Active clinical trials for "Myelodysplastic Syndromes"

The purpose of this study is to evaluate the efficacy, in terms of hematologic improvement, and safety of imetelstat in participants with high-risk (HR) myelodysplastic syndrome (MDS) or acute myeloid leukemia (AML) that is relapsed/refractory to hypomethylating agents (HMAs) treatment. Responding patients are eligible to continue treatment until loss of response/disease progression.

Gentulizumab Injection is an anti-CD47 monoclonal antibody. As a member of the immunoglobulin superfamily, CD47 is expressed at low levels on many cells of the body, including hematopoietic cells (red blood cells, lymphocytes, platelets, etc.) and non-hematopoietic cells (placenta, liver and brain cells). It is overexpressed on many types of tumors. There is abundant supportive evidence that the expression of CD47 on tumor cells, though binding to SIRP on professional phagocytes, acts to prevent tumor cell phagocytosis, inhibit antigen cross-presentation, and block the production of pro-inflammatory molecules, thus promoting the development of a "cold" tumor microenvironment. Blocking CD47 can not only stimulate phagocytosis to cancer cells, but also promote macrophage recruitment towards neoplasm. At the same time, blocking CD47 can stimulate macrophages to secrete cytokines. These cytokines and chemokines can further recruit other immune cells to neoplasms. These newly recruited immune cells can provide a positive feedback and enhance the therapeutic response of blocking CD47. Therefore, the CD47/SIRPα axis blocking appears to be a potential therapeutic target for neoplasm. Currently, no anti-CD47 antibody product has been granted marketing authorization for progressive hematological malignancies. Whereas Hu5F9-G4, a CD47 monoclonal antibody, is being tested in a series of ongoing clinical trials for AML, MDS, lymphomas and multiple solid tumors. The clinical research was designed based on non-clinical data and relevant experience of other CD47 monoclonal antibody. In this phase Ia study, "3 + 3" dose escalation method combined with rapid titration will be used to evaluate the dose limiting (DLT) toxicity of each dose group, evaluate the safety and tolerance of Gentulizumab in the treatment of patients with progressive hematological malignancies, and determine the maximum tolerated dose (MTD) and phase II recommended dose (RP2D); At the same time, the pharmacokinetics (PK), pharmacodynamics (PD), immunogenicity, preliminary efficacy and biomarkers of gentulizumab will be evaluated to provide sufficient basis for new drug application (NDA) guidance and further clinical use.

This study will compare the safety and efficacy between patients receiving an engineered donor graft ("Orca-T", a T-cell-Depleted Graft With Additional Infusion of Conventional T Cells and Regulatory T Cells) or standard-of-care (SOC) control in participants undergoing myeloablative allogeneic hematopoietic cell transplant transplantation (MA-alloHCT) for hematologic malignancies. This posting represents the Phase III component of Precision-T. The Precision-T Ph1b component is described under NCT04013685.

SL03-Old Hundred(OHD)-104 is designed as a Phase 1a/1b open label, trial to evaluate the safety, pharmacokinetics (PK), pharmacodynamic (PD), and preliminary efficacy of SL-172154 monotherapy as well as in combination with azacitidine or in combination with Azacitidine and Venetoclax.

Gamma delta T-cells are part of the innate immune system with the ability to recognize malignant cells and kill them. This study uses gamma delta T-cells to maximize the anti-tumor response and minimize graft versus host disease (GVHD) in leukemic and myelodysplastic patients who have had a partially mismatched bone marrow transplant (haploidentical).

This phase I trial studies the safety of transplantation with a haploidentical donor peripheral blood stem cell graft depleted of TCRαβ+ cells and CD19+ cells in conjunction with the immunomodulating drug, Zoledronate, given in the post-transplant period to treat pediatric patients with relapsed or refractory hematologic malignancies or high risk solid tumors.

The study examines the application of expanded natural killer cells (NK cells) following haploidentical allogeneic hematopoietic stem cell transplantation (haplo-HSCT) for AML or MDS. Haplo-HSCT is a preferred treatment option for patients with AML or MDS without a HLA-matched donor. With administration of cyclophosphamide post-transplant , the safety of the procedure is similar to a HSCT from a HLA-identical donor. Relapse of AML/MDS represents a serious problem following haplo-HSCT. NK cells are immune cells able to destroy tumor cells. Their potency has been established particularly in the setting of a haplo-HSCT. In the current study, study participants undergoing haplo-HSCT will receive expanded NK cells from their respective stem-cell donors following haplo-HSCT. The primary goal of the study is to establish the safety and feasibility of this approach. In addition, the activity of the NK cells will be examined.

Patients with low-risk MDS verifying the eligibility criteria may be included in the study.

Background: Severe aplastic anemia (SAA) and myelodysplastic syndrome (MDS) are bone marrow diseases. People with these diseases usually need a bone marrow transplant. Researchers are testing ways to make stem cell transplant safer and more effective. Objective: To test if treating people with SAA or MDS with a co-infusion of blood stem cells from a family member and cord blood stem cells from an unrelated donor is safe and effective. Eligibility: Recipients ages 4-60 with SAA or MDS Donors ages 4-75 Design: Recipients will be screened with: Blood, lung, and heart tests Bone marrow biopsy CT scan Recipients will have an IV line placed into a vein in the neck. Starting 11 days before the transplant they will have several chemotherapy infusions and 1 30-minute radiation dose. Recipients will get the donor cells through the IV line. They will stay in the hospital 3-4 weeks. After discharge, they will have visits: First 3-4 months: 1-2 times weekly Then every 6 months for 5 years<TAB> Donors will be screened with: Physical exam Medical history Blood tests Donors veins will be checked for suitability for stem cell collection. They may need an IV line to be placed in a thigh vein. Donors will get filgrastim injections daily for 5-7 days. On the last day, they will have apheresis: Blood drawn from one arm or leg runs through a machine and into the other arm or leg. This may be repeated 2 days or 2-4 weeks later.

This phase Ib/II trial studies the best dose and side effects of venetoclax and how well it works when given with combination chemotherapy in treating patients with newly diagnosed acute myeloid leukemia or acute myeloid leukemia that has come back or does not respond to treatment. Venetoclax may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth. Drugs used in chemotherapy, such as fludarabine, cytarabine, filgrastim and idarubicin, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Giving venetoclax together with combination chemotherapy may work better in treating patients with acute myeloid leukemia.