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Vitamin D Testing and Treatment for COVID 19

Vitamin D Testing and Treatment for Adults With COVID 19

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04407286
Enrollment
41
Registered
2020-05-29
Start date
2020-05-19
Completion date
2020-11-30
Last updated
2021-12-30

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Covid 19, Vitamin D Deficiency

Brief summary

This study will measure vitamin D levels in adults with COVID 19. Participants with low levels of vitamin D will be entered into an open label trial of supplementation with vitamin D.

Detailed description

Protocol for Part 1: * A single blood draw at SCNM to measure levels of vitamin D and other nutrients, comprehensive metabolic panel, and complete blood count with differential * Completing a medical history/symptom form * Completing a form about COVID-19 symptoms every 2 weeks for 6 weeks * Authorization for release of medical records related to COVID 19 testing and/or treatment. Protocol for Part 2: * Take a vitamin D supplement daily for two weeks, at a dosage of 10,000 IU/day b.i.d. (age 18-69 years) or 15,000 IU/day t.i.d. (age 70+) * After two weeks of taking vitamin D, return to SCNM for a blood draw to remeasure levels of vitamin D, comprehensive metabolic panel, and complete blood count with differential. If vitamin D levels are still below 30 ng/ml, continue the dosage for 3 more weeks. If vitamin D levels are 30-49 ng/ml, continue at a dosage of 5000 IU/day. If vitamin D levels are 50+ ng/ml, stop supplementation. * Completing questionnaires about COVID 19 symptoms at 2, 4, and 6 weeks after treatment begins (5 minutes each time).

Interventions

DIETARY_SUPPLEMENTVitamin D3

Oral vitamin D3 capsules

Sponsors

Southwest College of Naturopathic Medicine
CollaboratorOTHER
Arizona State University
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

This is an open label treatment study for people with COVID 19 and low levels of vitamin D

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

for Part 1 (testing): 1. Adult age 18 or older 2. Previous positive test result for COVID 19 3. Able to communicate clearly in English

Exclusion criteria

for Part 1 (testing): none Inclusion Criteria for Part 2 (Vitamin D supplementation) 1. Participation in Part 1 2. Vitamin D level below 30 ng/ml 3. No abnormalities on the comprehensive metabolic panel that are clinically significant to increasing the risk of an adverse reaction to vitamin D supplementation

Design outcomes

Primary

MeasureTime frameDescription
Vitamin D levelsbaseline and after two weeks of vitamin D supplementationchange in level of Vitamin D, 25-Hydroxy between the two time points
severity of COVID 19 symptomsbaseline and at 2 weeks after vitamin D supplementationWe will calculate the change in severity of COVID 19 symptoms from baseline to 2 weeks after vitamin D supplementation

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026