Astrazeneca plc’s good news with its oral selective estrogen receptor degrader (SERD) and estrogen receptor antagonist, camizestrant, when used as part of a combo in breast cancer raised optimism for the approach, which has caught on in various biopharma quarters.
Around 75% of breast cancer cases in postmenopausal patients show estrogen receptor (ER) expression. There is a need for new long-acting formulations for selective estrogen receptor degradation inducers (SERDs) because the efficacy of current options, such as the approved SERD fulvestrant, is limited due to poor solubility and stability.
Substituted fluorinated N-propyl-pyrrolidine and n-propyl-azetidine compounds acting as estrogen receptor (ER) antagonists and selective estrogen receptor degradation (SERD) inducers have been reported in a Sanofi SA patent.
