007
This project is designed to answer the question: Is there an acute IGFBP-3 response in normal children?
Our specific hypothesis states that under the influence of growth hormone secretagogues, intact IGFBP-3 molecule will undergo proteolysis and liberate IGFBP-3 fragments, along with other components of the ternary complex. This proteolysis will result in measurable rise in IGFBP-3, which will indicate the subject’s growth hormone status. Short children with growth hormone deficiency will not show an IGFBP-3 response.
|Condition or disease||Intervention/treatment|
|Short Stature Growth Hormone Deficiency||Procedure: IGFBP-3 Stimulation Test|
The diagnosis of growth hormone deficiency is problematic, given the shortcoming of the standard growth hormone stimulation test. This study is designed to investigate a new tool for the diagnosis of growth hormone deficiency.
Ten short, prepubertal children, who fulfill the inclusion criteria, will undergo a two-secretagogue standard growth hormone stimulation test, and an insulin like growth factor binding protein-3 (IGFBP-3) stimulation test simultaneously. During this test, components of the ternary complex moieties, viz, insulin-like growth factor-I (IGF-I), IGFBP-3 and acid labile subunit (ALS) will also be measured along with growth hormone.
The aim of this study is to detect an acute rise in IGFBP-3 of >15% from baseline.
The importance of this study is that it inculcates the specificity and improved sensitivity of stimulated IGFBP-3 in the diagnosis of growth hormone deficiency.
|Study Type :||Observational|
|Actual Enrollment :||10 participants|
|Observational Model:||Defined Population|
|Official Title:||The Insulin-Like Growth Factor Binding Protein-3 Test: A New Tool for the Diagnosis of Growth Hormone Deficiency in Children.|
|Study Start Date :||September 2005|
|Study Completion Date :||October 2006|
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): NCT00235599
|United States, Massachusetts|
|University of Massachusetts Medical School|
|Worcester, Massachusetts, United States, 01655|
|Principal Investigator:||Benjamin U Nwosu, MD||University of Massachusetts, Worcester|
|Study Director:||Carol A Cicarrelli, RN||University of Massachusetts, Worcester|