Active clinical trials for "Hemoglobinopathies"

The hypothesis for this study is that a preparative regimen that maximizes host immunosuppression without myeloablation will be well tolerated and sufficient for engraftment of donor hematopoietic cells. It is also to determine major toxicities from these conditioning regimens, within the first 100 days after transplantation.

This is a study to collect the outcomes of stem cell transplantation for patients with hematologic diseases other than cancer.

The investigators aims to evaluate the safety of in utero hematopoietic stem cell transplantation in fetuses with alpha-thalassemia major performed at the time of in utero transfusion of red blood cells.

Allogeneic haematopoietic stem cell transplantation (aHSCT) is the only curative treatment for many paediatric and young adult haematological pathologies (acute leukaemia, myelodysplastic syndromes haemoglobinopathies, bone narrow aplasia, severe combined immunodeficiency). Despite the major therapeutic progress made over the last 50 years, particularly in terms of supportive care, post-transplant morbidity and mortality remain high. Infectious complications, whose incidence varies between 30 and 60%, are the first cause of mortality in the immediate post-transplant period. In order to protect the patient from the occurence of severe infectious episodes, aHSCT must be performed in a highly protected environment (positive pressure chambers). This has consequences for the experience and impact of hospitalization on the patient and family. This is particularly true in pediatrics, with children, adolescents or young adults, where it is not only the patient's quality of life that is at stake, but also his emotional and psychomotor development. In this specific population, prolonged hospitalization (at least 6 weeks) in a sterile room will be responsible for physical deconditioning accompanied by a decrease in muscle mass. Patients often experience an deteriorated quality of life. Today, the benefits of physical activity (PA) during and after cancer treatment have been widely demonstrated. The objective of the study is to assess the feasibility of an adapted physical activity program during the isolation phase for achieving aHSCT in children, adolescents and young adults. This is a prospective, interventional, monocentric cohort study conducted at the institute of Paediatric Haematology and Oncology in Lyon. The intervention will take place during the isolation phase and will be based on an adapted physical activity (APA) program defined at inclusion, integrating supervised sessions with an APA teacher, as well as autonomous sessions performed by means of a connected bike in the sterile room. The program will be individualized according to age, aerobic capacities, and PA preferences. Sessions will also be tailored to the biological, psychological, and social parameters of patients. The total duration of the intervention is 3 months. To date, no PA studies have been performed in patients under 21 years old requiring aHSCT during the sterile isolation phase. EVAADE will therefore be the first study in this population to offer an innovative procedure with a connected device.

This study will evaluate pediatric patients with malignant or non-malignant blood cell disorders who are having a blood stem cell transplant depleted of T cell receptor (TCR) alfa and beta cells that comes from a partially matched family donor. The study will assess whether immune cells, called T cells, from the family donor, that are specially grown in the laboratory and given back to the patient along with the stem cell transplant can help the immune system recover faster after transplant. As a safety measure these T cells have been programmed with a self-destruct switch so that they can be destroyed if they start to react against tissues (graft versus host disease).

This is a single-arm, open-label, multi-site, single-dose Phase 1/2/3 study in subjects with severe sickle cell disease (SCD). The study will evaluate the safety and efficacy of autologous CRISPR-Cas9 Modified CD34+ Human Hematopoietic Stem and Progenitor Cells (hHSPCs) using CTX001.

This is a single-arm, open-label, multi-site, single-dose Phase 1/2/3 study in subjects with transfusion-dependent β-thalassemia (TDT). The study will evaluate the safety and efficacy of autologous CRISPR-Cas9 Modified CD34+ Human Hematopoietic Stem and Progenitor Cells (hHSPCs) using CTX001.

Blood stem cells can produce red blood cells (which carry oxygen), white blood cells of the immune system (which fight infections) and platelets (which help the blood clot). Patients with sickle cell disease produce abnormal red blood cells. A blood stem cell transplant from a donor is a treatment option for patients with severe sickle cell disease. The donor can be healthy or have the sickle cell trait. The blood stem cell transplant will be given to the patient as an intravenous infusion (IV). The donor blood stem cells will then make normal red blood cells - as well as other types of blood cells - in the patient. When blood cells from two people co-exist in the patient, this is called mixed chimerism. Most children are successfully treated with blood stem cells from a sibling (brother/sister) who completely shares their tissue type (full-matched donor). However, transplant is not an option for patients who (1) have serious medical problems, and/or (2) do not have a full-matched donor. Most patients will have a relative who shares half of their tissue type (e.g. parent, child, and brother/sister) and can be a donor (half-matched or haploidentical donor). Adult patients with severe sickle cell disease were successfully treated with a half-matched transplant in a clinical study. Researchers would like to make half-matched transplant an option for more patients by (1) improving transplant success and (2) reducing transplanted-related complications. This research transplant is being tested in this Pilot study for the first time. It is different from a standard transplant because: Half-matched related donors will be used, and A new combination of drugs (chemotherapy) that does not completely wipe out the bone marrow cells (non-myeloablative treatment) will be used to prepare the patient for transplant, and Most of the donor CD4+ T cells (a type of immune cells) will be removed (depleted) before giving the blood stem cell transplant to the patient to improve transplant outcomes. It is hoped that the research transplant: Will reverse sickle cell disease and improve patient quality of life, Will reduce side effects and help the patient recover faster from the transplant, Help the patient keep the transplant longer and Reduce serious transplant-related complications.

The aim of the trial is to describe the safety and efficacy of intravenous (i.v.) Treosulfan compared to the conventional (myeloablative) dose of i.v. Busulfan, each administered as part of a standardised Fludarabine-containing conditioning regimen and to contribute to a PK model which permits - in conjunction with data comparing Treosulfan and Busulfan in adults with malignant diseases - to extend the use of Treosulfan in the paediatric population by extrapolating efficacy.

The purpose of this study is to determine a safe dose of BPX-501 gene modified T cells infused after a haplo-identical stem cell transplant to facilitate engraftment and the safety of Rimiducid (AP1903) on day 7 to prevent GVHD.