Independent directory Public ClinicalTrials.gov records United States
ClinicalTrials.gov record
Completed Phase 3 Interventional Accepts healthy volunteers Results available

ABNCoV2 Vaccine in Adult Subjects Previously Vaccinated for SARS-CoV-2

ClinicalTrials.gov ID: NCT05329220

Public ClinicalTrials.gov record NCT05329220. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Oct 27, 2026, 6:51 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

Evaluation of the Immunogenicity, Safety, and Tolerability of a Single Dose of ABNCoV2 Vaccine in Adult Subjects Previously Vaccinated for SARS-CoV-2: a Phase 3 Trial in Two Parts

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

This trial is composed of a randomized, double-blind, active controlled component (Part A) and an open-label, single-arm component (Part B) conducted in parallel. Part A is designed to compare vaccination with a single 100 µg dose of ABNCoV2 to a single 30 µg adult booster dose of Comirnaty (active control) in adult subjects who either previously completed primary vaccination (Cohort 1) or have already received 1 booster dose (Cohort 2) of SARS-CoV-2 locally authorized vaccine(s), and whose last locally authorized SARS-CoV-2 vaccination was at least 3 months prior to the screening visit. Subjects will be randomized in a 1:1 ratio to receive either ABNCoV2 or Comirnaty. Part B is designed to collect ABNCoV2 safety and tolerability data from a larger population of adult subjects, as well as additional immunogenicity data from a subset. Part B involves vaccination with the same single 100 µg dose of ABNCoV2 in the same population of adult subjects as the randomized component, and subjects will similarly be enrolled into 2 cohorts according to whether they have completed primary vaccination only or primary plus booster vaccination.

Study identification

NCT ID
NCT05329220
Recruitment status
Completed
Study type
Interventional
Phase
Phase 3
Lead sponsor
Bavarian Nordic
Industry
Enrollment
4,205 participants

Conditions and interventions

Interventions

Biological

Eligibility (public fields only)

Age range
18 Years and older
Sex
All
Healthy volunteers
Accepts healthy volunteers

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Aug 30, 2022 (Actual)
Primary completion
Mar 15, 2023 (Actual)
Completion
Oct 5, 2023 (Actual)
Last update posted
Feb 24, 2025

2022 – 2023

United States locations

U.S. sites
44
U.S. states
18
U.S. cities
40
Facility City State ZIP Site status
Achieve Clinical Research LLC d/b/a Accel Research Sites Birmingham Alabama 35216 —
Arizona Clinical Trials Mesa Arizona 85210 —
Tucson Neuroscience Research - M3 WR Tucson Arizona 85710 —
Wr-Pri, Llc Los Alamitos California 90720 —
PRI, LLC - Newport Beach - M3 WR Newport Beach California 92660 —
FOMAT Medical Research Oxnard California 93030 —
Women's Healthcare Research Corporation San Diego California 92111 —
Medical Center For Clinical Research San Diego California 92120 —
Tekton Research Fort Collins Colorado 80525 —
Clinical Site Partners Leesburg Florida 34748 —
Accel Research Sites Maitland Florida 32751 —
Suncoast Research Group LLC Miami Florida 33135 —
Suncoast Research Associates LLC Miami Florida 33173 —
Clinical Site Partners Miami Florida 33186 —
TrueBlue Clinical Research Tampa Florida 33609 —
Clinical Site Partners Winter Park Florida 32789 —
Atlanta Center for Medical Research - CenExel ACMR Atlanta Georgia 30331 —
Tekton Research Chamblee Georgia 30341 —
Columbus Regional Research Institute at Talbotton Columbus Georgia 31904 —
Accel Research Site - NeuroStudies.net, LLC Decatur Georgia 30030 —
Mount Vernon Clinical Research, LLC Sandy Springs Georgia 30328 —
Meridian Clinical Research, LLC Savannah Georgia 31406 —
AES - DRS - Synexus Clinical Research US, Inc. Evansville Indiana 47714 —
Meridian Clinical Research Sioux City Iowa 51106 —
CBH Health - CenExel CBH Gaithersburg Maryland 20877 —
Sundance Clinical Research St Louis Missouri 63141 —
Meridian Clinical Research , LLC Grand Island Nebraska 68803 —
Meridian Clinical Research LLC Lincoln Nebraska 68510 —
Quality Clinical Research, Inc. Omaha Nebraska 68114 —
Meridian Clinical Research Omaha Nebraska 68134 —
Meridian Clinical Research Binghamton New York 13901 —
Emerging Medical Research, LLC Durham North Carolina 27704 —
Carolina Institute for Clinical Research Fayetteville North Carolina 28303 —
M3 Wake Research, Inc Raleigh North Carolina 27612 —
Meridian Clinical Research, LLC Cincinnati Ohio 45219 —
Tekton Research Edmond Oklahoma 73013 —
ClinSearch, LLC Chattanooga Tennessee 37421 —
Tekton Research Austin Texas 78745 —
Tekton Research Beaumont Texas 77706 —
Global Medical Research Dallas Texas 75224 —
Ventavia Research Group Fort Worth Texas 76104 —
Ventavia Research Group Houston Texas 77008 —
DM Clinical Research Sugar Land Texas 77478 —
Meridian Clinical Research - Family Practice Portsmouth Virginia 23703 —

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 13 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT05329220, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Feb 24, 2025 · Synced Oct 27, 2026

Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.

Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT05329220 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →