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CompletedNCT04568863MELCOVIDUpdated Mar 18, 2021

Efficacy of Intravenous Melatonin on Mortality in Adult Patients Admitted to the Intensive Care Unit With COVID-19

A Phase 2 interventional study of Melatonin intravenous and Placebo intravenous in COVID-19, SARS-CoV 2 and Coronavirus Infection, sponsored by Pharmamel S.L.. Completed at 1 site in Spain. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2021-03-18.

Sponsored by Pharmamel S.L. · Phase 2, Interventional, and Treatment

From the registry’s dates

  • Registered 3 months after the study started (first participant enrolled Jun 2020, registered Sep 2020).
Phase
Phase 2
Study type
Interventional
Enrollment
18
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

There is an urgent need to evaluate effective treatments for COVID-19 patients. Melatonin has significant anti-inflammatory and antioxidant properties and it lacks of side-effects. This randomized controlled trial seeks to evaluate the efficacy of intravenous melatonin in reducing mortality in Covid-19 patients in the ICUs.

Read the detailed description

ICU COVID-19 patients show high risk of death mainly due to sepsis and respiratory disfunction. Prevention of these critical conditions is mandatory to reduce mortality and to improve patient's outcome.

Melatonin is an endogenous hormone involved not only in circadian rhythm control, but also in the cell protection due to its outstanding anti-inflammatory and antioxidative effects. High doses of melatonin have shown high efficacy against bacterial (sepsis) and viral infections. Melatonin is a safe product that consistently has shown lack of side-effects when it is administered to humans.

SARS-CoV 2 infection may yield severe forms of the disease that require the patients admission to the ICU. These patients may develop an excessive inflammatory response and a burst of free radicals, constituting the major cause of death in these subjects.

Our hypothesis is that high doses of melatonin intravenously administered to COVID-19 ICU patients might reach enough blood levels able to prevent/counteract the developing of sepsis and the production of free radicals, reducing mortality and hospital stay.

02

Conditions studied

  • COVID-19
  • SARS-CoV 2
  • Coronavirus Infection

Keywords

  • Melatonin intravenous
  • Placebo intravenous
  • ICU patients
  • COVID-19
03

In context

COVID-19

7,640 studies on the registry are indexed under COVID-19; 488 are open to participants now.

This study's enrollment of 18 is below the median of 100 across 4,099 interventional studies indexed under COVID-19.

Browse COVID-19 studies →

Lead sponsor

This is the only study on the registry with Pharmamel S.L. as lead sponsor.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Patient, family member or legal guardian has provided written Informed Consent.
  • Age ε 18 years.
  • Confirmed SARS-CoV-2 infection with compatible symptoms AND a positive RT-PCR.
  • Admission to the ICU with acute hypoxemic respiratory failure attributed to SARS-CoV-2 infection.
  • ICU length of stay of less than 7 days prior to randomization with or without MV and without signs of improvement in respiratory failure (MURRAY score at randomization greater or equal to the MURRAY score at ICU admission).

Exclusion criteria

Exclusion Criteria:

  • Participant in a different COVID-19 study in which the study drug is under clinical development and hasn't been previously authorized for commercialization.
  • Liver enzymes > 5 times the upper normal range.
  • Chronic kidney disease with GFR \< 30 mL/min/1.73 m2 (stage 4 or greater) or need for hemodialysis.
  • Pregnancy. A pregnancy test will be performed on every woman younger than 55 years of age prior to inclusion.
  • Terminal surgical or medical illness.
  • Autoimmune disease.
  • Any patient condition that can prevent the study procedures to be carried out at the treating physician's judgement.
05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
18 participants (actual)

Study arms

  • Experimental
    Melatonin

    (12 patients): 7 days of 5 mg per Kg of actual body weight per day of intravenous melatonin every 6 hours. Maximum daily dose 500 mg per day.

    Drug: Melatonin intravenous

  • Placebo comparator
    Placebo

    (6 patients): 7 days of 5 mg per Kg of actual body weight per day of intravenous identically-looking placebo every 6 hours.

    Drug: Placebo intravenous

Interventions

  • DrugMelatonin intravenous

    7 days of 5 mg per Kg of actual body weight per day of intravenous melatonin every 6 hours. Maximum daily dose 500 mg per day.

  • DrugPlacebo intravenous

    7 days of 5 mg per Kg of actual body weight per day of intravenous identically-looking placebo every 6 hours.

06

What researchers measure

Primary outcomes

  1. Mortality

    Mortality in each study group represented in frequency and time-to-event at day 28 after randomization

    Time frame: one month

07

Study locations

1 site
  • Hospital Universitario La Paz
    Madrid, 28046, Spain
08

References and documents

Publications

  • Rodriguez-Rubio M, Figueira JC, Acuna-Castroviejo D, Borobia AM, Escames G, de la Oliva P. A phase II, single-center, double-blind, randomized placebo-controlled trial to explore the efficacy and safety of intravenous melatonin in patients with COVID-19 admitted to the intensive care unit (MelCOVID study): a structured summary of a study protocol for a randomized controlled trial. Trials. 2020 Aug 5;21(1):699. doi: 10.1186/s13063-020-04632-4. PubMed 32758298 ↗
  • Acuna-Castroviejo D, Escames G, Figueira JC, de la Oliva P, Borobia AM, Acuna-Fernandez C. Clinical trial to test the efficacy of melatonin in COVID-19. J Pineal Res. 2020 Oct;69(3):e12683. doi: 10.1111/jpi.12683. Epub 2020 Aug 8. PubMed 32770854 ↗

Individual participant data

Plan to share: No

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 18, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04568863
Lead sponsor
Pharmamel S.L.
Collaborators
Hospital Universitario La Paz, Instituto de Investigación Hospital Universitario La Paz
Responsible party
Sponsor
First posted
Sep 29, 2020
Start date
Jun 20, 2020
Primary completion
Nov 30, 2020
Completion
Nov 30, 2020
Last update
Mar 18, 2021

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Sep 2020. You cannot join it, but the record below documents what was studied.

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