Efficacy and Safety of Venetoclax Combined With Dexamethasone and Etoposide in HLH

Hemophagocytic lymphohistiocytosis (HLH) is a rare and aggressive disease with high mortality and poor prognosis. The HLH-94 and HLH-04 regimens are most commonly used, but approximately 30% of the patients remain unresponsive. Currently, there is no unified evidence-based salvage treatment. There is no unified salvage regimen. This study plans to enroll 20 patients with refractory and recurrent hemophagocytic lymphohistiocytosis. Subjects will receive venetoclax combined with dexamethasone and etoposide for 8 weeks.The safety was evaluated once a week, and the efficacy was evaluated once every 2 weeks. Overall response rate will be evaluated at 8 weeks. Patients were followed up every 3 months thereafter.