Active clinical trials for "Preleukemia"

Despite improvements in outcomes after Hematopoietic Cell Transplantation (HCT) for Acute Myeloid Leukemia (AML) and Myelodysplastic Syndrome (MDS), the risk of relapse remains high and is the most common cause of mortality after HCT. Moreover, treatment options for relapse after HCT are limited. Strategies to reduce relapse with maintenance therapy in patients who are at high risk are needed to improve survival. 5-aza is a hypomethylating agent that has shown immune modulating properties that may enhance the graft-versus-leukemia (GVL) effect, including upregulation of tumor-associated antigen and costimulatory molecule expression. Moreover, 5-aza has properties that suggest protection against graft-versus-host disease (GVHD) as well. Preliminary data shows that it is well tolerated and effective in clinical use for the treatment of AML or MDS relapse after HCT, as well as for maintenance therapy. This study will evaluate the use of 5-aza for maintenance after HCT in patients with AML or MDS with risk factors that are associated with a high risk for relapse.

The purpose of this study is to determine the safety and establish the maximum tolerated dose (MTD) of omacetaxine in combination with azacitidine and G-CSF in patients with relapsed and/or refractory MDS.

The goal of Part 1 of this clinical research study is to learn if ponatinib alone can help to control FLT3-mutated AML or FLT3-mutated high-risk MDS. The safety of this drug will also be studied. The goal of Part 2 of this clinical research study is to find the highest tolerable dose of ponatinib in combination with 5-azacytidine and to learn if the highest dose level found can help to control FLT3-mutated AML or FLT3-mutated high-risk MDS. The safety of this combination will also be studied.

This is an interventional, multicenter, open label, phase II study designed to evaluate the safety and efficacy of Clofarabine in combination with low dose Cytarabine in untreated patients with poor risk of Myelodisplastic Syndromes.

A phase I study of azacitidine with Ceplene/interleukin-2 will first evaluate the safety and tolerability of this regimen in patients with higher risk myelodysplastic syndromes (MDS) who achieved a hematological response after 6 cycles of azacitidine. After approval by an independent Data Safety Monitoring Board (DSMB), the phase I study will be followed by an open label randomized phase II study designed to characterize the efficacy, safety, and tolerability of the addition of Ceplene/interleukin-2 to azacytidine in patients with higher risk myelodysplastic syndrome (MDS) who achieved a hematological response after 6 cycles of azacitidine.

For the first 28 day cycle, all patients will be treated with single agent pacritinib at 200 mg twice daily. The investigators chose this starting dose based on the previous three phase I studies of pacritinib as a single agent which showed that the maximum tolerated dose (MTD) to be 500 mg, and subsequently, the dose of 400 mg daily was recommended for the phase II studies. Recently, the results of the phase III PERSIST-1 trial comparing pacritinib to best available therapy (BAT) in patients with MF was reported at the 2015 American Society of Clinical Oncology (ASCO) annual meeting. Pacritinib was found to be significantly more effective than BAT at reducing spleen volume at 24 weeks of therapy and improving constitutional symptoms. Low dose decitabine has demonstrated depletion of DNMT1 in normal hematopoietic stem cells (HSC) without cytotoxicity and subcutaneous (SC) instead of intravenous (IV) administration may avoid high peak levels that can cause apoptosis. Furthermore, the low toxicity associated with low dose decitabine would allow for more frequent (1 to 3 times weekly) administration of the drug which would catch more cells in S-phase via greater exposure time. Based on these findings, a starting dose of decitabine 5 mg/m2 SC twice weekly should be well tolerated and effective in patients with MF and MPN/MDS syndromes when combined with pacritinib 400 mg daily.

RATIONALE: Drugs used in chemotherapy use different ways to stop cancer cells from dividing so they stop growing or die. Peripheral stem cell transplantation may be able to replace immune cells that were destroyed by chemotherapy used to kill cancer cells. PURPOSE: Phase I trial to study the effectiveness of chemotherapy plus peripheral stem cell transplantation in treating patients who have advanced hematologic cancer.

RATIONALE: Giving low doses of chemotherapy, monoclonal antibodies, and radiation therapy before a donor peripheral blood stem cell transplant helps stop the growth of cancer cells. It also stops the patient's immune system from rejecting the donor's stem cells when they do not exactly match the patient's blood. The donated stem cells may replace the patient's immune system and help destroy any remaining cancer cells (graft-versus-tumor effect). Sometimes the transplanted cells from a donor can also make an immune response against the body's normal cells. Giving cyclosporine and mycophenolate mofetil before transplant may stop this from happening. PURPOSE: This phase I/II trial is studying the side effects of alemtuzumab, fludarabine, and melphalan with or without cyclosporine, mycophenolate mofetil, and total-body irradiation before donor peripheral blood stem cell transplant and to see how well they work in treating patients with relapsed or refractory hematologic cancer.

Ki-67 is used as a marker for determination of the proliferative activity in solid tumors. The use within hemato-oncological malignancies is limited. This is related to limited technical possibilities of flow cytometry in the past. Meanwhile, flow cytometry in hemato-oncological malignancies has progressed to assessment of 8 colors and makes it possible to add Ki-67 as an additional marker to the 8-color panels. Adding Ki-67 to these panels could lead to improved diagnosis and prediction of therapy response for a number of hemato-oncological malignancies.

The purpose of this study is to determine whether cyclophosphamide post bone marrow transplant increases the rate of patients alive, in remission and without immunosuppression, one year after transplant, when compared with the combination of methotrexate and calcineurin inhibitor