Breast Cancer Clinical Trial
Official title:
Phase II Clinical Study of Darsilide Combined With Exemestane+Goserelin Neoadjuvant Endocrine Therapy in HR Positive and HER2 Negative Premenopausal Breast Cancer Patients
A multicenter, prospective, open, randomized cohort, non controlled phase II clinical study to evaluate the effectiveness and safety of Darxil combined with Exemestane+goserelin neoadjuvant endocrine therapy in HR positive and HER2 negative premenopausal breast cancer patients. The study object was to evaluate the HR positive and HER2 negative premenopausal breast cancer patients with SD after 2 cycles of neoadjuvant chemotherapy. The main endpoint was the objective response rate (ORR) of treatment
A multicenter, prospective, open, randomized cohort, non controlled phase II clinical study to evaluate the effectiveness and safety of Darxil combined with Exemestane+goserelin neoadjuvant endocrine therapy in HR positive and HER2 negative premenopausal breast cancer patients. The study object was to evaluate the HR positive and HER2 negative premenopausal breast cancer patients with SD after 2 cycles of neoadjuvant chemotherapy. The main endpoint was the objective response rate (ORR) of treatment。Objective: To evaluate the efficacy and safety of darsilide combined with endocrine therapy in SD patients with HR positive and HER2 negative premenopausal breast cancer after 2 cycles of neoadjuvant chemotherapy. It is planned to recruit 119 HR positive and HER2 negative premenopausal breast cancer patients in Group A to conduct the trial with Simon's two-stage design. The null hypothesis is a true response rate of 0.2, while the alternative hypothesis is a true response rate of 0.4. The experiment was conducted in two stages. In the first stage, 13 patients were enrolled. If there are ≤ 3 responses in 13 patients, the study will be stopped Early stopping. Otherwise, continue30 patients were enrolled, with a total sample size of 43. If there are ≥ 13 patients responding, the treatment is effective. Group B was randomly assigned in a 1:1 ratio, with the same number of participants as Group A, resulting in 43 final participants. Calculated based on the proportion of SD patients in 2 cycles of neoadjuvant chemotherapy accounting for 80%, and considering a 10% dropout rate, the final enrollment was made The sample size is 119 cases. The actual samples for molecular testing can be randomly selected based on clinical efficacy, with a statistically significant number. ;
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