DrugPatentWatch Database Preview
CLINICAL TRIALS PROFILE FOR CALCIFEDIOL
Clinical Trials for Calcifediol
| Trial ID | Title | Status | Sponsor | Phase | Summary |
|---|---|---|---|---|---|
| NCT01574027 | Efficacy of Vitamin D in Colorectal Cancer Chemoprevention | Completed | University of Illinois at Chicago | Phase 2 | Vitamin D's ability to prevent colorectal cancer (CRC) has been suspected for nearly 30 years, but has never been directly studied in humans. The biologically active version of vitamin D, 1,25(OH)2D3, cannot be readily used in humans because of its tendency to cause serum calcium levels to rise. In contrast, 25(OH)D3 (ie calcifediol) does not have this side effect. The investigators previous research suggests that the enzyme necessary to convert 25(OH)D3 (calcifediol) into active 1,25(OH)D3 is present in cells lining the large intestine (colon). Aberrant crypt foci (ACF) are very small (ie microscopic) collections of abnormally shaped cells that are a commonly used marker of CRC risk. Screening colonoscopy at UIC routinely uses methods that allow ACF counting to be done as a part of standard practice. ACF's are not fixed, like polyps or cancers, but can disappear as a person's risk for developing CRC decreases. The investigators propose giving patient's with 10 or more ACF's 25(OH)D3 (calcifediol) or placebo, and determining if there is a drug-dependant decrease in ACF number. The primary objective is to determine whether 25(OH)D3 (calcifediol) supplementation, compared to placebo, causes significant reduction of ACF number from baseline levels. The primary endpoint will be change in ACF number. |
| NCT01651000 | Safety and Efficacy of CTAP101 to Treat Secondary Hyperparathyroidism in Stage 3 or 4 CKD and Vitamin D Insufficiency | Completed | OPKO IP Holdings II, Inc. | Phase 3 | This study will evaluate the efficacy of CTAP101 Capsules versus placebo in reducing intact parathyroid hormone (iPTH) by at least 30% from pretreatment baseline; safety and tolerability of CTAP101 will also be evaluated |
| NCT01704079 | Safety and Efficacy of CTAP101 to Treat Secondary Hyperparathyroidism in Stage 3 or 4 CKD and Vitamin D Insufficiency | Completed | OPKO IP Holdings II, Inc. | Phase 3 | This study will evaluate the efficacy of CTAP101 Capsules versus placebo in reducing intact parathyroid hormone (iPTH) by at least 30% from pretreatment baseline; safety and tolerability of CTAP101 will also be evaluated |
| Trial ID | Title | Status | Sponsor | Phase | Summary |
Clinical Trial Conditions for Calcifediol
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