COVID-19 Clinical Trial
Official title:
Phase IIb, Randomized, Double-blind, Non-inferior, Multicenter Study to Evaluate the Safety and Immunogenicity of the Self-replicating Nanoparticle Carrier Replicon RNA Carrier (repRNA) Vaccine in Adults 18 to 65 Years of Age
A multicenter, randomized, double-blind, active comparator, non-inferiority, multicenter IIb clinical trial to compare the safety and immunogenicity of two dose levels of the MCTI CIMATEC HDT RNA Vaccine against two authorized COVID-19 vaccines in Brazil (Comirnaty - Pfizer and Covishield - Oxford/AstraZeneca) in 300 participants. Each vaccine will be provided as a single booster vaccine in adults aged 18 to 65 years previously immunized with both vaccines (Comirnaty - Pfizer and Covishield - Oxford/Astrazen). The investigational product MCTI C HDT will be administered in one of the two doses evaluated (5µg and 10 µg). The comparator products will be Comirnaty - Pfizer and Covishield - Oxford/AstraZeneca. The primary outcomes will be the number of participants with a 2-fold increase or more on average by titers of neutralizing D64G pseudovirus strain (pNT50) and comparison of titers generated by 5µg and 10µg doses of MCTI-CIMATEC-HDT RNA Vaccine.
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