Active clinical trials for "Hematologic Neoplasms"

Hematologic malignancy patients are admitted to ICU in increasing numbers. Successful ICU intervention has led to an increasing number of ICU survivors; however, there is a lack of information available about these patients' long term survival and quality of life. There is little Canadian data regarding ICU survival and regarding 1-year survival and functional outcomes in this group of patients. Over 500 patients are admitted annually to Canadian ICUs with an underlying hematologic malignancy or stem cell transplant, yet there is a paucity of up to date long-term outcome data. This information will facilitate a better understanding who would best benefit from critical care interventions and the impact of critical illness on their level of function at 1 year as well as survival.

Prospective observational multicenter study of allogeneic Hematopoietic Stem Cell Transplantation (HCT) in recipients 60 years and older to assess important determinants of health status to be combined into a composite health risk model to improve risk assessment of non-relapse mortality (NRM).

The goal of this prospective study is to assess the overall mortality (whether related to relapse/progression or toxicity - TRM-) at one year after allogeneic stem cell transplantation prepared by a so-called reduced-toxicity "submyeloablative" conditioning regimen in patients with hematological malignancies.

This is a four-part dose-escalation and confirmation study in participants with advanced solid tumors. Part A is for dose escalation and determination of maximum tolerated dose (MTD) and recommended Phase 2 dose (RP2D) of MK-4827. Part B is a prostate/ovarian cancer cohort expansion. Part C is for a cohort of participants with relapsed or refractory T-cell prolymphocytic leukemia (T-PLL) or chronic lymphocytic leukemia (CLL). Part D will be for a cohort of participants with locally advanced or metastatic colorectal carcinoma (CRC), persistent or recurrent endometrial carcinoma, locally advanced or metastatic triple negative or highly proliferative estrogen receptor positive (ER+) breast cancer, or partially platinum-sensitive epithelial ovarian cancer. The study is also designed to find out whether MK-4827 causes at least 50% inhibition of poly adenosine diphosphate ribose polymerase (PARP) enzyme activity.

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.

Defects in the apoptotic process can lead to the onset of cancer by allowing cells to grow unchecked when an oncogneic signal is present. Obatoclax is designed to restore apoptosis through inhibition of the Bcl-2 family of proteins, thereby reinstating the natural process of cell death that is often inhibited in cancer cells.

The hypothesis of the study is double unit umbilical cord blood transplantation in adults will be associated with a one year survival rate of at least 40%.

The purpose of this study is to determine if peripheral blood cells collected following AMD3100 mobilization can be used safely for hematopoietic cell transplantation into HLA-matched recipients.

Recent studies of conventional chemotherapy for infants with high-risk hematologic malignancies show that the long-term disease-free survival is low. Although blood and marrow stem cell transplantation using an HLA identical sibling has improved the outcome for these children, less than 25% have this donor source available. Another option is haploidentical transplantation using a partially matched family member donor (i.e. parental donor). Although haploidentical transplantation has proven curative for some patients, this procedure has been hindered by significant complications, primarily regimen-related toxicity including infection and graft versus host disease (GVHD). Building on prior institutional trials, this study will provide patients a haploidentical graft depleted of T lymphocytes using the investigational device, CliniMACS selection system. One week after the transplant procedure, patients will also receive an infusion of additional donor derived white blood cells called Natural Killer (NK) cells in an effort to decrease risks for rejection of the graft, disease relapse, and regimen related toxicity. The primary objective of the study is to evaluate 1 year survival in infants with high risk hematologic malignancies who receive this study treatment.

Many patients with hematological malignancies potentially curable by bone marrow transplantation are not considered for transplantation because an HLA identical family or unrelated donor is unavailable. For these patients the only curative option is a transplant from a partially matched family donor. Such transplants are feasible but are less successful than matched sibling donor transplants. The main problems with mismatched transplants are graft rejection, graft-vs-host disease, and regimen-related mortality. This restricts the use of mismatched transplants to patients less than 45 years at high risk of dying from the hematological malignancy. This protocol evaluates a new preparative regimen designed to ensure stem cell engraftment by increased immunosuppression, followed by a G-CSF mobilized T cell depleted, stem cell rich, peripheral blood progenitor cell (PBPC) transplant from a mismatched related donor in patients with high risk hematological malignancies. This phase I study evaluates engraftment and GVHD following T cell depleted, HLA-mismatched PBPC transplants. Stopping rules will be used to make modifications to the protocol in the event of graft failure. The end points of the study are graft take, acute and chronic GVHD, leukemic relapse, transplant-related mortality, death and leukemia-free survival. Patients will be followed up for 5 years. It is planned to treat up to 35 patients aged between 10 and 45 years.