View clinical trials related to Leukemia, Myeloid.
Filter by:This phase I trial is studying the side effects and best dose of 5-Fluoro-2'-deoxycytidine (FdCyd) when given together with tetrahydrouridine (THU) in treating patients with acute myeloid leukemia (AML) or myelodysplastic syndromes (MDS). FdCyd may inhibit cancer cell growth by increasing the production in cells of compounds that suppress growth or by otherwise killing cells. Although FdCyd is stable as a drug solution, it is rapidly inactivated by an enzyme present in people. THU is included in the treatment to inhibit the enzyme, prolonging the time FdCyd remains in the body
Prospective, multicenter, uncontrolled cohort study to analyze the efficacy of a risk adapted treatment strategy, including gemtuzumab ozogamicin (GO) during consolidation, for patients with acute myeloid leukemia (AML).
The prognosis of elderly patients with relapsed or refractory acute myeloid leukemia (AML) is grave. Because of their chronological age and/or the presence of multiple co-morbidities, treatment-related mortality in elderly patients with AML is quite high although higher intensive treatment is mandatory to overcome chemoresistant characteristic of their disease. Several regimens have been evaluated as salvage chemotherapy for relapsed or refractory AML such as Mitoxantrone/High dose Cytarabine or Amsacrine/High dose Cytarabine. These regimens could achieve complete remission (CR) in a part of patients, but resulted in higher treatment related mortality (TRM). Accordingly, less intensive salvage regimen is needed for elderly patients with relapsed or refractory AML. The activity of histone deacetylase (HDAC) inhibitor, Vorinostat or Suberoylanilide hydroxamic acid (SAHA), against AML has been suggested in cell line models and in animal model as well as in a phase 1 trial. The phase 1 study determined the MTD of oral Vorinostat as 200mg twice daily or 250mg thrice daily. In addition, the phase 1 trial showed the antitumor activity of Vorinostat with 17% of response rate in patients with advanced leukemia or myelodysplastic syndrome (MDS). Accordingly, further study is recommended to demonstrate the clinical activity of Vorinostat in AML. In terms of the combining drug with Vorinostat, anthracycline is one of the best candidate. A in vitro study demonstrated that the combination of anthracycline (esp. idarubicin) with HDAC inhibitor have significant clinical activity against leukemia. Another candidate is Gemtuzumab ozogamicin, which is a calicheamicin-conjugated antibody directed against CD33 antigen on AML blasts. The U.S. FDA also approved the use of GO in relapsed AML as a monotherapy. A study also showed that the combinational therapy of GO with attenuated doses of standard induction chemotherapy could successfully induce CR without increasing treatment-related mortality in AML patients aged 55 or older. A in vitro study reported that HDAC inhibitor valproic acid augmented the clinical activity of GO toward CD33+ AML cells. The study demonstrated that the strategy using HDAC inhibitor together with GO could potentially induce synergistic proapoptotic activity against AML blasts without increasing toxicity. In our center, so far we treated relapsed or refractory AML patients using the salvage regimen including GO (3mg/m2/dayx1day) plus attenuated Idarubicin/Cytarabine (Idarubicin 12mg/m2/day for 2 days and intermediate dose Cytarabine). So far, the CR rate from the regimen is around 50% without increasing TRM. Accordingly, we will determine the efficacy and toxicity of Vorinostat-incorporating salvage regimen based on the GO+IA chemotherapy in patients 50 years old or older with relapsed or refractory AML.
The goal of Phase 1 of this clinical research study is to find the highest tolerable dose of lenalidomide that can be given in combination with azacitidine to patients with MDS or AML. The goal of Phase 2 of this study is to learn if the combination dose of azacitidine and lenalidomide found in Phase 1 can help to control MDS and/or AML. The safety of this drug combination will be studied in both Phases.
The current understanding of PR104 justifies the evaluation of PR104 in subjects with relapsed/refractory AML and ALL. These include: - Hypoxia. Leukemic bone marrow is likely to demonstrate a level of hypoxia sufficient to activate PR104 to its active metabolites PR104H and PR104M. - Myelotoxicity as the primary toxicity at MTD. In prior clinical studies in subjects with solid tumors PR104 has demonstrated myelotoxicity as the primary toxicity. This observation suggests that PR104 will exert a similar effect on leukemic cells. - AKR1C3. AML has been reported to exhibit high levels of AKR1C3 which should lead to selective activation of PR104 within both hypoxic and oxic leukemic cells. - Preclinical data. PR104 has demonstrated impressive activity in an initial study using primary human ALL in a mouse model. The initial dose finding phase of the study will provide estimates of the activity and toxicity of PR104 in subjects with refractory/relapsed AML, and determine the optimal individualized dose to give each subject based on his/her covariates (prior CR duration, prior number of salvage therapies, age). Once a potentially beneficial dose has been determined, an expanded cohort of subjects with AML or ALL will receive PR104 at a uniform dose. This information will prove valuable in defining the future clinical development of PR104, and in determining if PR104 has sufficient activity and acceptable safety in AML to warrant future phase II or phase III studies in this indication. Primary objectives - Determine the toxicities and recommended dose of PR104 when administered IV to subjects with relapsed/refractory AML and ALL. Secondary objectives - Evaluate the pharmacokinetics (PK) of PR104 and a series of PR104 metabolites - Evaluate any anti-tumor effects of PR104 - Evaluate the expression of AKR1C3 in bone marrow and leukemic cells - Evaluate potential biomarkers of hypoxia
There is no curative therapy once acute leukemia patients relapse after transplant. Patients who develop clinically significant graft versus host disease (GVHD) have a lower rate of relapse than those who do not develop GVHD. We are initiating this study of post-transplant fast withdrawal of immunosuppression and donor lymphocyte infusions, with a goal of achieving full donor chimerism in children with hematologic malignancies. If our hypothesis that full donor chimerism results in leukemia-free survival is correct, using immune modulation to achieve full donor chimerism should decrease relapse rate and thus increase survival. The goal of this Phase II study is to identify if achieving full donor chimerism in whole blood CD3+ and leukemia-specific (CD14/15+, CD19+, CD33+ and CD34+) subset may decrease the risk of relapse of patients undergoing allogeneic transplant for hematologic malignancy.
The main objective of this study is to assess the biological activity of elacytarabine in combination with idarubicin in patients with acute myeloid leukaemia who has failed the first course of a remission-induction treatment with cytarabine (ara-C). In addition, the correlation between hENT1 (human equilibrative nucleoside transporter 1) and overall survival will be studied.
In adults with acute myeloid leukemia, especially those < 60 years of age, high-dose cytarabine consolidation therapy has been shown to influence survival, but the appropriate dose has not been defined.
This is a single-center, single arm, open-label study of oral lenalidomide monotherapy administered to red blood cell (RBC) transfusion dependent adult subjects with Diamond-Blackfan Anemia (DBA). Primary Objective: To evaluate the erythroid response rate as measured by rate of red blood cell transfusion independence (MDS IWG 2000 Criteria will be applied) Secondary Objective: 1)To evaluate the tolerability and safety profile of lenalidomide in patients with DBA and other inherited marrow failure syndromes 2) To correlate response to lenalidomide with biologic surrogates of DBA including ribosomal protein mutation status, ex vivo erythroid colony growth, and microarray gene expression
This is an open label randomized controlled phase II study of AS1411 combined with Cytarabine in the treatment of patients with primary refractory or relapsed acute myeloid leukemia.