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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
57 clinical trials for this condition and its sub-types, 3 tagged with Combined immunodeficiency itself.
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Sub-types of Combined immunodeficiency
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Severe combined immunodeficiency 24 trials · 37 incl. sub-types
11 sub-types
- Familial severe combined immunodeficiency 0 trials · 22 incl. sub-types Sub-types →
- T-B- severe combined immunodeficiency 0 trials · 14 incl. sub-types Sub-types →
- T-B+ severe combined immunodeficiency 0 trials · 10 incl. sub-types Sub-types →
- T+ B+ severe combined immunodeficiency 0 trials Sub-types →
- T-cell immunodeficiency, congenital alopecia, and nail dystrophy 0 trials
- Immunodeficiency 79 0 trials
- Janus kinase-3 deficiency 0 trials
- Recombinase activating gene 1 deficiency 0 trials
- Recombinase activating gene 2 deficiency 0 trials
- Severe combined immunodeficiency due to CARMIL2 deficiency 0 trials
- Severe combined immunodeficiency due to CD70 deficiency 0 trials
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Ataxia telangiectasia 11 trials
1 sub-type
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Wiskott-Aldrich syndrome 10 trials
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2 sub-types
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Non-SCID combined immunodeficiency 0 trials · 1 incl. sub-types
7 sub-types
- TCR-alpha-beta-positive T-cell deficiency 1 trial
- HELIOS deficiency 0 trials
- ITPKB deficiency 0 trials
- MAN2B2 deficiency 0 trials
- NIK deficiency 0 trials
- Non-severe combined immunodeficiency due to COPG1 deficiency 0 trials
- Non-severe combined immunodeficiency due to polymerase delta deficiency 0 trials Sub-types →
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MHC class I deficiency 0 trials
3 sub-types
- MHC class I deficiency 1 0 trials
- MHC class I deficiency 2 0 trials
- MHC class I deficiency 3 0 trials
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Combined immunodeficiency syndrome 0 trials
2 sub-types
Most studied deeper sub-types
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Gene therapy offers hope for babies with 'Bubble Boy' disease
Cure Recruiting nowThis study tests a new gene therapy for children with a severe immune disorder called Artemis-SCID, where the body cannot fight infections. Doctors take the child's own blood stem cells, fix the faulty gene in a lab, and put the corrected cells back. The goal is to rebuild a work…
Phase 1/2 • Sponsor: Assistance Publique - Hôpitaux de Paris • Aim: Cure
Last updated Jun 27, 2026 12:00 UTC
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New gene therapy offers hope for older kids and adults with 'bubble boy' disease
Disease control Recruiting nowThis study tests a gene therapy for people aged 2 to 50 with X-linked severe combined immunodeficiency (SCID-X1), a condition that leaves them without a working immune system. Participants receive their own blood stem cells that are genetically corrected in a lab, then infused ba…
Phase 1/2 • Sponsor: National Institute of Allergy and Infectious Diseases (NIAID) • Aim: Disease control
Last updated Sep 10, 2026 00:00 UTC
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Precision genetic therapy aims to slow rare brain disease
Disease control Recruiting nowThis early-stage trial tests a drug called atipeksen for people with Ataxia-Telangiectasia (A-T), a rare genetic disease that affects movement and coordination. The drug is designed to fix a specific genetic error in the ATM gene and is given via spinal injection. The study will …
Phase 1/2 • Sponsor: Timothy Yu • Aim: Disease control
Last updated Jun 27, 2026 12:38 UTC
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Stem cell transplant offers new hope for rare immune diseases
Disease control Recruiting nowThis study tests a stem cell transplant for people with common variable immunodeficiency (CVID) and other immune disorders. The goal is to replace the faulty immune system with a healthy donor's stem cells. Participants are aged 5 to 40 and will receive a reduced-intensity transp…
Phase 2 • Sponsor: Paul Szabolcs • Aim: Disease control
Last updated Jun 27, 2026 12:33 UTC
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New hope for rare disease: expanded access to experimental drug for A-T patients
Disease control Expanded accessThis program provides an experimental drug, levacetylleucine, to people with Ataxia-Telangiectasia (A-T), a rare genetic disease that affects movement and immunity. It is for patients who cannot join clinical trials and have no other good treatment options. The goal is to offer p…
Sponsor: IntraBio Inc • Aim: Disease control
Last updated Jun 27, 2026 09:07 UTC
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New stem cell filter could make transplants safer for vulnerable patients
Disease control Expanded accessThis expanded access program offers a special stem cell purification technique (CD34+ selection) for patients undergoing stem cell transplants. The method removes many T-cells from the donated stem cells, which lowers the risk of a serious complication called graft-versus-host di…
Sponsor: University of Florida • Aim: Disease control
Last updated Jun 27, 2026 09:06 UTC
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Gene therapy offers new hope for babies with rare 'Bubble Boy' disease
Disease control Recruiting nowThis study tests a gene therapy for Artemis-deficient severe combined immunodeficiency (ART-SCID), a life-threatening immune disorder. It involves taking the patient's own blood stem cells, adding a working copy of the faulty gene, and infusing them back after mild chemotherapy. …
Phase 1/2 • Sponsor: University of California, San Francisco • Aim: Disease control
Last updated Jun 27, 2026 09:04 UTC
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New stem cell transplant could reduce immune suppression in bone marrow failure patients
Disease control Recruiting nowThis phase 2 trial tests a special stem cell transplant for people with inherited bone marrow failure disorders like Fanconi anemia. The transplant uses a technique to remove certain immune cells, aiming to reduce the need for long-term immune-suppressing drugs and lower infectio…
Phase 2 • Sponsor: Masonic Cancer Center, University of Minnesota • Aim: Disease control
Last updated Jun 27, 2026 09:00 UTC
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New drug cocktail aims to shrink tough cancers
Disease control Recruiting nowThis study tests a new drug called TCC1727 combined with other medicines (benmelstobart, olaparib, or topotecan) in people with advanced solid tumors, including lung, stomach, endometrial cancer, and melanoma. The goal is to find the safest dose and see if the combination helps s…
Phase 1/2 • Sponsor: Beijing Tide Pharmaceutical Co., Ltd • Aim: Disease control
Last updated Jun 27, 2026 09:00 UTC
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Milder chemo before stem cell transplant shows promise for rare blood disorders
Disease control Recruiting nowThis study tracks 50 children and adults with non-malignant disorders like immune deficiencies and anemias who receive a stem cell transplant after a reduced-intensity chemotherapy regimen. The goal is to see if this approach improves survival and reduces severe graft-versus-host…
Sponsor: Paul Szabolcs • Aim: Disease control
Last updated Jun 27, 2026 08:10 UTC
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Milder transplant method aims to help young patients with rare blood diseases
Disease control Recruiting nowThis study is testing a less intense chemotherapy and radiation regimen before a stem cell transplant for children and young adults up to age 55 with non-cancerous blood disorders like immune deficiencies, anemias, and metabolic diseases. The goal is to see if this gentler prepar…
Phase 2 • Sponsor: Paul Szabolcs • Aim: Disease control
Last updated Jun 27, 2026 08:04 UTC
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Gene therapy offers hope for children with SCID-X1
Disease control Recruiting nowThis trial tests a gene therapy for children with X-linked severe combined immunodeficiency (SCID-X1), also known as 'bubble boy' disease. Participants receive a low dose of busulfan followed by an infusion of their own blood stem cells that have been genetically corrected with a…
Phase 1/2 • Sponsor: David Williams • Aim: Disease control
Last updated Jun 27, 2026 08:03 UTC
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New heart test could predict sudden cardiac death risk
Diagnosis Recruiting nowThis study aims to develop a new clinical test to diagnose Calcium Release Deficiency Syndrome (CRDS), a rare inherited heart condition that increases the risk of sudden cardiac arrest. Researchers will use a pacing procedure to measure heart wave changes in 400 participants, inc…
Sponsor: Population Health Research Institute • Aim: Diagnosis
Last updated Jul 24, 2026 00:00 UTC
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Could a simple gas ease breathing for spinal cord injury patients?
Symptom relief Recruiting nowThis study tests whether daily treatments with slightly elevated carbon dioxide (hypercapnia) can improve breathing and reduce sleep apnea in Veterans with spinal cord injury. About 30 adults with chronic spinal cord injury or able-bodied people with sleep apnea will receive the …
Sponsor: VA Office of Research and Development • Aim: Symptom relief
Last updated Jun 27, 2026 12:03 UTC
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Scientists dig into skin bugs to unlock eczema secrets
Knowledge-focused Recruiting nowThis study looks at the tiny organisms living on our skin—like bacteria and fungi—and how they might differ in people with eczema (atopic dermatitis). Researchers will collect skin samples from healthy volunteers and patients aged 2 to 40 with moderate to severe eczema, as well a…
Sponsor: National Human Genome Research Institute (NHGRI) • Aim: Knowledge-focused
Last updated Sep 18, 2026 00:00 UTC
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Scientists hunt for new immune disease genes in 500-Person study
Knowledge-focused Recruiting nowThis study aims to find new genes that cause immune system problems by examining up to 500 people with immune disorders and their relatives. Participants provide blood, saliva, or tissue samples and may have medical tests, but no experimental treatments are given. The goal is to …
Sponsor: National Institute of Allergy and Infectious Diseases (NIAID) • Aim: Knowledge-focused
Last updated Sep 16, 2026 00:00 UTC
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Scientists hunt for genetic clues behind rare immune disorder
Knowledge-focused Recruiting nowThis study aims to find the genetic causes of severe combined immunodeficiency (SCID), a rare condition where the immune system doesn't work properly. Researchers will collect blood samples from 100 patients and their relatives to analyze DNA and other factors. The goal is to bet…
Sponsor: National Heart, Lung, and Blood Institute (NHLBI) • Aim: Knowledge-focused
Last updated Sep 03, 2026 00:00 UTC
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Scientists launch major study to track rare immune diseases
Knowledge-focused Recruiting nowThis study is observing up to 3,500 people with immune system problems, including rare genetic conditions like chronic granulomatous disease and severe combined immunodeficiency. Researchers will track how these diseases change over time through blood tests, imaging, and checkups…
Sponsor: National Institute of Allergy and Infectious Diseases (NIAID) • Aim: Knowledge-focused
Last updated Sep 03, 2026 00:00 UTC
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Gut virus linked to liver damage in immune-deficient patients?
Knowledge-focused Recruiting nowThis study looks at 120 people with various immune deficiencies to see if a chronic gut virus infection is tied to liver or digestive problems. Researchers will collect blood, stool, urine, and biopsy samples to screen for enteric viruses. The goal is to identify which patients a…
Sponsor: Assistance Publique - Hôpitaux de Paris • Aim: Knowledge-focused
Last updated Jun 27, 2026 08:00 UTC
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New registry aims to unlock secrets of rare dwarfism disorders
Knowledge-focused Recruiting nowThis study creates a registry to collect health information from 200 people with rare forms of primordial dwarfism, such as MOPDII and Meier-Gorlin syndrome. Researchers hope to learn how these conditions change over a person's lifetime and improve future care. Participants provi…
Sponsor: Nemours Children's Clinic • Aim: Knowledge-focused
Last updated Jun 27, 2026 07:52 UTC