Not applicableUnknownNCT04563650What this trial is testingCOVID-19 Serology and ImmunosenescenceWho this might be right forCovid19Geriatric MedicineSeroconversion+1 more Centre Hospitalier Universitaire, Amiens 98
Early research (Phase 1)Study completedNCT01262300What this trial is testingVitamin D Supplementation And Varicella Zoster Virus Vaccine Responsiveness In Older Long-Term Care ResidentsWho this might be right forImmunosenescenceShingles University of Colorado, Denver 33
Testing effectiveness (Phase 2)Study completedNCT01102374What this trial is testingVitamin D Supplementation and Acute Respiratory Infection in Older Long-Term Care ResidentsWho this might be right forRespiratory Infection University of Colorado, Denver 107
Not applicableWithdrawnNCT04772092What this trial is testingImpact of Age and Geriatric Co-morbidities on Lymphocyte Phenotype in Patients 70 Years of Age and OlderWho this might be right forGeriatrics Immunosenescence Centre Hospitalier Universitaire Dijon