Vitamin D Supplementation in Crohn's Disease

Phase 1, open-label trial of vitamin d in Crohn's disease and Vitamin D deficiency (VDD) (2 arms), sponsored by The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University. Primary endpoints: Genotype frequency of vitamin D receptor single nucleotide polymorphisms at 9 months and Serum 25 (OH) D level at 9 months. Status: unknown.