Epidemiology Study on Insulin-like Growth Factor-1 in Children With Idiopathic Short Stature (EPIGROW Study) (EPIGROW)

Descriptive, Cross-sectional and Prospective Epidemiology Study, on the Identification of Insulin-like Growth Factor-1 Status in Idiopathic Short Stature Children (EPIGROW Study)

The purpose of the protocol is to describe the distribution of IGF-1 deficiency in the studied population of Idiopathic Short Children without Growth Hormone Deficiency or any other identified cause of short stature and not treated with recombinant Growth Hormone or IGF-1

Study Overview

• Status: Completed
• Conditions: Idiopathic Short Stature
• Intervention / Treatment: Procedure: Blood sampling; Genetic: Genetic analysis

• Study Type: Observational
• Enrollment (Actual): 275

Contacts and Locations

Study Locations

• France
  • Paris, France
    • Ipsen Central Contact

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 2 years and older (ADULT, OLDER_ADULT, CHILD)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

• Sampling Method: Non-Probability Sample

Study Population

Idiopathic Short Stature children

Description

Inclusion Criteria:

• Short children, height ≤ -2.5 SDS
• Age ≥ 2 years
• With at least one normal or elevated peak GH response to a stimulatory test (peak GH ≥ 7 ng/mL) at the time of the study and/or at a given time-point during the last 12 months
• Pre-pubertal
• Signed Informed Consent, including agreement to have blood samples taken for hormonal measurement and genetic analysis, by both parents or by Legally Acceptable Representatives when applicable and the child when applicable

Exclusion Criteria:

• The following identified causes of short stature:
• GH-deficient short stature
• Other endocrine causes (hypothyroidism, Cushing's syndrome, parathyroid or vitamin D disorders, hypogonadism)
• Identified syndromes with genetic abnormalities (including Turner, Noonan and Russell-Silver syndromes)
• Chronic diseases including malnutrition, coeliac disease, chronic inflammation, muscular dystrophy, thalassaemia, blood disorders, severe liver or kidney disease and severe cyanotic heart disease
• Chronic diseases requiring treatment with chronically administered corticosteroids
• Skeletal dysplasia
• Psychosocial short stature
• Patients having received irradiation, including total body irradiation
• Patients currently on GH or IGF-1 therapy or having received GH or IGF-1 therapy in the last 12 months
• Patients likely to require GH, IGF-1 or chronic corticosteroid treatment during the study
• Any mental condition that prevents both parents or Legally Acceptable Representatives and the child when applicable from understanding the nature, scope and possible consequences of the study, or any evidence of an uncooperative attitude

Study Plan

How is the study designed?

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Time Frame
Proportion of patients with a mean of the two basal IGF-1 measurements ≤-2.0 SDS, > -2.0 SDS and below 0 SDS, ≥ 0.0 SDS	Day 1 for the first sample; between Day 14 and Day 45 for the second sample

Secondary Outcome Measures

Outcome Measure	Time Frame
Proportion of patients with height ≤ -3.0 SDS,and height > -3.0 SDS and ≤ -2.5 SDS	Day 1
Description of mean basal IGF-1 and IGFBP-3 levels, and basal ALS and prolactin levels in patients with height ≤ -3.0 SDS, and height > -3.0 SDS and ≤ -2.5 SDS	Day 1 and Day 14-45
Proportion of patients having presented at least one historical documented clinically significant episode of hypoglycaemia	Before the start of the study and during the study.
Identification of candidate genes and/or DNA aberrations or changes potentially associated with short stature. DNA regions identified during the genome-wide scan will be further mapped at higher resolution (DNA-sequencing)	Day 1

Collaborators and Investigators

• Sponsor: Ipsen

Study record dates

Study Major Dates

• Study Start: October 1, 2008
• Primary Completion (ACTUAL): January 1, 2010
• Study Completion (ACTUAL): January 1, 2010

Study Registration Dates

• First Submitted: July 2, 2008
• First Submitted That Met QC Criteria: July 3, 2008
• First Posted (ESTIMATE): July 4, 2008

Study Record Updates

• Last Update Posted (ACTUAL): January 15, 2019
• Last Update Submitted That Met QC Criteria: January 11, 2019
• Last Verified: January 1, 2019

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Endocrine System Diseases; Genetic Diseases, Inborn; Musculoskeletal Diseases; Bone Diseases; Bone Diseases, Developmental; Dwarfism
• Other Study ID Numbers: 2-79-52800-001