Open-Label Treatment (one year) OpenLabel Extension* Participants randomized to placebo will receive crinecerfont during open-label treatment Objective Evaluate the efficacy, safety and tolerability of crinecerfont in adults with classic CAH Crinecerfont is investigational and not approved in any country *The duration of participation in the study is approximately 20 months for the core study and will be a variable amount of time per participant for the open-label extension CAHtalystTM Adult and Pediatric S ...