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NCT04596657 · ClinicalTrials.gov registry record · NA

Vitamin D3 Supplementation to Prevent Respiratory Tract Infections

A NA study of COVID-19 and Respiratory Tract Infections, sponsored by The Cooper Health System.

Completed
Registry status
NA
Development phase
877
Enrollment target
1
Study location

NCT04596657: Completed NA study of COVID-19 and Respiratory Tract Infections, sponsored by The Cooper Health System.

NCT04596657 is a NA study of COVID-19 and Respiratory Tract Infections that has completed, run by The Cooper Health System. The registered enrollment target is 877 participants, below the 38,462-participant average among 298 other COVID-19 trials with a reported enrollment target (98% lower). The trial reports 1 study location across 1 state. According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT04596657, a NA study of COVID-19 and Respiratory Tract Infections, has completed, sponsored by The Cooper Health System.

COMPLETED
Registry status
NA
Development phase
877 participants
Enrollment target
1
Study location

Study 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.

Primary Outcome

Incidence of influenza-like illness

Interventions

  • DIETARY_SUPPLEMENT Vitamin D supplementation

Study Locations (1)

New Jersey

  • Cooper University Hospital - Camden

Trial Details

FieldValue
Enrollment Target 877 participants
Start Date 2020-10-27
Est. Completion 2023-10-19
Phase NA
The Cooper Health System

39 total trials

What the finished NCT04596657 record still lists

NCT04596657 is an interventional study that assigns participants to a tested intervention. The registered 877 participants enrollment target is mid-sized for trials with a published cap, below the 38,462-participant average among 298 other COVID-19 trials with a reported enrollment target (98% lower).

The record links to 3 conditions, with COVID-19 appearing as the primary indexed condition, and to 1 intervention - of which Vitamin D supplementation is the first listed.

NCT04596657 reports a single indexed study location in New Jersey.

Frequently Asked Questions

What is clinical trial NCT04596657 about?

NCT04596657 is a clinical study titled "Vitamin D3 Supplementation to Prevent Respiratory Tract Infections". 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.

What is the current status of trial NCT04596657?

This trial is currently completed. It is a NA study. The enrollment target is 877 participants. The study started on 2020-10-27. Estimated completion is 2023-10-19.

What conditions does trial NCT04596657 study?

This clinical trial studies the following conditions: COVID-19, Respiratory Tract Infections, Flu Like Illness.

What interventions are being tested in trial NCT04596657?

The interventions under investigation include: Vitamin D supplementation (DIETARY_SUPPLEMENT).

Who is sponsoring clinical trial NCT04596657?

This trial is sponsored by The Cooper Health System, which has 39 total clinical trials registered on ClinicalTrials.gov.

Where is trial NCT04596657 being conducted?

This trial has 1 study location across New Jersey. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.

Similar trials for COVID-19

Matched on the same primary condition, ranked to surface studies in the same phase first, then by recruiting status, no relevance scoring or editorial curation.

Where NCT04596657's enrollment target sits among peer trials

877 84th of 298 higher than 215 of 298 other COVID-19 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other COVID-19 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

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Source: ClinicalTrials.gov NCT04596657, the US trial registry maintained by the National Library of Medicine. NCT04596657 (mid enrollment · single site footprint · completed) retrieved and formatted by PlainTrial, see methodology.