Last reviewed · How we verify
Cholecalciferol (vitamin D)
Cholecalciferol (vitamin D3) is converted in the body to its active form, calcitriol, which regulates calcium and phosphate homeostasis and modulates immune function.
Cholecalciferol (vitamin D3) is converted in the body to its active form, calcitriol, which regulates calcium and phosphate homeostasis and modulates immune function. Used for Vitamin D deficiency, Osteoporosis and bone health maintenance, Hypocalcemia.
At a glance
| Generic name | Cholecalciferol (vitamin D) |
|---|---|
| Also known as | vitamin D |
| Sponsor | University of Tromso |
| Drug class | Vitamin D supplement / Secosteroid |
| Target | Vitamin D receptor (VDR) |
| Modality | Small molecule |
| Therapeutic area | Nutritional supplementation / Bone health / Immunology |
| Phase | FDA-approved |
Mechanism of action
Cholecalciferol is a fat-soluble vitamin that undergoes hydroxylation in the liver to 25-hydroxyvitamin D, then in the kidneys to the active hormone 1,25-dihydroxyvitamin D (calcitriol). The active form binds to the vitamin D receptor (VDR) in target tissues, regulating intestinal calcium absorption, bone mineralization, and immune cell differentiation and function.
Approved indications
- Vitamin D deficiency
- Osteoporosis and bone health maintenance
- Hypocalcemia
- Hypoparathyroidism
- Rickets
Common side effects
- Hypercalcemia
- Hypercalciuria
- Nausea
- Constipation
- Weakness
Key clinical trials
- Pharmacokinetics, Pharmacodynamics, Safety and Tolerability Evaluation of CTAP101 Extended-release Capsules in Pediatric Participants (PHASE2)
- Effect of Tirzepatide and Bimagrumab on Body Composition, Insulin Sensitivity, and Bone in Adults With Obesity (PHASE2)
- Correlation Vitamin D Level to Endocrine Autoimmune Toxicity Due to Immune Checkpoint Inhibitors
- Acute Vitamin D Supplementation on Testosterone in Females (NA)
- Association Between Benign Paroxysmal Positional Vertigo and Vitamin D Deficiency .
- PRESS -PAR: Early Detection and PREvention of Symptomatic postSurgical hypoPARathyroidism After Thyroid Surgery" (NA)
- Impact of Vitamin D Supplementation on the Rate of Pathologic Complete Response in Vitamin D Deficient Patients (PHASE2)
- Effect of the Consumption of Cookies Enriched With Plant Proteins and of a Vitamin D Supplement on the Progression of Sarcopenia in the Elderly (NA)
Primary sources
Every claim on this page is sourced from regulatory or scientific primary sources. See our editorial policy for full methodology.
| Source | Used for |
|---|---|
| ClinicalTrials.gov | Trial enrolment, design, endpoints, results |
Competitive intelligence
For the full competitive landscape — auto-detected comparators, recent regulatory actions across the set, upcoming PDUFA, patent timeline, sponsor landscape:
- Cholecalciferol (vitamin D) CI brief — competitive landscape report
- Cholecalciferol (vitamin D) updates RSS · CI watch RSS
- University of Tromso portfolio CI