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临床试验/NCT05512780
NCT05512780Unknown2 期

An Exploratory Clinical Study of CDK4/6 Inhibitor Dalpiciclib Combined With Letrozole in Neoadjuvant Treatment of Stage Ⅱ-Ⅲ HR-positive/HER2-negative Breast Cancer

Hebei Medical University Fourth Hospital0 个研究点目标入组 30 人开始时间: 2022年9月10日最近更新:
适应症
干预措施
相关药物

试验速览

阶段
2 期
发起方
入组人数
30
主要终点
ORR

研究概览

简要总结

This is a single-arm, open-label, exploratory clinical study

详细描述

This is a single-arm, open-label, exploratory clinical study initiated by the investigator to evaluate the objective response rate (ORR), efficacy, and safety of Dalpiciclib combined with letrozole in the neoadjuvant treatment of stage Ⅱ-Ⅲ HR+/HER2- breast cancer.

研究设计

研究类型
Interventional
分配方式
Na
干预模型
Single Group
主要目的
Treatment
盲法
None

入排标准

年龄范围
18 Years 至 75 Years(Adult, Older Adult)
性别
Female
接受健康志愿者

入选标准

  • Postmenopausal women aged ≥18 years, the definition of postmenopausal:
  • the patients with the history of bilateral oophorectomy, or age ≥ 60 years; or
  • Age <60, natural postmenopausal state (defined as the spontaneous cessation of regular menstruation for at least 12 consecutive months, without other pathological or physiological causes), E2 and FSH at the postmenopausal levels
  • All patients were estrogen receptor (ER) positive (>10%), HER2 -negative invasive breast cancer regardless of PR expression level. Immunohistochemistry (IHC) score of 0+, or 2+ confirmed by pathology laboratory and negative in situ hybridization (ISH) test (HER-2/CEP17 ratio <2.0);
  • Treatment-naive patients with stage Ⅱ-Ⅲ tumors whose tumor staging meets the criteria of the 8th edition of the American Joint Committee on Cancer (AJCC) Staging;

排除标准

  • Received any form of anti-tumor therapy (chemotherapy, radiotherapy, molecular targeted therapy, endocrine therapy, etc.)
  • Concurrently receiving any other anti-tumor therapy that those specified in the protocol;
  • Bilateral breast cancer, inflammatory breast cancer, or occult breast cancer;
  • Stage Ⅳ breast cancer;

研究组 & 干预措施

Dalpiciclib+ letrozole

Experimental

Dalpiciclib combined with Letrozole,28 days as one cycle.

  1. Dalpiciclib: 150 mg (p.o.) was given once daily for 3 weeks, followed by 1 week off in each 4-week cycle.
  2. Letrozole: 2.5mg, p.o., once a day, continuous administration.

干预措施: Dalpiciclib (Drug)

结局指标

主要结局

ORR

时间窗: 24 month

Objective response rate

次要结局

未报告次要终点

研究者

发起方
Hebei Medical University Fourth Hospital
申办方类型
Other
责任方
Sponsor

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