RecruitingDrug trialMulticenter, Platform-type Clinical Study of Refractory/Recurrent Acute Myeloid LeukemiaTo study the optimal therapeutic strategies for salvage treatment of refractory/relapsed AML, and to clarify the effectiveness and safety of various salvage treatment options. A prospective, multicenter, platform-type study was conducted to explore the overall response rate, tolerability, and survival of patients with R/R AML with different treatment regimens.