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Brief Title: A Safety Study of XL019 in Adults With Myelofibrosis
Official Title: A Phase 1 Dose-Escalation Study of the Safety, Pharmacokinetics, and Pharmacodynamics of XL019 Administered to Subjects With Myelofibrosis
Study ID: NCT00522574
Brief Summary: The purpose of this study is to evaluate the safety and tolerability of XL019 in adults with myelofibrosis. XL019 is a selective inhibitor of the cytoplasmic tyrosine kinase JAK2. JAK2 is activated by cytokine and growth factor receptors and phosphorylates members of the STAT family of inducible transcription factors. Activation of the JAK/STAT pathway promotes cell growth and survival, and is a common feature of human tumors. JAK2 is activated by mutation in the majority of patients with myelofibrosis, polycythemia vera and essential thrombocytosis and appears to drive the inappropriate growth of blood cells in these conditions.
Detailed Description:
Minimum Age: 18 Years
Eligible Ages: ADULT, OLDER_ADULT
Sex: ALL
Healthy Volunteers: No
UCSF - Division of Hematology/Oncology, San Francisco, California, United States
H. Lee Moffitt Cancer Center & Research Institute, Tampa, Florida, United States
Dana Farber Cancer Institute, Boston, Massachusetts, United States
Mt. Sinai School of Medicine, New York, New York, United States
MD Anderson Cancer Center, Houston, Texas, United States