This study is designed as a Phase Ib/II trial. The phase Ib cohort will enroll patients with severe aplastic anemia (SAA) who have failed to respond to intensified immunosuppressive therapy. In contrast, the phase II cohort will include newly diagnosed and treatment-naïve patients with SAA. A Safety Review Committee (SRC), chaired by the principal investigators, will be established to oversee patient safety throughout the study. Suppose the Phase Ib results demonstrate acceptable safety and tolerability. In that case, the data will be submitted to the Ethics Committee for review, and, upon approval, the study will advance to Phase II. Phase Ib uses a 3+3 dose-escalation design with two cohorts: 150 mg golidocitinib orally every other day (low dose) or once daily (high dose). Phase II is a single-arm trial with Simon's two-stage optimal design.
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Incidence and severity of adverse events
Timeframe: Within 12 weeks
Percentage of patients with complete hematological response
Timeframe: Within 3 months post treatment