Protocol Number: 07-CH-0211

Title:

A Phase 2, Open Label, Crossover Pharmacokinetic and Pharmacodynamic Study to Compare Chronocort Versus Cortef in Patients with CAH

Number:

07-CH-0211

Summary:

This study will test a new, extended release form of hydrocortisone called Chronocort in patients with congenital adrenal hyperplasia (CAH). People with CAH do not make enough of the adrenal hormones cortisol and aldosterone, and their adrenal glands make too much of the sex hormone androgen. Medicines called glucocorticoids (hydrocortisone, dexamethasone and prednisone) are currently used to treat CAH, but finding the best dose of these drugs that effectively lowers androgens without causing undesirable side effects, such as weight gain and slow growth rate in children, is often difficult to achieve.

Adolescents and adults with CAH due to 21-hydroxylase deficiency may be eligible for this study. Children 16 years of age and older are eligible with confirmation by bone age that they are no longer growing.

Participants undergo the following tests and procedures during two inpatient visits one month apart at the NIH Clinical Center:

-Medical history and physical examination.

-Medications: Following 7 days of Cortef (standard drug treatment for CAH), patients begin taking Chronocort on day 3 of hospitalization and continue the tablets once a day for 1 month.

-Blood tests: A catheter (plastic tube) is inserted in a vein and left in place for frequent blood draws in order to avoid repeated needlesticks. Blood is drawn for chemistries, blood count, pregnancy test in women, and for serial tests (up to 26 samples in a 24-hour period) to measure hormone levels.

-24-hour urine test.

-Height and weight measurements.

Between the two hospitalizations, patients are contacted by NIH weekly to check for possible side effects from Chronocort. Two weeks after the first visit, patients also will have blood drawn by their regular doctor or a local clinic. A few days before the second hospitalization, patients undergo a 20-minute telephone questionnaire about energy level and well being.

About 30 days after discharge from the second hospitalization, patients are followed up with a telephone call to see how they are doing.

Sponsoring Institute:

National Institute of Child Health and Human Development (NICHD)

Recruitment Detail

Type: No longer recruiting/follow-up only

Gender: Male & Female

Referral Letter Required: No

Population Exclusion(s): None

Eligibility Criteria: This study is not currently recruiting new subjects. If you have questions about participating in a study, please contact the Patient Recruitment and Public Liaison Office, CC.

Special Instructions:

Currently Not Provided

Keyword(s):

Congenital Adrenal Hyperplasia

Hydrocortisone

Pharmacokinetic

Pharmacodynamic

Recruitment Keyword(s):

Congenital Adrenal Hyperplasia

CAH

Condition(s):

Congenital Adrenal Hyperplasia

21-Hydroxylase Deficiency

Adrenogenital Syndrome

Investigational Drug(s):

Chronocort for the treatment of CAH

Investigational Device(s):

None

Interventions:

Drug: Chronocort for the treatment of CAH

Supporting Site:

Warren G. Magnuson Clinical Center

Contact(s):

This study is not currently recruiting new subjects. If you have questions about participating in a study, please contact the Patient Recruitment and Public Liaison Office, CC.

Citation(s):

Therrell BL. Newborn screening for congenital adrenal hyperplasia. Endocrinol Metab Clin North Am. 2001 Mar;30(1):15-30. Review.

Merke DP, Bornstein SR. Congenital adrenal hyperplasia. Lancet. 2005 Jun 18-24;365(9477):2125-36. Review.

Krieger DT, Allen W, Rizzo F, Krieger HP. Characterization of the normal temporal pattern of plasma corticosteroid levels. J Clin Endocrinol Metab. 1971 Feb;32(2):266-84. No abstract available.

• Questions about participating in a study, please contact the Patient Recruitment and Public Liaison Office, CC.
• Technical questions regarding the Clinical Center web site, please contact the Department Clinical Research Informatics, CC.

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