Vitamin D Supplementation for the Prevention of Acute Respiratory Infections: a RCT in Young Finnish Men
1 other identifier
interventional
231
1 country
1
Brief Summary
Vitamin D intervention effects on the prevention of acute respiratory tract infections among Young Finnish Men
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Jan 2018
Shorter than P25 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
January 4, 2018
CompletedPrimary Completion
Last participant's last visit for primary outcome
May 14, 2018
CompletedStudy Completion
Last participant's last visit for all outcomes
May 14, 2018
CompletedFirst Submitted
Initial submission to the registry
December 16, 2020
CompletedFirst Posted
Study publicly available on registry
August 20, 2021
CompletedOctober 18, 2023
October 1, 2023
4 months
December 16, 2020
October 17, 2023
Conditions
Outcome Measures
Primary Outcomes (1)
Days off duty due to acute respiratory tract infections
The number of Days off Duty recommended by Health care personnel will be calculated in order to show the severity and last of the disease. By that it could be estimated how the disease will effect on duty service.
4 months
Secondary Outcomes (2)
Days off duty due to musculoskeletal disorders
4 months
Aerobic and muscular fitness
4 months
Study Arms (2)
vitamin D3
ACTIVE COMPARATOR20 mikrog vitamin D3 daily, 3 months
Placebo
PLACEBO COMPARATORPlacebo
Interventions
Eligibility Criteria
You may qualify if:
- Male
- years of age
- examined as Healthy according to Finnish Military Health Care regulations
You may not qualify if:
- Female
- age \> 30 yrs
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Tampere Universitylead
- Finnish Defense Forcescollaborator
Study Sites (1)
Finnish Defence Forces
Hämeenlinna, 13210, Finland
Related Publications (1)
Laaksi A, Kyrolainen H, Pihlajamaki H, Vaara JP, Luukkaala T, Laaksi I. Effects of Vitamin D Supplementation and Baseline Vitamin D Status on Acute Respiratory Infections and Cathelicidin: A Randomized Controlled Trial. Open Forum Infect Dis. 2024 Aug 27;11(9):ofae482. doi: 10.1093/ofid/ofae482. eCollection 2024 Sep.
PMID: 39301110DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
ilkka laaksi, MDPhD
University of Tampere, Finland
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- QUADRUPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- PREVENTION
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Principal Investigator
Study Record Dates
First Submitted
December 16, 2020
First Posted
August 20, 2021
Study Start
January 4, 2018
Primary Completion
May 14, 2018
Study Completion
May 14, 2018
Last Updated
October 18, 2023
Record last verified: 2023-10
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- CSR