Completed PHASE4 INTERVENTIONAL 2-arm NCT04411446

Cholecalciferol to Improve the Outcomes of COVID-19 Patients (CARED)

Randomized Controlled Trial of High Dose of Vitamin D as Compared With Placebo to Prevent Complications Among COVID-19 Patients

Sponsor: Agencia Nacional de Investigación y Desarrollo

Conditions COVID

Interventions Placebo Vitamin D

Updated 10 times since 2020 Last updated: Jul 28, 2021 Started: Aug 11, 2020 Primary completion: Jul 28, 2021 Completion: Jul 28, 2021

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

This PHASE4 trial investigates COVID and is currently completed. Agencia Nacional de Investigación y Desarrollo leads this study, which shows 10 recorded versions since 2020 — indicating substantial longitudinal coverage. Longitudinal tracking of infectious disease trials helps identify durability of treatment effects.

Status Flow

Change History

10 versions recorded

Sep 2025 — Present [monthly]

Completed PHASE4
Sep 2024 — Sep 2025 [monthly]

Completed PHASE4
Jul 2024 — Sep 2024 [monthly]

Completed PHASE4
Feb 2023 — Jul 2024 [monthly]

Completed PHASE4
Sep 2021 — Feb 2023 [monthly]

Completed PHASE4

Status: Recruiting → Completed

▶ Show 5 earlier versions

May 2021 — Sep 2021 [monthly]

Recruiting PHASE4
Jan 2021 — May 2021 [monthly]

Recruiting PHASE4
Dec 2020 — Jan 2021 [monthly]

Recruiting PHASE4
Sep 2020 — Dec 2020 [monthly]

Recruiting PHASE4

Status: Not Yet Recruiting → Recruiting
Jul 2020 — Sep 2020 [monthly]

Not Yet Recruiting PHASE4

First recorded

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:

Agencia Nacional de Investigación y Desarrollo
Vitamin D Study Group

Data source: Vitamin D Study Group

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

Study Locations

• San Juan Bautista, Argentina