GSK’s efforts to build a presence in the multiple myeloma market with Blenrep (belantamab mafodotin) have suffered a major setback, after it failed to improve on standard second-line therapy in a confirmatory Phase III study.
GSK’s Blenrep Hit By Trial Failure, Raising Questions About Its Future In The Myeloma Market
Phase III Study Misses Endpoint
The DREAMM-3 study was meant to be a confirmatory study for Blenrep, and its failure raises concerns over its use in earlier lines of therapy and the possibility that it could be removed from the market.

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