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ClinicalTrials.gov public records Last synced Jun 27, 2026, 2:38 PM EDT

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Showing 1–5 of 5 matching trials from the live ClinicalTrials.gov search.
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Recruiting No phase listed Observational Accepts healthy volunteers

Study of Factors Regulating Mast Cell Proliferation

NCT00044122
Conditions
Mastocytosis, Monoclonal, Bone Marrow, Tryptase
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
1 Day to 80 Years
Enrollment
600 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2002
U.S. locations
1
States / cities
Bethesda, Maryland
Active, not recruiting No phase listed Observational

Cause of Unexplained Anaphylaxis

NCT00719719
Conditions
Idiopathic Anaphylaxis, Drug Anaphylaxis, Venom Anaphylaxis, Food Anaphylaxis
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
13 Years to 75 Years
Enrollment
115 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2008
U.S. locations
1
States / cities
Bethesda, Maryland
Conditions
Anaphylaxis, Hypotension, Bronchospasm, Angioedema
Interventions
Epinephrine, Omalizumab (Xolair), Placebos
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 70 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2019
U.S. locations
1
States / cities
Bethesda, Maryland
Conditions
PGM3 Deficiency, Eosinophilic and/or Atopic Dermatitis, OSMR Deficiency, Primary Localized Cutaneous Amyloidosis, Hereditary Alpha-tryptasemia
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
2 Years to 80 Years
Enrollment
945 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2010
U.S. locations
1
States / cities
Bethesda, Maryland
Conditions
Knee Osteoarthritis, Arthropathy of Knee, Arthrofibrosis
Interventions
Tryptase, Serum test
Diagnostic Test
Lead sponsor
Mayo Clinic
Other
Eligibility
20 Years to 100 Years
Enrollment
219 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
1
States / cities
Rochester, Minnesota