Active clinical trials for "Anemia, Aplastic"

This is a multicenter, single-arm clinical study. The objective was to evaluate the efficacy and safety of CSA in combination with Avatrombopag in elderly patients with very/sever aplastic anemia treated for the first time. The design was: cyclosporine 3 mg/kg orally in two divided doses, with cyclosporine trough concentrations maintained at 200-250 ng/ml for 3 months to achieve maximum efficacy, and Avatrombopag, which was administered in two dose groups, 40 mg orally once daily and 60 mg orally once daily, for a total of 24 weeks. Forty patients are expected to be enrolled in each dose group, and a total of 80 patients are expected to be enrolled if both dose groups are conducted. Evaluation endpoint: OR rate at 24 weeks of treatment.

Background: People with severe aplastic anemia (SAA) do not make enough red and white blood cells, and/or platelets. Their body's immune system stops the bone marrow from making these cells. The treatment cyclosporine leads to better blood counts. But when this treatment is stopped, the disease may return in 1 in 3 people. The drug sirolimus may help by suppressing the immune system. Objective: To evaluate and compare the usefulness of sirolimus in preventing aplastic anemia from returning after cyclosporine is stopped, compared with stopping cyclosporine alone. Eligibility: People ages 2 and older with SAA who: Have responded to immunosuppressive therapy that includes cyclosporine, and continue to take cyclosporine Are not taking drugs with hematologic effects Design: Participants will be screened with: Medical history Physical exam Blood and urine tests Bone marrow biopsy: The area above the hipbone will be numbed. A thin needle will remove some bone marrow. Participants will be randomly assigned to a group. All will stop cyclosporine. Group 1 will take sirolimus by mouth at the same time each day for 3 months with close monitoring. Group 2 will not receive the study drug but will be monitored closely. Participants will have clinical tests for the first 3 months: Weekly blood test Monthly fasting blood test For group 1, measurements of sirolimus in the blood every 1 2 weeks Participants will have clinic visits at 3 months, 12 months, and annually for 5 years after the study starts. They may have another visit if their SAA returns. These will include: Blood and urine tests Bone marrow biopsy

This phase I/II trial studies how well cytokine-treated veto cells work in treating patients with hematologic malignancies following stem cell transplant. Giving chemotherapy and total-body irradiation before a stem cell transplant helps stop the growth of cells in the bone marrow, including normal blood-forming cells (stem cells) and cancer cells. When the healthy stem cells from a donor are infused into the patient, they may help the patient's bone marrow make stem cells, red blood cells, white blood cells, and platelets. Cytokine-treated veto cells may help the transplanted donor cells to develop and grow in recipients without causing graft-versus-host-disease (GVHD - when transplanted donor tissue attacks the tissues of the recipient's body).

The primary objective of this study is to assess the safety and tolerability of REGN7257 in patients with immunosuppressive therapy (IST)-refractory or IST-relapsed severe aplastic anemia (SAA). An additional primary objective (for Part B only) is to evaluate the clinical efficacy of REGN7257 in patients with IST-refractory or IST-relapsed SAA. The secondary objectives of this study are to assess the following for REGN7257: Clinical response over time Maintenance of response Impact on transfusion requirements Effect on blood counts and cell populations Pharmacokinetics (PK) Immunogenicity

Background: Severe aplastic anemia (SAA), and myelodysplastic syndrome (MDS), and paroxysmal nocturnal hemoglobinuria (PNH) cause serious blood problems. Stem cell transplants using bone marrow or blood plus chemotherapy can help. Researchers want to see if using peripheral blood stem cells (PBSCs) rather than bone marrow cells works too. PBSCs are easier to collect and have more cells that help transplants. Objectives: To see how safely and effectively SAA, MDS and PNH are treated using peripheral blood hematopoietic stem cells from a family member plus chemotherapy. Eligibility: Recipients ages 4-55 with SAA, MDS or PNH and their relative donors ages 4-75 Design: Recipients will have: Blood, urine, heart, and lung tests Scans Bone marrow sample Recipients will need a caregiver for several months. They may make fertility plans and a power of attorney. Donors will have blood and tissue tests, then injections to boost stem cells for 5-7 days. Donors will have blood collected from a tube in an arm or leg vein. A machine will separate stem cells and maybe white blood cells. The rest of the blood will be returned into the other arm or leg. In the hospital for about 1 month, recipients will have: Central line inserted in the neck or chest Medicines for side effects Chemotherapy over 8 days and radiation 1 time Stem cell transplant over 4 hours Up to 6 months after transplant, recipients will stay near NIH for weekly physical exams and blood tests. At day 180, recipients will go home. They will have tests at their doctor s office and NIH several times over 5 years.

Background: Severe aplastic anemia is a rare and serious blood disorder. It happens when the immune system starts to attack the bone marrow cells. This causes the bone marrow to stop making red blood cells, platelets, and white blood cells. Standard treatment for this disease is horse-ATG and cyclosporine, which suppress the immune system and stop it from attacking the bone marrow. However, this treatment does not work in all people. Some people still have poor blood cell counts even after treatment. Eltrombopag is a drug designed to mimic a protein in the body called thrombopoietin. It helps the body to make more platelets. It may also cause the body to make more red and white blood cells. Studies have shown that eltrombopag may be useful when added to standard treatment for severe aplastic anemia. It may help improve poor blood cell counts. Objectives: - To test the safety and effectiveness of adding eltrombopag to standard immunosuppressive therapy for severe aplastic anemia. Eligibility: - Individuals at least 2 years of age who have severe aplastic anemia that has not yet been treated. Design: Participants will be screened with a physical exam, medical history, and blood tests. Blood and urine samples will be collected. Participants will start treatment with horse-ATG and cyclosporine. Treatment will be given according to the standard of care for the disease. Cohort 1: After 14 days, participants will start taking eltrombopag. They will take eltrombopag for up to 6 months. Cohort 2: After 14 days, participants will start taking eltrombopag. They will take eltrombopag for up to 3 months. Cohort 3 and Extension Cohort: Participants will start taking eltrombopag on Day 1. They will take eltrombopag for up to 6 months. Participants may receive other medications to prevent infections during treatment. Treatment will be monitored with frequent blood tests. Participants will also fill out questionnaires about their symptoms and their quality of life.

Severe Aplastic Anemia (SAA) is a rare condition in which the body stops producing enough new blood cells. SAA can be cured with immune suppressive therapy or a bone marrow transplant. Regular treatment for patients with aplastic anemia who have a matched sibling (brother or sister), or family donor is a bone marrow transplant. Patients without a matched family donor normally are treated with immune suppressive therapy (IST). Match unrelated donor (URD) bone marrow transplant (BMT) is used as a secondary treatment in patients who did not get better with IST, had their disease come back, or a new worse disease replaced it (like leukemia). This trial will compare time from randomization to failure of treatment or death from any cause of IST versus URD BMT when used as initial therapy to treat SAA. The trial will also assess whether health-related quality of life and early markers of fertility differ between those randomized to URD BMT or IST, as well as assess the presence of marrow failure-related genes and presence of gene mutations associated with MDS or leukemia and the change in gene signatures after treatment in both study arms. This study treatment does not include any investigational drugs. The medicines and procedures in this study are standard for treatment of SAA.

This study was a single-arm, multicenter, phase Π clinical study. Patients admitted to the enrollment unit center with a confirmed diagnosis of TDNSAA/VSAA/SAA, treated with IST (p/r-ATG+CSA) in combination with TPO-RA (including eltrombopta or hydtrombopta) for at least 3 months with no hematologic response at 6-month follow-up, and who were not suitable or unwilling to undergo hematopoietic stem cell transplantation (HSCT), were to another novel TPO-RA avatrombopta, 40-60 mg (weight <80 kg), in addition to maintaining the original immunosuppressive therapy ( CSA or equivalent immune potency drugs), switch to another new TPO-RA avatropa 40-60 mg (40 mg daily for weight <80 kg; 60 mg daily for weight >80 kg) orally once daily for at least 3 months and follow up for 3 months to determine the hematologic response and to assess the safety of the drug

This is a multicenter, single-arm clinical study. The objective was to evaluate the efficacy and safety of Avatrombopag combined with IST in very/sever aplastic anemia patients with abnormal liver function or HAAA patients treated for the first time. The design was: Patients received p-ATG for 5 consecutive days (day 1-5), at a dose of 20 mg/kg/day. Cyclosporine 3 mg/kg orally in two divided doses, with cyclosporine trough concentrations maintained at 200-250 ng/ml for 3 months to achieve maximum efficacy, and Avatrombopag, which was administered in the dose of 40 mg orally once daily for a total of 12 weeks. Thirty-nine patients are expected to be enrolled in this study. Evaluation endpoint: complete response rate at 12 weeks of treatment.

Objectives 2.1 Primary objectives 1) To observe and compare incidence and severity of aGVHD and cGVHD between the two arms within 2 years after transplantation. 2) To observe and compare the engraftment rate between the two arms. 3) To observe and compare the incidence of infections between the two arms. 2.2 Secondary objectives To conduct pharmacogenomic assay in CD20 arm(treatment arm) before conditioning and monitor plasma concentration of CD20 dynamically（7d、14d、28d、56d、91d）. To monitor levels of B cells in peripheral blood dynamically (+90d、+180d、+270d、+360d、+450d、+540d、+630d、+720d) in all patients. To observe and compare the incidence of PTLD between the two arms. To observe and compare immunoglobulin levels after transplantation in all patients. To evaluate transplant-related mortality. To evaluate the effect on hematopoietic reconstruction.