Completed PHASE4 INTERVENTIONAL 2-arm NCT02278172

The Effects of Vitamin D Supplementation on Aerobic Fitness in Athletes (VDAF)

The Effects of Vitamin D Supplementation on VO2max in Athletes: a Randomised, Double-blind, Placebo-controlled Trial

Sponsor: Northern Ireland Executive

Updated 5 times since 2017 Last updated: May 24, 2016 Started: Oct 31, 2014 Primary completion: Apr 30, 2015 Completion: Apr 30, 2015

This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

Listed as NCT02278172, this PHASE4 trial focuses on Aerobic Fitness (VO2max) and remains completed. Sponsored by Northern Ireland Executive, it has been updated 5 times since 2014, reflecting limited change activity. This study adds to the evidence base for this therapeutic area through structured, versioned documentation.

Status Flow

Change History

5 versions recorded

Sep 2024 — Present [monthly]

Completed PHASE4
Jul 2024 — Sep 2024 [monthly]

Completed PHASE4
Jan 2021 — Jul 2024 [monthly]

Completed PHASE4
Jun 2018 — Jan 2021 [monthly]

Completed PHASE4
Jan 2017 — Jun 2018 [monthly]

Completed PHASE4

First recorded

Oct 2014

Trial started

Per CT.gov start date — pre-dates our first snapshot

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:

Northern Ireland Executive
University of Ulster

Data source: University of Ulster

For direct contact, visit the study record on ClinicalTrials.gov .

Study Locations

• Coleraine, United Kingdom