Hal Barron (GSK via YouTube)

GSK de­clares a big win with pos­i­tive topline re­sults for its adult RSV vac­cine. But the ju­ry's still out on bot­tom line ef­fi­ca­cy

Em­ma Walm­s­ley’s bet on mak­ing GSK a pure play Big Phar­ma in­no­va­tor just cleared a ma­jor mile­stone. But the GSK team is not home free yet.

The glob­al play­er an­nounced that its adult RSV vac­cine cleared a Phase III tri­al — AReSVi 006 — of­fer­ing “ex­cep­tion­al pro­tec­tion” to 25,000 en­rollees over the age of 60, set­ting up a planned roll­out with reg­u­la­tors. But while GSK cheered this as a clear suc­cess, and a land­mark first, it’s keep­ing the key fig­ure on ef­fi­ca­cy in pre­vent­ing se­vere in­fec­tions un­der wraps for now, leav­ing the next big ques­tion of how this will look to reg­u­la­tors and in­dus­try ri­vals still unan­swered.

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Alexandria Real Estate Equities

Cambridge, MA, USA