Modified-release Hydrocortisone in Congenital Adrenal Hyperplasia

Deborah P Merke, Ashwini Mallappa, Wiebke Arlt, Aude Brac de la Perriere, Angelica Lindén Hirschberg, Anders Juul, John Newell-Price, Colin G Perry, Alessandro Prete, D Aled Rees, Nicole Reisch, Nike Stikkelbroeck, Phillippe Tourraine, Kerry Maltby, F Peter Treasure, John Porter, Richard J Ross

38 Citationer (Scopus)


CONTEXT: Standard glucocorticoid therapy in congenital adrenal hyperplasia (CAH) regularly fails to control androgen excess, causing glucocorticoid overexposure and poor health outcomes.

OBJECTIVE: We investigated whether modified-release hydrocortisone (MR-HC), which mimics physiologic cortisol secretion, could improve disease control.

METHODS: A 6-month, randomized, phase 3 study was conducted of MR-HC vs standard glucocorticoid, followed by a single-arm MR-HC extension study. Primary outcomes were change in 24-hour SD score (SDS) of androgen precursor 17-hydroxyprogesterone (17OHP) for phase 3, and efficacy, safety and tolerability of MR-HC for the extension study.

RESULTS: The phase 3 study recruited 122 adult CAH patients. Although the study failed its primary outcome at 6 months, there was evidence of better biochemical control on MR-HC, with lower 17OHP SDS at 4 (P = .007) and 12 (P = .019) weeks, and between 07:00h to 15:00h (P = .044) at 6 months. The percentage of patients with controlled 09:00h serum 17OHP (< 1200 ng/dL) was 52% at baseline, at 6 months 91% for MR-HC and 71% for standard therapy (P = .002), and 80% for MR-HC at 18 months' extension. The median daily hydrocortisone dose was 25 mg at baseline, at 6 months 31 mg for standard therapy, and 30 mg for MR-HC, and after 18 months 20 mg MR-HC. Three adrenal crises occurred in phase 3, none on MR-HC and 4 in the extension study. MR-HC resulted in patient-reported benefit including menses restoration in 8 patients (1 on standard therapy), and 3 patient and 4 partner pregnancies (none on standard therapy).

CONCLUSION: MR-HC improved biochemical disease control in adults with reduction in steroid dose over time and patient-reported benefit.

TidsskriftThe Journal of clinical endocrinology and metabolism
Udgave nummer5
Sider (fra-til)e2063-e2077
StatusUdgivet - maj 2021


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