Combined immunodeficiency
MONDO:0015131A broad classification of inherited disorders presenting at birth that affect both the cell-mediated and humoral aspects of the immune response. Circulating numbers of B lymphocytes, T lymphocytes and NK cells are variable but where present do not function properly. Susceptibility to infection is the primary concern.
Also known as: CID, congenital combined immunodeficiency, X-linked combined immunodeficiency, combined T and B cell immunodeficiency, combined T cell and B cell immunodeficiency
55 clinical trials for this condition and its sub-types.
Follow this condition — get notified about new trialsSub-types
Broader categories
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Gentler transplant shows promise for kids with blood diseases
Disease control CompletedThis study tests a milder chemotherapy and immune-suppressing regimen before a stem cell transplant for children and young adults with non-malignant blood disorders like sickle cell disease or immune deficiencies. The goal is to safely achieve donor cell engraftment with fewer si…
Phase: PHASE2 • Sponsor: Children's Hospital of Philadelphia • Aim: Disease control
Last updated Jul 23, 2026 00:00 UTC
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Bubble baby breakthrough? experimental cell shot aims to reboot immune system faster
Disease control CompletedThis early-phase trial tested whether injecting special immune-building cells (HTLPs) could help children with severe combined immunodeficiency (SCID) rebuild their immune system faster after a partially matched stem cell transplant. Only 4 children took part. The goal was to see…
Phase: PHASE1, PHASE2 • Sponsor: Assistance Publique - Hôpitaux de Paris • Aim: Disease control
Last updated Jun 27, 2026 12:36 UTC
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Could red blood cells deliver a steroid to ease a rare brain disorder?
Disease control CompletedThis Phase 3 trial tested a treatment called EryDex for people with ataxia telangiectasia (A-T), a rare genetic disease that affects movement and coordination. EryDex is a steroid (dexamethasone) packaged inside the patient's own red blood cells and given as an IV infusion every …
Phase: PHASE3 • Sponsor: Quince Therapeutics S.p.A. • Aim: Disease control
Last updated Jun 27, 2026 12:25 UTC
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Gene therapy offers hope for 'Bubble Boy' disease, but leukemia risk remains
Disease control CompletedThis trial tested a gene therapy for children with SCID-X1, a severe immune disorder, who do not have a matched bone marrow donor. The treatment involves harvesting the child's own bone marrow cells, fixing the broken gene in the lab, and infusing the corrected cells back after m…
Phase: PHASE1, PHASE2 • Sponsor: David Williams • Aim: Disease control
Last updated Jun 27, 2026 12:23 UTC
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Gene therapy offers hope for boys with severe immune disorder
Disease control CompletedThis trial tested a gene therapy for X-linked severe combined immunodeficiency (SCID-X1), a life-threatening condition where boys are born without a working immune system. Five boys who had no matching bone marrow donor received a single infusion of their own blood stem cells tha…
Phase: PHASE1, PHASE2 • Sponsor: Assistance Publique - Hôpitaux de Paris • Aim: Disease control
Last updated Jun 27, 2026 11:00 UTC
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Large study looks at how a 25-Gene cancer test affects patients and families
Knowledge-focused CompletedThis study looked at how a genetic test that checks 25 genes linked to hereditary cancers is used in clinics. Over 1,500 people with a personal or family history of cancer took part. Researchers collected blood samples and had participants fill out questionnaires over five years …
Sponsor: University of Southern California • Aim: Knowledge-focused
Last updated Jun 27, 2026 09:06 UTC