Understanding Immune Responses to COVID-19

This observational study aims to understand how your body's immune system (its defense against germs) responds to COVID-19, both during the infection and as you recover. Researchers will look at how these immune responses might lead to different outcomes, from mild symptoms to more severe illness. They will also search for genetic differences that might make some people more resistant to the virus or more likely to have a severe case. This study is collecting samples from people of all ages, from newborns to 99 years old, who have or are suspected of having COVID-19 or other respiratory viruses. The goal is to learn more about how our bodies fight off these infections.

Study design
This is an observational study planning to enroll up to 5000 participants. It involves collecting samples over time to understand immune responses.
What's involved
You would provide biological samples like blood, saliva, stool, or urine. You will not have study visits at the NIH.
Compensation
Not stated in the trial record.
Follow-up
The primary goals of the study are measured at the end of the study, but a specific follow-up duration is not provided.

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NCT04582903

Send-In Sample Collection for Comprehensive Analyses of Innate and Adaptive Immune Responses During Acute COVID-19 and Convalescence

Recruiting
Not specifiedAges 1–99Observational
National Institute of Allergy and Infectious Diseases (NIAID)
~5,000 participants
Updated 2026-01-23 on ClinicalTrials.gov

At a glance

Recruiting sites
1 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Characterization of the dynamic changes of innate and adaptive immune responses during SARS CoV 2 infection and convalescence.
Measured over End of Study
+5 more outcomes measured
COVID-19 Infection
1 sites across 1 states
Maryland1
  • Helen C Su, M.D. · PRINCIPAL_INVESTIGATOR · National Institute of Allergy and Infectious Diseases (NIAID)

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  • Characterization of the dynamic changes of innate and adaptive immune responses during SARS CoV 2 infection and convalescence.End of Study

    These endpoints were chosen to provide in depth molecularmeasurements of a wide variety of innate and adaptive host immuneresponses to a novel pathogen in heterogenous patients. This is anexploratory hypothesis generating study to identify findings for validation in future studies. These endpoints are needed to better understand pathogenic mechanisms, improve prognostic tools, optimize existing therapies, and identify new targets for treatment.

  • Identification of genetic variants that are associated with either severe/lethal COVID-19 or resistance to SARS CoV 2 infection.End of Study

    These endpoints were chosen to provide in depth molecular measurements of a wide variety of innate and adaptive host immune responses to a novel pathogen in heterogenous patients. This is an exploratory hypothesis generating study to identify findings for validation in future studies. These endpoints are needed to better understand pathogenic mechanisms, improve prognostic tools, optimize existing therapies, and identify new targets for treatment.

  • Measurement of proinflammatory/anti inflammatory cytokines produced during SARS CoV 2 infection and convalescence, including the IFN signature response.End of Study

    These endpoints were chosen to provide in depth molecular measurements of a wide variety of innate and adaptive host immune responses to a novel pathogen in heterogenous patients. This is an exploratory hypothesis generating study to identify findings for validation in future studies. These endpoints are needed to better understand pathogenic mechanisms, improve prognostic tools, optimize existing therapies, and identify new targets for treatment.

  • Survey of other potential blood proteomic biomarkers of disease.End of Study

    These endpoints were chosen to provide in depth molecular measurements of a wide variety of innate and adaptive host immune responses to a novel pathogen in heterogenous patients. This is an exploratory hypothesis generating study to identify findings for validation in future studies. These endpoints are needed to better understand pathogenic mechanisms, improve prognostic tools, optimize existing therapies, and identify new targets for treatment.

  • Characterization of serological responses against SARS CoV 2, other viruses or microbiota, and host antigens.End of Study

    These endpoints were chosen to provide in depth molecular measurements of a wide variety of innate and adaptive host immune responses to a novel pathogen in heterogenous patients. This is an exploratory hypothesis generating study to identify findings for validation in future studies. These endpoints are needed to better understand pathogenic mechanisms, improve prognostic tools, optimize existing therapies, and identify new targets for treatment.

  • Characterization of intrapatient SARS-CoV-2 genetic variation and evolution during infection and convalescence.End of Study

    These endpoints were chosen to provide in depth molecular measurements of a wide variety of innate and adaptive host immune responses to a novel pathogen in heterogenous patients. This is an exploratory hypothesis generating study to identify findings for validation in future studies. These endpoints are needed to better understand pathogenic mechanisms, improve prognostic tools, optimize existing therapies, and identify new targets for treatment.