Plasma progesterone, 17-hydroxyprogesterone, androstenedione and testosterone in prepubertal, pubertal and adult subjects with congenital virilizing adrenal hyperplasia as indicators of adrenal suppression.

To determine whether a single morning plasma level of 17-hydroxyprogesterone (17OH-P), androstenedione, testosterone and progesterone reflected the degree of control of 21-hydroxylase congenital virilizing adrenal hyperplasia (CVAH) as indicated by 24-hour urinary 17-ketosteroid and pregnanetriol excretion, 142 simultaneous 24-hour urine and morning blood collections were made from 65 patients with CVAH. Patients were grouped into five categories on the basis of age, skeletal age, and sex. Paired blood and urinary data were analyzed. The results suggest that androstenedione is the most reliable indicator for all patient categories. Testosterone is an excellent indicator for children of both sexes and for adolescent and adult females. Levels of 17OH-P are difficult to interpret, as they can be several fold higher than the normal values when adrenal suppression appears adequate on the basis of urinary data. In general, progesterone is a poor indicator.