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FrailtyNCT04956705

Vitamin D and Calcium Supplementation at Danish Nursing Homes

A study testing Vitamin D and calcium in people with Frailty and Physical Disability, run by University College Copenhagen at 2 sites in Denmark.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Nursing home residents are in high risk of vitamin D deficiency, which negatively affects bone health. Vitamin D and calcium supplements have shown to increase bone density and reduce fracture risk and may affect daily physical functioning. Read more about this study

Who is it for?
Any ageHealthy volunteers can take part
Conditions the study is for
Frailty, Physical Disability, Aging
What is being tested?
Vitamin D and calcium
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
109 participants
Where
2 sitesDenmark
Study dates
20 Sep 2021to 1 Apr 2022
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages Any age
  • All sexes
  • Healthy volunteers accepted
  • Child, Adult, Older adult

Who may be able to join

  • Being a resident at the participating nursing homes
  • Understand and speak Danish in order to understand the study procedures
  • Be able to give informed consent

Who cannot join

  • Having kidney diseases
  • Receiving medication which may induce adverse effects in combination with vitamin D and/or calcium supplements
  • Being terminally ill
  • Declared incompetent

Trial locations and contacts

2 sites in 1 country.

Denmark2 sites
  • Frederiksgadecenteret

    Haslev, 4690

  • Plejecentret Solbakken

    Ringsted, 4100

Other trials in Denmark

About this study

Official title: Vitamin D and Calcium Supplementation at Danish Nursing Homes - Effects on Vitamin D Status and Physical Functioning

Nursing home residents are in high risk of vitamin D deficiency, which negatively affects bone health. Vitamin D and calcium supplements have shown to increase bone density and reduce fracture risk and may affect daily physical functioning. Therefore, The Danish Health Authority recommends all nursing home residents a daily supplement of 20 µg vitamin D and 800-1000 mg calcium. However, adherence to the recommendation is low.

The present project hypothesizes that this low adherence results in a high number of residents with a deficient or insufficient vitamin D status, and that daily physical functioning can be improved or maintained by an improved adherence to the recommendation.

Read the detailed description

Background: Residents in nursing homes belong to one of the high-risk groups when it comes to vitamin D deficiency, which is associated with increased risk of osteoporosis, muscle weakness and generally decreased physical functioning and frailty. Therefore, the Danish Health Authority recommends that all residents in nursing homes receive a daily supplement of 20 µg of vitamin D in addition to 800-1000 mg of calcium. Some systematic reviews and meta-analyses find that daily supplementation of 20 µg of vitamin D can improve physical functioning and muscle strength among older adults, whereas others do not find an effect. However, most studies are performed in non-institutionalized older adults.

An online survey conducted in May 2020 has revealed that the recommendation of giving residents in nursing homes a daily supplement of 20 µg vitamin D and 800-1000 mg calcium is not routine clinical practice in Denmark. The Danish Health Authority highlights The Model for Improvement as a tool to use when working with evidence-based practice within prevention and health promotion in the municipalities.

Objectives:

  • To increase use of the recommended supplements with vitamin D and calcium among residents at nursing homes using The Model for Improvement as a methodological tool.
  • To investigate the effect of improved vitamin D and calcium supplement use on vitamin D status and daily physical functioning among residents at nursing homes.

Hypotheses:

  • Vitamin D status among residents at nursing homes are low and the majority can be defined as vitamin D insufficient.
  • Vitamin D status and daily physical functioning of the residents are positively affected by an improved implementation of the recommendation.

Design and Methods: The project has a quasi-experimental design without control groups. It estimates the causal impact of The Model for Improvement on implementing the specific recommendation in a realistic setting at the nursing homes.

The study includes the following endpoints related to the older adults at the nursing homes evaluated before and after the intervention:

  • Number of residents at the participating nursing homes taking supplementation of ≥20 µg of vitamin D and/or ≥800 mg of calcium ≥5 days/week.
  • Number of residents at the participating nursing homes classified as having an insufficient and deficient vitamin D status (serum 25-hydroxyvitamin D (25(OH)D <50 nmol/L and <25 nmol/L, respectively)
  • Mean daily physical functioning measured as muscle strength, 30-s chair-stand test, and a timed-up-and-go test.
Being tested
Vitamin D and calcium
Medical subject headings
Frailty, Muscle Weakness

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Vitamin D and calciumDietary supplement

    Either as tablets, droplets or sprays. Preferably daily doses of 20 µg of vitamin D and 800-1000 mg of calcium as recommended.

Study groups in NCT04956705
Study groupRoleWhat they receive
The Model for ImprovementExperimentalTogether with the health care staff at the nursing homes, the project group will identify which strategies to implement in order to increase the number of residents receiving the recommended daily supplements of 20 µg of vitamin D and 800-1000 mg of calcium. The Model for Improvement will be the methodological framework for defining, implementing, and evaluating strategies.
Receives: Dietary Supplement: Vitamin D and calcium

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Number of residents having vitamin D and calcium supplements daily

    Assessed as those having ≥ 20 µg vitamin D and/or ≥ 800 mg calcium ≥ 5 days /week

    Measured: 6 months

Secondary outcomes (3)
  1. Vitamin D status

    Assessed as 25-hydroxyvitamin D

    Measured: 6 months

  2. Handgrip strength

    Assessed with a digital handgrip dynamometer

    Measured: 6 months

  3. Physical functioning

    Assessed with timed-up-and-go test and 30-s chair-stand test

    Measured: 6 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted9 Jul 2021
  2. Study start20 Sep 2021
  3. Primary completion1 Apr 2022
  4. Study completion1 Apr 2022

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Health services research
Allocation
Not applicable
Intervention model
Single group
Model description
The project estimates the impact of The Model for Improvement on implementing the recommendation of vitamin D and calcium supplementation at nursing homes. Furthermore, the project evaluates which effect an improved implementation can have on vitamin D status and physical functioning in nursing home residents.
Masking
None (open label)
Enrolment
109 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04956705
Sponsor's protocol ID
Alias: 200462
Status last verified
May 2022
First submitted
30 Jun 2021
Last updated
18 May 2022
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Mortensen C, Beck AM, Tetens I, Jeppesen C, Jorgensen SF, Nielsen LK, Kristensen M. Vitamin D Status and Physical Functioning in Nursing Home Residents after Improved Adherence to the Vitamin D and Calcium Recommendation-A Quasiexperimental Study. J Nutr Metab. 2024 Oct 5;2024:2405429. doi: 10.1155/2024/2405429. eCollection 2024.

    PubMed 39398329

Questions about this trial

What is this clinical trial studying?

A study testing Vitamin D and calcium in people with Frailty and Physical Disability, run by University College Copenhagen at 2 sites in Denmark.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 18 May 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in Denmark. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Number of residents having vitamin D and calcium supplements daily (time frame: 6 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04956705, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 18 May 2022.

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