~59 spots leftby Mar 2026

Melatonin for Vaccine Response

(MAVRICS Trial)

Recruiting in Palo Alto (17 mi)
Overseen byJanine Danko, MD
Age: 18 - 65
Sex: Any
Travel: May Be Covered
Time Reimbursement: Varies
Trial Phase: Academic
Waitlist Available
Sponsor: Walter Reed National Military Medical Center
No Placebo Group

Trial Summary

What is the purpose of this trial?This trial will study if better sleep habits, understanding natural sleep cycles, and taking melatonin can help make the flu vaccine work better for people.

Eligibility Criteria

This trial is for adults aged 18-64 who can get a flu shot at a military hospital and are registered in the DEERS system. It's not for those with allergies to the flu vaccine, pregnant women, or individuals with immune-compromising conditions like HIV/AIDS, cancer, diabetes, significant heart disease or diagnosed sleep disorders.

Inclusion Criteria

I am between 18 and 64 years old.
Eligible to receive flu vaccination at a military hospital and DEERS eligible

Exclusion Criteria

I have not taken immune suppressants, chemotherapy, or sleep aids in the past 3 months.
Allergy or contraindication to getting flu vaccine
Pregnancy or likelihood of getting pregnant in the next few weeks
+1 more

Participant Groups

The study is looking into how sleep patterns and melatonin (a natural hormone) affect the body's response to the flu vaccine. Participants will be monitored using a Phillips Actiwatch Spectrum Plus device to track their sleep and activity rhythms.
2Treatment groups
Experimental Treatment
Active Control
Group I: Melatonin GroupExperimental Treatment2 Interventions
This group will get melatonin 5mg nightly
Group II: Control GroupActive Control1 Intervention
This group will not get any treatment (melatonin)

Find a Clinic Near You

Research Locations NearbySelect from list below to view details:
Naval Support ActivityBethesda, MD
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Who Is Running the Clinical Trial?

Walter Reed National Military Medical CenterLead Sponsor
Naval Medical Research CenterCollaborator

References