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PHGG-LGG Synbiotic in Pediatric Functional Constipation (PHGG-LGG-FC)

2026年5月5日 更新者:Ener Cagri DINLEYICI、Eskisehir Osmangazi University

Effects of a Partially Hydrolyzed Guar Gum and Lacticaseibacillus Rhamnosus GG Combination on Clinical Outcomes and Microbiota in Children With Functional Constipation

This prospective, randomized controlled open-label trial evaluated the efficacy of a synbiotic consisting of partially hydrolyzed guar gum (PHGG) and Lacticaseibacillus rhamnosus GG (LGG) on clinical outcomes and gut microbiota in children with functional constipation. Children aged 4-16 years meeting Rome IV criteria were randomized to receive either synbiotic supplementation plus dietary counseling or dietary counseling alone for 12 weeks. Clinical outcomes, gastrointestinal symptoms, and stool microbiota (shotgun metagenomics) were assessed at baseline and at week 12.

研究概览

详细说明

Functional constipation is common in children and has been associated with gut microbiota dysbiosis and impaired short-chain fatty acid production. Synbiotics combining prebiotics and probiotics may improve stool characteristics and intestinal fermentation.

This study investigated whether daily supplementation with PHGG (4.3 g) plus LGG (1×10⁹ CFU) for 12 weeks improves stool frequency, consistency, gastrointestinal symptoms, and microbiota composition compared with standard dietary advice alone. Whole-genome shotgun metagenomics was performed in a subset of participants to characterize microbial and functional changes.

This study was registered retrospectively on ClinicalTrials.gov because it was initiated as an investigator-initiated academic study without initial intent for regulatory submission. Registration was completed after study completion to ensure transparency and compliance with journal and international reporting standards.

研究类型

介入性

注册 (实际的)

52

阶段

  • 不适用

联系人和位置

本节提供了进行研究的人员的详细联系信息,以及有关进行该研究的地点的信息。

学习地点

      • Istanbul、土耳其(türkiye)、34000
        • University of Health Sciences, Sancaktepe Training and Research Hospital

参与标准

研究人员寻找符合特定描述的人,称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。

资格标准

适合学习的年龄

  • 孩子

接受健康志愿者

不

描述

Inclusion Criteria:

  • Age ≥4 years
  • Diagnosis of functional constipation per Rome IV
  • Parental informed consent

Exclusion Criteria:

  • Organic causes of constipation
  • Chronic medication use
  • Antibiotics or biotics within 8 weeks
  • Age <4 years

学习计划

本节提供研究计划的详细信息,包括研究的设计方式和研究的衡量标准。

研究是如何设计的?

设计细节

  • 主要用途:治疗
  • 分配:随机化
  • 介入模型:并行分配
  • 屏蔽:无(打开标签)

武器和干预

参与者组/臂
干预/治疗
实验性的:LGG-PHGG

PHGG + LGG Synbiotic

4.3 g partially hydrolyzed guar gum

1×10⁹ CFU Lacticaseibacillus rhamnosus GG

Once daily, oral, 12 weeks

Plus standardized dietary and lifestyle counseling

4.3 g partially hydrolyzed guar gum

1×10⁹ CFU Lacticaseibacillus rhamnosus GG

Once daily, oral, 12 weeks

Plus standardized dietary and lifestyle counseling

Dietary and lifestyle counseling only
有源比较器:Control
Dietary and lifestyle counseling only
Dietary and lifestyle counseling only

研究衡量的是什么?

主要结果指标

结果测量
措施说明
大体时间
Clinical treatment success at Week 12
大体时间:12 weeks

Clinical treatment success at Week 12, defined as:

≥3 spontaneous bowel movements per week AND

Bristol Stool Scale type 3-4 AND

No longer fulfilling Rome IV criteria

12 weeks

次要结果测量

结果测量
措施说明
大体时间
Time to First Symptom Improvement
大体时间:12 weeks
Time (in days) from initiation of the intervention to the first reported improvement in constipation-related symptoms
12 weeks
Microbiota
大体时间:12 weeks
Gut microbiota composition changes
12 weeks
Time to Second Improvement Milestone
大体时间:Baseline to 12 week
Time (in days) from initiation of the intervention to the second clinically meaningful improvement milestone, defined as sustained improvement in bowel movement frequency and/or stool consistency accompanied by reduction in associated gastrointestinal symptoms, as documented in daily follow-up records.
Baseline to 12 week
School Absenteeism
大体时间:Baseline and Week 12
Number of school days missed and presence of school absenteeism due to constipation-related symptoms, as reported by parents during the study period.
Baseline and Week 12

合作者和调查者

在这里您可以找到参与这项研究的人员和组织。

研究记录日期

这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查,以确保它们在发布到公共网站之前符合特定的质量控制标准。

研究主要日期

学习开始 (实际的)

2024年8月1日

初级完成 (实际的)

2024年12月1日

研究完成 (实际的)

2024年12月31日

研究注册日期

首次提交

2026年1月14日

首先提交符合 QC 标准的

2026年5月5日

首次发布 (实际的)

2026年5月12日

研究记录更新

最后更新发布 (实际的)

2026年5月12日

上次提交的符合 QC 标准的更新

2026年5月5日

最后验证

2026年5月1日

更多信息

与本研究相关的术语

其他研究编号

  • 2024/197

药物和器械信息、研究文件

研究美国 FDA 监管的药品

不

研究美国 FDA 监管的设备产品

不

此信息直接从 clinicaltrials.gov 网站检索,没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求,请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改,我们的网站上也会自动更新.

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