Monte Rosa Therapeutics Inc. plans a signal-verifying phase II trial next year after making known the positive interim data from an ongoing phase I/II trial testing molecular glue degrader MRT-2359 in combination with androgen receptor (AR) inhibitor Xtandi (enzalutamide, Astellas Pharma Inc.). The investigation targeted heavily pretreated patients with metastatic castration-resistant prostate cancer bearing AR mutations.