Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Sep 25, 2026, 6:11 PM EDT

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Showing 25–26 of 2 matching trials from the live ClinicalTrials.gov search.
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Conditions
Healthy Volunteers
Interventions
Vitamin C
Other
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years to 35 Years
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1997 – 2019
U.S. locations
1
States / cities
Bethesda, Maryland
Conditions
Adrenal Gland Pheochromocytoma, Carcinoma In Situ, Central Nervous System Neoplasm, Childhood Immature Teratoma, Childhood Kidney Neoplasm, Childhood Langerhans Cell Histiocytosis, Childhood Mature Teratoma, Congenital Mesoblastic Nephroma, Desmoid Fibromatosis, Ganglioneuroma, Lymphoproliferative Disorder, Malignant Neoplasm, Malignant Solid Neoplasm, Melanocytic Neoplasm, Myeloproliferative Neoplasm, Neoplasm of Uncertain Malignant Potential, Neuroendocrine Neoplasm, Stromal Neoplasm
Interventions
Cytology Specimen Collection Procedure, Medical Chart Review
Other
Lead sponsor
Children's Oncology Group
Network
Eligibility
Up to 25 Years
Enrollment
75,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2030
U.S. locations
246
States / cities
Birmingham, Alabama • Mobile, Alabama • Anchorage, Alaska + 177 more