Adult Height Prediction in Congenital Adrenal Hyperplasia (OPALE Model)

August 10, 2020 updated by: Hospices Civils de Lyon

An Adult Height Prediction Model for Congenital Adrenal Hyperplasia From a National Cohort (OPALE Model Study)

Congenital Adrenal Hyperplasia (CAH) is a genetic rare disease, which alters the adrenal production of gluco and mineralo corticoïds. The treatment consists in supplementing children with hydrocortisone. Despite care for these children has improved substantially across decades, short adult height (AH) still remains an important consequence of the disease. About 20% of patients have an AH below 2 standard deviations compared to their expected AH.

In the OPALE-Model study, the investigators want to collect data from a cohort of 496 CAH French patients, born between 1970 and 1991 with a known genotype. Using their age, sex, growth, disease, bone maturation and pubertal data, the investigators will build a model which allows to predict their AH using data available at 8 years of age. The growth charts built from this cohort have shown that currently used formula to calculate the predicted AH (Bayley-Pineau's formula) is not applicable to children with CAH.

In this project, the investigators plan to compute an AH prediction model using data from children born between 1970 and 1993, and to validate the model using data from a different cohort (i.e. children born between 1994 and 1998). this choice was due to availability of data for computing the model first, and in a second stage, data from more recently born patients.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Observational

Enrollment (Actual)

496

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

      • Lyon, France, 69500
        • Hospices Civils de Lyon

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 40 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Adullts with Congenital Adrenal Hyperplasia

Description

Inclusion Criteria:

  • children with CAH, genetically proven, classical form, virilizing form, with deficit of 21 hydroxylase, 11 beta hydroxylase, or 3 beta ol dehydrogenase, born between 1972-1993 (cohort 1) and 1994-1998 (cohort 2).
  • medical charts should be available.

Exclusion Criteria:

  • Patients with chronic growth altering disease, Turner syndrome, or other genetic anomaly
  • Patients having received any treatment with Growth Hormone (GH)

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
cohort for model computing
patients with CAH, born between 1970 and 1993, with genetically proven CAH, available growth and bone maturation data.
cohort for model validation
patients with CAH, born between 1994 and 1998, with genetically proven CAH, available growth and bone maturation data.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Adult height (AH)
Time Frame: up to 18 years
AH is defined as i) the height recorded after age 20 in boys or 18 in girls; ii) Or the height recorded when bone age is >= 18 years in boys and 16 years in girls; Or iii) the height measured after growth velocity dropped to <= 1 cm/year.
up to 18 years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Investigators

  • Study Chair: Catherine Cornu, MD, Hospices Civils de Lyon

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

September 1, 2010

Primary Completion (Actual)

December 31, 2018

Study Completion (Actual)

December 31, 2018

Study Registration Dates

First Submitted

May 11, 2017

First Submitted That Met QC Criteria

May 19, 2017

First Posted (Actual)

May 22, 2017

Study Record Updates

Last Update Posted (Actual)

August 11, 2020

Last Update Submitted That Met QC Criteria

August 10, 2020

Last Verified

August 1, 2020

More Information

Terms related to this study

Other Study ID Numbers

  • CE-CIC-GREN-09-19

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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