Recruitment

Recruitment Status
Recruiting
Estimated Enrollment
Same as current

Summary

Conditions
  • COVID-19
  • SARS CoV-2 Infection
  • Severe Acute Respiratory Syndrome
Type
Interventional
Phase
Phase 1
Design
Allocation: Non-RandomizedIntervention Model: Parallel AssignmentIntervention Model Description: ABNCoV2 is a virus-like particle vaccine. It will be administered as two intramuscular injections in groups of up to 9 volunteers. All subjects will receive a second vaccination with the same dose and formulation 4 weeks following the first vaccination. The pre-defined escalation schedule will start with 6 ?g ABNCoV2, followed by 12, 25 and 50 ?g with a maximum dose of 70 ?g. MF59-adjuvanted and non-adjuvanted formulations will be tested in parallel to detect superiority or futility of the MF59-adjuvanted against the non-adjuvanted formulation at the 6, 12 and 25 ?g dosage. Approval for further dose escalation and choice of adjuvant use will be provided by a safety monitoring committee (SMC), supported by pre-defined analyses of safety, tolerability and immunogenicity data at day 14 post-first-vaccination. Recruitment for the two best (safe, tolerable and most immunogenic) regimens will continue until 12 volunteers per regimen have been immunized.Masking: None (Open Label)Primary Purpose: Prevention

Participation Requirements

Age
Between 18 years and 55 years
Gender
Both males and females

Description

This first-in-human phase 1 trial of ABNCoV2 is a single center, sequential dose-escalation, open labelled trial to establish the safety and tolerability of two doses of ABNCoV2, formulated with and without MF59 in healthy, adult, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)-naïve vo...

This first-in-human phase 1 trial of ABNCoV2 is a single center, sequential dose-escalation, open labelled trial to establish the safety and tolerability of two doses of ABNCoV2, formulated with and without MF59 in healthy, adult, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)-naïve volunteers. The immunological objective of this trial is to identify a dosage that optimizes the immunogenicity-tolerability ratio 14 days following first vaccination with ABNCoV2. The trial will be carried out by the Radboud University Medical Center (Radboudumc). The trial involves first-in-human administration, dose escalation of ABNCoV2 and adjuvant selection. Volunteers will be screened for eligibility and receive two vaccinations by intramuscular injection. While we cannot predict with certainty the safety in human subjects, we have adopted a safety-orientated staggered trial design with ascending doses of ABNCoV2. Seven groups of volunteers (n=6) will receive a given dose of ABNCoV2, either with or without MF59, followed by a booster with the same dose and formulation four weeks after the first vaccination. All vaccinations will be given as intramuscular injection. The pre-defined escalation schedule will start with 6 ?g ABNCoV2, with a maximum dose of 70 ?g. Dose-escalation will proceed only in absence of protocol-defined safety signals. MF59-adjuvanted and non-adjuvanted formulations will be tested in parallel at the first three escalation steps (Group 1-3) to detect superiority or futility of the MF59-adjuvanted against the non-adjuvanted formulation. Up to forty-two (n=42) subjects will be enrolled, as well as one reserve subject per group. Safety follow-up will be done at following timepoints: baseline, day 1, day 2, day 7, day 14, day 25, day 29, day 30, day 35, day 42, day 70, day 119 and day 196 after first ABNCoV2 administration.

Tracking Information

NCT #
NCT04839146
Collaborators
European Union
Investigators
Principal Investigator: Benjamin Mordmüller, Prof Stichting Radboud university medical center