A Study on the Characteristics of Lower Respiratory Tract Microbiota in Non-Lung Disease Populations
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注册号: Registration number: |
ChiCTR2600126830 |
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最近更新日期: Date of Last Refreshed on: |
2026-06-16 23:29:52 |
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注册时间: Date of Registration: |
2026-06-16 00:00:00 |
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注册号状态: |
预注册 |
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Registration Status: |
Prospective registration |
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注册题目: |
非肺部疾病人群的下呼吸道微生物组特征研究 |
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Public title: |
A Study on the Characteristics of Lower Respiratory Tract Microbiota in Non-Lung Disease Populations |
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注册题目简写: |
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English Acronym: |
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研究课题的正式科学名称: |
非肺部疾病人群的下呼吸道微生物组特征研究 |
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Scientific title: |
A Study on the Characteristics of Lower Respiratory Tract Microbiota in Non-Lung Disease Populations |
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研究课题代号(代码): Study subject ID: |
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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: |
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申请注册联系人: |
刘嘉琳 |
研究负责人: |
刘嘉琳 |
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Applicant: |
Jialin Liu |
Study leader: |
Jialin Liu |
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申请注册联系人电话: Applicant telephone: |
+86 21 64370045 |
研究负责人电话: Study leader's telephone: |
+86 21 63470045 |
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申请注册联系人传真 : Applicant Fax: |
研究负责人传真: Study leader's fax: |
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申请注册联系人电子邮件: Applicant E-mail: |
ljl11243@rjh.com.cn |
研究负责人电子邮件: Study leader's E-mail: |
ljl11243@rjh.com.cn |
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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): |
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申请注册联系人通讯地址: |
上海市黄浦区瑞金二路197号6号楼4楼 |
研究负责人通讯地址: |
上海市瑞金二路197号 |
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Applicant address: |
Floor 4, Building No. 6, No. 197 Ruijin Er Road, Huangpu District, Shanghai, China |
Study leader's address: |
Ruijin Hospital, 197 Rui Jin 2nd Road, Shanghai, China |
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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: |
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申请人所在单位: |
上海交通大学医学院附属瑞金医院老年医学科 |
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Applicant's institution: |
Department of Geriatrics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine |
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研究负责人所在单位: |
上海交通大学医学院附属瑞金医院 |
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Affiliation of the Leader: |
Ruijin Hospital, Shanghai Jiao Tong University School of Medicine |
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是否获伦理委员会批准: |
是/Yes |
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Approved by ethic committee: |
Yes |
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伦理委员会批件文号: Approved No. of ethic committee: |
(2026)临伦审第(409)号 |
伦理委员会批件附件: Approved file of Ethical Committee: |
查看附件View |
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批准本研究的伦理委员会名称: |
上海交通大学医学院附属瑞金医院涉及人体的临床与科研项目伦理委员会 |
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Name of the ethic committee: |
Ruijin Hospital Ethics Committee, Shanghai JiaoTong University School of Medicine |
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伦理委员会批准日期: Date of approved by ethic committee: |
2026-06-04 00:00:00 |
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伦理委员会联系人: |
赵彦琳 |
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Contact Name of the ethic committee: |
Zhao Yanlin |
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伦理委员会联系地址: |
上海市瑞金二路197号 |
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Contact Address of the ethic committee: |
Ruijin Hospital, 197 Rui Jin 2nd Road, Shanghai, China |
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伦理委员会联系人电话: Contact phone of the ethic committee: |
+86 21 80585870 |
伦理委员会联系人邮箱: Contact email of the ethic committee: |
zyl02d86@rjh.com.cn |
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研究实施负责(组长)单位: |
上海交通大学医学院附属瑞金医院 |
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Primary sponsor: |
Ruijin Hospital, Shanghai Jiao Tong University School of Medicine |
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研究实施负责(组长)单位地址: |
上海市瑞金二路197号 |
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Primary sponsor's address: |
Ruijin Hospital, 197 Rui Jin 2nd Road, Shanghai, China |
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试验主办单位(项目批准或申办者): Secondary sponsor: |
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经费或物资来源: |
国家自然科学基金 |
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Source(s) of funding: |
National Natural Science Foundation of China |
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Target disease: |
Other Scientific Questions in Respiratory Diseases |
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Target disease code: |
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研究类型: |
观察性研究 |
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Study type: |
Observational study |
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研究所处阶段: |
其它 | ||||||||||||||||||||||
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Study phase: |
N/A |
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研究设计: |
队列研究 |
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Study design: |
Cohort study |
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研究目的: |
主要研究目的:描绘无肺部疾病人群下呼吸道微生物组的物种组成、丰度分布及功能特征,建立非肺部疾病状态下的下呼吸道微生态参考图谱。 次要研究目的:为后续各类呼吸系统疾病的微生态失调机制研究、早期预警标志物筛选及靶向干预策略研发提供数据支撑。 |
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Objectives of Study: |
Primary Objective: To characterize the species composition, abundance distribution, and functional attributes of the lower respiratory tract microbiota in individuals without pulmonary diseases, and to establish a reference atlas of the lower respiratory tract microbiome under non-lung disease conditions.Secondary Objective: To provide data support for subsequent investigations into the mechanisms of microbiota dysbiosis in various respiratory diseases, the screening of early warning biomarkers, and the development of targeted intervention strategies. |
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药物成份或治疗方案详述: |
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Description for medicine or protocol of treatment in detail: |
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纳入标准: |
1. 受试者或其法定代理人签署书面且带日期的知情同意书,充分理解并同意参加本研究。 2. 年龄>=18周岁,性别不限。 3. 因自身诊疗需求需在全麻下(必须留置气管导管)接受有创机械通气,且所实施的临床诊疗操作依据指南通常无需预防性使用抗菌药物。 4. 既往及入组时无任何急、慢性肺部疾病(包括但不限于慢性阻塞性肺疾病、支气管哮喘、肺癌、间质性肺病、支气管扩张等),且入组前30天内无任何肺部感染病史。需同时满足以下临床特征: (1) 肺部影像学(如X线或CT)无肺部浸润阴影、实变、空洞及异常结节等活动性或陈旧性病灶表现; (2) 无不明原因的发热(体温>38°C),且外周血WBC计数正常; (3) 近期无新发咳嗽、咳痰、呼吸困难或呼吸频率增快等呼吸道异常症状;肺部听诊未闻及干/湿性啰音或异常呼吸音;入组前血氧饱和度/氧合指标正常; (4) 若常规诊疗包含呼吸道病原体检测,结果须为阴性;任一结果阳性需经研究者综合评估排除活动性感染后方可入组。 5. 可于接受有创机械通气后24小时内完成下呼吸道分泌物标本的采集。 6. 入组前30天内未接受过可能显著改变微生态基线的全身或局部药物治疗(详见排除标准)。 7. 无免疫缺陷等排除标准所述疾病。 |
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Inclusion criteria |
1. The subject or their legally authorized representative provides signed and dated written informed consent, fully understands the study content, and voluntarily agrees to participate. 2. Age >= 18 years, regardless of gender. 3. Requires invasive mechanical ventilation (with mandatory indwelling endotracheal tube) under general anesthesia due to their own diagnostic or therapeutic needs, and the clinical procedures to be performed do not routinely require prophylactic antibiotic use according to clinical practice guidelines. 4. No history of acute or chronic pulmonary diseases (including but not limited to chronic obstructive pulmonary disease, bronchial asthma, lung cancer, interstitial lung disease, bronchiectasis, etc.) prior to or at enrollment, and no history of pulmonary infection within 30 days prior to enrollment. The following clinical features must be simultaneously met: (1) No evidence of pulmonary infiltrates, consolidation, cavities, or abnormal nodules (active or residual lesions) on pulmonary imaging (e.g., X-ray or CT); (2) No unexplained fever (body temperature > 38°C), with normal peripheral blood white blood cell (WBC) count; (3) No recent new-onset or worsening respiratory symptoms such as cough, sputum production, dyspnea, or tachypnea; no dry/moist rales or abnormal breath sounds on pulmonary auscultation; normal blood oxygen saturation/oxygenation indices prior to enrollment; (4) If respiratory pathogen testing is performed as part of routine diagnostic workup, results must be negative; if any pathogen test result is positive, the subject may only be enrolled after comprehensive evaluation by the investigator to rule out active infection. 5. Lower respiratory tract secretions can be collected within 24 hours following the initiation of invasive mechanical ventilation. 6. No receipt of systemic or topical medications that could significantly alter the baseline microbiota within 30 days prior to enrollment (see exclusion criteria for details). 7. Absence of diseases or conditions specified in the exclusion criteria, including immunodeficiencies. |
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排除标准: |
1.确诊或疑似合并任何急、慢性肺部疾病(如肺部感染、慢性阻塞性肺疾病、支气管哮喘、间质性肺病、肺部原发/继发肿瘤、支气管扩张、活动性肺结核等)。 |
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Exclusion criteria: |
1.Diagnosis or suspected presence of any acute or chronic pulmonary disease (e.g., pulmonary infection, chronic obstructive pulmonary disease, bronchial asthma, interstitial lung disease, primary/secondary lung tumors, bronchiectasis, active pulmonary tuberculosis, etc.). |
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研究实施时间: Study execute time: |
从 From 2026-06-08 00:00:00至 To 2029-05-30 00:00:00 |
征募观察对象时间: Recruiting time: |
从From 2026-06-16 00:00:00 至 To 2029-05-30 00:00:00 |
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干预措施: Interventions: |
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研究实施地点: Countries of recruitment and research settings: |
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测量指标: Outcomes: |
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采集人体标本:
Collecting sample(s)
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征募研究对象情况: Recruiting status: |
尚未开始 Not yet recruiting |
年龄范围: Participant age: |
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性别: |
男女均可 |
Gender: |
Both |
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随机方法(请说明由何人用什么方法产生随机序列): |
无 |
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Randomization Procedure (please state who generates the random number sequence and by what method): |
None |
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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 |
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盲法: |
无 |
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Blinding: |
None |
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是否共享原始数据: IPD sharing |
No |
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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 |
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The way of sharing IPD”(include metadata and protocol, If use web-based public database, please provide the url): |
Not applicable |
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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) |
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Data collection and Management (A standard data collection and management system include a CRF and an electronic data capture: |
Data collection and Management (A standard data collection and management system include a CRF and an electronic data capture |
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数据与安全监察委员会: Data and Safety Monitoring Committee: |
有/Yes |