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A study of vitamin D supplementation on clinical outcome of COVID-19 infected patients with pneumonia

A study of vitamin D supplementation on clinical outcome of COVID-19 infected patients with pneumonia

Status
Recruiting
Phases
Phase 2
Study type
Interventional
Source
TCTR
Registry ID
TCTR20210906005
Enrollment
400
Registered
2021-09-06
Start date
2021-05-28
Completion date
Unknown
Last updated
2026-08-03

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

Conditions

Newly diagnosed COVID-19 pneumonia patients admitted to the hospital for treatment High-dose vitamin D, COVID-19 pneumonia, clinical outcomes

Interventions

Individuals in the intervention arm are provided a high-dose vitamin D (alfacalcidol 2 mg per day) in addition to standard treatment for COVID-19 pneumonia from enrollment until hospital discharge ,In
Vitamin D ,No vitamin D

Sponsors

Faculty of Medicine Ramathibodi Hospital, Mahidol University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: 1. Aged 18 years and over 2. Diagnosed with COVID-19 pneumonia 3. Agrees to participate in the study

Exclusion criteria

Exclusion criteria: 1. Individuals with gastrointestinal disorders that are unable to take oral medications 2. Diagnosed with sarcoidosis within 1 year 3. Diagnosed with parathyroid gland disease within 1 year 4. Diagnosed with tuberculosis within 1 year 5. Diagnosed with kidney calculi within 1 year 6. Concurrent hypercalcemia with plasma calcium level over 10.6 mg/dL 7. Pregnant or breastfeeding individuals 8. Decline to participate in the study 9. Receipt of palliative therapy

Design outcomes

Primary

MeasureTime frame
COVID-19 pneumonia 30 days Modified ordinal scale

Secondary

MeasureTime frame
Hospitalization 30 days Medical record review

Countries

Thailand

Contacts

Public ContactPorpon Rotjanapan

Ramathibodi Hospital, Mahidol University

porpon.rot@mahidol.ac.th022011581

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 9, 2026