COVID-19 Vaccine Immunology Study in Finland

We are studying how different COVID-19 vaccines affect immune responses in various groups. This research may help us understand the need for boosters and how well vaccines work against different virus variants.

6-12 months Monitoring phase (IV)No Placebo Investigational Medicines InjectionInfectious DiseasesInternal Medicine

What diseases are being studied?

Health conditions and diseases that the clinical trial is designed to study and treat.

Who can participate in the clinical trial?

These questions help us understand your situation so we can let the trial team know whether you might be a potential match. This is not a medical evaluation and is not part of the official screening, the study doctor will make the final decision..

What medicines are being studied?

Medicines that are officially approved for use in the European Union and considered safe by EMA. These medicines are already on the market and may be tested for new conditions or populations.

Comirnaty Jn.1

Comirnaty Jn.1 is a vaccine used to help prevent COVID-19.

Comirnaty Omicron Xbb.1.5

Comirnaty Omicron XBB.1.5 is a COVID-19 vaccine updated to help prevent illness from the Omicron XBB.1.5 variant.

Nuvaxovid

Nuvaxovid is a vaccine used to prevent COVID-19 infection.

What active substances are being studied?

Active substances that are officially approved for use in the European Union and considered safe by EMA. These substances are already on the market and may be tested for new conditions or populations.

Bretovameran

Elasomeran

Elasomeran is a substance that helps prevent COVID-19 by teaching the immune system to recognize the coronavirus spike protein.

Expressed In Sf9 Cells Derived From Spodoptera Frugiperda

What experimental substances are being tested?

Experimental substances that are being investigated in this clinical trial. These are not yet approved for general use.

Covid-19

Spike Protein

What similar medicines might you know?

Don't worry if you don't know the medicines tested in the trial. There is a chance you have heard about the similar medicines. Check the list below to see if you are familiar with any of them.

Nuvaxovid Jn.1

Spikevax Bivalent Original/Omicron Ba.4-5

Where is the clinical trial being conducted?

Locations and medical facilities where this clinical trial is currently recruiting or conducting research. Select the locations where you would like to participate.

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Finnish Institute For Health And Welfare

Väestö -osasto, Terveysuhkien torjunta -yksikkö

Kannelmäki, Finland

Sponsor: Finnish Institute For Health And Welfare

Last updated: Nov 27, 2025

Disclaimer: Parts of this content have been automatically extracted from the EU Clinical Trials registry. While we strive for accuracy, please always contact the trial site or sponsor directly for correct and official information before making any decisions about participation. View on EU Clinical Trials.