Eligibility Module
The Eligibility Module contains detailed information about who can participate in the clinical trial. This includes eligibility criteria, age restrictions, gender requirements, healthy volunteer status, and study population descriptions, helping researchers understand who is eligible to participate in the study.
Eligibility Module path is as follows:
Study -> Protocol Section -> Eligibility Module
Eligibility Module
Ignite Creation Date:
2025-12-24 @ 7:02 PM
Ignite Modification Date:
2025-12-24 @ 7:02 PM
NCT ID:
NCT02881957
Eligibility Criteria:
Inclusion Criteria:
* Patients \>18 years of age
* Patients admitted to the neurosurgery or neurology services
* Patients admitted to a critical care unit
* Informed consent
* Expected to stay in the ICU for 48 hours or more
* Vitamin D deficiency (\<20ng/mL)
Exclusion Criteria:
* Patients where a vitamin D level was not drawn within 48 hours of admission
* Patients not randomized within 48 hours of admission
* Readmitted patients to the critical care unit
* Lack of informed consent
* Prior supplementation with vitamin D
* Severely impaired gastrointestinal function
* Other trial participation
* Pregnant or lactating women
* Hypercalcemia (total calcium of \>10.6 mg/dL or ionized serum calcium of \>5.4 mg/dL
* Tuberculosis history or clinical exam
* Sarcoidosis history or clinical exam
* Nephrolithiasis within the prior year
* Patients not deemed suitable for study participation (ie, psychiatric disease, living remotely from the clinic, or prisoner status)
* Pregnant or nursing women
Healthy Volunteers:
False
Sex:
ALL
Minimum Age:
18 Years
Study:
NCT02881957
Study Brief:
Protocol Section:
NCT02881957