ChiCTR2600123177 版本V1.0 版本创建时间2026/04/22 11:52:08 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:

ChiCTR2600123177 

最近更新日期:

Date of Last Refreshed on:

2026-04-22 11:51:38 

注册时间:

Date of Registration:

2026-04-22 00:00:00 

注册号状态:

预注册

Registration Status:

Prospective registration

注册题目:

基于CRISPR/Cas12a的母体mcf-DNA超灵敏数字PCR检测预测新生儿早发性败血症

Public title:

Ultrasensitive Digital PCR Detection of Maternal MCF-DNA Based on CRISPR/Cas12a for Predicting Early-Onset Neonatal Sepsis

注册题目简写:

English Acronym:

研究课题的正式科学名称:

基于CRISPR/Cas12a的母体mcf-DNA超灵敏数字PCR检测预测新生儿早发性败血症

Scientific title:

Ultrasensitive Digital PCR Detection of Maternal MCF-DNA Based on CRISPR/Cas12a for Predicting Early-Onset Neonatal Sepsis

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:

康莉华 

研究负责人:

康莉华 

Applicant:

Lihua Kang 

Study leader:

Lihua Kang 

申请注册联系人电话:

Applicant telephone:

+86 18008312259

研究负责人电话:

Study leader's
telephone:

+86 23 60354459

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:

82864898@qq.com

研究负责人电子邮件:

Study leader's E-mail:

82864898@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:

重庆市渝北区龙山路120号

研究负责人通讯地址:

重庆市渝北区龙山路120号

Applicant address:

No. 120 Longshan Road, Yubei District, Chongqing

Study leader's address:

No 120 Longshan Road, Yubei District, Chongqing.

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:

重庆市妇幼保健院

Applicant's institution:

Chongqing Health Center for Women and Children

研究负责人所在单位:

重庆市妇幼保健院

Affiliation of the Leader:

Chongqing Health Center for Women and Children

是否获伦理委员会批准:

Approved by ethic committee:

Yes

伦理委员会批件文号:

Approved No. of ethic committee:

(2026)伦审(科)031号

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:

重庆市妇幼保健院医学伦理委员会

Name of the ethic committee:

Ethics Committee of Chongqing Health Center for Women and Children

伦理委员会批准日期:

Date of approved by ethic committee:

2026-03-12 00:00:00

伦理委员会联系人:

贺凌云

Contact Name of the ethic committee:

Lingyun He

伦理委员会联系地址:

重庆市渝北区龙山路120号

Contact Address of the ethic committee:

No 120 Longshan Road, Yubei District, Chongqing.

伦理委员会联系人电话:

Contact phone of the ethic committee:

+86 23 63316835

伦理委员会联系人邮箱:

Contact email of the ethic committee:

hly.1023@163.com

研究实施负责(组长)单位:

重庆市妇幼保健院

Primary sponsor:

Chongqing Health Center for Women and Children

研究实施负责(组长)单位地址:

重庆市渝北区龙山路120号

Primary sponsor's address:

No 120 Longshan Road, Yubei District, Chongqing.

试验主办单位(项目批准或申办者):

Secondary sponsor:

国家:

中国

省(直辖市):

重庆市

市(区县):

Country:

China

Province:

Chongqing

City:

单位(医院):

重庆市妇幼保健院

具体地址:

重庆市渝北区龙山路120号

Institution
hospital:

Chongqing Health Center for Women and Children

Address:

No 120 Longshan Road, Yubei District, Chongqing.

经费或物资来源:

自筹

Source(s) of funding:

Raise independently

研究疾病:

新生儿败血症  

Target disease:

Neonatal sepsis

研究疾病代码:

Target disease code:

研究类型:

观察性研究

Study type:

Observational study

研究所处阶段:

其它 

Study phase:

N/A

研究设计:

队列研究 

Study design:

Cohort study 

研究目的:

本项目基于课题组前期已建立的 CRISPR/Cas12a 超灵敏 PCR 检测平台,围绕母体血浆中微量微生物游离 DNA(mcf-DNA)的识别问题,探索该平台在新生儿早发性败血症(EOS)产前风险预测中的可行性。本研究重点不在于开发一个完整商业化体系,而是流行病调查发病率前 5 的高风险病原,完成以下小范围目标:在既有 Cas12a 检测平台上,补充开发针对代表性 EOS 病原的 mcf-DNA 识别模块,并在人工合成片段和部分阳性母体样本中验证其信号输出特性;联合使用数字 PCR 对母体血浆 mcf-DNA 进行前处理和分隔扩增,初步建立一套可用于复杂背景中的病原核酸检测流程;基于临床样本,探索检测信号与新生儿感染转归之间的相关性,为后续开展大样本风险模型构建提供数据依据。  

Objectives of Study:

This project is based on the CRISPR/Cas12a-based ultrasensitive PCR detection platform established previously by our research group. Focusing on the identification of trace microbial cell-free DNA (mcf-DNA) in maternal plasma, it explores the feasibility of this platform for the prenatal risk prediction of early-onset neonatal sepsis (EOS).Rather than developing a complete commercial system, this study prioritizes the epidemiological investigation of high-risk pathogens ranking among the top 5 in incidence, with the following limited objectives:Based on the existing Cas12a detection platform, supplement and develop mcf-DNA identification modules targeting representative EOS pathogens, and verify their signal output characteristics using synthetic fragments and selected positive maternal samples;Combine digital PCR for pre-processing and partitioned amplification of mcf-DNA in maternal plasma, and preliminarily establish a pathogen nucleic acid detection workflow applicable in complex backgrounds;Using clinical samples, explore the correlation between detection signals and neonatal infection outcomes, so as to provide data support for the subsequent construction of a large-sample risk prediction model.

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.在本院分娩的孕妇及其新生儿(母婴成对纳入); 2.围产期孕妇存在至少一项感染相关高危因素,包括但不限于: (1).分娩时母体发热(体温 > 38 °C); (2)胎膜早破时间 > 18 小时; (3)乙型链球菌(Group B Streptococcus,GBS)产前筛查阳性; (4)临床诊断或高度怀疑绒毛膜羊膜炎; 3.新生儿出生后 72 小时内接受系统感染评估; 对照组:1.在本院同期分娩的孕妇及其新生儿,与病例组母婴成对匹配;2.孕妇无围产期感染相关高危因素,无母体发热、无胎膜早破延长、GBS 筛查阴性、无绒毛膜羊膜炎等临床感染证据;3.新生儿出生后 72 小时内感染评估结果为阴性,无新生儿早发型感染相关临床表现及实验室异常; 4.与病例组按母亲年龄、分娩孕周进行 1:2 匹配。

Inclusion criteria

1.Pregnant women delivering in our hospital and their newborns (maternal-infant pairs to be enrolled consecutively); 2.Pregnant women with at least one infection-related perinatal risk factor, including but not limited to: (1).Maternal fever during labor (body temperature > 38 °C); (2).Premature rupture of membranes lasting > 18 hours; (3).Positive prenatal screening for Group B Streptococcus (GBS); (4).Clinical diagnosis or high suspicion of chorioamnionitis; 3.Newborns who undergo a complete infection evaluation within 72 hours after birth. Control Group: 1.Pregnant women who delivered at the same hospital during the same period and their newborns, pair-matched with the mother–infant pairs in the case group; 2.Pregnant women have no perinatal infection?related high?risk factors, no maternal fever, no prolonged premature rupture of membranes, negative GBS screening, and no clinical evidence of infection such as chorioamnionitis; 3.Newborns have a negative infection evaluation within 72 hours after birth, with no clinical manifestations or laboratory abnormalities related to early?onset neonatal infection; 4.Matched 1:2 with the case group by maternal age and gestational week at delivery.

排除标准:

1.孕期合并需长期或特殊治疗的严重慢性感染性疾病者(如 HIV 感染等); 2.分娩前 1 周内孕妇接受过系统性抗菌药物治疗者; 3.新生儿已明确诊断存在严重结构畸形或遗传/染色体异常者; 4.新生儿感染发生于出生后 > 72 小时(迟发型败血症)或临床表现可完全由非感染性疾病解释者; 5.围产期或新生儿临床资料不完整,无法完成 EOS 诊断评估或随访者;

Exclusion criteria:

1.Pregnant women with severe chronic infectious diseases requiring long-term or specialized treatment during pregnancy (e.g., HIV infection); 2.Pregnant women who received systemic antimicrobial therapy within 1 week before delivery; 3.Newborns with a confirmed diagnosis of severe structural malformations or genetic/chromosomal abnormalities; 4.Newborns in whom infection occurred more than 72 hours after birth (late-onset sepsis) or whose clinical manifestations could be fully explained by non-infectious diseases; 5. Those with incomplete perinatal or neonatal clinical data, preventing completion of EOS diagnostic evaluation or follow-up.

研究实施时间:

Study execute time:

From 2026-04-20 00:00:00 To 2027-01-01 00:00:00  

征募观察对象时间:

Recruiting time:

From 2026-04-23 00:00:00 To 2027-01-01 00:00:00

干预措施:

Interventions:

组别:

EOS组

样本量:

100

Group:

EOS group

Sample size:

干预措施:

干预措施代码:

Intervention:

None

Intervention code:

组别:

对照组

样本量:

200

Group:

Control group

Sample size:

干预措施:

干预措施代码:

Intervention:

None

Intervention code:

研究实施地点:

Countries of recruitment and research settings:

国家:

中国

省(直辖市):

重庆市 

市(区县):

 

Country:

China

Province:

Chongqing

City:

单位(医院):

重庆市妇幼保健院 

单位级别:

三级甲等 

Institution
hospital:

Chongqing Health Center for Women and Children

Level of the institution:

Tertiary A

测量指标:

Outcomes:

指标中文名:

mcf-DNA水平

指标类型:

主要指标

Outcome:

mcf-DNA level

Type:

Primary indicator

测量时间点:

产前

测量方法:

仪器检测

Measure time point of outcome:

Pre-pregnant

Measure method:

Laboratory instrumental testing

采集人体标本:

Collecting sample(s)
from participants:

标本中文名:

血清和血浆

组织:

Sample Name:

Serum or Plasma

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:

尚未开始

Not yet recruiting

年龄范围:

Participant age:

最小 Min age years
最大 Max age 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):

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

None

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:

Blinding:

None

是否共享原始数据:

IPD sharing

否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):

不共享

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

Not applicable (data not shared).

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:

病例报告表(CRF)+电子数据记录

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

Case Report Form (CRF) Electronic Data Recording

数据与安全监察委员会:

Data and Safety Monitoring Committee:

有/Yes

注册人:

Name of Registration:

 2026-04-22 11:51:38