Active clinical trials for "Leukemia, B-Cell"

This is a single arm study to evaluate the efficacy and safety of CD19-targeted CAR-T cells therapy for patients with relapsed/refractory CD19+ B Cell Leukemia and Lymphoma.

Multicenter, open-label, prospective treatment protocol that provides continued access to ibrutinib to subjects who have completed parent ibrutinib studies, are still benefitting from treatment with ibrutinib, and have no access to commercial ibrutinib for their underlying disease within their region.

Patients with relapsed leukemia often develop resistance to chemotherapy. For this reason, we are attempting to use a patient's own T cells, which can be genetically modified to expresses a chimeric antigen receptor(CAR). The CAR enables the T cell to recognize and kill the leukemic cells though the recognition of CD19, a protein expressed on the surface of the majority of pediatric ALL. This is a phase I study designed to determine the maximum tolerated dose of the CAR+ T cells and define the toxicity of the treatment. As a secondary aim, we will be looking at the efficacy of the T cells on eradicating the patient's leukemic cells.

A single arm, open-label pilot study is designed to determine the safety, efficacy and cytokinetics of CAR T cells in patients with malignant tumors with positive antigen targets. CAR T cells are genetically engineered to express single-chain variable fragment (scFv) targeting indication-specific antigens. The investigational CAR T cells and proposed indications are as follows: CAR-CD19 T cells for B cell leukaemia/lymphoma; CAR-BCMA T cells for myeloma; CAR-GPC3 T cell for hepatocellular carcinoma; CAR-CLD18 T cells for pancreatic carcinoma and adenocarcinoma of esophagogastric junction.

Background: Allogeneic hematopoietic stem cell transplantation (alloHSCT) is a procedure that transplants bone marrow cells (stem cells) from a matching donor into a recipient in order to allow the donor stem cells to produce cells that will attack the recipient s cancer cells. AlloHSCT is performed when chemotherapy, immunotherapy, or radiation therapy do not adequately control cancer growth. However, cancers that are not controlled by alloHSCT frequently become resistant to other standard treatment options. The outcomes of alloHSCT might be improved if certain kinds of white blood cells (T cells) could be manipulated so that they generate a more potent effect against the cancer cells. This effect can be augmented by genetically engineering donor T cells to specifically recognize cancerous cells in order to attack them. For this purpose, researchers are studying a specific kind of genetically engineered T cell known as the anti-CD19-CAR-transduced T cell. More research is needed to determine if this T cell will be an effective treatment for certain kinds of B cell cancer (such as non-Hodgkin s lymphoma and chronic lymphocytic leukemia) that has not been controlled with alloHSCT. Objectives: - To assess the safety and effectiveness of administering allogeneic anti-CD19-CAR-transduced T cells to patients with B-cell cancer that has not responded to alloHSCT. Eligibility: Individuals between 18 and 75 years of age who have received allogeneic hematopoietic stem cell transplantation for a B cell cancer, but whose cancer has either not responded to or recurred after the transplant. Recipients must have the same stem cell donor from their previous procedure. Design: Before the start of the study, all participants will be screened with a medical history and blood tests. Recipients will have tumor imaging scans, additional blood tests, and other tests as directed by the study doctors. Donor participants will undergo apheresis to provide white blood cells for researchers to use in the treatment. Recipients will have dose escalation to determine the most effective yet safe dose of anti-CD19 T cells. There will be six dose levels of anti-CD19 T cells. The first patients enrolled will have the smallest dose, and the dose will be increased when a level has been determined to be safe. . Recipients will be hospitalized for at least 9 days after receiving the cell infusion, and will need to come to clinic for follow-up visits 2, 4, 8, and 12 weeks after the infusion. Additional scans and frequent blood tests will be required for the first 3 months after the infusion, followed by less frequent visits over time. Recipients will be followed for a maximum of 15 years after receiving the infusion.

This is a single center, open-label, 3+3 dose escalation, phase 1 study to evaluate the efficacy and safety of ET019003-T cells therapy for patients with relapsed/refractory CD19+ acute lymphoblastic leukemia and lymphoma.

Background: Chronic lymphocytic leukemia and small lymphocytic lymphoma (hereby referred as CLL) are tumors of B cells. A subset of patients categorized as high-risk CLL has a poor clinical outcome when treated with conventional chemotherapy. This single-arm, phase II study investigates the combination of ibrutinib, fludarabine and pembrolizumab for treatment of CLL. Ibrutinib is an orally administered therapy for CLL. Fludarabine is a well-tolerated drug that has been widely used to treat CLL. Also, fludarabine can modulate CLL cells as well as immune cells that support the growth of CLL cells. Pembrolizumab recruits immune cells to attack CLL cells. With this approach we hope to achieve a greater reduction in CLL cells than with single agent ibrutinib and to restore healthier immune system that could contribute to durable responses. Objective: To investigate the rate of complete response to ibrutinib, short course fludarabine and pembrolizumab. Eligibility: Patients with active CLL meeting treatment indications defined by 2008 International Workshop on CLL (IWCLL) consensus guideline. High-risk CLL defined by one of the following: Relapsed/refractory disease status, or Presence of high-risk mutations regardless of prior treatment status: deletion 17p, TP53 mutation, NOTCH1 mutation, SF3B1 mutation, MYC aberration, or complex cytogenetics. Design: This is a single-arm, open-label phase II study. Timeline: Treatment on this study is given in cycles from cycle -3 to 17, then in months beyond cycle 17. Cycles -3 to -1 are 28-day cycles. Cycles 1 to 17 are 21-day cycles. After completion of 1 year of pembrolizumab, the time on study is by chronological months on study from starting pembrolizumab. Treatment plan: Ibrutinib is given starting from cycle -3 and continuously until disease progression or intolerable side effects occur. Fludarabine is given on D1-D5 on cycle -2 only Pembrolizumab is given every 3 weeks starting from cycle 1 for 1 year. Minimal residual disease will be measured at 2 years from cycle 1 to determine the need for long- term treatment with ibrutinib. Previously-untreated patients who achieve minimal residual disease negativity will stop ibrutinib. Patients who do not achieve minimal residual disease negativity or who has Relapsed/refractory CLL will continue ibrutinib.

This study aims to evaluate the safety, efficacy and duration of response of CD19 Chimeric Antigen Receptor (CAR) redirected autologous T-cells in patients with high risk, relapsed CD19+ haematological malignancies.

This study aims to evaluate the safety and efficacy of humanized Anti-CD19 Chimeric Antigen Receptor-T cell (CAR19T2 T cell) in children with refractory/relapsed B-cell acute lymphoblastic leukemia/lymphoma.

This pilot study examines the safety and efficacy of anti-CD19 CAR T cells manufactured on-site in children and young adults with relapsed or refractory CD19+ B cell acute lymphoblastic leukemia or CD19+ B cell non Hodgkin lymphoma. Patients will undergo screening, leukapheresis (cell collection), lymphodepleting chemotherapy with fludarabine and cyclophosphamide, followed by the anti-CD19 CAR T cell infusion. The lymphodepleting chemotherapy is administered over four days IV to prepare the body for the CAR T cells. The anti-CD19 CAR-T cells are infused between 2-14 days after the last dose of chemotherapy. This study is designed for participants to begin lymphodepleting chemotherapy during the CAR T cell manufacture and receive a fresh cell infusion on the day that manufacturing is complete. Some patients may need more time in between the cell collection and the CAR T cell infusion, therefore, the cells may be manufactured and frozen prior to administration. Patients will be followed for a year after the cell infusion on the study and for up to 15 years to monitor for potential long term side effects of cell therapy.