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A Randomized, Double-Blind, Placebo-Controlled Study to Evaluate the Safety and Efficacy of Crinecerfont (NBI-74788) in Adult Subjects with Classic Congenital Adrenal Hyperplasia, Followed by Open-Label Treatment (CAHTALYST)

The purpose of this study is to see if Crinecerfont is effective in reducing daily glucocorticoid dosage while maintaining adrenal androgen control.The purpose of the study is also to see if Crinecerfont is effective in reducing adrenal steroid…

A Randomized, Double-Blind, Placebo-Controlled Study to Evaluate the Efficacy and Safety of SPR001 (Tildacerfont) in Reducing Supraphysiologic Glucocorticoid Use in Adult Subjects with Classic Congenital Adrenal Hyperplasia

This study has been transitioned to CTIS with ID 2023-503771-13-00 check the CTIS register for the current data. The purpose of this study is to see if tildacerfont can reduce the amount of GC (e.g., hydrocortisone) you need to take and reduce the…

A Randomized, Double-Blind, Placebo-Controlled, Dose-Ranging Study to Evaluate the Efficacy and Safety of SPR001 (Tildacerfont) in Adult Subjects with Classic Congenital Adrenal Hyperplasia

The primary purpose of this study is to assess the dose response of several doses of tildacerfont in controlling hormone levels and reducing testicular tumors over 12 weeks by comparing the tildacerfont hormonal control response to a placebo, a *…

A Double-blind, Placebo-Controlled, Randomized Withdrawal Following Open-label Therapy Study to Assess the Safety and Efficacy of Levoketoconazole (2S,4R-ketoconazole) in the Treatment of Endogenous Cushing's Syndrome

Primary: To determine the effect of withdrawing to placebo versus continuing treatment with levoketoconazole on the cortisol therapeutic response previously established during open-label levoketoconazole therapy.Secondary:1. To compare the effects…