Hemophagocytic Lymphohistiocytosis clinical trials at University of California Health

This study is a multi-site Phase Ib/II, 2-arm non-randomized clinical trial to determine the efficacy and tolerability of a response-adapted regimen combining ruxolitinib, dexamethasone, and etoposide as Frontline therapy for patients with newly diagnosed hemophagocytic lymphohistiocytosis (HLH) or as Salvage therapy for patients with relapsed/refractory HLH. Primary Objective - To determine the efficacy and tolerability of a response-adapted ruxolitinib-containing regimen for patients with newly diagnosed HLH. Secondary Objectives - To describe the efficacy and tolerability of a response-adapted ruxolitinib-containing regimen for patients with relapsed/refractory HLH. - To describe the overall response and outcome for patients with newly diagnosed or relapsed/refractory HLH who are treated with this response-adapted ruxolitinib-containing regimen. Exploratory Objectives - To estimate the pharmacokinetic (PK) parameters of ruxolitinib, assess covariates of ruxolitinib pharmacokinetics, and test whether the drug's effectiveness is correlated with systemic drug exposure. - To query specific immunologic biomarkers and determine whether the levels of these biomarkers correlate with disease response and outcome.