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临床试验/NCT00617292
NCT00617292Unknown不适用

Long-Term Outcome in Offspring and Mothers of Dexamethasone-Treated Pregnancies at Risk for Classical Congenital Adrenal Hyperplasia Owing to 21-Hydroxylase Deficiency

Office of Rare Diseases (ORD)4 个研究点 分布在 3 个国家目标入组 233 人开始时间: 2008年1月最近更新:
适应症

试验速览

阶段
不适用
发起方
入组人数
233
试验地点
4
主要终点
Prevalence of hypertension and obesity

研究概览

简要总结

Congenital adrenal hyperplasia (CAH) is a genetic disorder that affects the amount of steroids that the body forms. The most common form of CAH is 21-hydroxylase deficiency (21OHD), which leads to cortisol deficiency and causes the development of mature masculine characteristics in newborn, prepubescent, and grown females, and prepubescent males. Prenatal treatment with dexamethasone, a corticosteroid, has been shown to reduce the masculinization of genitalia. However, the long-term effects of dexamethasone on the children who received it as fetuses and on mothers who were exposed to it while they were pregnant have not been determined. This study will investigate potential long-term adverse side effects of prenatal dexamethasone treatment in children and young adults who received dexamethasone as fetuses and their mothers who were exposed to it during pregnancy.

详细描述

CAH is a genetic steroidogenesis disorder. The most common form, 21OHD, leads to cortisol deficiency and, in turn, an excess of androgen, a hormone that promotes the development and maintenance of male sex characteristics. As a result of this androgen excess, prepubescent males and newborn, prepubescent, and grown females exhibit mature masculine characteristics. Prenatal treatment with dexamethasone, a corticosteroid that decreases androgen levels, has been shown to prevent the development of abnormal genitalia in female infants. The long-term effects of this treatment, however, have not been evaluated. This study will determine whether prenatal dexamethasone treatment causes any long-term side effects by examining children and young adults who received dexamethasone as fetuses and their mothers, who were exposed to dexamethasone while pregnant.

This study has three parts. In Part 1 of the study, participants will provide written consent for release of their medical records from their physicians. Participants' physicians will then complete a medical form and/or provide copies of selected medical records for each participant. Parts 2 and 3 can be completed in 1 day. In Part 2 of the study, participants will complete questionnaires in their homes. Participants will answer questions about the following experiences: medical procedures, such as hormone treatment and genital surgery; education; work; hobbies; play activities and chores during childhood; identification with the male or female gender; relationships with parents; interest in being a parent; and overall adjustment. Part 3 of the study will consist of neuropsychological testing at the study site. This testing will focus on memory, attention, and overall cognitive abilities.

研究设计

研究类型
Observational
观察模型
Case Control
时间视角
Prospective

入排标准

年龄范围
12 Years 至 —(Child, Adult, Older Adult)
性别
All
接受健康志愿者

入选标准

  • For all participants:
  • English-speaking
  • Has undergone DNA testing for mutations in the CYP21A2 gene
  • For children who received prenatal dexamethasone treatment:
  • Genetic confirmation of 21OHD diagnosis
  • Received full or partial prenatal dexamethasone treatment
  • For children in the control group:
  • Did not receive prenatal dexamethasone treatment
  • For mothers:
  • History of at-risk pregnancy for a fetus affected with 21OHD
  • Genetic confirmation of child's diagnosis

排除标准

  • Any mental disorder that could prevent understanding of study materials
  • Current or past steroid use for reasons other than CAH (i.e., asthma, lupus, rheumatoid arthritis)

结局指标

主要结局

Prevalence of hypertension and obesity

时间窗: Throughout the study

"Normal" masculinization of unaffected females treated prenatally with dexamethasone

时间窗: Throughout the study

Normal masculinization of male fetuses partially treated prenatally with dexamethasone

时间窗: Throughout the study

Memory-related cognitive function

时间窗: Throughout the study

次要结局

未报告次要终点

研究者

发起方
Office of Rare Diseases (ORD)
申办方类型
Nih

研究点 (4)

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