Table of Contents
- Trial overview
- Study design and phase
- Who the study involved
- Main outcome measured
- Vaccines studied in the trial
- What the results mean for patients
Trial overview
The available clinical trial is titled COVID-19 vaccine immunology and is listed as completed.[1] It studies COVID-19 infection and looks at immune responses after vaccination with different vaccine formulations.[1]
Study design and phase
This was an interventional study, which means researchers gave vaccine products and then measured the results.[1] The trial was in Phase 3, a later stage of clinical testing that usually includes a larger number of people and checks how well a vaccine response performs.[1]
The study planned to enroll 4000 participants.[1]
Who the study involved
The trial data describes vaccine recipients in the setting of COVID-19 infection.[1] The source material does not provide a full list of eligibility rules, so only the trial-level target population can be stated here.[1]
Main outcome measured
The main outcome was the proportion of seropositive subjects with an antibody level above the target level at 6 months after two doses against the prevailing virus variant.[1] In simple terms, the researchers wanted to see how many people had antibodies in their blood and whether those antibody levels reached the planned target.[1]
Vaccines studied in the trial
The study compared several COVID-19 vaccine products, including BIMERVAX LP.8.1, Spikevax bivalent Original/Omicron BA.1, Comirnaty, Spikevax 50 micrograms, Comirnaty JN.1, Nuvaxovid, COVID-19, VIRAL VECTOR, NON-REPLICATING, Comirnaty Original/Omicron BA.4-5, Comirnaty Omicron XBB.1.5, and Comirnaty LP.8.1.[1] All were given by injection into a muscle.[1]
What the results mean for patients
This trial was designed to compare immune responses after different vaccine formulations, not to describe long-term disease treatment.[1] The key patient-focused question is whether a vaccine product can help more people reach the target antibody level after vaccination.[1] Because the study is completed, it adds evidence about how these vaccines performed in the tested group.[1]



