Overview Low-dose IL-2 ( Interleukin-2) Treatment in Macrophage Activation Syndrome(MAS) Status: Unknown status Trial end date: 2018-06-01 Target enrollment: Participant gender: Summary The investigators evaluate the effectiveness and safeness of low-dose Recombinant Human Interleukin-2 (rhIL-2) for MAS. Phase: Phase 1/Phase 2 Details Lead Sponsor: Peking University People's HospitalTreatments: AldesleukinInterleukin-2