GoofGoof
Premium Member
Yes, their booster trial used 50mg dose instead of the full 100mgs. From the attached:Have they even started half dose booster trials? The article makes it seem like the move to half dose is mostly to get 2x the booster doses out of the same production.
The Phase 2 study of mRNA-1273 was amended to offer a booster dose of mRNA-1273 at the 50 µg dose level to interested participants 6 months following their second dose (n=344). Neutralizing antibody titers had waned significantly prior to boosting at approximately 6 months. A booster dose of mRNA-1273 at the 50 µg dose level boosted neutralizing titers significantly above the Phase 3 benchmark. After a third dose, a similar level of neutralizing titers was achieved across age groups, notably in older adults (ages 65 and above). The safety profile following dose 3 was similar to that observed previously for dose 2 of mRNA-1273. These data will be submitted to a peer-reviewed publication.
An additional analysis showed that a booster dose of mRNA-1273 at the 50 µg dose level induced robust antibody responses and significantly increased geometric mean titers (GMT) for all variants of concern including Beta (B.1.351) by 32- fold, Gamma (P.1) by 43.6-fold and Delta (B.1.617.2) by 42.3-fold.
Moderna Announces Submission of Initial Data to U.S. FDA for Its COVID-19 Vaccine Booster
CAMBRIDGE, Mass., September 01, 2021--Moderna announces submission of initial data to U.S. FDA for its COVID-19 vaccine booster.
finance.yahoo.com