View clinical trials related to Leukemia.
Filter by:This study aims to evaluate the safety and clinical activity of CD19 Chimeric Antigen Receptor (CAR) redirected autologous T-cells in treating patients with recurrent or refractory CD19 positive B cell ccute lymphoblastic leukemia,and dynamically observe the changes of CAR-T in patients and the residual tumor.
Allogeneic hematopoietic stem cell transplantation (Allo-HSCT) is a curative option for patients with acute myeloid leukemia (AML). However, transplantation related toxicity and mortality as well as the existence of HLA identical sibling donor represent major limitations. Over the 20 past years, the development of reduced intensity conditioning (RIC) regimen and the use of alternative donors allowed extending the possibility of Allo-HSCT for AML, with decreased toxicity and mortality. This invited to propose this strategy to more advanced patients, making that AML recurrence has become one of the main issues after Allo-HSCT. Thus, to develop prophylactic and preemptive strategies to minimize disease recurrence after Allo-HSCT is now the main challenge in the field. Among cellular and/or pharmacological treatments after Allo-HSCT, donor lymphocyte infusion (DLI) is probably one of the most commonly used treatments after Allo-HSCT. Indeed, DLI were reported as a potential efficient immunotherapy more than 20 years ago for the treatment of patients with leukemia relapsing after Allo-HSCT. However, most of experiences were reported in the setting of relapse after Allo-HSCT and no prospective evaluation of prophylactic DLI is available so far. Thus no strong recommendation for the use of DLI after Allo-HSCT can be made. Our study proposal would like to assess the question of prophylactic DLI efficacy, as a proof of concept of early immune intervention after Allo-HSCT. The investigators, therefore, designed a prospective multicenter randomized trial evaluating the impact of early DLI on outcome after Allo-HSCT for AML.
The purpose of this clinical trial is to identify 50 participants with Chronic Lymphocytic Leukemia (CLL) and follow their total white blood cell (WBC) counts and absolute lymphocyte counts after performing dermal chelation and administering nutritional therapy
This is a prospective,uncontrolled and multi-institution trial.The aim is to identify if using decitabine,cytarabine and ATO as the therapy of acute myeloid leukemia(AML) with p53 mutations has better relapse free survival and complete response than using decitabine and cytarabine. TP53 mutation is commonly associated with poor cancer patient prognosis yet no mutant p53 (mp53)-targeting regimen was clinically established. Particularly, p53 mutation is associated with extremely poor prognosis in myelodysplastic syndromes (MDS) and acute myeloid leukemia (AML) patients. Decitabine (DAC) is a FDA approved drug for MDS treatment. In two independent clinical trials reported recently, DNA demethylating drug DAC treatment yielded a surprisingly high rate of complete remission (CR) in mp53-harboring AML/MDS patients (Welch, NEJM, 2016; Chang, BJH, 2017). Notably, all of the mp53-expressing patients in the two clinical studies relapsed quickly. Arsenic trioxide (ATO) is a FDA approved drug for M3-AML treatment. Despite of the observed efficacy in treating non-APL patients, ATO is not yet approved for non-APL cancer treatment. ATO plays key role in regulating both wild-type p53 (wtp53) and mp53. Our published and unpublished data suggest ATO potentially hijacks nuclear iASPP-mediated STRaND pathway via exposing iASPP's RaDAR nuclear import code (Lu, Cancer Cell, 2013; Lu, Cell, 2014; Lu, Nat Rev Mol Cell Biol, 2016; Lu, unpublished). Our unpublished data also suggests a key role of ATO in regulating mp53 (Lu, The 17th International p53 Workshop, 2017). ATO is widely reported to be able to degrade and thus inhibit mp53's oncogenic function (Hamadeh, BBRC, 1999)(Liu, Blood, 2003). ATO suppressed cancer cell growth by targeting mp53 for degradation by Pirh2 degradation pathway (Yang, JBC, 2011; Yan, PLOS one, 2014); Here we explore the potential of combination of DAC and ATO in improving the mp53-harboring AML/MDS patients' relapse free survival (RFS) and the ability to thoroughly eliminate mp53 subclone. Basic researches aiming to explore the mechanisms how mp53 cells responds to DAC and/or ATO treatment and how mp53 cells develop resistance to DAC and/or ATO will be coupled. We designate trials aiming for a better treatment regimen for mp53 patients as 'PANDA-Trials'.
Patients with CML report on fatigue, and many of them report on sleep disturbances. The investigators wish to objectively assess the patient's sleep using a sleep "wrist watch" (Actigraph) , and correlate data with their perception of sleep quality. A matched participants group will serve as control. the Control group is defined as participants not having CML or any other malignancy and without any known sleep disturbances.
Precursor-B acute lymphoblastic leukemia (ALL) is the most common cancer in childhood. Despite major advances in ALL therapy, 20% of children and 40-50% of adults fail state-of-the art first-line treatment. But there is a strong need for alternative treatments to cure chemotherapy-refractory and relapsed B cell malignancies in pediatric patients. Relapsed and refractory B cell malignancies remain a therapeutic challenge, as these diseases are characterized by adverse survival. These cancers share a cell origin from the B-cell lineage and consequent surface expression of B-lineage markers such as CD19 and CD22. Chimeric antigen receptor (CAR) engineered T cell therapy has recently emerged as a new modality to target B cell malignancies. CARs couple a single-chain Fv (scFv) domain directed against a B-lineage-specific antigen to T-cell activating intracellular signaling domains. CAR gene-modified T cell interaction with target cells occurs in a HLA-independent fashion, so that a single vector can be used to treat all patients with cancers that express the target antigen. Miltenyi Biotec has established a semi-automated manufacturing process that can be made available to academic settings for systematic exploration of CAR strategies in advanced clinical studies. Closed-system operation, improved robustness, simplified work flows, and reduced labor intensity, while maintaining strict adherence to regulatory guidelines, allows for decentralized manufacturing. In the proposed phase II study, the investigator will explore autologous 2nd generation CD19 CAR T cell products in patients with relapsed and refractory disease incurable with standard therapies.
The purpose of this study is to evaluate the safety, efficacy and blood kinetics of autologous T cells genetically modified to express CD19 Chimeric Antigen Receptor and PD-1 knockout engineered T cells in patients with relapsed or refractory B-Cell Non-Hodgkin Lymphoma and Leukaemia.
1. Detect the expression of marker CD56 and CD11b in newly diagnosed cases of adult AML. 2. Study correlation between CD56 and CD11b expression with haematological parameters in cases of adult AML.
Acute leukaemias (AL) are the first cause of cancer in children, with a majority of B acute lymphoblastic leukemia (ALL). Some of the processes causing leukemogenesis are already identified and well characterized in some AL subtypes such as translocation t (12; 21) of good prognosis in ALL. However, translocations are not sufficient to explain all the different processes of leukemogenesis, and other processes such as genetic / epigenetic mutations leading to oncogene activation / inhibition of tumor suppressor genes are the object research. Among the latter, mutations in tumor suppressor genes such as DCC (Deleted in Colorectal Cancer) have recently been identified in solid cancers, such as in hemopathies. This gene was subsequently characterized as encoding a "dependence receptor" specifically binding to its Netrin-1 ligand. Dependence receptors (RDs) are transmembrane receptors that cause cell death in the absence of their ligand. RD decreases tumor progression and overexpression of their ligands is observed in many cancers, such as B lymphomatous hemopathies in adults. Inhibition of the RD-ligand interaction constitutes a new and original therapeutic target in oncology. The aim of this study is to investigate whether RDs, in particular DCC, are expressed in acute leukemia cells at the time of diagnosis or relapse in patients aged 1 to 18 years, and then in these patients at the time of the remission balance. This research will be both qualitative and quantitative.
This study aims to evaluate the safety, efficacy and duration of response of anti-CD19 anti-CD20 Bispecific Chimeric Antigen Receptor (CAR) redirected autologous T-cells in patients with high risk, relapsed CD19+ and CD20+ haematological malignancies.