Darsilide Combined With AI, Trastuzumab and Patuzumab in the Neoadjuvant Treatment of HR+/HER2+ Breast Cancer

"All participants received 150mg of darcilib once a day. Take it continuously for 21 days, then stop taking it for 7 days, with a treatment cycle of 28 days.~Letrozole 2.5mg once daily (premenopausal patients treated with OFS); Trastuzumab (8mg/kg first dose, 6mg/kg sequential) and Patuzumab (840mg first dose, 420mg/kg sequential) were administered intravenously every 3 weeks, or fixed-dose combination of pertuzumab and trastuzumab for subcutaneous injection (1200 mg pertuzumab plus 600 mg trastuzumab loading dose in 15 mL, followed by 600 mg pertuzumab plus 600 mg trastuzumab maintenance doses in 10 mL), both administered every 3 weeks."