Comparison · NCT04474483-bd9186af
Melatonin vs Control: Hospitalization
Calculated by ConductScience from the counts the trial posted to ClinicalTrials.gov.
2 sourcestrial-comparisons-2026-03-23-0.1.0
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ConductScience Library. Melatonin vs Control: Hospitalization. Trial comparisons, record NCT04474483-bd9186af. Release trial-comparisons-2026-03-23-0.1.0, 23 Mar 2026. https://conductscience.org/library/comparisons/NCT04474483-bd9186af
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Measures6
Calculated by ConductScience from the counts the trial posted to ClinicalTrials.gov.
| Measure | Value | 95% interval, lower | 95% interval, upper | Method | Note |
|---|---|---|---|---|---|
| Risk in group 1 | 0.2 | 0.0362 | 0.624 | wilson | |
| Risk in group 2 | 0.333 | 0.0615 | 0.792 | wilson | |
| Risk difference, group 1 minus group 2 | -0.133 | -0.621 | 0.371 | newcombe hybrid score | |
| Risk ratio, group 1 over group 2 | 0.6 | 0.0559 | 6.44 | log | |
| Odds ratio, group 1 over group 2 | 0.5 | 0.0194 | 12.9 | log | |
| Number needed to treat, for one fewer participant with the outcome on Melatonin than on Control | 7.5 | from the risk difference interval | the interval includes no difference |
Source ClinicalTrials.gov
Groups2
Group 2 names the comparator: control.
| Group | Title | Description | With the outcome | Analysed | ClinicalTrials.gov code |
|---|---|---|---|---|---|
| Group 1 | Melatonin | Melatonin will be administered orally as a 10 mg dose three times a day for 14 days. Size 4 clear vegetable cellulose capsules containing 10 mg melatonin, microcrystalline cellulose, and rice concentrate prepared by Life Extension® will be over-encapsulated in opaque gelatin capsules. Over-encapsulation of melatonin treatments will be done by the research pharmacist and will be mailed to study subjects directly by courier. Melatonin capsules will be stored at room temperature.~Melatonin: Melatonin will be administered orally as a 10 mg dose three times a day for 14 days. Size 4 clear vegetable cellulose capsules containing 10 mg melatonin, microcrystalline cellulose, and rice concentrate prepared by Life Extension® will be over-encapsulated in opaque gelatin capsules. Over-encapsulation of melatonin treatments will be done by the research pharmacist and will be mailed to study subjects directly by courier. Melatonin capsules will be stored at room temperature. | 1 | 5 | OG001 |
| Group 2 | Control | Placebo capsules will be prepared with opaque gelatin capsules, filled using methylcellulose and over-encapsulated to appear identical to interventional drug. Placebo capsules will be given orally in the same regimen as intervention (three times daily for 14 days). Capsules will be prepared by the research pharmacist and will be mailed to study subjects directly by courier. Placebo capsules will be stored at room temperature.~Placebo (Methylcellulose) capsule: Placebo capsules will be prepared with opaque gelatin capsules, filled using methylcellulose and over-encapsulated to appear identical to interventional drug. Placebo capsules will be given orally in the same regimen as intervention (three times daily for 14 days). Capsules will be prepared by the research pharmacist and will be mailed to study subjects directly by courier. Placebo capsules will be stored at room temperature. | 1 | 3 | OG000 |
Source ClinicalTrials.gov
Outcome
- Type
- SECONDARY
- Title
- Hospitalization
- Description
- Number of COVID-19 related hospitalizations at 28 days
- Time frame
- 28 days
- Population
Source ClinicalTrials.gov
Trial
- Title
- Safety and Efficacy of Melatonin in Outpatients Infected With COVID-19
- NCT number
- NCT04474483
- Phases
- PHASE2
- Conditions
- COVID-19
- Interventions
- Melatonin, Placebo (Methylcellulose) capsule
- Lead sponsor
- State University of New York at Buffalo
- Results first posted
- 2024-02-07
- Results on ClinicalTrials.gov
- https://clinicaltrials.gov/study/NCT04474483?tab=results
Source ClinicalTrials.gov
Source
- Release
- trial-comparisons-2026-03-23-0.1.0
- Release manifest SHA-256
- f66225897fbf258b57ea10bdacfd0347d3cdfda93f7f5685234b7e06ea36fa57
- AACT copy
- 2026-03-23
- Tables read
- outcome_counts.parquet, outcome_measurements.parquet, outcomes.parquet, reported_event_totals.parquet, reported_events.parquet, result_groups.parquet, studies.parquet, ctgov_trial.parquet
Source ClinicalTrials.gov
Sources 2
- ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
- ClinicalTrials.govNo license stated
Each source's terms
- ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
- ClinicalTrials.govnone stated
ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions. The measures are ConductScience's calculation from them.
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