ChiCTR2500104594 版本V1.0 版本创建时间2025/06/19 11:15:58 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:

ChiCTR2500104594 

最近更新日期:

Date of Last Refreshed on:

2025-06-19 11:15:26 

注册时间:

Date of Registration:

2025-06-19 00:00:00 

注册号状态:

补注册

Registration Status:

Retrospective registration

注册题目:

妊娠叶酸补充与妊娠结局的关系

Public title:

The Association Between Prenatal Folic Acid Supplementation and Pregnancy Outcomes

注册题目简写:

English Acronym:

研究课题的正式科学名称:

妊娠叶酸补充与妊娠结局的关系

Scientific title:

The Association Between Prenatal Folic Acid Supplementation and Pregnancy Outcomes

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:

彭丽敏 

研究负责人:

彭丽敏 

Applicant:

Limin Peng 

Study leader:

Limin Peng 

申请注册联系人电话:

Applicant telephone:

+86 147 4572 7109

研究负责人电话:

Study leader's
telephone:

+86 147 4572 7109

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:

1036665775@qq.com

研究负责人电子邮件:

Study leader's E-mail:

1036665775@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:

黑龙江省哈尔滨市香坊区和平路24号

研究负责人通讯地址:

黑龙江省哈尔滨市香坊区和平路24号

Applicant address:

No. 24, Heping Road, Xiangfang District, Harbin, Heilongjiang

Study leader's address:

No. 24, Heping Road, Xiangfang District, Harbin, Heilongjiang

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:

黑龙江中医药大学附属第一医院

Applicant's institution:

The First Affiliated Hospital of Heilongjiang University of Chinese Medicine

研究负责人所在单位:

黑龙江中医药大学附属第一医院

Affiliation of the Leader:

The First Affiliated Hospital of Heilongjiang University of Chinese Medicine

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:

HZYLLKY202401202

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:

黑龙江中医药大学附属第一医院伦理委员会

Name of the ethic committee:

Ethics Committee of The First Affiliated Hospital of Heilongjiang University of Chinese Medicine

伦理委员会批准日期:

Date of approved by ethic committee:

2024-05-20 00:00:00

伦理委员会联系人:

杨雪

Contact Name of the ethic committee:

Yang Xue

伦理委员会联系地址:

黑龙江省哈尔滨市香坊区和平路24号

Contact Address of the ethic committee:

No. 24, Heping Road, Xiangfang District, Harbin, Heilongjiang

伦理委员会联系人电话:

Contact phone of the ethic committee:

+86 451 8211 1401

伦理委员会联系人邮箱:

Contact email of the ethic committee:

hljzylunli@163.com

研究实施负责(组长)单位:

黑龙江中医药大学附属第一医院

Primary sponsor:

The First Affiliated Hospital of Heilongjiang University of Chinese Medicine

研究实施负责(组长)单位地址:

黑龙江省哈尔滨市香坊区和平路24号

Primary sponsor's address:

No. 24, Heping Road, Xiangfang District, Harbin, Heilongjiang

试验主办单位(项目批准或申办者):

Secondary sponsor:

国家:

中国

省(直辖市):

黑龙江

市(区县):

哈尔滨

Country:

China

Province:

Heilongjiang

City:

Harbin

单位(医院):

黑龙江中医药大学附属第一医院

具体地址:

黑龙江省哈尔滨市香坊区和平路24号

Institution
hospital:

The First Affiliated Hospital of Heilongjiang University of Chinese Medicine

Address:

No. 24, Heping Road, Xiangfang District, Harbin, Heilongjiang

经费或物资来源:

自筹

Source(s) of funding:

Self-raised funds

研究疾病:

无  

Target disease:

None

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:

横断面 

Study design:

Cross-sectional 

研究目的:

1、研究妊娠期母体红细胞叶酸水平与妊娠并发症和子代先天疾病风险之间的关系; 2、评估妊娠叶酸补充时机与不良妊娠结局发生的关系。  

Objectives of Study:

1. To investigate the association between maternal red blood cell (RBC) folate levels during pregnancy and the risks of pregnancy complications and congenital disorders in offspring. 2. To assess the relationship between the timing of folic acid supplementation in pregnancy and the occurrence of adverse pregnancy outcomes.

药物成份或治疗方案详述:

叶酸的主要成分包括蝶啶、谷氨酸和对氨基苯甲酸。 本研究为观察性研究,不向研究对象施加干预因素。 对照组(n=100):孕前及孕期均未补充叶酸; 试验组(n=300): 1.孕早期组(备孕期-妊娠<14周)(n=100):备孕时开始补充叶酸,0.4 mg/d,持续至妊娠满12周;或孕早期(妊娠<14周)首次开始补充叶酸,0.4 mg/d,持续口服12周。 2.孕中期组(妊娠第14周-27周+6天)(n=100):妊娠中期首次开始补充叶酸,0.4 mg/d,持续口服12周。 3.孕期组(n=100):整个妊娠过程中都在补充叶酸,0.4 mg/d,持续口服12周,12周后继续补充叶酸,0.1 mg/d,至妊娠结束分娩。 指标采集方法: 1. 入组当天(基线):晨起空腹采集静脉血5ml/人;填写调查问卷(见附件1)。 2. 访视:受试者开始服用叶酸后每2周采集静脉血5ml/人,检测红细胞叶酸指标,直至停止口服叶酸。 2. 分娩结束(终点):胎盘娩出后采集脐带血(脐静脉)5ml/人;记录孕妇妊娠并发症及新生儿指标。妊娠并发症包括妊娠期高血压、妊娠期糖尿病、先兆子痫(PE)、贫血、小于胎龄(SGA)儿、胎盘早剥、深静脉血栓形成、死产、反复流产和早产。新生儿指标包括出生体重、头围、头长、胎盘重量、发育情况、DNA损伤、先天心脏病、神经管缺陷等先天性畸形疾病。 血液处置方法:采用液相色谱串联质谱法(LC-MS/MS)检测如下指标:血浆指标:5-甲基四氢叶酸、叶酸、同型半胱氨酸、B2、B3、B6、甲基丙二酸(即维生素B12反向标志物)水平。红细胞指标:5-甲基四氢叶酸、叶酸、VB12、B2、B3、B6水平。 

Description for medicine or protocol of treatment in detail:

The primary chemical constituents of folic acid include pteridine glutamic acid and para-aminobenzoic acid (PABA). Study Design: This is an observational study with no interventional measures applied to participants. Groups - **Control group (n=100):** No folic acid supplementation during preconception or pregnancy. - **Intervention group (n=300):** 1. **Early Pregnancy Subgroup (preconception to <14 weeks gestation) (n=100):** - Initiated folic acid supplementation (0.4 mg/d) at preconception and continued until 12 weeks of gestation; - **OR** - First supplementation initiated in early pregnancy (<14 weeks) with 0.4 mg/d for 12 consecutive weeks. 2. **Mid-Pregnancy Subgroup (14 to 27+6 weeks gestation) (n=100):** - First supplementation initiated in mid-pregnancy (0.4 mg/d) for 12 consecutive weeks. 3. **Full Pregnancy Subgroup (n=100):** - Continuous supplementation (0.4 mg/d) throughout pregnancy for 12 weeks followed by 0.1 mg/d until delivery. --- **Data Collection Protocol** 1. **Baseline (Enrollment Day):** - Fasting venous blood (5 mL per participant) was collected in the morning. - Participants completed standardized questionnaires (see **Appendix 1**). 2. **Follow-up Visits:** - Venous blood (5 mL per participant) was collected biweekly after initiating folic acid supplementation until discontinuation. - **Measured Parameter:** Red blood cell (RBC) folate levels. 3. **Endpoint (Postpartum):** - Umbilical cord blood (5 mL from the umbilical vein) was collected after placental delivery. - **Recorded Outcomes:** - **Maternal Complications:** Hypertensive disorders of pregnancy (HDP) gestational diabetes mellitus (GDM) preeclampsia (PE) anemia small for gestational age (SGA) placental abruption deep vein thrombosis (DVT) stillbirth recurrent miscarriage preterm birth. - **Neonatal Indicators:** Birth weight head circumference body length placental weight developmental status DNA damage congenital heart defects neural tube defects (NTDs) and other congenital anomalies. **Biochemical Analysis** Blood samples were analyzed using **liquid chromatography-tandem mass spectrometry (LC-MS/MS)** for: - **Plasma Biomarkers:** 5-methyltetrahydrofolate (5-MTHF) folate homocysteine vitamins B2 (riboflavin) B3 (niacin) B6 (pyridoxine) and methylmalonic acid (MMA a reverse biomarker of vitamin B12). - **RBC Biomarkers:** 5-MTHF folate vitamin B12 B2 B3 and B6.  

纳入标准:

纳入标准 (1) 20周岁<=年龄<=45周岁,女性; (2)已确认怀孕或者备孕者; (3)自愿参加试验并签署知情同意书。 以上条件必须同时满足。

Inclusion criteria

Inclusion Criteria 1. Female aged 20 to 45 years (inclusive); 2. Confirmed pregnancy or actively planning to conceive; 3. Voluntary participation with written informed consent. All criteria must be met simultaneously.*

排除标准:

排除标准: (1) 孕妇有叶酸过敏史或对叶酸补充剂成分过敏; (2)孕妇已经服用或计划服用其他药物或补充剂,可能影响叶酸的吸收或代谢; (3)孕妇有严重心血管疾病、肝功能异常、肾功能异常或其他严重系统性疾病; (4)孕妇吸烟、或有精神疾病、药物滥用史; (5) 孕妇是多胎妊娠; (6)孕妇有疾病史(高血压,糖尿病,贫血,深静脉血栓等); (7)受试者入组时静脉血红细胞叶酸水平高于906nmol/L,则不予入组; (8)根据研究者的判断,有降低入组可能性或使入组复杂化的情况,如工作环境变动等易造成失访的情况,或由于精神、认知或行为障碍不能给予充分知情同意者。 以上排除标准只要满足1条,即不可入组。

Exclusion criteria:

Exclusion Criteria 1. History of folic acid allergy or hypersensitivity to any component of the supplementation; 2. Current or planned use of medications or supplements known to interfere with folic acid absorption or metabolism (e.g. anticonvulsants methotrexate); 3. Severe cardiovascular hepatic or renal dysfunction or other major systemic diseases** (e.g. ALT/AST >2×ULN eGFR <60 mL/min/1.73m2); 4.Active smoking psychiatric disorders or history of substance abuse; 5. Multifetal pregnancy (twins or higher-order multiples); 6. Pre-existing medical conditions** (hypertension diabetes anemia deep vein thrombosis [DVT] etc.); 7. Baseline venous RBC folate concentration >906 nmol/L** (precluding supplementation efficacy assessment); 8. Conditions deemed by investigators to reduce enrollment feasibility** (e.g. high risk of loss to follow-up due to relocation) **or inability to provide informed consent (cognitive/behavioral impairments). Exclusionary if any single criterion is met.

研究实施时间:

Study execute time:

From 2024-03-01 00:00:00 To 2025-05-14 00:00:00  

征募观察对象时间:

Recruiting time:

From 2024-05-22 00:00:00 To 2025-03-24 00:00:00

干预措施:

Interventions:

组别:

孕早期组

样本量:

100

Group:

Early pregnancy group

Sample size:

干预措施:

干预措施代码:

Intervention:

Start taking folic acid supplements (0.4 mg daily) when preparing for pregnancy, continuing until 12 completed weeks of gestation; or, if supplementation is initiated for the first time during early pregnancy (gestational age <14 weeks), take 0.4 mg daily and maintain oral intake for 12 consecutive weeks.

Intervention code:

组别:

孕中期组

样本量:

100

Group:

Second trimester group

Sample size:

干预措施:

干预措施代码:

Intervention:

If folic acid supplementation is initiated for the first time during the second trimester (gestational age 14 weeks to 27 weeks +6 days), take 0.4 mg daily and maintain oral supplementation for 12 consecutive weeks.

Intervention code:

组别:

孕晚期组

样本量:

100

Group:

Third trimester group

Sample size:

干预措施:

干预措施代码:

Intervention:

For cases where folic acid supplementation is maintained throughout the entire pregnancy, take 0.4 mg daily via oral administration for 12 consecutive weeks, followed by a reduced dose of 0.1 mg daily until delivery.

Intervention code:

组别:

对照组

样本量:

100

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):

黑龙江 

市(区县):

哈尔滨 

Country:

China

Province:

Heilongjiang

City:

Harbin

单位(医院):

黑龙江中医药大学附属第一医院 

单位级别:

三级 

Institution
hospital:

The First Affiliated Hospital of Heilongjiang University of Chinese Medicine

Level of the institution:

Tertiary

测量指标:

Outcomes:

指标中文名:

血浆指标:5-甲基四氢叶酸、叶酸、同型半胱氨酸、B2、B3、B6、甲基丙二酸(即维生素B12反向标志物)水平。

指标类型:

主要指标

Outcome:

Plasma Biomarkers: 5-methyltetrahydrofolate (5-MTHF) folate homocysteine vitamins B2 (riboflavin) B3 (niacin) B6 (pyridoxine) and methylmalonic acid (MMA a reverse biomarker of vitamin B12).

Type:

Primary indicator

测量时间点:

1.入组当天(基线):晨起空腹采集静脉血5ml/人;2.访视时:开始服用叶酸后每2周采集静脉血5ml/人,直至停止口服叶酸;3. 分娩结束(终点):胎盘娩出后采集脐带血(脐静脉)5ml/人。

测量方法:

液相色谱串联质谱法

Measure time point of outcome:

1. Enrollment day (Baseline): Fasting venous blood (5 mL per participant) will be collected in the morning. 2. During follow-up visits: Venous blood (5 mL per participant) will be collected every 2 weeks after initiating folic acid supplementation until discontinuation of oral folic acid. 3. Post-delivery (Endpoint): Umbilical cord blood (umbilical vein, 5 mL per participant) will be collected after placental delivery.

Measure method:

LC-MS/MS

指标中文名:

红细胞指标:5-甲基四氢叶酸、叶酸、VB12、B2、B3、B6水平。

指标类型:

主要指标

Outcome:

RBC Biomarkers: 5-MTHF folate vitamin B12 B2 B3 and B6.

Type:

Primary indicator

测量时间点:

1.入组当天(基线):晨起空腹采集静脉血5ml/人;2.访视时:开始服用叶酸后每2周采集静脉血5ml/人,直至停止口服叶酸;3. 分娩结束(终点):胎盘娩出后采集脐带血(脐静脉)5ml/人。

测量方法:

液相色谱串联质谱法

Measure time point of outcome:

1. Enrollment day (Baseline): Fasting venous blood (5 mL per participant) will be collected in the morning. 2. During follow-up visits: Venous blood (5 mL per participant) will be collected every 2 weeks after initiating folic acid supplementation until discontinuation of oral folic acid. 3. Post-delivery (Endpoint): Umbilical cord blood (umbilical vein, 5 mL per participant) will be collected after placental delivery.

Measure method:

LC-MS/MS

指标中文名:

妊娠并发症:妊娠期高血压、妊娠期糖尿病、先兆子痫(PE)、贫血、小于胎龄(SGA)儿、胎盘早剥、深静脉血栓形成、死产、反复流产和早产。

指标类型:

次要指标

Outcome:

Pregnancy complications: Gestational hypertension; gestational diabetes mellitus (GDM); preeclampsia (PE); anemia; small for gestational age (SGA) infant; placental abruption; deep vein thrombosis; stillbirth; recurrent miscarriage; and preterm birth.

Type:

Secondary indicator

测量时间点:

分娩后一周

测量方法:

Measure time point of outcome:

One week postpartum

Measure method:

指标中文名:

新生儿指标:出生体重、头围、头长、胎盘重量、发育情况、DNA损伤、先天心脏病、神经管缺陷等先天性畸形疾病。

指标类型:

次要指标

Outcome:

Neonatal parameters: birth weight; head circumference; head length; placental weight; developmental status; DNA damage; congenital heart disease; neural tube defects; and other congenital malformations.

Type:

Secondary indicator

测量时间点:

分娩后一周

测量方法:

Measure time point of outcome:

One week postpartum

Measure method:

采集人体标本:

Collecting sample(s)
from participants:

标本中文名:

静脉血

组织:

Sample Name:

Venous 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:

结束

/Completed

年龄范围:

Participant age:

最小 Min age 20 years
最大 Max age 45 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

是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):

研究结束后5年通过Resman网络数据平台共享原始数据(http://www.medresman.org.cn/uc/index.aspx)

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

IPD would be shared through ResMan after the study completed for 5 years ((http://www.medresman.org.cn/uc/index.aspx))

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:

数据采集使用病历记录表(CRF) 数据管理EDC系统使用临床试验公共管理平台Resman(http://www.medresman.org.cn/uc/index.aspx)

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

Data collection employs case report forms (CRFs). Data management is performed using the Resman clinical trial common management platform as the EDC system. (http://www.medresman.org.cn/uc/index.aspx)

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:

 2025-06-19 11:15:26