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Study identifier: NCT00001244 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

Immune Regulation in Patients With Common Variable Immunodeficiency and Related Inborn Errors of Immunity (IEI)

Condition: XLA · CVID · Yao Syndrome  ·  Sponsor: National Institute of Allergy and Infectious Diseases (NIAID)

PhaseN/A
Planned participants500
Who can joinAll sexes, 2 Years to 120 Years
Healthy volunteersNo

About this study

This study aims to understand the causes and progression of Common Variable Immunodeficiency (CVID) and related inborn errors of immunity (IEI). These are conditions where the immune system does not function properly, leading to frequent infections and other complications such as gastrointestinal inflammation, lung and liver disease, autoimmune conditions, and an increased risk of certain cancers. By studying patients with CVI and related immune disorders, we hope to develop better ways to diagnose, treat, and prevent complications associated with these conditions. Patients diagnosed with CVID or related immune disorders must be referred by their physician and medical records reviewed by the study team to confirm eligibility to participate in this study. Once enrolled, participants will undergo various tests, including blood draws, physical exams, and imaging studies like CT scans to track changes over time. We may collect samples such as blood, urine, stool, or saliva for research purposes. If a surgical procedure or biopsy is performed because it is medically necessary, we may collect an additional sample for research testing. Family members of patients may be asked to provide blood samples for comparison. Some tests may be done remotely if participants or family members cannot travel to the study site. Who Can Participate * Patients diagnosed with CVI or related IEI, such as X-linked agammaglobulinemia, Blau Syndrome or Yao Syndrome. * Participants must be at least 2 ye…

This description comes directly from the study's public registry record.

Talk to the study team

Kimberly L Montgomery-Recht, R.N.  ·  (240) 422-7966  ·  kim.montgomery-recht@nih.gov

Always discuss trial participation with your own doctor first.

Locations (1)

National Institutes of Health Clinical CenterBethesda, Maryland, United StatesRecruiting

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Source record: clinicaltrials.gov/study/NCT00001244