CompletedNot Applicable

Optimizing Vitamin D in the Elderly

United States86 participantsStarted 2012-09

Plain-language summary

Vitamin D deficiency is highly prevalent in older people in the absence of vitamin D supplementation. The limited data available show marked inter-individual variability in response to vitamin D supplementation in very old, frail elderly with almost 25% remaining vitamin D deficient (25-OH D \< 20 ng/mL) when receiving the currently recommended 800 IU/day vitamin D. This proposal is for exploratory research on the use of a wide range of oral vitamin D3 doses in frail elderly living in controlled living environments.

Who can participate

Age range

65 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * age over 65 * medically stable * residing in long-term care or assisted living Exclusion Criteria: * hypercalcemia or high risk for hypercalcemia * active cancer or malignancy other than non-melanoma skin cancer * severe renal disease (eGFR \<30 ml/mkin/M2) * small bowel resection or intestinal bypass surgery * hyperparathyroidism * granulomatous disease * clinically unstable (changes in medications or diagnoses within a month, hospitalizations, within 6 months) * allergy to vitamin D

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Total 25-OH Vitamin D3 Level

Timeframe: 16 weeks

Trial details

NCT IDNCT01554241

SponsorUniversity of California, San Francisco

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2014-09

Results submitted2015-01-23

View on ClinicalTrials.gov More Deficiency of Vitamin D3 trials