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Recruiting NCT04579588

NCT04579588 Understanding Immunity to the Flu Vaccine in COVID-19 Patients

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Clinical Trial Summary
NCT ID NCT04579588
Status Recruiting
Phase
Sponsor Stanford University
Condition Corona Virus Infection
Study Type OBSERVATIONAL
Enrollment 230 participants
Start Date 2020-10-29
Primary Completion 2028-04

Eligibility & Interventions

Sex All sexes
Min Age 9 Years
Max Age 64 Years
Study Type OBSERVATIONAL
Interventions
Flu shot

Eligibility Fast-Check

Enter your details for a quick preliminary check. This does not replace medical advice.

What to Expect as a Participant

This is an observational study. You will not receive an experimental treatment; researchers will collect data based on your existing condition or standard treatment.

This trial targets 230 participants in total. It began in 2020-10-29 with a primary completion date of 2028-04.

⚠ This information is for research awareness only. Always consult your physician before joining any clinical trial. Participation is voluntary and you may withdraw at any time.

Brief Summary

The purpose of this study is to measure immunity to the flu vaccine over time in patients who have had COVID-19 and may have other medical conditions including obesity, type 2 diabetes, chronic fatigue, or long-term COVID-19 symptoms. Adults and children (age 9 to 64) who had been diagnosed with COVID-19 as well as controls without COVID-19 will be invited to participate in this study.

Eligibility Criteria

Inclusion Criteria: * Age 9 through 64 years * Diagnosed with COVID-19 at least 2 months prior enrollment * Patients with or without obesity, diabetes, chronic fatigue and/or long term COVID-19 symptoms * Patients without COVID-19 diagnosis for controls Exclusion Criteria: * Received the influenza vaccine less than 4 months ago * Pregnant or lactating * Patients with special risks attendant to venipuncture * Use of immunomodulatory medications that may impact vaccine immune response per clinician's judgment * Contraindication to the flu vaccine * Immunodeficiency or autoimmune disease that may impact vaccine immune responses per clinician's judgement

Contact & Investigator

Central Contact

SNP Center Inquiry

✉ snpcenterallergy_inquiry@stanford.edu

📞 (650) 521-7237

Principal Investigator

Sayantani Sindher, MD

PRINCIPAL INVESTIGATOR

Stanford University

Frequently Asked Questions

Who can join the NCT04579588 clinical trial?

This trial is open to participants of all sexes, aged 9 Years or older, up to 64 Years, studying Corona Virus Infection. Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.

Is NCT04579588 currently recruiting?

Yes, NCT04579588 is actively recruiting participants. Contact the research team at snpcenterallergy_inquiry@stanford.edu for enrollment information.

Where is the NCT04579588 trial being conducted?

This trial is being conducted at Palo Alto, United States.

Who is sponsoring the NCT04579588 clinical trial?

NCT04579588 is sponsored by Stanford University. The principal investigator is Sayantani Sindher, MD at Stanford University. The trial plans to enroll 230 participants.

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ClinicalMetric — Independent clinical trial intelligence platform. Not affiliated with NIH, ClinicalTrials.gov, the U.S. FDA, or any pharmaceutical company, hospital, or clinical research organization. Trial data is sourced from ClinicalTrials.gov for informational purposes only and does not constitute medical advice. Do not make any treatment, enrollment, or health decisions based solely on information found here — always consult a qualified healthcare professional. Full Disclaimer  ·  Last Reviewed: July 2026  ·  Data Methodology