MorphoSys AG reported positive results on 20 November from a Phase 3 study of the BET inhibitor pelabresib as a treatment for myelofibrosis – a key development for the company’s evolving portfolio. Pelabresib is a small molecule drug designed to promote anti-tumour activity by inhibiting the function of bromodomain and extra-terminal domain (BET) proteins to decrease the expression of abnormally expressed genes in cancer. If approved, it would be the company’s second wholly-owned product on the market.