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
|First Submitted Date||October 6, 2005|
|First Posted Date||October 10, 2005|
|Last Update Posted Date||May 17, 2007|
|Study Start Date||September 2005|
|Primary Completion Date||Not Provided|
|Current Primary Outcome Measures||Not Provided|
|Original Primary Outcome Measures||Not Provided|
|Change History||Complete list of historical versions of study NCT00235599 on ClinicalTrials.gov Archive Site|
|Current Secondary Outcome Measures||Not Provided|
|Original Secondary Outcome Measures||Not Provided|
|Current Other Pre-specified Outcome Measures||Not Provided|
|Original Other Pre-specified Outcome Measures||Not Provided|
|Brief Title||The IGFBP-3 Stimulation Test: A New Tool for the Diagnosis of Growth Hormone Deficiency in Children.|
|Official Title||The Insulin-Like Growth Factor Binding Protein-3 Test: A New Tool for the Diagnosis of Growth Hormone Deficiency in Children.|
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.
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 Design||Observational Model: Defined Population
Primary Purpose: Screening
Time Perspective: Cross-Sectional
Time Perspective: Prospective
|Target Follow-Up Duration||Not Provided|
|Sampling Method||Not Provided|
|Study Population||Not Provided|
|Intervention||Procedure: IGFBP-3 Stimulation Test|
|Study Groups/Cohorts||Not Provided|
|Publications *||Nwosu BU, Soyka LA, Angelescu A, Lee MM. Evidence of insulin-like growth factor binding protein-3 proteolysis during growth hormone stimulation testing. J Pediatr Endocrinol Metab. 2011;24(3-4):163-7.|
* Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
|Original Enrollment||Same as current|
|Actual Study Completion Date||October 2006|
|Primary Completion Date||Not Provided|
|Ages||4 Years to 12 Years (Child)|
|Accepts Healthy Volunteers||Yes|
|Contacts||Contact information is only displayed when the study is recruiting subjects|
|Listed Location Countries||United States|
|Removed Location Countries|
|Other Study ID Numbers||305-SG01
|Has Data Monitoring Committee||No|
|U.S. FDA-regulated Product||Not Provided|
|IPD Sharing Statement||Not Provided|
|Responsible Party||Not Provided|
|Study Sponsor||University of Massachusetts, Worcester|
|PRS Account||University of Massachusetts, Worcester|
|Verification Date||May 2007|