{"id":"vitamin-d-3","safety":{"commonSideEffects":[{"rate":null,"effect":"Hypercalcemia"},{"rate":null,"effect":"Hypercalciuria"},{"rate":null,"effect":"Nausea"},{"rate":null,"effect":"Vomiting"},{"rate":null,"effect":"Constipation"},{"rate":null,"effect":"Weakness"}]},"_chembl":null,"_dailymed":{"setId":"85dc7f21-ce85-4ae9-b7dc-937293d9f237","title":"AMERIX VITAMIN D 3 (CHOLECALCIFEROL) TABLET, CHEWABLE [LEOSONS OVERSEAS CORP]"},"mechanism":{"_ai_source":"claude-haiku-4.5","explanation":"Vitamin D3 (cholecalciferol) is converted in the liver to 25-hydroxyvitamin D and then in the kidneys to the active form 1,25-dihydroxyvitamin D, which binds to the vitamin D receptor (VDR) in target tissues. This binding regulates gene expression to promote intestinal calcium and phosphate absorption, maintain bone mineralization, and modulate immune cell differentiation and function. VDR activation also influences cell proliferation, differentiation, and apoptosis across multiple cell types.","oneSentence":"Vitamin D3 acts as a steroid hormone precursor that regulates calcium and phosphate homeostasis and modulates immune function through binding to the vitamin D receptor.","_ai_confidence":"high"},"_scrapedAt":"2026-03-28T01:40:47.037Z","_scrapedBy":"cloudflare-swarm","_wikipedia":null,"indications":{"approved":[{"name":"Vitamin D deficiency"},{"name":"Hypocalcemia"},{"name":"Hypoparathyroidism"},{"name":"Osteomalacia"},{"name":"Rickets"},{"name":"Bone health maintenance"}]},"trialDetails":[{"nctId":"NCT07494045","phase":"PHASE2","title":"Pharmacokinetics, Pharmacodynamics, Safety and Tolerability Evaluation of CTAP101 Extended-release Capsules in Pediatric Participants","status":"NOT_YET_RECRUITING","sponsor":"OPKO Health, Inc.","startDate":"2026-06","conditions":"CKD Stage 3, CKD Stage 4, Secondary Hyperparathyroidism","enrollment":40},{"nctId":"NCT06172296","phase":"PHASE3","title":"Dinutuximab With Chemotherapy, Surgery and Stem Cell Transplantation for the Treatment of Children With Newly Diagnosed High Risk Neuroblastoma","status":"RECRUITING","sponsor":"National Cancer Institute (NCI)","startDate":"2024-04-19","conditions":"Ganglioneuroblastoma, Nodular, Neuroblastoma","enrollment":478},{"nctId":"NCT06610968","phase":"NA","title":"Acute Vitamin D Supplementation on Testosterone in Females","status":"ACTIVE_NOT_RECRUITING","sponsor":"University of Southern California","startDate":"2025-07-01","conditions":"Female Hormone Profile","enrollment":20},{"nctId":"NCT07491601","phase":"NA","title":"PRESS -PAR: Early Detection and PREvention of Symptomatic postSurgical hypoPARathyroidism After Thyroid Surgery\"","status":"RECRUITING","sponsor":"Nicolas Schlegel","startDate":"2025-01-08","conditions":"Postoperative Hypoparathyroidism, Postsurgical Hypoparathyroidism, Hypoparathyroidism Post-surgical","enrollment":336},{"nctId":"NCT04677816","phase":"PHASE2","title":"Impact of Vitamin D Supplementation on the Rate of Pathologic Complete Response in Vitamin D Deficient Patients","status":"RECRUITING","sponsor":"Wake Forest University Health Sciences","startDate":"2021-10-22","conditions":"Triple Negative Breast Cancer, Vitamin D Deficiency, Invasive Breast Cancer","enrollment":50},{"nctId":"NCT07487610","phase":"","title":"Relationship Between Neuropathic Pain and Geriatric Assessment Parameters in Patients Aged 80 Years and Older","status":"RECRUITING","sponsor":"Sultan 1. 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