Clinical Research Directory

Early Detection of Infectious and Noninfectious Lung Diseases Following Allogeneic Hematopoietic Stem Cell Transplantation

Background: Stem cell transplants (called hematopoietic stem cell transplantation, or HSCT) are used to treat various diseases. But when the cells for this procedure are donated by someone other than the person who receives the HSCT ( allogeneic HSCT ), the recipient has an increased risk of lung inflammation and scarring. This happens when their immune cells attack healthy lung cells. In this natural history study, researchers will look for the best ways to detect developing lung inflammations earlier after an HSCT. Objective: To see if certain tests can detect early signs of lung inflammation in people after HSCT. Eligibility: People aged 5 to 70 years who will have HSCT as part of another NIH study. Design: Participants will undergo these tests prior to their HSCT. These tests will then be repeated regularly for 2 years: Ultra-low dose computed tomography (CT) scans. Participants will lie on a table that slides through a machine; the machine uses X-rays to get pictures of the inside of the body. This type of scan uses less radiation than normal CT scans. Bronchoscopy with lavage: Participants will be sedated. A flexible tube will be inserted through the mouth and into the airways. Salt water will be squirted into the lung, then sucked out to collect cells and fluids from the lung. Another tube with a camera may be inserted into the airways to take pictures. Blood tests. Blood will be drawn every 2 to 4 weeks. Pulmonary function tests. Participants will breathe into a machine to test their lung function. They will see how far they can walk in 6 minutes.

Ruxolitinib-Decitabine Intensified Conditioning Regimen for AML: A Randomized Trial

This study aims to determine whether the recurrence rate of high-risk acute myeloid leukemia CR1 patients who received allogeneic hematopoietic stem cell transplantation with the Ruxolitinib, Decitabine combined with Bu/Cy or BuF intensive pretreatment regimen is reduced compared with the traditional Bu/Cy or BuFpretreatment regimen.

Effect of Moderate Renal Impairment and Race/Ethnicity on Treosulfan Pharmacokinetics

This study aim is to assess, if treosulfan pharmacokinetics are influenced by declined renal function and by race/ethnicity of patients. The study also aims to determine an appropriate safe dose of treosulfan, when patient's renal function is impaired. The participants of this study are undergoing allogenic hematopoietic stem cell transplantation for treatment of acute myeloid leukemia or myelodysplastic syndrome.

Phase II Clinical Study on the Safety and Efficacy of Combined CAR-T Therapy Following Autologous Stem Cell Transplantation in Multiple Myeloma

Chimeric Antigen Receptor T-Cell (CAR-T) immunotherapy is a rapidly developing novel approach in adoptive immunotherapy for tumors in recent years. Its main characteristic lies in genetically engineering T cells to express tumor antigen-specific receptors, thereby endowing them with targeting capability, cytotoxicity, and persistence. This approach has demonstrated remarkable efficacy in relapsed/refractory hematologic malignancies. Research on multiple myeloma (MM)-specific CAR-T cells has also been progressively conducted with promising outcomes, establishing CAR-T cell therapy as an effective new treatment strategy for MM. Notably, targets such as B-cell maturation antigen (BCMA) and GPRC5D have emerged as prominent therapeutic targets for CAR-T cell therapy. Therefore, we propose to evaluate the efficacy and safety of sequential CAR-T therapy following autologous hematopoietic stem cell transplantation (ASCT) in newly diagnosed MM patients who achieve partial response (PR) or better after four cycles of first-line chemotherapy but fail to attain complete response (CR), or those who achieve CR but present with high-risk factors. The clinical data from this study will provide evidence-based support for novel treatment strategies in this subset of MM patients.

Pharmacokinetics of Posaconazole in Allogeneic Transplant Patients With Mucositis

The goal of this study is to calculate pharmacokinetic parameters and to evaluate the trough levels of posaconazole reached in patients with different stages of mucositis, due to chemotherapy and total body irradiation.