Myelodysplastic Syndrome Clinical Trial
Ruxolitinib Phosphate and Azacytidine in Treating Patients With Myelofibrosis or Myelodysplastic Syndrome/Myeloproliferative Neoplasm
This phase II trial studies how well ruxolitinib phosphate and azacytidine work in treating patients with myelofibrosis or myelodysplastic syndrome/myeloproliferative neoplasm. Ruxolitinib phosphate may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth. Drugs used in chemotherapy, such as azacytidine, work in different ways to stop the growth of cancer cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Giving ruxolitinib phosphate and azacytidine may be an effective treatment for myelofibrosis or myelodysplastic syndrome/myeloproliferative neoplasm.
I. To determine the efficacy of the combination of RUX (ruxolitinib phosphate) with AZA (azacytidine) in patients with myelofibrosis (MF) (primary myelofibrosis, post polycythemia vera myelofibrosis, or post essential thrombocythemia myelofibrosis [PMF, post- PV MF, or post - ET MF]) in achieving objective improvements in disease status.
II. To determine the efficacy of the combination of RUX + AZA in patients with myelodysplastic syndromes/myeloproliferative neoplasms (MDS/MPN) including chronic myelomonocytic leukemia (CMML), atypical chronic myeloid leukemia (breakpoint cluster region [BCR]-c-abl oncogene 1, non-receptor tyrosine kinase [ABL1] negative: aCML), and myelodysplastic syndromes/myeloproliferative neoplasms, unclassifiable (MDS/MPN-U), in achieving objective improvements in disease status.
I. To determine the safety of the RUX + AZA combination in patients with MF and MDS/MPN.
I. To explore time to response (TTR) and duration of response (DOR). II. To explore the effect of the combination on anemia and transfusion dependence in patients with MF and MDS/MPN.
III. To explore the impact of baseline mutational profile on International Working Group (IWG)-Myeloproliferative Neoplasms Research and Treatment (MRT) response and overall survival in patients with MF and MDS/MPN.
IV. To explore the impact of baseline anemia on overall survival in patients with MF and MDS/MPN.
OUTLINE: Patients are assigned to 1 of 2 treatment arms.
ARM I (MF): Patients with MF receive ruxolitinib phosphate orally (PO) twice daily (BID) on days 1-28. Beginning course 4, patients also receive azacytidine subcutaneously (SC) or intravenously (IV) for 5 days. Treatment repeats every 28 days for 15 courses in the absence of disease progression or unacceptable toxicity.
ARM II (MDS/MPN): Patients with MDS/MPN receive ruxolitinib phosphate and azacytidine as in Arm I.
After completion of study treatment, patients are followed up for 30 days and up to 5 years.
Patients with a diagnosis of primary myelofibrosis (PM), post polycythemia vera myelofibrosis (PPV MF), or post essential thrombocythemia myelofibrosis (PET MF) requiring therapy, including those previously treated and relapsed or refractory, or if newly diagnosed, with intermediate or high risk according to International Working Group (IWG-MRT) criteria
Patients with a diagnosis of myelodysplastic syndrome/myeloproliferative neoplasm, unclassifiable (MDS/MPN-U) that require therapy
Understanding and voluntarily signing an Institutional Review Board (IRB)-approved informed consent form
Eastern Cooperative Oncology Group (ECOG) performance status 0 to 2
Direct bilirubin of =< 2 mg/dL
Serum glutamate pyruvate transaminase (SGPT) =< 2.5 x upper limit of normal (ULN) or 5 x ULN if related to MF or MDS/MPN associated liver infiltration
If total bilirubin is =< 2, fractionation is not required for eligibility determination
Creatinine =< 2.5 mg/dL
Platelets >= 50 x 10^9/L
Absolute neutrophil count (ANC) >= 1.0 x 10^9/L
For the MF and MDS/MPN-U arms (arms 1 & 2), use of any other standard drug (except hydroxyurea, anagrelide, growth factors, Revlimid, clofarabine, etc) or experimental drug or therapy within 14 days of starting study therapy
Patients previously treated with RUX or AZA (only applicable for the MF and MDS/MPN arms)
Any serious psychological condition or psychiatric illness that would prevent the subject from signing the informed consent document, in the investigator opinion
Pregnant or lactating females
Subjects of childbearing potential who are unwilling to take appropriate precautions (from screening through follow-up) to avoid becoming pregnant or fathering a child; females of non-childbearing potential are defined as women who a) are 55 years of age with history of amenorrhea for 1 year OR b) are surgically sterile for at least 3 months; for females of childbearing potential, or for males, pregnancy must be avoided by taking appropriate precautions; these precautions and the methods of contraception should be communicated to the subjects and their understanding confirmed
Any condition which places the subject at unacceptable risk if he/she were to participate in the study or confounds the ability to interpret data from the study
Known positive for human immunodeficiency virus (HIV) or with known active infectious hepatitis, type A, B or C
Patients with active malignancy of other type than required for this study, are not eligible with the exception of currently treated basal cell, squamous cell carcinoma of the skin, or carcinoma "in situ" of the cervix or breast; patients with malignancies with indolent behavior such as prostate cancer treated with radiation or surgery can be enrolled in the study as long as they have a reasonable expectation to have been cured with the treatment modality received
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