25(OH)D

DIETARY_SUPPLEMENT3 trials

Sponsors

University of Zurich, Creighton University, Recep Tayyip Erdogan University Training and Research Hospital

Conditions

HealthyPeriodontal DiseasesVitamin D Deficiency

Phase 1

Pharmacokinetic Study: Effect of 25(OH)D and Vitamin D3 on Serum 25(OH)D

CompletedNCT00718276

University of ZurichHealthy

Start: 2008-03-31End: 2008-09-30Updated: 2011-12-23

Unknown Phase

The Variability of 25-hydroxyvitamin D Response From Crystalline 25-hydroxyvitamin D3

WithdrawnNCT01633658

Creighton UniversityVitamin D Deficiency

Start: 2012-11-30End: 2013-11-30Updated: 2013-05-29

Effect of Vitamin D on Periodontal Disease

CompletedNCT04209231

Recep Tayyip Erdogan University Training and Research HospitalPeriodontal Diseases, Vitamin D Deficiency

Start: 2015-11-30End: 2016-04-30Updated: 2019-12-24