Months af­ter an­oth­er lethal set­back, Juno fi­nal­ly opts to kill lead CAR-T

Months af­ter one of the worst set­backs in the re­cent his­to­ry of drug de­vel­op­ment left a string of pa­tients dead, Juno has fi­nal­ly de­cid­ed that it will ter­mi­nate its lead drug pro­gram, hop­ing for a bet­ter out­come with an­oth­er CAR-T ther­a­py in its pipeline.

Juno CEO Hans Bish­op claimed $JUNO that its de­ci­sion to shelve JCAR015 was all due to the “un­ex­pect­ed” tox­i­c­i­ty that it dis­cov­ered af­ter the drug killed five pa­tients due to cere­bral ede­ma, or brain swelling. The sec­ond tal­ly of deaths, though, oc­curred in No­vem­ber, af­ter the com­pa­ny con­vinced the FDA to swift­ly lift a clin­i­cal hold on the drug by mak­ing the du­bi­ous claim that elim­i­nat­ing flu­dara­bine from the pre­con­di­tion­ing reg­i­men for pa­tients would re­solve the safe­ty is­sue that had al­ready killed sev­er­al late-stage can­cer pa­tients.

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Life Sciences Senior Associate

General Catalyst

San Francisco, CA, USA