ChiCTR2600117041 版本V1.0 版本创建时间2026/01/19 14:39:25 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:

ChiCTR2600117041 

最近更新日期:

Date of Last Refreshed on:

2026-01-19 14:39:08 

注册时间:

Date of Registration:

2026-01-19 00:00:00 

注册号状态:

预注册

Registration Status:

Prospective registration

注册题目:

叶酸在精神分裂症低叶酸患者认知功能障碍中的作用及机制研究

Public title:

Study on the Role and Mechanism of Folic Acid in Cognitive Dysfunction of Patients with Schizophrenia with Low Folic Acid Levels

注册题目简写:

English Acronym:

研究课题的正式科学名称:

叶酸在精神分裂症低叶酸患者认知功能障碍中的作用及机制研究

Scientific title:

Study on the Role and Mechanism of Folic Acid in Cognitive Dysfunction of Patients with Schizophrenia with Low Folic Acid Levels

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:

郭丽阳 

研究负责人:

郭丽阳 

Applicant:

Guo Liyang 

Study leader:

Guo Liyang 

申请注册联系人电话:

Applicant telephone:

+86 153 9906 9762

研究负责人电话:

Study leader's telephone:

+86 153 9906 9762

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:

guo109@126.com

研究负责人电子邮件:

Study leader's E-mail:

guo109@126.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:

西安市雁塔区健康西路277号

研究负责人通讯地址:

西安市雁塔区健康西路277号

Applicant address:

No. 277, Health West Road, Yanta District, Xi'an City

Study leader's address:

No. 277, Health West Road, Yanta District, Xi'an City

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:

西安交通大学第一附属医院

Applicant's institution:

The First Affiliated Hospital of Xi'an Jiaotong University

研究负责人所在单位:

西安交通大学第一附属医院

Affiliation of the Leader:

The First Affiliated Hospital of Xi'an Jiaotong 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:

XJTUIAF-2025LSYY-910

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:

西安交通大学第一附属医院医学伦理委员会

Name of the ethic committee:

The Medical Ethics Committee of the First Affiliated Hospital of Xi'an Jiaotong University

伦理委员会批准日期:

Date of approved by ethic committee:

2025-11-24 00:00:00

伦理委员会联系人:

易秋月

Contact Name of the ethic committee:

Yi Qiuyue

伦理委员会联系地址:

西安市雁塔区健康西路277号

Contact Address of the ethic committee:

The First Affiliated Hospital of Xi'an Jiaotong University

伦理委员会联系人电话:

Contact phone of the ethic committee:

+86 29 8532 3473

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:

西安交通大学第一附属医院

Primary sponsor:

The First Affiliated Hospital of Xi'an Jiaotong University

研究实施负责(组长)单位地址:

西安市雁塔区健康西路277号

Primary sponsor's address:

No. 277, Health West Road, Yanta District, Xi'an City

试验主办单位(项目批准或申办者):

Secondary sponsor:

国家:

中国

省(直辖市):

陕西省

市(区县):

Country:

China

Province:

Shaanxi

City:

单位(医院):

西安交通大学第一附属医院

具体地址:

西安市雁塔区健康西路277号

Institution
hospital:

The First Affiliated Hospital of Xi'an Jiaotong University

Address:

No. 277, Health West Road, Yanta District, Xi'an City

经费或物资来源:

自筹经费

Source(s) of funding:

sulf-funded

Target disease:

schizophrenia

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:

叶酸是一种维生素,可以从供体分子接受一碳单元,参与体内多种代谢途径,如甲基生物合成和核苷酸,维生素和一些氨基酸的合成。DNA 复制,修复和甲基 化的效率受叶酸可用性的影响。快速增殖的细胞如白细胞,红细胞和肠细胞也需要大量的叶酸。叶酸和维生素 B12 的变化,可以改变的一碳代谢途径,这是精神分裂症可能的病因机制。目前很多研究发现精神分裂症的发生和低叶酸水平有关,低叶酸水平是精神分裂症的危险因素。叶酸通过调节同型半胱氨酸(Hcy)代谢、炎症、氧化应激等,对认知功能产生多维度影响。叶酸是否可以改善精神分裂症患者的认知功 能目前的研究还不多,还没有一致的结论。基于上述背景,本研究采用单中心,随机对照研究,旨在探索低叶酸水平的精神分裂症患者补充叶酸,精神分裂症患者认知功能是否能够改善及背后的可能机制。观察其疗效和安全性,为优化精神分裂症的治疗提供新的思路。  

Objectives of Study:

Folic acid is a vitamin that can accept one-carbon units from donor molecules and participate in various metabolic pathways in the body, such as methyl biosynthesis and the synthesis of nucleotides, vitamins, and some amino acids. The efficiency of DNA replication, repair, and methylation is influenced by the availability of folic acid. Rapidly proliferating cells such as leukocytes, erythrocytes, and intestinal cells also require a large amount of folic acid. Changes in folic acid and vitamin B12 can alter one-carbon metabolic pathways, which may be a potential etiological mechanism for schizophrenia. Many current studies have found that the occurrence of schizophrenia is related to low levels of folic acid, and low folic acid levels are a risk factor for schizophrenia. Folic acid has a multidimensional impact on cognitive function by regulating homocysteine (Hcy) metabolism, inflammation, oxidative stress, and so on. There is currently limited research on whether folic acid can improve cognitive function in patients with schizophrenia, and there is no consistent conclusion yet. Based on the above background, this study adopts a single-center, randomized controlled design aimed at exploring whether supplementation of folic acid in patients with schizophrenia with low folic acid levels can improve cognitive function and the possible underlying mechanisms. It will observe its efficacy and safety, providing new ideas for optimizing the treatment of schizophrenia.

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.符合ICD-10 诊断标准的首发或复发近3月没使用抗精神病药治疗的精神分裂症住院患者; 2. 年龄18-60 岁,男女不限; 3. 叶酸≦4.2ng/ml,维生素B12 水平正常(>179pmol/ml) 4. 文化程度初中及以上水平,可以理解配合C-BCT检查; 5. 最近3 月没有连续服用抗生素超过3 天; 6. 17.5≦体质量指数(Body Mass Index,BMI)≦30; 7. 家庭支持度好,能够理解和遵守研究要求; 8. 常规饮食,无特殊饮食习惯。

Inclusion criteria

1. Inpatients with schizophrenia who have met the ICD-10 diagnostic criteria and whose first episode or recurrence occurred within the past 3 months and who have not received antipsychotic medication treatment; 2. Age 18-60 years old, gender not limited; 3. Folate <= 4.2 ng/ml, vitamin B12 level normal (> 179 pmol/ml); 4. Education level of junior high school or above, able to understand and cooperate with the C-BCT examination; 5.No continuous use of antibiotics for more than 3 days in the past 3 months; 6. 17.5 <= Body Mass Index (BMI) <= 30; 7. Good family support, able to understand and comply with the research requirements; 8. Regular diet, without special dietary habits.

排除标准:

1.排除脑部器质性疾病及精神发育迟滞、消化道疾病、恶性贫血、癫痫及严重的全身性疾病的患者;(肝功能异常:天门冬氨酸氨基转移酶(AST)≥2×ULN(正常上限值);或丙氨酸氨基转移酶(ALT)≥2×ULN;肾功能异常:肌酐(Cr) ≥1.5×ULN;血糖异常:空腹血糖≥7.0mmol/L;血脂异常:空腹总胆固醇>5.5mmol/L,或空腹甘油三酯>1.6mmol/L) 2. 排除根据ICD-10 诊断标准患者具有物质滥用或依赖且未完全缓解。根据病史判断患者符合ICD-10 诊断物质滥用或依赖的标准。

Exclusion criteria:

1. Patients with organic brain diseases, mental retardation, digestive tract diseases, pernicious anemia, epilepsy, and severe systemic diseases are excluded; (Liver function abnormality: Aspartate aminotransferase (AST) >= 2×ULN (normal upper limit); or Alanine aminotransferase (ALT) >= 2×ULN; Renal function abnormality: Creatinine (Cr) >= 1.5×ULN; Blood sugar abnormality: Fasting blood glucose >= 7.0 mmol/L; Lipid abnormality: Fasting total cholesterol > 5.5 mmol/L, or fasting triglycerides > 1.6 mmol/L) 2. Patients with substance abuse or dependence as diagnosed according to ICD-10 criteria and not completely relieved are excluded. The patient's condition is judged to meet the criteria for substance abuse or dependence as diagnosed by ICD-10 based on the medical history.

研究实施时间:

Study execute time:

From 2025-11-24 00:00:00 To 2028-06-30 00:00:00  

征募观察对象时间:

Recruiting time:

From 2026-01-19 00:00:00 To 2027-06-30 00:00:00  

干预措施:

Interventions:

组别:

研究组

样本量:

60

Group:

Research Group

Sample size:

干预措施:

常规抗精神病药 + 叶酸口服,15mg/天,治疗24周

干预措施代码:

Intervention:

Atypical antipsychotic drugs + oral folic acid, 15mg per day, for 24 weeks of treatment

Intervention code:

组别:

对照组

样本量:

60

Group:

control group

Sample size:

干预措施:

常规抗精神病药单药治疗12周;常规抗精神病药 + 叶酸口服,15mg/天,治疗12周

干预措施代码:

Intervention:

Monotherapy with Atypical antipsychotic drugs for 12 weeks; then Atypical antipsychotic drugs + oral folic acid, 15mg per day, for 12 weeks

Intervention code:

研究实施地点:

Countries of recruitment and research settings:

国家:

中国

省(直辖市):

陕西省 

市(区县):

 

Country:

China 

Province:

Shaanxi  

City:

 

单位(医院):

西安交通大学第一附属医院 

单位级别:

三甲 

Institution
hospital:

The First Affiliated Hospital of Xi'an Jiaotong University

Level of the institution:

Tertiary A

测量指标:

Outcomes:

指标中文名:

中国简版神经认知成套测验(C-BCT)

指标类型:

主要指标

Outcome:

Chinese simplified version of the Neurocognitive Assessment Battery(C-BCT)

Type:

Primary indicator

测量时间点:

测量方法:

Measure time point of outcome:

Measure method:

指标中文名:

阳性与阴性症状量表

指标类型:

主要指标

Outcome:

Positive and Negative Syndrome Scale

Type:

Primary indicator

测量时间点:

测量方法:

Measure time point of outcome:

Measure method:

指标中文名:

叶酸

指标类型:

次要指标

Outcome:

folic acid

Type:

Secondary indicator

测量时间点:

测量方法:

Measure time point of outcome:

Measure method:

指标中文名:

维生素B12

指标类型:

次要指标

Outcome:

Vitamin B12

Type:

Secondary indicator

测量时间点:

测量方法:

Measure time point of outcome:

Measure method:

指标中文名:

同型半胱氨酸

指标类型:

次要指标

Outcome:

Homocysteine

Type:

Secondary indicator

测量时间点:

测量方法:

Measure time point of outcome:

Measure method:

指标中文名:

炎症因子

指标类型:

次要指标

Outcome:

Inflammatory factors

Type:

Secondary indicator

测量时间点:

测量方法:

Measure time point of outcome:

Measure method:

指标中文名:

氧化应激相关指标

指标类型:

次要指标

Outcome:

Oxidative stress-related indicators

Type:

Secondary indicator

测量时间点:

测量方法:

Measure time point of outcome:

Measure method:

指标中文名:

肠道菌群

指标类型:

附加指标

Outcome:

Gut microbiota

Type:

Additional 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:

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:

标本中文名:

粪便

组织:

Sample Name:

Feces

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 60 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):

采用四因素分层区组随机化,以 “认知水平(C-BCT 量表分层)、疾病严重程度(PANSS 评分分层)、性别、年龄组” 为核心分层因素,确保 120 例受试者按 1:1 比例分配至试验组(抗精神病药 + 叶酸 15mg / 日口服)与对照组(单用抗精神病药),每组 60 例,实现四维度基线特征完全均衡。按 “认知水平 × 疾病严重程度 × 年龄组 × 性别” 构建 3×3×3×2=54 个分层区组,每个区组预设样本量 2~4 例(根据入组进度动态调整),确保每个区组内试验组与对照组样本量 1:1,且全人群中各分层因素的 3 个层级在两组中占比一致

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

The four-factor stratified block randomization method was adopted, with "cognitive level (stratified by C-BCT scale), disease severity (stratified by PANSS score), gender, and age group" as the core stratification factors. This ensured that 120 subjects were evenly distributed at a 1:1 ratio to the experimental group (antipsychotic drugs + folic acid 15mg/day orally) and the control group (single use of antipsychotic drugs), with 60 subjects in each group, achieving complete balance of baseline characteristics in four dimensions. Based on "cognitive level × disease severity × age group × gender", 3×3×3×2 = 54 stratified blocks were constructed. Each block was preset with a sample size of 2 to 4 cases (adjusted dynamically according to the enrollment progress), ensuring that the sample sizes of the experimental group and the control group were 1:1 within each block, and that the proportions of each stratification factor's three levels in the entire population were consistent in both groups.

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:

none

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

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):

中国临床试验注册中心; 世界卫生组织国际临床试验平台一级注册机构

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

Chinese Clinical Trial Registry ; A Primary Registry of International Clinical Trial Registry Platform, World Health Organization

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:

病例记录表

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

Case Record Form, CRF

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:

 2026-01-19 14:39:08