ChiCTR2500113727 版本V1.0 版本创建时间2025/12/02 14:48:26 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:

ChiCTR2500113727 

最近更新日期:

Date of Last Refreshed on:

2025-12-02 14:48:13 

注册时间:

Date of Registration:

2025-12-02 00:00:00 

注册号状态:

补注册

Registration Status:

Retrospective registration

注册题目:

CTCs和ctDNA指导下的局部晚期和转移性胃癌优化免疫治疗策略研究

Public title:

Optimization of immunotherapy strategies for locally advanced and metastatic gastric cancer under the guidance of CTCs and ctDNA

注册题目简写:

English Acronym:

研究课题的正式科学名称:

CTCs和ctDNA指导下的局部晚期和转移性胃癌优化免疫治疗策略研究

Scientific title:

Optimization of immunotherapy strategies for locally advanced and metastatic gastric cancer under the guidance of CTCs and ctDNA

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:

顾康生 

研究负责人:

顾康生 

Applicant:

Gu Kangsheng 

Study leader:

Gu Kangsheng 

申请注册联系人电话:

Applicant telephone:

+86 13805692145

研究负责人电话:

Study leader's telephone:

+86 13805692145

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:

13805692145@163.com

研究负责人电子邮件:

Study leader's E-mail:

13805692145@163.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:

安徽省合肥市蜀山区绩溪路218号

研究负责人通讯地址:

安徽省合肥市蜀山区绩溪路218号

Applicant address:

No. 218, Jixi Road, Shushan District, Hefei City, Anhui Province

Study leader's address:

No. 218, Jixi Road, Shushan District, Hefei City, Anhui Province

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:

安徽医科大学第一附属医院

Applicant's institution:

The First Affiliated Hospital of Anhui Medical University

研究负责人所在单位:

安徽医科大学第一附属医院

Affiliation of the Leader:

The First Affiliated Hospital of Anhui Medical University

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:

安医一附院伦审一PJPJ2024-05-28

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:

安徽医科大学第一附属医院临床研究伦理委员会

Name of the ethic committee:

Clinical Research Ethics Committee of the First Affiliated Hospital of Anhui Medical University

伦理委员会批准日期:

Date of approved by ethic committee:

2024-03-29 00:00:00

伦理委员会联系人:

杜瀛瀛

Contact Name of the ethic committee:

Yingying Du

伦理委员会联系地址:

安徽省合肥市蜀山区绩溪路218号

Contact Address of the ethic committee:

No. 218, Jixi Road, Shushan District, Hefei City, Anhui Province

伦理委员会联系人电话:

Contact phone of the ethic committee:

+86 551 62923102

伦理委员会联系人邮箱:

Contact email of the ethic committee:

duyingying@126.com

研究实施负责(组长)单位:

安徽医科大学第一附属医院

Primary sponsor:

The First Affiliated Hospital of Anhui Medical University

研究实施负责(组长)单位地址:

安徽省合肥市蜀山区绩溪路218号

Primary sponsor's address:

No. 218, Jixi Road, Shushan District, Hefei City, Anhui Province

试验主办单位(项目批准或申办者):

Secondary sponsor:

国家:

中国

省(直辖市):

安徽省

市(区县):

Country:

China

Province:

Anhui

City:

单位(医院):

安徽医科大学第一附属医院

具体地址:

安徽省合肥市蜀山区绩溪路218号

Institution
hospital:

The First Affiliated Hospital of Anhui Medical University

Address:

No. 218, Jixi Road, Shushan District, Hefei City, Anhui Province

经费或物资来源:

安徽省卫生健康科研项目

Source(s) of funding:

Health research project of Anhui Province

Target disease:

Gastric cancer

Target disease code:

研究类型:

干预性研究

Study type:

Interventional study

研究所处阶段:

其它 

Study phase:

N/A

研究设计:

随机平行对照 

Study design:

Parallel 

研究目的:

1.采用 CTCs 和 ctDNA 评估 PD-1 抗体联合化疗对比单纯化疗应用于 PD-L1 CPS≥5的局部晚期(Ⅲ期)胃癌患者辅助治疗中的价值。 2.使用 CTCs 和 ctDNA 早期评估 PD-L1 CPS≥5 的转移性(Ⅳ期)胃癌患者接受 PD-1 抗体一线免疫治疗的疗效和预后价值。  

Objectives of Study:

1. Use CTCs and ctDNA to evaluate the value of PD-1 antibody combined with chemotherapy versus chemotherapy alone as adjuvant therapy in locally advanced (stage III) gastric cancer patients with PD-L1 CPS>=5. 2. Use CTCs and ctDNA for early assessment of the efficacy and prognostic value of first-line PD-1 antibody immunotherapy in metastatic (stage IV) gastric cancer patients with PD-L1 CPS>=5.

药物成份或治疗方案详述:

 

Description for medicine or protocol of treatment in detail:

 

纳入标准:

针对III期患者: 1.患者自愿加入本临床研究,理解研究程序且能够书面签署知情同意书; 2.年龄 18-80 岁; 3.按照 AJCC 第 8 版分期,经术后病理证实的 III 期胃癌,或 III-IVA 期食管胃交界部癌,病理类型是腺癌,免疫组化 PD-L1 CPS≥5; 4.患者接受手术的方式为 D2 式胃癌根治术; 5.ECOG PS 评分 0-1 分,心、肝、肾和骨髓等重要脏器功能能耐受内科抗肿瘤治疗,无化疗/免疫治疗禁忌。 针对IV期患者: 1.患者自愿加入本临床研究,理解研究程序且能够书面签署知情同意书; 2.年龄 18-80 岁; 3.经胃镜、转移灶穿刺或手术病理证实的胃/食管胃交界部腺癌,免疫组化 PD-L1CPS≥5; 4.按照 AJCC 第 8 版分期,确认为转移性癌,存在影像学可评估的远处转移病灶; 5.ECOG PS 评分 0-1 分,心、肝、肾和骨髓等重要脏器功能能耐受内科抗肿瘤治疗,无化疗/免疫治疗禁忌。。

Inclusion criteria

For Stage III patients: 1. Patients voluntarily join this clinical study, understand the study procedures, and are able to sign the informed consent form in writing; 2. Age 18-80 years; 3. Pathologically confirmed Stage III gastric cancer or Stage III-IVA gastroesophageal junction cancer after surgery, according to AJCC 8th edition staging, with adenocarcinoma histology and immunohistochemistry PD-L1 CPS>=5; 4. Patients underwent D2 radical gastrectomy for gastric cancer; 5. ECOG PS score of 0-1, with adequate heart, liver, kidney, and bone marrow function to tolerate antitumor therapy, with no contraindications to chemotherapy or immunotherapy. For Stage IV patients: 1. Patients voluntarily join this clinical study, understand the study procedures, and are able to sign the informed consent form in writing; 2. Age 18-80 years; 3. Gastric or gastroesophageal junction adenocarcinoma confirmed by endoscopy, biopsy of metastatic lesions, or surgery, with immunohistochemistry PD-L1 CPS>=5; 4. Confirmed as metastatic cancer according to AJCC 8th edition staging, with imaging-evaluable distant metastatic lesions; 5. ECOG PS score of 0-1, with adequate heart, liver, kidney, and bone marrow function to tolerate antitumor therapy, with no contraindications to chemotherapy or immunotherapy.

排除标准:

针对III期患者: 1.患者接受手术的方式为姑息性/未达 D2 式根治,或术后基线检查发现存在肿瘤负荷; 2.存在任何活动性、已知或可疑的自身免疫性疾病患者; 3.对免疫抑制剂存在过敏史或目前正在使用免疫抑制剂可能影响 PD-1 抗体疗效的患者; 4.妊娠期、哺乳期或计划在研究期间妊娠的女性患者; 5.病历资料不完整,无法进行评估和随访的患者; 6.研究者认为患者不宜参加本试验的其它情况。 针对IV期患者: 1.患者无可评估的肿瘤负荷、非转移性癌或病理类型非腺癌; 2.存在任何活动性、已知或可疑的自身免疫性疾病患者; 3.对免疫抑制剂存在过敏史或目前正在使用免疫抑制剂可能影响 PD-1 抗体疗效的患者; 4.妊娠期、哺乳期或计划在研究期间妊娠的女性患者; 5.病历资料不完整,无法进行评估和随访的患者; 6.既往接受过免疫/靶向/化疗等内科抗肿瘤治疗,允许针对转移灶的姑息性放疗,但放疗后的病灶不能作为靶病灶; 7.研究者认为患者不宜参加本试验的其它情况。

Exclusion criteria:

For Stage III patients: 1. Patients who underwent palliative surgery or did not achieve D2 radical resection, or patients whose postoperative baseline examination revealed tumor burden; 2. Patients with any active, known, or suspected autoimmune diseases; 3. Patients with a history of allergy to immunosuppressants or currently using immunosuppressants that may affect the efficacy of PD-1 antibodies; 4. Female patients who are pregnant, breastfeeding, or planning to become pregnant during the study; 5. Patients with incomplete medical records who cannot be assessed or followed up; 6. Other situations where the investigator believes the patient is not suitable to participate in this trial. For Stage IV patients: 1. Patients with no evaluable tumor burden, non-metastatic cancer, or non-adenocarcinoma pathological type; 2. Patients with any active, known, or suspected autoimmune diseases; 3. Patients with a history of allergy to immunosuppressants or currently using immunosuppressants that may affect the efficacy of PD-1 antibodies; 4. Female patients who are pregnant, breastfeeding, or planning to become pregnant during the study; 5. Patients with incomplete medical records who cannot be assessed or followed up; 6. Patients who have previously received immunotherapy, targeted therapy, chemotherapy, or other medical anti-tumor treatments; palliative radiotherapy for metastatic lesions is allowed, but post-radiotherapy lesions cannot be used as target lesions; 7. Other situations where the investigator believes the patient is not suitable to participate in this trial.

研究实施时间:

Study execute time:

From 2022-01-01 00:00:00 To 2026-12-27 00:00:00  

征募观察对象时间:

Recruiting time:

From 2024-04-16 00:00:00 To 2026-12-27 00:00:00  

干预措施:

Interventions:

组别:

局部晚期患者免疫联合化疗组(Ⅲ期)

样本量:

50

Group:

Locally advanced patients with immune combined chemotherapy group(Phase III)

Sample size:

干预措施:

第一阶段(PD-1 抗体联合化疗 6-8 疗程):可选择的 PD-1 抗体包括信迪利单抗、卡瑞利珠单抗、纳武利尤单抗、帕博利珠单抗和替雷利珠单抗等在国内已上市销售的药物。给药方案:a、PD-1 抗体+CapOx 方案(奥沙利铂 130mg/m2d1 ivgtt+卡培他滨 1000mg/m2 bid d1-14 po);b、PD-1 抗体+SOX 方案(奥沙利铂 130mg/m2d1 ivgtt+替吉奥 40-60mg/m2 bid d1-14 po);c、PD-1 抗体+多西他赛 60-100mg/m2 d1 ivgtt +替吉奥 40-60mg/m2 bid d1-14 po。每 21 天重复,共进行 6-8 个疗程。 第二阶段(PD-1 抗体联合维持化疗至术后 1 年):可选择的 PD-1 抗体包括信迪利单抗、卡瑞利珠单抗、纳武利尤单抗、帕博利珠单抗和替雷利珠单抗等在国内已上市销售的药物。给药方案:a、PD-1 抗体+卡培他滨方案(卡培他滨 1000mg/m2 bid d1-14 po);b、PD-1 抗体+替吉奥方案(替吉奥 40-60mg/m2 bid d1-14 po)。每 21 天重复,共进行至术后 1 年。

干预措施代码:

Intervention:

Phase 1 (PD-1 antibody combined with chemotherapy for 6-8 cycles): Selectable PD-1 antibodies include domestically marketed drugs such as Sintilimab, Camrelizumab, Nivolumab, Pembrolizumab, and Tislelizumab. Administration regimens: a. PD-1 antibody with CapOx regimen (Oxaliplatin 130 mg/m^2 on day 1 IV drip, Capecitabine 1000 mg/m^2 twice daily on days 1-14 orally); b. PD-1 antibody with SOX regimen (Oxaliplatin 130 mg/m^2 on day 1 IV drip, Tegafur 40-60 mg/m^2 twice daily on days 1-14 orally); c. PD-1 antibody with Docetaxel 60-100 mg/m2 on day 1 IV drip plus Tegafur 40-60 mg/m^2 twice daily on days 1-14 orally. Repeat every 21 days for a total of 6-8 cycles. Phase 2 (PD-1 antibody combined with maintenance chemotherapy until 1 year post-surgery): Selectable PD-1 antibodies include domestically marketed drugs such as Sintilimab, Camrelizumab, Nivolumab, Pembrolizumab, and Tislelizumab. Administration regimens: a. PD-1 antibody with Capecitabine regimen (Capecitabine 1000 mg/m^2 twice daily on days 1-14 orally); b. PD-1 antibody with Tegafur regimen (Tegafur 40-60 mg/m^2 twice daily on days 1-14 orally). Repeat every 21 days until 1 year post-surgery.

Intervention code:

组别:

局部晚期患者化疗组(Ⅲ期)

样本量:

50

Group:

Locally advanced patients chemotherapy group(Phase III)

Sample size:

干预措施:

与免疫联合化疗组相比仅去掉 PD-1 抗体的使用。

干预措施代码:

Intervention:

Compared with the immunotherapy combined with chemotherapy group, only the use of the PD-1 antibody was removed.

Intervention code:

组别:

转移性患者免疫联合化疗组(Ⅳ期)

样本量:

100

Group:

Patients with metastatic immunotherapy combined with chemotherapy group(Stage IV)

Sample size:

干预措施:

化疗方案的选择遵循 CSCO 指南和临床研究数据的推荐,无固定组合要求。若患者HER2 阳性,则在免疫联合化疗的基础上加用曲妥珠单抗靶向治疗。其中 PD-1 抗体选择国内已上市的药物,包括纳武利尤单抗、信迪利单抗、帕博利珠单抗、卡瑞利珠单抗或替雷利珠单抗。一线治疗至进展或者不能耐受的 AEs 停止,每 21 天重复。

干预措施代码:

Intervention:

The choice of chemotherapy regimen follows the recommendations of the CSCO guidelines and clinical research data, with no fixed combination required. If the patient is HER2 positive, trastuzumab targeted therapy is added on top of immunotherapy combined with chemotherapy. The PD-1 antibodies are selected from domestic approved drugs, including nivolumab, sintilimab, pembrolizumab, camrelizumab, or toripalimab. First-line treatment continues until disease progression or intolerable adverse events, repeated every 21 days.

Intervention code:

研究实施地点:

Countries of recruitment and research settings:

国家:

中国

省(直辖市):

安徽省 

市(区县):

 

Country:

China 

Province:

Anhui 

City:

 

单位(医院):

安徽医科大学第一附属医院 

单位级别:

三级甲等 

Institution
hospital:

The First Affiliated Hospital of Anhui Medical University

Level of the institution:

Tertiary A

测量指标:

Outcomes:

指标中文名:

CTCs和ctDNA

指标类型:

次要指标

Outcome:

CTCs and ctDNA

Type:

Secondary indicator

测量时间点:

针对III期患者,每3至6个月检测一次;针对IV期患者,每两疗程评估疗效时检测一次。

测量方法:

CTCs采用免疫磁珠负向筛选与靶向荧光定量PCR法进行检测CTC表面的叶酸受体,间接反映循环肿瘤细胞的量。ctDNA采用NGS法进行检测。

Measure time point of outcome:

testing every 3 to 6 months or every two sessions of efficacy evaluation.

Measure method:

Immunomagnetic bead negative screening and targeted fluorescent quantitative PCR were used to detect folate receptors on the surface of CTCs, which indirectly reflected the amount of circulating tumor cells. ctDNA was detected by NGS method.

指标中文名:

无进展生存时间

指标类型:

主要指标

Outcome:

Progression-free survival

Type:

Primary indicator

测量时间点:

每两个疗程

测量方法:

随访患者

Measure time point of outcome:

Every two sessions

Measure method:

Follow-up patient

指标中文名:

总生存时间

指标类型:

主要指标

Outcome:

Overall survival time

Type:

Primary indicator

测量时间点:

每两个疗程

测量方法:

随访患者

Measure time point of outcome:

Every two sessions

Measure method:

Follow-up patient

指标中文名:

客观缓解率

指标类型:

次要指标

Outcome:

Objective Response Rate

Type:

Secondary indicator

测量时间点:

每两个疗程

测量方法:

ORR是由完全缓解+部分缓解计算。

Measure time point of outcome:

Every two sessions

Measure method:

ORR is calculated by complete response + partial response.

指标中文名:

疾病控制率

指标类型:

次要指标

Outcome:

Disease control rate

Type:

Secondary indicator

测量时间点:

每两个疗程

测量方法:

DCR是由完全缓解+部分缓解+疾病稳定计算。

Measure time point of outcome:

Every two sessions

Measure method:

DCR is calculated as complete response + partial response + disease stabilization.

指标中文名:

2年DFS率

指标类型:

主要指标

Outcome:

2-year DFS rate

Type:

Primary indicator

测量时间点:

2年

测量方法:

随访患者

Measure time point of outcome:

2 year

Measure method:

Follow-up patient

指标中文名:

无复发生存时间

指标类型:

次要指标

Outcome:

No recurrence survival time

Type:

Secondary indicator

测量时间点:

每3至6个月

测量方法:

所有患者在术后进行辅助治疗前进行肿瘤影像学评估。以后每3个月(或患者有相应肿瘤复发症状时)进行一次影像学评估至术后2年。术后2年至5年,每6个月进行一次影像学评估。直至获得影像学上疾病复发的证据,或死亡、失访、撤回知情同意或终止研究。

Measure time point of outcome:

Every 3 to 6 months

Measure method:

All patients underwent imaging evaluation before adjuvant therapy. Imaging evaluations were then performed every 3 months (or when the patient had symptoms of corresponding tumor recurrence) until 2 years after surgery. Imaging evaluations were performed every 6 months for 2 to 5 years after surgery. Until radiographic evidence of disease recurrence is obtained, or death, loss of follow-up, withdrawal of informed consent, or termination of the study.

指标中文名:

1年DFS率

指标类型:

主要指标

Outcome:

1 year DFS rate

Type:

Primary indicator

测量时间点:

1年

测量方法:

随访患者

Measure time point of outcome:

1 year

Measure method:

Follow-up patient

采集人体标本:

Collecting sample(s)
from participants:

标本中文名:

血液

组织:

Sample Name:

Blood

Tissue:

人体标本去向

使用后销毁  

说明

Fate of sample:

Destruction after use  

Note:

征募研究对象情况:

Recruiting status:

正在进行

Recruiting

年龄范围:

Participant age:

最小 Min age 18 years
最大 Max age 80 years

性别:

男女均可

Gender:

Both

随机方法(请说明由何人用什么方法产生随机序列):

研究团队中的统计专人,非直接主管医师使用 R 软件随机。

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

The statistician in the research team, not the direct supervising physician, uses R software for randomization.

是否公开试验完成后的统计结果:

Calculated Results after the Study Completed public access:

不公开/Private

盲法:

双盲

Blinding:

Double blind

是否共享原始数据:

IPD sharing

Yes

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):

论文发表后一年内,备案系统https://www.medicalresearch.org.cn/。

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

Within one year after the paper is published, register it in the system at https://www.medicalresearch.org.cn/.

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:

CRF和EDC由项目组专人负责记录和管理,对外保密。

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

The CRF and EDC shall be recorded and managed by special personnel of the project team and shall be kept confidential.

数据与安全监察委员会:

Data and Safety Monitoring Committee:

无/No

注册人:

Name of Registration:

 2025-12-02 14:48:13