8 (rabbit IM, 4 injections days 1-57, plus 13-week recovery)
“and included a 13-week recovery period. Animals were allocated randomly to 4 groups of 10 animals each, and received intramuscular injections in the paravertebral muscles on Days 1, 15, 29 and 57.”
Rabbit IM repeat-dose (up to 4 injections at 2-week intervals, up to 3x human dose); rat DART; rat safety pharmacology
“The treatment regimen of up to 4 vaccine injections at 2 week intervals with up to three times the human dosage exceeds the total number of intended clinical injections.”