Lat­est J&J-part­nered Leg­end Biotech da­ta spot­light con­tin­ued high re­sponse rate but 10 pa­tient deaths

Leg­end Biotech has has a good three years ever since the then-lit­tle known biotech un­veiled a round of BC­MA CAR-T da­ta at AS­CO. It helped net them a part­ner­ship with J&J and, more re­cent­ly, one of biotech his­to­ry’s biggest IPOs.

Now, the Nan­jing-based biotech un­veiled their largest set of da­ta for the ther­a­py, show­ing in­ter­im re­sults from a piv­otal US study con­duct­ed with J&J. The da­ta af­firmed the drug’s now well-doc­u­ment­ed ef­fi­ca­cy, with a 94% re­sponse rate and a 55% com­plete re­sponse rate, but it al­so re­vealed that, out of 97 pa­tients in the study, 10 died.

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