The addition of gedatolisib to palbociclib and letrozole produced durable responses with comparable safety to that observed with palbociclib and letrozole alone in treatment-naïve patients with estrogen receptor-positive, HER2-negative advanced breast cancer.
Neoadjuvant zanidatamab monotherapy successfully reduced the incidence of residual disease and was well tolerated in treatment-naïve women with node negative, stage I HER2-positive breast cancer, potentially allowing patients to achieve pathologic complete responses in the absence of chemotherapy.
Subcutaneous delivery of fixed-dose adjuvant pertuzumab plus trastuzumab proved to have favorable tolerability, with a safety profile consistent with that seen with intravenous delivery of the regimen in patients with HER2-positive breast cancer.
The frontline combination of ribociclib and letrozole significantly prolonged overall survival over letrozole alone in a subset of patients with hormone receptor–positive, HER2-negative advanced breast cancer who had de novo metastatic disease or late recurrence from neoadjuvant therapy, according to data from an exploratory analysis of the phase 3 MONALEESA-2 trial.
Administration of trilaciclib followed by sacituzumab govitecan showed early signals of efficacy and may reduce the incidence of adverse effects in heavily pretreated patients with unresectable locally advanced or metastatic triple-negative breast cancer, according to preliminary results from a phase 2 study.