RecruitingPhase 2Drug trialMulticenter Study of Seliciclib (R-roscovitine) for Cushing DiseaseThis phase 2 multicenter, open-label clinical trial will evaluate safety and efficacy of 4 weeks of oral seliciclib in patients with newly diagnosed, persistent, or recurrent Cushing disease. Funding Source - FDA Office of Orphan Products Development (OOPD)