NCT04996238

Brief Summary

This study aims to gain more insight in the immunological characteristics and immune response on a local level (the nose) and systemic level (the blood) of healthy people vaccinated with the current available COVID-19 messenger ribonucleic acid (mRNA; BNT162b2) and viral vector based (ChAdOx1) vaccines.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
218

participants targeted

Target at P50-P75 for not_applicable covid19

Timeline
Completed

Started Feb 2021

Typical duration for not_applicable covid19

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

February 11, 2021

Completed
5 months until next milestone

First Submitted

Initial submission to the registry

July 5, 2021

Completed
1 month until next milestone

First Posted

Study publicly available on registry

August 9, 2021

Completed
11 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 5, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

July 5, 2022

Completed
Last Updated

January 11, 2023

Status Verified

January 1, 2023

Enrollment Period

1.4 years

First QC Date

July 5, 2021

Last Update Submit

January 9, 2023

Conditions

Keywords

serumnasal secretionsimmune response

Outcome Measures

Primary Outcomes (1)

  • Change in SARS-CoV-2 neutralization antibody levels.

    In vitro qualitative determination of SARS-CoV-2 neutralization antibody in nasal secretions and serum.

    Nasal secretions and serum will be collected just before the first vaccination (T1: pre-vaccination) and between 14 and 30 days after the second vaccination (T2: post-vaccination)

Secondary Outcomes (8)

  • Change in tumor necrosis factor alpha (TNF-α) levels.

    Blood will be collected just before the first vaccination (T1: pre-vaccination) and between 14 and 30 days after the second vaccination (T2: post-vaccination)

  • Change in interferon gamma (IFN-γ) levels.

    Blood will be collected just before the first vaccination (T1: pre-vaccination) and between 14 and 30 days after the second vaccination (T2: post-vaccination)

  • Change in interleukin 2 (IL-2) levels.

    Blood will be collected just before the first vaccination (T1: pre-vaccination) and between 14 and 30 days after the second vaccination (T2: post-vaccination)

  • Change in interleukin 1 (IL-1) levels.

    Blood will be collected just before the first vaccination (T1: pre-vaccination) and between 14 and 30 days after the second vaccination (T2: post-vaccination)

  • Change in interleukin 18 (IL-18) levels.

    Blood will be collected just before the first vaccination (T1: pre-vaccination) and between 14 and 30 days after the second vaccination (T2: post-vaccination)

  • +3 more secondary outcomes

Study Arms (1)

Blood and nasal fluid sampling before and after COVID-19 vaccination

OTHER

Blood and nasal fluid will be collected just before the first vaccination (T1: pre-vaccination), between 14 and 30 days after the second vaccination (T2: post-vaccination), 6 months after the second vaccination (T3: 6 months post-vaccination), between 14 and 30 days after the third/booster vaccination (T4: post-booster-vaccination) and 6 months after the third/booster vaccination (T5: 6 months post-booster-vaccination)

Procedure: Blood and nasal fluid sampling before and after COVID-19 vaccination

Interventions

Blood and nasal fluid sampling take place just before the first COVID-19 vaccination and at 14-30 days after the second dose with the same vaccine. Sampling will be repeated at 6 months after the second vaccination, at 14-30 days after the third vaccination and at 6 months after the third vaccination. At all moments, a questionnaire is filled in.

Blood and nasal fluid sampling before and after COVID-19 vaccination

Eligibility Criteria

Age18 Years - 100 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Adult (18-100 years)

You may not qualify if:

  • People with a compromised immune system Active treatment with chemotherapy HIV infection with cluster of differentiation 4 (CD4) count below 200/µl Combined immunodeficiency Treatment with methylprednisolone \>16mg for more then 2 weeks Transplant patients Diagnosed Chronic Rhinosinusitis with Nasal Polyps
  • Known pregnancy at the time of screening
  • Inability to give informed consent or absence of legal representative who can give informed consent.
  • Any contra indication for receiving the SARS-CoV2 vaccination

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University Hospital Ghent

Ghent, East Flanders, 9860, Belgium

Location

MeSH Terms

Conditions

COVID-19

Interventions

Blood Specimen Collection

Condition Hierarchy (Ancestors)

Pneumonia, ViralPneumoniaRespiratory Tract InfectionsInfectionsVirus DiseasesCoronavirus InfectionsCoronaviridae InfectionsNidovirales InfectionsRNA Virus InfectionsLung DiseasesRespiratory Tract Diseases

Intervention Hierarchy (Ancestors)

Specimen HandlingClinical Laboratory TechniquesDiagnostic Techniques and ProceduresDiagnosisPuncturesSurgical Procedures, OperativeInvestigative Techniques

Study Officials

  • Linos Vandekerckhove, PhD

    University Hospital, Ghent

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
BASIC SCIENCE
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 5, 2021

First Posted

August 9, 2021

Study Start

February 11, 2021

Primary Completion

July 5, 2022

Study Completion

July 5, 2022

Last Updated

January 11, 2023

Record last verified: 2023-01

Locations