Common variable immunodeficiency

This phase 2 trial tests whether the supplement fisetin can improve lung disease in people with common variable immunodeficiency (CVID). Twenty participants will receive either fisetin or a placebo on four days over a month. The study measures changes in immune cells and lung fun…

This study tests a donor stem cell transplant for people with severe immune system problems, like SCID and Wiskott-Aldrich syndrome. The goal is to help the body make healthy blood cells and fight infections. Participants receive donated stem cells to rebuild their immune system.…

This study tests whether a stem cell transplant from a healthy donor can safely treat people with severe T-cell problems. Participants receive chemotherapy and antibody therapy before the transplant, followed by donor stem cells. The goal is to see if the new immune system can co…

This study tests a stem cell transplant using a milder chemotherapy-like regimen to treat children and young adults (up to age 28) with various immune system disorders. The goal is to help the donor stem cells settle in the body with fewer side effects. The study involves 20 part…

This study tests a new approach for people aged 5 to 45 with primary immune deficiencies and end-stage lung disease. Participants receive a double lung transplant followed by a stem cell transplant from the same donor. The goal is to see if this combined procedure is safe and can…

This study collects small skin samples from people with primary immunodeficiency or immune regulation disorders, as well as from healthy volunteers. Researchers will use these cells to create cell lines for laboratory research. The goal is to better understand immune diseases and…