No­vavax makes a case for a do-over on its failed RSV vac­cine — but it's an up­hill climb

Ten months af­ter No­vavax shares $NVAX were rout­ed by the fail­ure of its RSV F vac­cine in Phase III in old­er sub­jects, the biotech is look­ing for a do-over. And the ex­ec­u­tive crew is try­ing to make a case that it can suc­ceed where be­fore it failed bad­ly.

The com­pa­ny cob­bled to­geth­er topline claims on safe­ty and im­muno­genic­i­ty da­ta from a Phase II tri­al, some post hoc analy­sis from oth­er stud­ies, an as­ser­tion that an ad­ju­vant ap­proach would work bet­ter, and plans for a new mid-stage study to launch in old­er pa­tients next year as it built its case that it knows now how to move ahead with a new de­vel­op­ment plan that can suc­ceed in the wake of a nasty flop.

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