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The Effect of Melatonin and Vitamin C on COVID-19

The Effect of Melatonin and Vitamin C on COVID-19

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04530539
Enrollment
122
Registered
2020-08-28
Start date
2020-10-05
Completion date
2022-08-11
Last updated
2022-08-17

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

Conditions

Covid19, SARS-CoV Infection

Keywords

vitamin c, melatonin

Brief summary

This is a double-blind placebo controlled trial that seeks to evaluate the impact of melatonin and vitamin C on symptoms and outcomes of patients with COVID-19.

Interventions

DIETARY_SUPPLEMENTVitamin C

1000mg Vitamin C, at bedtime

DIETARY_SUPPLEMENTmelatonin

10mg melatonin, at bedtime

DIETARY_SUPPLEMENTPlacebo

Placebo at bedtime

Daily symptom survey to be completed by patient electronically

Sponsors

Lancaster General Hospital
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SUPPORTIVE_CARE
Masking
TRIPLE (Subject, Caregiver, Investigator)

Eligibility

Sex/Gender
ALL
Age
50 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* COVID-19 positive test (outpatient testing), * Age \>50 (chosen based greater risk for older patients to be vitamin deficient, age \>65 not used so as not to be too restrictive in the inclusion criteria) * Experiencing symptoms for \<5 days prior to enrollment * Able to read and write in English or Spanish * Able to access REDCap daily * Valid email address * Current has a Lancaster General Health primary care physician

Exclusion criteria

* COVID-19 test ordered pre-procedure for asymptomatic screening * Currently taking vitamin C supplements * Currently taking melatonin supplements * Currently hospitalized * Deceased * Currently pregnant * Currently incarcerated

Design outcomes

Primary

MeasureTime frameDescription
Symptom Severity14 daysSymptom severity will be tracked electronically

Secondary

MeasureTime frameDescription
Symptom progression14 daysDetermine symptom course of those with moderate or severe symptoms

Countries

United States

Outcome results

None listed

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