Conditions: Systemic Mastocytosis, Aggressive (ASM) Leukemia, Mast Cell Hematological Non-mast Cell Lineage Disease (AHNMD)
Allocation: NA | Intervention model: SINGLE_GROUP
Enrollment: 26
Healthy volunteers: no

Brief summary:
The safety and efficacy of midostaurin (PKC412), a novel investigational drug, will be evaluated on the basis of response rate, when administered to patients with aggressive systemic mastocytosis (ASM) or mast cell leukemia (MCL)

Detailed description:
This study assesses the activity and safety profile of twice-daily oral doses of midostaurin in patients with aggressive systemic mastocytosis (ASM) or mast cell leukemia (MCL) with or without associated clonal hematological non-mast cell lineage disease (AHNMD).

Aggressive systemic mastocytosis (ASM) and mast cell leukemia (MCL) are characterized by excessive bone marrow production of mast cells which can can infiltrate tissues and release harmful substances, resulting in organ damage. These diseases have very limited treatment options and poor prognosis. Existing treatments for in advanced mast cell disease, eg, interferon-alpha; corticosteroids; and/or cladribine, exhibit low response rates that are usually partial in nature.

Arms:
arm 1: 100 mg midostaurin twice daily as oral capsules

Interventions: intervention 1: Midostaurin
Intervention descriptions: intervention 1: Midostaurin is a broad-spectrum protein kinase inhibitor, acting on conventional PKC isoforms (α, β, γ); PDFRβ; VEGFR2; Syk; PKCη; Flk-1; Flt3; Cdk1/B; PKA; c-Kit; c-Fgr; c-Src; VEGFR1; and EGFR

Protocol document: