Completed NA INTERVENTIONAL 4-arm NCT03810261

Challenges in Achieving Adequate Vitamin D Status in the Adult Population/ Part 2 (VITAD/2)

Challenges in Achieving Adequate Vitamin D Status in the Adult Population - Part 2

Sponsor: Institute of Nutrition, Slovenia (Nutris)

Interventions Oil-based vitamin D Vitamin D capsules Water-based vitamin D

Updated 8 times since 2019 Last updated: Jun 16, 2021 Started: Jan 8, 2019 Primary completion: Apr 2, 2019 Completion: Apr 2, 2019

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

This NA trial investigates Vitamin D Deficiency and is currently completed. Institute of Nutrition, Slovenia (Nutris) leads this study, which shows 8 recorded versions since 2019 — indicating limited longitudinal coverage. The change history captured here reflects the iterative nature of clinical trial conduct.

Status Flow

Change History

8 versions recorded

Oct 2025 — Present [monthly]

Completed NA
Sep 2024 — Oct 2025 [monthly]

Completed NA
Jul 2024 — Sep 2024 [monthly]

Completed NA
Mar 2023 — Jul 2024 [monthly]

Completed NA
Sep 2021 — Mar 2023 [monthly]

Completed NA

Status: Active Not Recruiting → Completed

▶ Show 3 earlier versions

Jan 2021 — Sep 2021 [monthly]

Active Not Recruiting NA
Apr 2019 — Jan 2021 [monthly]

Active Not Recruiting NA

Status: Recruiting → Active Not Recruiting
Feb 2019 — Apr 2019 [monthly]

Recruiting NA

First recorded

Jan 2019

Trial started

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

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:

Institute of Nutrition, Slovenia (Nutris)
Slovenian Research Agency
VIST - Faculty of Applied Sciences
Valens Int. d.o.o., Slovenija

Data source: Institute of Nutrition, Slovenia (Nutris)

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

Study Locations

• Ljubljana, Slovenia