J&J of­fers PhI/IIa da­ta show­ing its sin­gle-dose vac­cine can stir up suf­fi­cient im­mune re­sponse

Days af­ter J&J dosed the first par­tic­i­pants of its Phase III EN­SEM­BLE tri­al, the phar­ma gi­ant has de­tailed the ear­ly-stage da­ta that gave them con­fi­dence in a sin­gle-dose reg­i­men.

Test­ing two dose lev­els ei­ther as a sin­gle dose or in a two-dose sched­ule spaced by 56 days in, the sci­en­tists from Janssen, the J&J sub­sidiary de­vel­op­ing its vac­cine, re­port­ed that the low dose in­duced a sim­i­lar im­mune re­sponse as the high dose. The in­ter­im Phase I/IIa re­sults were post­ed in a preprint on medRx­iv.

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