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Clinical Trial Summary

The Cooper vitamin D3 study is a randomized study investigating whether daily vitamin D3 supplementation can prevent respiratory tract infections, influenza-like illness and covid-19 in hospital workers.


Clinical Trial Description

Influenza-like illness and covid-19 were added to this summary because the protocol uses respiratory tract infections and influenza-like illness interchangeably. Influenza-like illness is more accurate. Protocol amendments: Protocol title was amended to include covid-19. Minimum age was changed from 52 to 18, expanding the sample size. Exclusion criteria re vitamin D intake was changed from >5000 to >=5000 IU. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT04596657
Study type Interventional
Source The Cooper Health System
Contact
Status Completed
Phase N/A
Start date October 27, 2020
Completion date October 19, 2023

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