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Clinical Trial Summary

To evaluate the safety and immunogenicity of DelNS1-2019-nCoV-RBD-OPT1 as booster vaccine for COVID-19 in healthy adults who have received 2 doses of BNT162b2


Clinical Trial Description

This is a randomized, double-blinded, placebo-controlled study to evaluate the safety and immunogenicity of DelNS1-2019-nCoV-RBD-OPT1 as booster vaccine for COVID-19 in healthy adults who have received 2 doses of BNT162b2. Each subject will receive 2 vaccinations or matching placebo 3 weeks apart. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT05200741
Study type Interventional
Source The University of Hong Kong
Contact Volunteer Resource Centre
Phone 85296812309
Email ctcvrc@hku.hk
Status Recruiting
Phase Phase 2
Start date February 8, 2022
Completion date February 2024

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