# Mucosal Immunity in Terms of SARS-CoV-2 Antibodies in Saliva After COVID-19 Infection and Vaccination

> **NCT04842305** · — · UNKNOWN · sponsor: **Lenanrt Friis-Hansen** · enrollment: 500 (estimated)

## Conditions studied

- Covid19

## Interventions

- **DIAGNOSTIC_TEST:** Blood- and saliva tests

## Key facts

- **NCT ID:** NCT04842305
- **Lead sponsor:** Lenanrt Friis-Hansen
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** UNKNOWN
- **Start date:** 2021-04
- **Primary completion:** 2021-05
- **Final completion:** 2024-03-15
- **Target enrollment:** 500 (ESTIMATED)
- **Last updated:** 2021-04-13


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04842305

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04842305, "Mucosal Immunity in Terms of SARS-CoV-2 Antibodies in Saliva After COVID-19 Infection and Vaccination". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT04842305. Licensed CC0.

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