View clinical trials related to Hematological Malignancies.
Filter by:the impact of donor-recipient ABO matching on outcome of peripheral blood stem cell haploidentical hematopoietic stem cell transplantation
This is an open-label, extension protocol designed to allow patients to continue to receive belinostat treatment after they have completed the protocol-specified assessments and procedures in a Spectrum sponsored belinostat study and have not met the criteria for treatment discontinuation in those studies. This extension of belinostat treatment allowance is not a part of the primary efficacy assessments for those trials. The extension is intended to provide all possible benefits to patients who are having a positive response to belinostat and must be under the Investigator's care. The additional treatment is optional and voluntary.
Tenalisib has been evaluated as an investigational new drug in number of early clinical studies in patients with relapsed/refractory hematological malignancies and demonstrated acceptable safety and promising efficacy in these patients. Since these advanced relapsed/refractory patients have limited therapeutic options, it is reasonable to continue Tenalisib in responding patients post completion of their participation in previous clinical studies.
Viral infections remain an important cause of morbidity and mortality after allogeneic stem cell transplantation (SCT), especially after myelo-ablative conditioning and if the donor is antigen-mismatched or haplo-identical.. In the described setting the patient's own immune system has been destroyed by the necessary highly immuno- and myelo-ablative conditioning and all memory against infections has been deleted. Therefore, there is a high risk for several viral infections and other infectious organisms.Both primary viral infections and reactivations can occur, and patients can become refractory to antiviral treatments, or in some cases an adequate antiviral treatment is unavailable or too toxic. In this study, the investigators will target CMV, as refractory CMV infection and disease is accompanied by an extremely high mortality rate and therefore the development of new treatment approaches is required. Despite the available antiviral drugs, a considerable number of patients are facing an insufficient control of CMV reactivation after SCT. Because reconstitution of CMV-specific T cells confer protection against the development of CMV disease after SCT, attempts have been made to restore antiviral immunity by direct infusion of CMV-specific T cells. Most clinical cellular immunotherapy protocols for CMV treatment have used CMV-specific cytotoxic CD8+ T-cell lines generated by repetitive in vitro stimulation with CMV antigens with success. Despite the proven efficacy, use of cellular therapy in the clinic has been limited, because the approach is time and labor consuming and requires specialized facility allowing handling of the therapeutic cells according to good manufacturing practice. In addition, no sustained response was seen after adoptive transfer that involved only cytotoxic CD8+ T cells. This phenomenon is supported by the fact that recall responses to latent infections depend on the presence of CD4+ T cells to help cytotoxic CD8+ T cells. An alternative approach for the transfer of T-cell immunity is the isolation of Ag-specific T cells ex vivo from the blood of CMV seropositive donors, based on interferon γ (IFN-γ) secretion of T cells after in vitro stimulation with viral Ag, resulting in a combination of CD4+ T helper and cytotoxic CD8+ CMV specific T cells. Using this strategy, a short-term ex vivo protocol was developed for the isolation of pp65 (CMV immunodominant protein)-specific T cells. Since then, several centers have used this protocol in the clinic, infusing low numbers of pp65-specific T cells, that were able to restore protective T-cell immunity against CMV in a post SCT setting in patients with refractory CMV disease or viremia. For this protocol the investigators have set up and validated this method of CMV-specific T-cell generation in the Ghent University Hospital and the investigators will make it available for other Belgian transplant centers.
Blastic plasmacytoid dendritic cell neoplasm (BPDCN) is a rare disease characterized by an aggressive clinical behavior and a poor prognosis. It predominantly affects elderly males with an average age of 67 years at diagnosis and the affected organs are usually the skin, bone marrow, lymph nodes and the central nervous system. Patients with BPDCN have poor outcomes with median overall survival (OS) ranging in the largest series of patients from 8 to 12 months. Patient care must be defined in this pathology. Despite 40%-90% complete remission (CR) rates after initial chemotherapy, relapses are almost inevitable. The investigators have developed a national network to collect clinical and biological data of French patients diagnosed with BPDCN.
This protocol is a pilot study on standard care. The main goal is to assess the impact of positioning on lumbar puncture process especially on pain sensitivity in children. It's a prospective, monocentric, randomized, open-label, cross-over study. Inclusion period is one year, and number of inclusions forecasted is about 30. Each patient will have one LP in a seated position and one in a lying position.
Recently, European Medicines Agency approved ibrutinib and idelalisib to treat Chronic Lymphocytic Leukemia (CLL) and two lymphomas: Follicular Lymphoma (FL) for ibrutinib and Mantle cell lymphoma (MCL) for idelalisib. Clinical trials for ibrutinib and idelalisib were performed with a small number of patients (300-350) and showed several side effects profiles. Since, pharmacokinetic properties of these 2 drugs highlight a interindividual variability of pharmacokinetic. The aim of this study is to determine the association between clinically significant side effects occurrence during the first year of treatment and plasma mean concentration of the steady state of ibrutinib or idelalisib at 1 month.
This is a Phase 1, open-label, nonrandomized study to determine the PK profiles of belinostat in patients with relapsed/refractory solid tumors or hematological malignancies who have heterozygous and homozygous UGT1A1*28 genotypes and wild-type UGT1A1 gene. Enrolled patients will be assigned to 1 of 3 cohorts (A, B, or C) based on their UGT1A1 genotype
The purpose of this study is to evaluate whether fostamatinib, a drug that blocks activated B cells will be effective in preventing and treating chronic graft vs host disease (cGVHD) after allogeneic stem cell transplant. Activated B cells may play a role in development of cGVHD. Inhibiting the B cell activation using fostamatinib after allogeneic stem cell transplant may prevent the development of cGVHD.
Allogeneic stem cell transplantation (allo-SCT) is a potent treatment, and sometimes the only curative treatment for aggressive hematological malignancies. The therapeutic efficacy is attributed to the graft-versus-tumor (GVT) response, during which donor-derived CD8+ T cells become activated by recipient minor histocompatibility antigens (MiHA) presented on dendritic cells (DC). Consequently, these alloreactive donor T cells clonally expand, acquire effector functions and kill MiHA-positive malignant cells. However, in a substantial number of patients persistence and recurrence of malignant disease is observed, indicating that insufficient GVT immunity is induced. This is reflected by our observation that not all patients develop a productive CD8+ T cell response towards MiHA mismatched between the recipient and donor. We found that the PD-1/PD-L1 co-inhibitory pathway is involved in dampening MiHA-specific CD8+ T cell expansion and function post-transplantation. Therefore, a promising strategy to induce or boost GVT immune responses is pre-emptive or therapeutic vaccination with ex vivo-generated donor DCs loaded with MiHA that are exclusively expressed by recipient hematopoietic cells and their malignant counterparts. In contrast to pre-emptive donor lymphocyte infusion (DLI) with polyclonal donor T cells, this MiHA-DC vaccination approach has less risk of inducing graft-versus-host disease (GVHD) and the potency to induce more efficient GVT-associated T cell immunity. In addition, the potency of this DC vaccine will be further enhanced by interference with the PD-1/PD-L1 co-inhibitory pathway, using siRNA mediated PD-L1/PD-L2 silencing.