ABNCoV2 Vaccine in Adult Subjects Previously Vaccinated for SARS-CoV-2
- Registration Number
- NCT05329220
- Lead Sponsor
- Bavarian Nordic
- Brief Summary
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.
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 4205
- Age ≥18 years at screening.
- Documented, previous completion of a primary vaccination regimen with locally authorized SARS-CoV-2 vaccine(s) or completion of primary plus 1 boost vaccination, with last vaccination at least 3 months before screening. "Locally authorized" SARS-CoV-2 vaccines are those that have received market approval or emergency use authorization in the country of enrollment.
- Absence of acute medical illness, significant physical exam findings, or laboratory abnormalities, as determined by the investigator.
- Informed consent, provided by the subject prior to performance of any trial-specific procedures; the subject has read, signed, and dated an informed consent form (ICF), having been advised of the risks and benefits of the trial in a language understood by the subject.
- Body mass index (BMI) ≥18.5 and <40.
- For female subjects of childbearing potential (WOCBP) and male subjects who are sexually active with a WOCBP, agreement to use an effective method of birth control from at least 30 days prior to administration of the vaccine until 30 days after the vaccination. A woman is considered of childbearing potential unless post-menopausal (defined as ≥12 months without a menstrual period at screening) or surgically sterilized (bilateral oophorectomy, bilateral tubal ligation, hysterectomy). Acceptable contraception methods are restricted to abstinence (only acceptable if refraining from heterosexual intercourse during the period of 30 days prior to administration of the vaccine until 30 days after the vaccination), double barrier contraceptives, vasectomy, intrauterine contraceptive devices, or licensed hormonal products.
- For WOCBP, a negative serum pregnancy test at screening.
- Negative tests for human immunodeficiency virus antibody (anti HIV), hepatitis B surface antigen (HBsAG), and antibody to hepatitis C virus (HCV).
- History of COVID 19 infection within the last 3 months before screening.
- Previous vaccination with a SARS-CoV-2 vaccine other than those mentioned in inclusion criterion #2.
- Positive test for SARS-CoV-2 infection at screening.
- Breastfeeding with intent to continue.
- Acute or chronic medical condition that, in the opinion of the investigator, would render the trial procedures unsafe or would interfere with the evaluation of the responses.
- History of myocarditis or pericarditis.
- History of or active autoimmune disease. History of Guillain-Barré syndrome or Reye's syndrome. Persons with vitiligo or thyroid disease taking thyroid replacement are not excluded.
- Known or suspected impairment of immunologic functions including, but not limited to, known immunodeficiency syndrome.
- History of malignancy other than squamous cell or basal cell skin cancer, unless there has been surgical excision at least 6 months prior to screening that is considered to have achieved cure. Subjects with history of skin cancer must not be vaccinated at the previous tumor site.
- Laboratory parameters (such as complete blood count, serum biochemistry including aspartate aminotransferase [AST], alanine amino transferase [ALT], alkaline phosphokinase [ALP], bilirubin, or creatinine values), pulse rate, or blood pressure outside normal range at screening and deemed clinically relevant by the investigator.
- Clinically significant mental disorder not adequately controlled by medical treatment.
- Active or recent history (within 6 months before screening) of chronic alcohol abuse, or illicit drug abuse.
- History of allergic disease or reactions likely to be exacerbated by any component of the vaccine.
- History of anaphylaxis or severe allergic reaction to any vaccine.
- History of any vaccinations or plan to receive any vaccinations with a live vaccine within 30 days prior to or after trial vaccination.
- History of any vaccinations or plan to receive any vaccinations with a non-live vaccine within 14 days prior to or after trial vaccination.
- Recent blood donation (including platelets, plasma and red blood cells) within 4 weeks prior to screening, or planned blood donations during the active phase of the trial.
- Chronic systemic administration (defined as more than 14 days) of >5 mg prednisone (or equivalent)/day, or any other immune-modifying drugs during a period starting 3 months prior to administration of the vaccine and ending 4 weeks after vaccination. The use of topical, inhaled, ophthalmic and nasal glucocorticoids is allowed.
- History of organ transplantation, whether or not accompanied by chronic immunosuppressive therapy.
- Administration or planned administration of immunoglobulins and/or any blood products during a period starting 3 months prior to administration of the vaccine and ending 4 weeks after vaccination. Receipt of packed red blood cells given for an emergency indication in an otherwise healthy person, and not required as ongoing treatment is not exclusionary (for example packed red blood cells given in emergency during an elective surgery).
- Use of any investigational or non-registered drug or vaccine other than the trial vaccine within 30 days preceding the administration of trial vaccine, or planned administration of such a drug or vaccine throughout the trial.
- Involvement in this trial as site personnel.
- Known bleeding disorder that, in the opinion of the investigator, would contraindicate intramuscular injection.
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- PARALLEL
- Arm && Interventions
Group Intervention Description Comirnaty Comirnaty Comirnaty ABNCoV2 100μg single dose ABNCoV2 ABNCoV2 100μg single dose
- Primary Outcome Measures
Name Time Method Neutralizing Antibody Titers Against the SARS-CoV-2 Index Virus (Wuhan Wild Type Isolate) at 2 Weeks After Trial Vaccination 2 weeks after the single trial vaccination occurring on Day 1 The primary endpoint was SARS-CoV-2 index virus (Wuhan wild type isolate) neutralizing antibodies assessed at 2 weeks after trial vaccination, for subjects in the Immunogenicity Analysis Sets in Part A Cohort 1 (adult subjects who previously completed primary vaccination at least 3 months prior to the screening visit) and Part A Cohort 2 (adult subjects who have completed primary vaccination and have received 1 booster vaccination).
- Secondary Outcome Measures
Name Time Method Neutralizing Antibody Titers Against the SARS-CoV-2 Variants of Concern (Omicron Variants BA.4/BA.5 and XBB.1.5) at 2 Weeks After Trial Vaccination 2 weeks after the single trial vaccination occurring on Day 1 The secondary endpoint was SARS-CoV-2 variants of concern (Omicron Variant BA.4/BA.5 and XBB.1.5) pseudovirus or virus neutralizing antibodies assessed at 2 weeks after trial vaccination, for subjects in the Immunogenicity Analysis Sets in Part A Cohort 1 (adult subjects who previously completed primary vaccination at least 3 months prior to the screening visit) and Part A Cohort 2 (adult subjects who have completed primary vaccination and have received 1 booster vaccination.
Neutralizing Antibody Titers Against the SARS-CoV-2 Index Virus (Wuhan Wild Type Isolate) at 2 Weeks After Trial Vaccination [Time Frame: 2 Weeks After the Single Trial Vaccination Occurring on Day 1] 2 weeks after the single trial vaccination occurring on Day 1 The secondary endpoint was SARS-CoV-2 index virus (Wuhan wild type isolate) neutralizing antibodies assessed at 2 weeks after trial vaccination, for subjects in the Immunogenicity Analysis Sets in Part B Cohort 1 (adult subjects who previously completed primary vaccination at least 3 months prior to the screening visit) and Part B Cohort 2 (adult subjects who have completed primary vaccination and have received 1 booster vaccination).
Safety and Tolerability of the ABNCoV2 Vaccine as Measured by the Frequency of Solicited and Unsolicited Adverse Events Occurring During or After the Trial Vaccination. Active trial period is from vaccination until 28 to 35 days after vaccination. Entire trial period is from vaccination until 182 to 196 days after vaccination. Solicited events are reported if occurring within 8 days following vaccination. The number and percent of subjects who report:
* SAEs or AESIs assessed as related to trial vaccine during the entire trial period, which includes both the active trial phase and follow-up.
* Grade 3 or higher AEs assessed as related to trial vaccine in the 8 day period starting with the day of vaccination.
* SAEs, AESIs or MAAEs, regardless of relationship, during the active trial phase.
* SAE, AESI or MAAEs, regardless of relationship, during the entire trial period.
* Grade 3 or higher AEs assessed as related to trial vaccine during the active trial phase.
* Solicited local AEs in the 8 day period starting with the day of vaccination.
* Solicited general AEs in the 8 day period starting with the day of vaccination.
Solicited event grading based on FDA 2007 Guidance for industry: toxicity grading scale for healthy adult and adolescent volunteers enrolled in preventive vaccine clinical trials, where Grade 1 is Mild and Grade 4 is Life-Threatening and the worst outcome.
Trial Locations
- Locations (47)
Accel Research Site - NeuroStudies.net, LLC
🇺🇸Decatur, Georgia, United States
DM Clinical Research
🇺🇸Sugar Land, Texas, United States
Meridian Clinical Research - Family Practice
🇺🇸Portsmouth, Virginia, United States
Ventavia Research Group
🇺🇸Houston, Texas, United States
Atlanta Center for Medical Research - CenExel ACMR
🇺🇸Atlanta, Georgia, United States
Carolina Institute for Clinical Research
🇺🇸Fayetteville, North Carolina, United States
Women's Healthcare Research Corporation
🇺🇸San Diego, California, United States
Suncoast Research Group LLC
🇺🇸Miami, Florida, United States
Suncoast Research Associates LLC
🇺🇸Miami, Florida, United States
Emerging Medical Research, LLC
🇺🇸Durham, North Carolina, United States
Aarhus Universitetshospital
🇩🇰Aarhus, Denmark
Meridian Clinical Research , LLC
🇺🇸Grand Island, Nebraska, United States
ClinSearch, LLC
🇺🇸Chattanooga, Tennessee, United States
Tucson Neuroscience Research - M3 WR
🇺🇸Tucson, Arizona, United States
Private Practice Dr Jean Benoit Martinot
🇧🇪Erpent, Belgium
Meridian Clinical Research LLC
🇺🇸Lincoln, Nebraska, United States
Centrum voor de evaluatie van vaccinaties
🇧🇪Edegem, Belgium
Arizona Clinical Trials
🇺🇸Mesa, Arizona, United States
Achieve Clinical Research LLC d/b/a Accel Research Sites
🇺🇸Birmingham, Alabama, United States
Quality Clinical Research, Inc.
🇺🇸Omaha, Nebraska, United States
Wr-Pri, Llc
🇺🇸Los Alamitos, California, United States
PRI, LLC - Newport Beach - M3 WR
🇺🇸Newport Beach, California, United States
FOMAT Medical Research
🇺🇸Oxnard, California, United States
Medical Center For Clinical Research
🇺🇸San Diego, California, United States
Tekton Research
🇺🇸Beaumont, Texas, United States
Accel Research Sites
🇺🇸Maitland, Florida, United States
Clinical Site Partners
🇺🇸Winter Park, Florida, United States
Columbus Regional Research Institute at Talbotton
🇺🇸Columbus, Georgia, United States
TrueBlue Clinical Research
🇺🇸Tampa, Florida, United States
Mount Vernon Clinical Research, LLC
🇺🇸Sandy Springs, Georgia, United States
Meridian Clinical Research, LLC
🇺🇸Cincinnati, Ohio, United States
Meridian Clinical Research
🇺🇸Binghamton, New York, United States
AES - DRS - Synexus Clinical Research US, Inc.
🇺🇸Evansville, Indiana, United States
CBH Health - CenExel CBH
🇺🇸Gaithersburg, Maryland, United States
Sundance Clinical Research
🇺🇸Saint Louis, Missouri, United States
M3 Wake Research, Inc
🇺🇸Raleigh, North Carolina, United States
Global Medical Research
🇺🇸Dallas, Texas, United States
Instituut voor Tropische Geneeskunde
🇧🇪Antwerp, Belgium
Aalborg Universitetshospital
🇩🇰Aalborg, Denmark
Centrum voor vaccinologie (CEVAC)
🇧🇪Gent, Belgium
Office of Marc De Meulemeester
🇧🇪Gozée, Belgium
Regionshospitalet Gødstrup, Medicinsk afdeling, Klinik for Infektionssygdomme
🇩🇰Herning, Denmark
Nordsjællands Hospital, Hillerød, Lunge- og Infektionsmedicinsk Afdeling
🇩🇰Hillerød, Denmark
Bispebjerg Hospital, Afdeling for Lunge- og Infektionssygdomme
🇩🇰Kobenhavn, Denmark
Hvidovre Hospital, Infektionsmedicinsk afd.
🇩🇰Hvidovre, Denmark
Odense Universitetshospital, Q, Infektionsmedicinsk Afdeling
🇩🇰Odense, Denmark
Sjællands Universitetshospital
🇩🇰Roskilde, Denmark