ChiCTR2600124994 版本V1.0 版本创建时间2026/05/20 10:23:22 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:

ChiCTR2600124994 

最近更新日期:

Date of Last Refreshed on:

2026-05-20 10:23:05 

注册时间:

Date of Registration:

2026-05-20 00:00:00 

注册号状态:

预注册

Registration Status:

Prospective registration

注册题目:

基于工程益生菌的口服递送蛋白技术治疗儿童苯丙酮尿症的安全性及有效性研究

Public title:

A Study on the Safety and Efficacy of Oral Protein Delivery Technology Based on Engineered Probiotics in the Treatment of Phenylketonuria in ChildrenA Study on the Safety and Efficacy of Oral Protein Delivery Technology Based on Engineered Probiotics in the Treatment of Phenylketonuria in Children

注册题目简写:

English Acronym:

研究课题的正式科学名称:

基于工程益生菌的口服递送蛋白技术治疗儿童苯丙酮尿症的安全性及有效性研究

Scientific title:

A Study on the Safety and Efficacy of Oral Protein Delivery Technology Based on Engineered Probiotics in the Treatment of Phenylketonuria in Children

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:

谢瑶 

研究负责人:

侯新琳 

Applicant:

Xie Yao 

Study leader:

Hou Xinlin 

申请注册联系人电话:

Applicant telephone:

+86 199 1053 3959

研究负责人电话:

Study leader's
telephone:

+86 135 5229 6675

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:

vivianmayi@126.com

研究负责人电子邮件:

Study leader's E-mail:

xinlin.hou@pkufh.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:

北京市西城区西什库大街8号

研究负责人通讯地址:

北京市西城区西什库大街8号

Applicant address:

No. 8 Xishiku Street, Xicheng District, Beijing, China

Study leader's address:

No. 8 Xishiku Street, Xicheng District, Beijing, 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:

北京大学第一医院

Applicant's institution:

Peking University First Hospital

研究负责人所在单位:

北京大学第一医院

Affiliation of the Leader:

Peking University First Hospital

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:

2026R0198-0003

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:

北京大学第一医院伦理委员会

Name of the ethic committee:

Ethics Committee of Peking University First Hospital

伦理委员会批准日期:

Date of approved by ethic committee:

2026-05-01 00:00:00

伦理委员会联系人:

胡艳

Contact Name of the ethic committee:

Hu Yan

伦理委员会联系地址:

北京市西城区西什库大街8号

Contact Address of the ethic committee:

No. 8 Xishiku Street, Xicheng District, Beijing, China

伦理委员会联系人电话:

Contact phone of the ethic committee:

+86 188 1053 3959

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:

北京大学第一医院

Primary sponsor:

Peking University First Hospital

研究实施负责(组长)单位地址:

北京市西城区西什库大街8号

Primary sponsor's address:

No. 8 Xishiku Street, Xicheng District, Beijing, 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):

北京市

市(区县):

Country:

China

Province:

Beijing

City:

单位(医院):

北京大学第一医院

具体地址:

北京市西城区西什库大街8号

Institution
hospital:

Peking University First Hospital

Address:

No. 8 Xishiku Street, Xicheng District, Beijing, China

国家:

中国

省(直辖市):

宁夏回族自治区

市(区县):

Country:

China

Province:

Ningxia Hui Autonomous Region

City:

单位(医院):

北京大学第一医院宁夏妇女儿童医院(宁夏回族自治区妇幼保健院)

具体地址:

银川市金凤区湖畔路127号

Institution
hospital:

Peking University First Hospital-NINGXIA Women & Children's Hospital

Address:

127 Hupan Road, Jinfeng District, Yinchuan

经费或物资来源:

北京航空航天大学 - 高校成果概念验证项目、北大医院 - 北京高创人才支持计划“登峰”项目、北大医院宁夏妇儿医院 - 宁夏出生缺陷与罕见病临床医学研究中心建设项目

Source(s) of funding:

Beihang University – University Achievement Concept Validation Project Peking University First Hospital – Beijing High-Talent Support Program "Dengfeng" Project Peking University First Hospital Ningxia Women and Children's Hospital – Ningxia Clinical Research Center for Birth Defects and Rare Diseases Construction Project

研究疾病:

苯丙酮酸尿症  

Target disease:

Phenylketonuria

研究疾病代码:

Target disease code:

研究类型:

干预性研究

Study type:

Interventional study

研究所处阶段:

探索性研究/预试验 

Study phase:

0

研究设计:

随机平行对照 

Study design:

Parallel 

研究目的:

本研究为多中心、随机、双盲、安慰剂对照的研究者发起临床试验,旨在系统评估口服工程益生菌 CPK 在 3–17 岁PKU儿童及青少年受试者中的安全性与耐受性,并探索其降低血液Phe水平的初步药效学特征。  

Objectives of Study:

This study is a multicenter, randomized, double-blind, placebo-controlled, investigator-initiated clinical trial designed to systematically evaluate the safety and tolerability of the engineered probiotic CPK in pediatric and adolescent subjects aged 3–17 years with PKU, and to explore its preliminary pharmacodynamic profile in reducing blood Phe levels.

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. 临床确诊PKU,新生儿筛查血Phe≥360 μmol/L,且筛选前1年内至少3次血Phe≥360 μmol/L,最近一次检测仍≥360 μmol/L; 2. 年龄在3周岁至17周岁之间,性别不限; 3. 筛选前至少60天维持稳定的低Phe饮食,未进行重大饮食调整; 4. 平均每周排便≥2次,无持续性腹泻,未使用泻药; 5. 体重在同年龄、同性别儿童青少年正常生长曲线第3百分位至第97百分位之间; 6. 筛选期血常规、肝肾功能、尿常规、肌酐清除率、CRP等实验室检查基本正常,或异常无临床意义; 7. 无免疫缺陷、自身免疫性疾病、活动性感染及严重慢性疾病; 8. 监护人充分理解研究内容,自愿签署知情同意书,能够全程配合随访、采样及给药要求。

Inclusion criteria

1. Clinically diagnosed PKU, with a blood Phe level of >=360 μmol/L in the newborn screening, and at least three instances of a blood Phe level of >=360 μmol/L within the year prior to screening, with the closest test result still being >=360 μmol/L; 2. Applicants must be between the ages of 3 and 17; there are no gender restrictions; 3. Maintain a stable low-Phe diet for at least 60 days prior to screening, with no significant dietary changes; 4. Average of at least two bowel movements per week, no persistent diarrhea, and no use of laxatives; 5. Body weight falls between the 3rd and 97th percentiles of the standard growth curve for children and adolescents of the same age and gender; 6. Laboratory tests conducted during the screening period—including complete blood count, liver and kidney function tests, urinalysis, creatinine clearance, and CRP—are essentially normal, or any abnormalities are clinically insignificant; 7. No immunodeficiency, autoimmune diseases, active infections, or severe chronic diseases; 8. The guardian fully understands the study protocol, voluntarily signs the informed consent form, and is able to cooperate fully with follow-up visits, sample collection, and medication administration throughout the study.

排除标准:

1. 既往或目前存在每日≥3次稀便、慢性腹泻或严重胃肠功能紊乱; 2. 存在影响肠道吸收的胃肠道疾病、活动性出血或手术史(筛选前90天内接受大型手术者); 3. 筛选前28天内使用过抗生素、益生菌制剂,或研究期间需使用者; 4. 筛选前30天内使用过胃肠道药物、影响胃肠功能的药物,或有发热、菌血症等活动性感染; 5. 筛选前60天内使用过沙丙蝶呤(KUVAN),筛选前30天内使用过聚乙二醇化苯丙氨酸氨裂解酶(PALYNZIQ),或对上述药物发生过严重免疫不良反应; 6. 乙肝表面抗原、丙肝抗体、梅毒抗体阳性者; 7. 有药物或酒精依赖史; 8. 既往接受过针对苯丙酮尿症的基因治疗; 9. 对大肠杆菌Nissle 1917(EcN)或研究药物成分过敏者; 10. 筛选前60天内参加过其他干预性临床试验并使用研究药物者; 11. 研究者判断存在任何不适宜参加本研究的情况。

Exclusion criteria:

1. A history of or current occurrence of loose stools >=3 times daily, chronic diarrhea, or severe gastrointestinal dysfunction; 2. Presence of gastrointestinal diseases that affect intestinal absorption, active bleeding, or a history of surgery (major surgery within 90 days prior to screening); 3. Participants who have used antibiotics or probiotic supplements within the past 28 days, or who will need to use them during the study; 4. Exclude participants who have used gastrointestinal medications or medications that affect gastrointestinal function within the past 30 days, or who have active infections such as fever or bacteremia; 5. Patients who have taken sapropterin (KUVAN) within the 60 days prior to screening, polyethylene glycol-conjugated phenylalanine ammonia-lyase (PALYNZIQ) within the 30 days prior to screening, or who have experienced a serious immune-mediated adverse reaction to either of these drugs; 6. Individuals who test positive for hepatitis B surface antigen, hepatitis C antibodies, or syphilis antibodies; 7. History of drug or alcohol dependence; 8. Has previously received gene therapy for phenylketonuria; 9. Individuals who are allergic to Escherichia coli Nissle 1917 (EcN) or any component of the study drug; 10. Exclude participants who have participated in other interventional clinical trials and received study medication within the past 60 days; 11. The researcher determines that there are any circumstances that make participation in this study unsuitable.

研究实施时间:

Study execute time:

From 2026-05-01 00:00:00 To 2030-12-31 00:00:00  

征募观察对象时间:

Recruiting time:

From 2026-06-01 00:00:00 To 2027-12-31 00:00:00

干预措施:

Interventions:

组别:

安慰剂组

样本量:

8

Group:

placebo group

Sample size:

干预措施:

接受与研究药物外观、剂型、给药方式完全一致的无活菌安慰剂口服干预。

干预措施代码:

Intervention:

Receive an oral intervention with an inactivated placebo that is identical in appearance, formulation, and route of administration to the study drug

Intervention code:

组别:

低剂量组

样本量:

8

Group:

low dose group

Sample size:

干预措施:

接受低剂量工程益生菌 CPK 口服干预

干预措施代码:

Intervention:

Receive oral administration of the low dose engineered probiotic CPK .

Intervention code:

组别:

高剂量组

样本量:

8

Group:

High dose group

Sample size:

干预措施:

接受高剂量工程益生菌 CPK 口服干预

干预措施代码:

Intervention:

Receive oral administration of the high dose engineered probiotic CPK .

Intervention code:

研究实施地点:

Countries of recruitment and research settings:

国家:

中国

省(直辖市):

北京 

市(区县):

 

Country:

China

Province:

Beijing

City:

单位(医院):

北京大学第一医院 

单位级别:

三甲 

Institution
hospital:

Peking University First Hospital

Level of the institution:

Tertiary A

国家:

中国

省(直辖市):

宁夏回族自治区 

市(区县):

 

Country:

China

Province:

Ningxia Hui Autonomous Region

City:

单位(医院):

北京大学第一医院宁夏妇女儿童医院(宁夏回族自治区妇幼保健院) 

单位级别:

三甲 

Institution
hospital:

Peking University First Hospital-NINGXIA Women & Children's Hospital

Level of the institution:

Tertiary A

测量指标:

Outcomes:

指标中文名:

心电图检查

指标类型:

次要指标

Outcome:

Electrocardiogram

Type:

Secondary indicator

测量时间点:

入组;给药结束后;随访第一周;随访第二周;随访第三周;随访第四周

测量方法:

临床医师测量

Measure time point of outcome:

Enrollment;After administration;(1,2,3,4) week of follow-up

Measure method:

Clinical measurements

指标中文名:

血苯丙氨酸水平

指标类型:

主要指标

Outcome:

Serum Phe levels

Type:

Primary indicator

测量时间点:

入组;用药后第 5、10、15、20(主要指标)、23 天;随访第一周;随访第二周;随访第三周;随访第四周

测量方法:

干血斑指尖采血,串联质谱法

Measure time point of outcome:

Enrollment; on days 5, 10, 15, 20 (primary outcome) and 23 after administration;(1,2,3,4) week

Measure method:

Fingerstick blood collection for dried blood spots, tandem mass spectrometry

指标中文名:

16S rRNA 测序

指标类型:

次要指标

Outcome:

16S rRNA sequencing

Type:

Secondary indicator

测量时间点:

入组,用药后第20天

测量方法:

采集粪便进行 16S rRNA 测序

Measure time point of outcome:

Enrollment; Days 20 after dosing;

Measure method:

Collect fecal samples for 16S rRNA sequencing

指标中文名:

体格检查及生命体征

指标类型:

次要指标

Outcome:

Physical Examination and Vital Signs

Type:

Secondary indicator

测量时间点:

入组;给药结束后;随访第一周;随访第二周;随访第三周;随访第四周

测量方法:

临床医师测量

Measure time point of outcome:

Enrollment;After administration;(1,2,3,4) week of follow-up

Measure method:

Clinical measurements

指标中文名:

血常规

指标类型:

次要指标

Outcome:

Complete Blood Count

Type:

Secondary indicator

测量时间点:

入组;给药结束后;随访第二周,随访第四周

测量方法:

留取2ml血液标本,中心实验室检验

Measure time point of outcome:

Enrollment;After administration;(2,4) week of follow-up

Measure method:

Collect a 2-milliliter blood sample for testing at the central laboratory.

指标中文名:

合并用药记录

指标类型:

次要指标

Outcome:

Merge Medication Records

Type:

Secondary indicator

测量时间点:

给药结束后;随访第一周;随访第二周;随访第三周;随访第四周

测量方法:

临床记录

Measure time point of outcome:

After administration;(1,2,3,4) week of follow-up

Measure method:

Clinical records

指标中文名:

促甲状腺激素

指标类型:

次要指标

Outcome:

Thyroid-Stimulating Hormone, TSH

Type:

Secondary indicator

测量时间点:

入组;给药结束后;随访第四周

测量方法:

留取2ml血液标本,中心实验室检验

Measure time point of outcome:

Enrollment;After administration;4 week of follow-up

Measure method:

Collect a 2-milliliter blood sample for testing at the central laboratory.

指标中文名:

不良事件监测

指标类型:

主要指标

Outcome:

Adverse Event Monitoring

Type:

Primary indicator

测量时间点:

给药结束后;随访第一周;随访第二周;随访第三周;随访第四周

测量方法:

不良事件按照 NCI CTCAE v5.0 标准分级,记录从基线至随访结束所有不良事件,判断与研究药物的相关性,评估安全性与耐受性。

Measure time point of outcome:

After administration;(1,2,3,4) week of follow-up

Measure method:

Adverse events were graded according to the NCI CTCAE v5.0 criteria. All adverse events occurring from baseline through the end of follow-up were recorded, their relationship to the study drug was assessed, and safety and tolerability were evaluated.

指标中文名:

CPK核酸拷贝数

指标类型:

次要指标

Outcome:

CPK nucleic acid copy number

Type:

Secondary indicator

测量时间点:

入组,用药后第20,23天;随访第三周;随访第四周

测量方法:

采集粪便样本,采用 qPCR 定量检测 CPK 核酸拷贝数

Measure time point of outcome:

Enrollment; Days 20 and 23 after dosing; Third week of follow-up; Fourth week of follow-up

Measure method:

Collect fecal samples and use qPCR to quantitatively determine the number of CPK nucleic acid copies

指标中文名:

临床生化

指标类型:

次要指标

Outcome:

Clinical Biochemistry

Type:

Secondary indicator

测量时间点:

入组;给药结束后

测量方法:

留取2ml血液标本,中心实验室检验

Measure time point of outcome:

Enrollment;After administration

Measure method:

Collect a 2-milliliter blood sample for testing at the central laboratory.

指标中文名:

尿常规

指标类型:

次要指标

Outcome:

Urinalysis

Type:

Secondary indicator

测量时间点:

入组;给药结束后;随访第二周,随访第四周

测量方法:

留取10ml清洁中段尿,中心实验室检验

Measure time point of outcome:

Enrollment;After administration;(2,4) week of follow-up

Measure method:

Collect 10 mL of a clean midstream urine sample for testing at the central laboratory.

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:

标本中文名:

粪便

组织:

Sample Name:

Feces

Tissue:

人体标本去向

使用后销毁  

说明

Fate of sample:

Destruction after use  

Note:

标本中文名:

尿液

组织:

Sample Name:

urine

Tissue:

人体标本去向

使用后销毁  

说明

Fate of sample:

Destruction after use  

Note:

标本中文名:

CPK核酸拷贝数

组织:

Sample Name:

CPK nucleic acid copy number

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 3 years
最大 Max age 17 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):

由独立统计人员使用IWRS生成随机序列,按1:1:1比例分配。

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

An independent statistician generated a random sequence using IWRS and assigned participants in a 1:1:1 ratio.

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:

双盲(对受试者和研究者均设盲)

Blinding:

Double blind (blinded to both subjects and researchers)

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

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):

不涉及

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

not relevant

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:

本研究建立覆盖全流程的标准化数据管理体系,严格遵循临床研究数据管理规范,确保研究数据真实、完整、准确、可追溯并符合保密要求。数据管理全过程制定标准操作规程(SOP),并严格执行。 在调查表及数据采集工具设计方面,根据研究方案统一制定病例报告表(CRF)、受试者筛选登记表、给药记录表、不良事件记录表、样本采集与检测记录表及随访记录表等电子与纸质数据采集工具。各类表格内容完整、逻辑清晰、填写规范,并经研究团队及统计人员审核后方可使用。 在数据收集环节,由经过培训的研究人员负责原始数据采集。所有数据均来源于受试者原始资料、临床检查报告、实验室检测结果及现场观察记录,确保数据记录及时、客观、准确,不进行推测或事后补记。样本检测数据由具备资质的实验室提供,检测报告直接归档保存,以保证数据来源的可追溯性。 在数据录入环节,采用电子数据采集系统进行双人录入与核对。纸质CRF由专人录入电子系统,录入人员不参与临床观察与样本检测,以减少主观偏倚。录入过程严格遵循预设编码规则与填写要求,关键数据实行双人复核,确保电子数据与原始记录一致。 在数据核查环节,建立人工核查与系统自动核查相结合的质量控制机制,对缺失值、异常值、逻辑错误及范围错误进行识别与提示。研究者对相关问题进行核查、澄清并记录修改原因,所有数据更正均保留修改痕迹,确保可追溯性。 在数据储存与备份方面,纸质资料由专人管理并存放于安全环境中;电子数据存储于加密服务器,实行分级权限管理,并定期进行自动及人工备份,以防止数据丢失、泄露或篡改。所有研究数据保存期限不少于研究结束后5年,符合相关法规与伦理要求。 在数据传递与交接环节,仅限授权的研究人员、监察人员及统计分析人员参与。数据传递采用加密传输或密封交接方式,并记录交接过程,以确保数据在传递过程中安全、完整。

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

This study establishes a standardized data management system covering the entire process, strictly adhering to Good Clinical Practice (GCP) guidelines to ensure that study data are authentic, complete, accurate, traceable, and compliant with confidentiality requirements. Standard Operating Procedures (SOPs) have been developed for the entire data management process and are strictly enforced.Regarding the design of questionnaires and data collection tools, electronic and paper-based data collection tools—including Case Report Forms (CRFs), subject screening and registration forms, dosing records, adverse event reports, sample collection and testing records, and follow-up records—were uniformly developed in accordance with the study protocol. All forms feature complete content, clear logic, and standardized completion requirements, and are only used after review by the research team and statisticians.During the data collection phase, trained researchers are responsible for collecting raw data. All data is derived from subject source documents, clinical examination reports, laboratory test results, and on-site observation records, ensuring that data is recorded in a timely, objective, and accurate manner, without speculation or retroactive entries. Sample testing data is provided by accredited laboratories, and test reports are directly archived to ensure the traceability of data sources.During the data entry phase, an electronic data capture system is used for dual-entry and cross-checking. Paper-based CRFs are entered into the electronic system by dedicated personnel who do not participate in clinical observations or sample testing, thereby minimizing subjective bias. The entry process strictly adheres to predefined coding rules and documentation requirements, with key data undergoing dual verification to ensure consistency between electronic data and original records.For data verification, a quality control mechanism combining manual and automated system checks is established to identify and flag missing values, outliers, logical errors, and range violations. Investigators verify and clarify relevant issues and document the reasons for any modifications; all data corrections retain a revision trail to ensure traceability.Regarding data storage and backup, paper documents are managed by designated personnel and stored in a secure environment; electronic data is stored on encrypted servers with tiered access controls, and regular automatic and manual backups are performed to prevent data loss, leakage, or tampering. All research data is retained for no less than five years after the conclusion of the study, in compliance with relevant regulations and ethical requirements.Regarding data transfer and handover, participation is restricted to authorized researchers, monitors, and statistical analysts. Data is transferred via encrypted transmission or sealed handover, and the handover process is documented to ensure the security and integrity of the data during transfer.

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:

 2026-05-20 10:23:05