ChiCTR2500106726 版本V1.0 版本创建时间2025/07/29 11:05:37 中国临床试验注册中心

审核状态:

Project audit state:

通过审核

Successful

注册号:

Registration number:

ChiCTR2500106726 

最近更新日期:

Date of Last Refreshed on:

2025-07-29 11:04:29 

注册时间:

Date of Registration:

2025-07-29 00:00:00 

注册号状态:

预注册

Registration Status:

Prospective registration

注册题目:

分子标志物指导下的HR阳性/HER2阴性晚期乳腺癌内分泌治疗进展后ADC药物序贯治疗的真实世界队列研究

Public title:

Real-world cohort study on sequential therapy with ADC drugs following progression of endocrine therapy guided by molecular biomarkers in HR-positive/HER2-negative advanced breast cancer

注册题目简写:

English Acronym:

研究课题的正式科学名称:

分子标志物指导下的HR阳性/HER2阴性晚期乳腺癌内分泌治疗进展后ADC药物序贯治疗的真实世界队列研究

Scientific title:

Real-world cohort study on sequential therapy with ADC drugs following progression of endocrine therapy guided by molecular biomarkers in HR-positive/HER2-negative advanced breast cancer

研究课题代号(代码):

Study subject ID:

在二级注册机构或其它机构的注册号:

The registration number of the Partner Registry or other register:

申请注册联系人:

张俊美 

研究负责人:

薛妍 

Applicant:

Junmei Zhang 

Study leader:

Yan Xue 

申请注册联系人电话:

Applicant telephone:

+86 180 9230 9080

研究负责人电话:

Study leader's telephone:

+86 139 9283 0596

申请注册联系人传真 :

Applicant Fax:

研究负责人传真:

Study leader's fax:

申请注册联系人电子邮件:

Applicant E-mail:

zjm19870908@163.com

研究负责人电子邮件:

Study leader's E-mail:

1410605462@qq.com

申请单位网址(自愿提供):

Applicant website(voluntary supply):

研究负责人网址(自愿提供):

Study leader's website(voluntary supply):

申请注册联系人通讯地址:

陕西省西安市高新区西太路777号

研究负责人通讯地址:

陕西省西安市高新区西太路777号

Applicant address:

No. 777 Xitai Road, High-Tech Zone, Xi'an City, Shaanxi Province, China

Study leader's address:

No. 777 Xitai Road, High-Tech Zone, Xi'an City, Shaanxi Province, China

申请注册联系人邮政编码:

Applicant postcode:

研究负责人邮政编码:

Study leader's postcode:

申请人所在单位:

西安国际医学中心医院

Applicant's institution:

Xi'an International Medical Center Hospital

研究负责人所在单位:

西安国际医学中心医院

Affiliation of the Leader:

Xi'an International Medical Center Hospital

是否获伦理委员会批准:

是/Yes

Approved by ethic committee:

Yes

伦理委员会批件文号:

Approved No. of ethic committee:

GJYX-KY-2025-032

伦理委员会批件附件:

Approved file of Ethical Committee:

查看附件View

批准本研究的伦理委员会名称:

西安国际医学中心医院伦理委员会

Name of the ethic committee:

Ethics Committee of Xi'an International Medical Center Hospital

伦理委员会批准日期:

Date of approved by ethic committee:

2025-07-10 00:00:00

伦理委员会联系人:

王芳

Contact Name of the ethic committee:

Fang Wang

伦理委员会联系地址:

陕西省西安市高新区西太路777号

Contact Address of the ethic committee:

No. 777 Xitai Road, High-Tech Zone, Xi'an City, Shaanxi Province, China

伦理委员会联系人电话:

Contact phone of the ethic committee:

+86 133 5923 9615

伦理委员会联系人邮箱:

Contact email of the ethic committee:

研究实施负责(组长)单位:

西安国际医学中心医院

Primary sponsor:

Xi'an International Medical Center Hospital

研究实施负责(组长)单位地址:

陕西省西安市高新区西太路777号

Primary sponsor's address:

No. 777 Xitai Road, High-Tech Zone, Xi'an City, Shaanxi Province, China

试验主办单位(项目批准或申办者):

Secondary sponsor:

国家:

中国

省(直辖市):

中国

市(区县):

Country:

China

Province:

Shaanxi Province

City:

单位(医院):

西安国际医学中心医院

具体地址:

陕西省西安市高新区西太路777号

Institution
hospital:

Xi'an International Medical Center Hospital

Address:

No. 777 Xitai Road, High-Tech Zone, Xi'an City, Shaanxi Province, China

经费或物资来源:

研究者自筹

Source(s) of funding:

Investigator-initiated funding

Target disease:

Breast cancer

Target disease code:

研究类型:

干预性研究

Study type:

Interventional study

研究所处阶段:

上市后药物 

Study phase:

4

研究设计:

非随机对照试验 

Study design:

Non randomized control 

研究目的:

细胞周期蛋白依赖性激酶4/6抑制剂(CDK4/6i)联合内分泌治疗是晚期HR+(激素受体阳性)/HER2-(人表皮生长因子受体2阴性)乳腺癌一线治疗的标准方案,但CDK4/6i治疗进展后的最佳治疗方案尚不明确。近年来,抗体偶联药物(ADC)如SG(戈沙妥珠单抗)和T-DXd(德曲妥珠单抗)在HR+/HER2-乳腺癌中显示出显著活性,为CDK4/6i进展后的治疗提供了新选择。然而,目前尚不清楚在CDK4/6i进展后,不同ADC的最佳应用顺序(如先用SG还是先用T-DXd),如何进一步优化治疗选择以延长生存期并提高生活质量成为临床中的研究热点。本研究旨在探索CDK4/6i进展后根据分子标志物表达状态指导不同ADC序贯应用(如SG→T-DXd vs.T-DXd→SG)的疗效、安全性和可能耐药机制,以指导临床实践并为精准治疗提供依据  

Objectives of Study:

The combination of cyclin-dependent kinase 4/6 inhibitors (CDK4/6i) and endocrine therapy is the standard first-line treatment for advanced HR+ (hormone receptor-positive)/HER2- (human epidermal growth factor receptor 2-negative) breast cancer. However, the optimal treatment strategy after progression on CDK4/6i remains unclear. In recent years, antibody-drug conjugates (ADCs) such as SG (sacituzumab govitecan) and T-DXd (trastuzumab deruxtecan) have demonstrated significant activity in HR+/HER2- breast cancer, providing new options for post-CDK4/6i treatment. Yet, it is still unknown what the optimal sequence of different ADCs should be after CDK4/6i progression (e.g., using SG first or T-DXd first). Further optimizing treatment choices to prolong survival and improve quality of life has become a key focus in clinical research. This study aims to explore the efficacy, safety, and potential resistance mechanisms of sequential ADC applications (e.g., SG→T-DXd vs. T-DXd→SG) guided by molecular biomarker expression status after CDK4/6i progression. The findings will help guide clinical practice and provide a basis for precision medicine.

药物成份或治疗方案详述:

 

Description for medicine or protocol of treatment in detail:

 

纳入标准:

(1) 成年患者≥18岁; (2) 经组织学或细胞学确诊的根据ASCO/CAP 指南确定的HR+/HER2-(HER2 IHC 0/IHC1+或IHC2+且FISH-)局部晚期不可手术切除或转移性乳腺癌患者; (3) 既往接受过CDK4/6i联合内分泌治疗,且经影像学证实疾病进展; (4) 有可评估病灶; (5) 接受过针对晚期疾病≤2线化疗; (6) 具有良好的器官功能及体能状态(ECOG评分≤2); (7) 签署知情同意书。

Inclusion criteria

(1) Adult patients >= 18 years old; (2) Histologically or cytologically confirmed HR+/HER2- (HER2 IHC 0/IHC 1+ or IHC 2+ with FISH-negative) locally advanced unresectable or metastatic breast cancer, as defined by ASCO/CAP guidelines; (3) Prior treatment with CDK4/6i combined with endocrine therapy, with radiologically confirmed disease progression; (4) Presence of evaluable lesions; (5) Received <= 2 lines of chemotherapy for advanced disease; (6) Adequate organ function and performance status (ECOG score <= 2); (7) Signed informed consent.

排除标准:

(1) 既往接受过拓扑异构酶1(TOP-1)抑制剂为基础的药物治疗; (2) 存在严重心、肝、肾功能不全或其他严重合并症; (3) 既往有中重度间质性肺炎且合并肺功能不全; (4) 有症状的脑转移; (5) 对试验所用ADC药物关键组分(如载药、抗体或连接子)有过敏史; (6) 患有活动性慢性炎症性肠病(溃疡性结肠炎、克罗恩病)的患者和有肠梗阻史或胃肠道(GI)穿孔的患者; (7) 未控制的心血管疾病(如NYHA III/IV级心衰、6个月内心肌梗死); (8) 活动性感染(如HIV、HBV/HCV活动期); (9) 妊娠或哺乳期妇女。

Exclusion criteria:

(1) Previous treatment with topoisomerase 1 (TOP-1) inhibitor-based therapy; (2) Severe cardiac, hepatic, or renal dysfunction or other serious comorbidities; (3) History of moderate to severe interstitial lung disease (ILD) with concurrent pulmonary insufficiency; (4) Symptomatic brain metastases; (5) History of allergy to key components of the investigational ADC drugs (e.g., payload, antibody, or linker); (6) Patients with active chronic inflammatory bowel disease (ulcerative colitis, Crohn’s disease) or a history of intestinal obstruction or gastrointestinal (GI) perforation; (7) Uncontrolled cardiovascular diseases (e.g., NYHA Class III/IV heart failure, myocardial infarction within 6 months); (8) Active infections (e.g., HIV, active HBV/HCV infection); (9) Pregnant or lactating women.

研究实施时间:

Study execute time:

From 2025-08-01 00:00:00 To 2027-12-31 00:00:00  

征募观察对象时间:

Recruiting time:

From 2025-08-01 00:00:00 To 2027-12-31 00:00:00  

干预措施:

Interventions:

组别:

队列1

样本量:

20

Group:

Cohort 1

Sample size:

干预措施:

根据HER2免疫组化不同表达水平决定进入队列1(HER2 IHC 2+,先给予T-DXd治疗,进展后使用SG治疗)

干预措施代码:

Intervention:

Patients will be assigned to Cohort 1 (HER2 IHC 2+) based on different HER2 immunohistochemical expression levels, where they will first receive T-DXd treatment, followed by SG treatment upon disease progression.

Intervention code:

组别:

队列2

样本量:

20

Group:

Cohort 1

Sample size:

干预措施:

根据HER2免疫组化不同表达水平决定进入队列2(队列2(HER2 IHC≤1+,先给予SG治疗,进展后使用T-DXd治疗)

干预措施代码:

Intervention:

Patients will be assigned to Cohort 2 (HER2 IHC <= 1+) based on different HER2 immunohistochemical expression levels, where they will first receive SG treatment, followed by T-DXd treatment upon disease progression.

Intervention code:

研究实施地点:

Countries of recruitment and research settings:

国家:

中国

省(直辖市):

陕西 

市(区县):

 

Country:

China 

Province:

Shaanxi 

City:

 

单位(医院):

陕西省人民医院 

单位级别:

三甲 

Institution
hospital:

Shaanxi Provincial People's Hospital

Level of the institution:

Tertiary A

国家:

中国

省(直辖市):

河南 

市(区县):

 

Country:

China 

Province:

Henan 

City:

 

单位(医院):

郑州大学第一医院 

单位级别:

三甲 

Institution
hospital:

The First Affiliated Hospital of Zhengzhou University

Level of the institution:

Tertiary A

国家:

中国

省(直辖市):

甘肃 

市(区县):

 

Country:

China 

Province:

Gansu 

City:

 

单位(医院):

兰州大学第一医院 

单位级别:

三甲 

Institution
hospital:

The First Hospital of Lanzhou University

Level of the institution:

Tertiary A

国家:

中国

省(直辖市):

青海 

市(区县):

 

Country:

China 

Province:

Qinghai 

City:

 

单位(医院):

青海大学附属医院 

单位级别:

三甲 

Institution
hospital:

Affiliated Hospital of Qinghai University

Level of the institution:

Tertiary A

国家:

中国

省(直辖市):

陕西 

市(区县):

 

Country:

China 

Province:

Shaanxi 

City:

 

单位(医院):

西安国际医学中心医院 

单位级别:

三甲 

Institution
hospital:

Xi'an International Medical Center Hospital

Level of the institution:

Tertiary A

测量指标:

Outcomes:

指标中文名:

无进展生存期1

指标类型:

主要指标

Outcome:

PFS1

Type:

Primary indicator

测量时间点:

测量方法:

Measure time point of outcome:

Measure method:

指标中文名:

无进展生存期2

指标类型:

次要指标

Outcome:

PFS2

Type:

Secondary indicator

测量时间点:

测量方法:

Measure time point of outcome:

Measure method:

指标中文名:

总无进展生存期

指标类型:

次要指标

Outcome:

PFS

Type:

Secondary indicator

测量时间点:

测量方法:

Measure time point of outcome:

Measure method:

指标中文名:

客观缓解率

指标类型:

次要指标

Outcome:

ORR

Type:

Secondary indicator

测量时间点:

测量方法:

Measure time point of outcome:

Measure method:

指标中文名:

总生存

指标类型:

次要指标

Outcome:

OS

Type:

Secondary indicator

测量时间点:

测量方法:

Measure time point of outcome:

Measure method:

采集人体标本:

Collecting sample(s)
from participants:

标本中文名:

肿瘤组织

组织:

Sample Name:

tumor tissue

Tissue:

人体标本去向

使用后保存  

说明

Fate of sample:

Preservation after use  

Note:

标本中文名:

血液

组织:

Sample Name:

blood

Tissue:

人体标本去向

使用后保存  

说明

Fate of sample:

Preservation after use  

Note:

征募研究对象情况:

Recruiting status:

尚未开始

Not yet recruiting

年龄范围:

Participant age:

最小 Min age 18 years
最大 Max age 85 years

性别:

女性

Gender:

Female

随机方法(请说明由何人用什么方法产生随机序列):

本研究分为两个队列,根据HER2免疫组化不同表达水平决定进入队列1(HER2 IHC 2+,先给予T-DXd治疗,进展后使用SG治疗)或队列2(HER2 IHC≤1+,先给予SG治疗,进展后使用T-DXd治疗)。

Randomization Procedure (please state who generates the random number sequence and by what method):

This study is divided into two cohorts. Patients will be assigned to either Cohort 1 (HER2 IHC 2+, receiving T-DXd treatment first followed by SG upon progression) or Cohort 2 (HER2 IHC <= 1+, receiving SG treatment first followed by T-DXd upon progression) based on their HER2 immunohistochemical expression levels.

是否公开试验完成后的统计结果:

Calculated Results after the Study Completed public access:

公开/Public

盲法:

Blinding:

试验完成后的统计结果(上传文件):

Calculated Results after
the Study Completed(upload file):

是否共享原始数据:

IPD sharing

No

共享原始数据的方式(说明:请填入公开原始数据日期和方式,如采用网络平台,需填该网络平台名称和网址):

由于本研究数据涉及患者隐私和合作机构的知识产权保护,原始数据暂不公开共享。汇总结果将通过学术论文形式发布。

The way of sharing IPD”(include metadata and protocol, If use web-based public database, please provide the url):

Since the research data involves patient privacy and intellectual property protection from collaborating institutions, the original data will not be publicly shared at this time. Summarized results will be published in academic papers.

数据采集和管理(说明:数据采集和管理由两部分组成,一为病例记录表(Case Record Form, CRF),二为电子采集和管理系统(Electronic Data Capture, EDC),如ResMan即为一种基于互联网的EDC:

数据采集: 本研究纳入的受试者,通过电子病例系统收集基线资料、实验室检测数据及随访结果。 数据管理: 电子数据存储于研究医院密码保护的服务器。患者身份信息替换为唯一研究ID。研究结束后数据保留10年,超期后安全销毁。

Data collection and Management (A standard data collection and management system include a CRF and an electronic data capture:

Data Collection: This study enrolls participants and collects baseline characteristics, laboratory test data, and follow-up results through an electronic medical record system. Data Management: Electronic data are stored on password-protected servers at the research hospital. Patient identifiers are replaced with unique study IDs. Data will be retained for 10 years after study completion and securely destroyed upon expiration.

数据与安全监察委员会:

Data and Safety Monitoring Committee:

暂未确定/Not yet

注册人:

Name of Registration:

 2025-07-29 11:04:29