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Trial Evaluating Nutritional Fiber in Digestive Symptoms of Endometriosis (TEND)

2026年11月9日 更新者：LOAM Science

A Randomized, Double-Blind, Placebo-Controlled Study to Evaluate the Safety, Tolerability, and Mechanistic Effects of a Multi-Fiber Prebiotic Dietary Supplement (LOAM) on the Gut and Vaginal Microbiome, Gastrointestinal Well-Being, and Quality-of-Life Parameters in Women With Endometriosis and Co-Existing Gastrointestinal Symptoms

This study is a double-blind, randomized, placebo-controlled study that evaluates the safety and tolerability of a fiber-based dietary supplement and the mechanistic and structure-function effects of that supplement on the gut and vaginal microbiome, gastrointestinal well-being, and quality-of-life parameters in 140 women with endometriosis and co-existing gastrointestinal symptoms over 12 weeks. The primary objective is to evaluate the safety and tolerability of the supplement, measured by the incidence and severity of gastrointestinal adverse events (AEs) and discontinuations. Secondary objectives include assessing the fibers impact on gastrointestinal symptoms and quality of life through the use of custom questionnaires built for the study population and evaluation of other endometriosis related parameters such as pelvic discomfort. Exploratory objectives focus on the exploration of the gut and vaginal microbiomes, their connection to endometriosis, and how they are impacted by the study product.

研究概览

地位

招聘中

条件

干预/治疗

研究类型

介入性

注册 (估计的)

140

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。

学习联系方式

学习地点

  • 美国
    • California
      • San Francisco、California、美国、94109
        • 招聘中
        • Alethios
        • 接触：

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

18年 至 45年 (成人)

接受健康志愿者

是的

有资格学习的性别

女性

描述

Inclusion Criteria:

  • Confirmed diagnosis of endometriosis (by imaging, laparoscopy, or physician clinical assessment).
  • Enriched gastrointestinal phenotype: self-reported gastrointestinal symptoms on at least 3 days per week for the preceding 3 months, including at least one of bloating, constipation, or abdominal discomfort
  • Predominantly Bristol Stool Scale Type 1-3 (constipation-predominant), or self-reported bloating as a dominant symptom.
  • Stable hormonal status: either no hormonal therapy, or stable hormonal therapy (combined oral contraceptive, progestin, or GnRH analogue) for at least 3 months with no planned change during the study.
  • Estimated habitual dietary fiber intake below 25 g/day based
  • Willingness to share menstrual cycle data.
  • Willing to maintain stable diet, physical activity, and medication regimens throughout the study.
  • Able to provide electronic informed consent and to comply with stool and vaginal self-sampling procedures.
  • Ownership and consistent use of a home body-weight scale for the duration of the study, to support the standardized at-home morning weighing protocol.

Exclusion Criteria:

  • Inflammatory bowel disease (Crohn's disease, ulcerative colitis), celiac disease, or other organic gastrointestinal disease.
  • Severe irritable bowel syndrome (IBS) requiring active pharmacological management. Mild-to-moderate overlap is permitted as part of the enrichment strategy.
  • Antibiotic use within 8 weeks prior to baseline or anticipated during the study.
  • Probiotic, prebiotic, or fiber supplement use within 4 weeks prior to baseline (washout required).
  • Major gastrointestinal surgery, excluding appendectomy or cholecystectomy more than 6 months prior, and excluding surgical intervention for endometriosis.
  • Current pregnancy, breastfeeding, or plans to conceive during the study.
  • Severe constipation requiring regular prescription laxatives.
  • Significant renal, hepatic, cardiac, or endocrine disease.
  • Active malignancy.
  • Known allergy or intolerance to any LOAM fiber component.
  • Significant dietary change or weight-loss intervention within the preceding 3 months.
  • Use of medications known to significantly alter gut motility or the microbiome (for example, recent metformin initiation, regular opioid use, or chronic proton-pump inhibitor use), per investigator judgment.
  • Any surgical intervention for endometriosis (including laparoscopy, laparotomy, or endometrioma excision) within the 6 months prior to screening, as post-surgical physiological changes may confound symptom and biomarker assessments.

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：其他
  • 分配：随机化
  • 介入模型：并行分配
  • 屏蔽：四人间

武器和干预

参与者组/臂
干预/治疗
实验性的：Fiber Supplement

Fiber supplement providing 20 grams/day of dietary fiber. Taken as a scoop of powder added to a drink twice daily.
膳食补充剂：Fiber

Dietary fiber blend containing six prebiotic fibers.
安慰剂比较：Placebo Control

Placebo control. Taken as a scoop of powder added to a drink twice daily.
膳食补充剂：Placebo

Placebo control

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
Incidence and severity of GI adverse events (AEs) and discontinuations.
大体时间：An adverse event questionnaire will be administered at baseline and at Week 4, Week 6, Week 8, and Week 12 of supplementation. Adverse events will also be collected ad hoc throughout the study period via a reporting form.

To evaluate the safety and tolerability of the fiber blend.
An adverse event questionnaire will be administered at baseline and at Week 4, Week 6, Week 8, and Week 12 of supplementation. Adverse events will also be collected ad hoc throughout the study period via a reporting form.

次要结果测量

结果测量
措施说明
大体时间
Changes in a custom gut health questionnaire
大体时间：From baseline sample collection through the end of supplementation (Baseline, Week 4, Week 6, Week 8, and Week 12).

A custom gut health questionnaire using a 5-point Likert Scale (1-5) where 1 is no symptoms and 5 is the worst symptoms designed to evaluate GI symptoms relevant to endometriosis.
From baseline sample collection through the end of supplementation (Baseline, Week 4, Week 6, Week 8, and Week 12).
DASS-21
大体时间：From baseline sample collection through the end of supplementation (Baseline, Week 4, Week 6, Week 8, and Week 12).

Self-reported mental health tool to evaluate depression, anxiety, and stress that uses a 4-point Likert Scale (0-3) where 0 is not applicable and 3 is highly applicable.
From baseline sample collection through the end of supplementation (Baseline, Week 4, Week 6, Week 8, and Week 12).
Pelvic discomfort duration over 24 hours
大体时间：From baseline sample collection through the end of supplementation (Daily).

Evaluation of pelvic discomfort associated with endometriosis over the previous 24 hours using a 0-24 scale, where 0 is no hours of pelvic discomfort and 24 is pelvic discomfort for the entire duration of the last 24 hours.
From baseline sample collection through the end of supplementation (Daily).
Pelvic discomfort severity
大体时间：From baseline sample collection through the end of supplementation (daily).

Pelvic discomfort severity assessed using a 10 point numerical rating scale (0-10) with zero being no discomfort and ten being the highest level of discomfort.
From baseline sample collection through the end of supplementation (daily).
Body Weight
大体时间：From baseline sample collection through the end of supplementation (Baseline, Week 4, Week 6, Week 8, and Week 12).

Performed at home using a scale
From baseline sample collection through the end of supplementation (Baseline, Week 4, Week 6, Week 8, and Week 12).

其他结果措施

结果测量
措施说明
大体时间
Gut Microbiome Composition
大体时间：Three separate samplings, one at baseline, one at six weeks, and one at 12 weeks.

Evaluation of the gut microbiome composition using shotgun metagenomic sequencing.
Three separate samplings, one at baseline, one at six weeks, and one at 12 weeks.
Gut Microbiome Function
大体时间：Three separate samplings, one at baseline, one at six weeks, and one at 12 weeks.

Evaluation of the gut microbiome function using shotgun metagenomic sequencing.
Three separate samplings, one at baseline, one at six weeks, and one at 12 weeks.
Vaginal Microbiome Composition
大体时间：Three separate samplings, one at baseline, one at six weeks, and one at 12 weeks.

Evaluation of the vaginal microbiome composition using shotgun metagenomic sequencing.
Three separate samplings, one at baseline, one at six weeks, and one at 12 weeks.
Custom endometriosis quality of life survey
大体时间：From baseline sample collection through the end of supplementation (Baseline, Week 4, Week 6, Week 8, and Week 12).

A custom survey designed to assess the impact of endometriosis on an individuals quality of life. Questions are scored using a 5-point Likert Scale (1-5) where 1 is no impact on quality of life and 5 is the highest level of impact.
From baseline sample collection through the end of supplementation (Baseline, Week 4, Week 6, Week 8, and Week 12).
Vaginal Microbiome Function
大体时间：Three separate samplings, one at baseline, one at six weeks, and one at 12 weeks.

Evaluation of the vaginal microbiome function using shotgun metagenomic sequencing.
Three separate samplings, one at baseline, one at six weeks, and one at 12 weeks.
Endometriosis-related Medication Use
大体时间：From enrollment through the conclusion of supplementation (Baseline, Week 4, Week 6, Week 8, and Week 12).

Medication use assess by open-ended questionnaire.
From enrollment through the conclusion of supplementation (Baseline, Week 4, Week 6, Week 8, and Week 12).
Deep dyspareunia
大体时间：From baseline through the conclusion of supplementation (Baseline, Week 4, Week 6, Week 8, and Week 12).

Deep dyspareunia severity assessed using a 10 point numerical rating scale (0-10) with zero being no discomfort and ten being the highest level of discomfort.
From baseline through the conclusion of supplementation (Baseline, Week 4, Week 6, Week 8, and Week 12).
Dysmenorrhea
大体时间：From baseline through the conclusion of supplementation (daily).

Dysmenorrhea severity assessed using a 10 point numerical rating scale (0-10) with zero being no discomfort and ten being the highest level of discomfort.
From baseline through the conclusion of supplementation (daily).
Non-menstrual pelvic discomfort
大体时间：From baseline through the conclusion of supplementation (Baseline, Week 4, Week 6, Week 8, and Week 12).

Non-menstrual pelvic discomfort severity assessed using a 10 point numerical rating scale (0-10) with zero being no discomfort and ten being the highest level of discomfort.
From baseline through the conclusion of supplementation (Baseline, Week 4, Week 6, Week 8, and Week 12).
Dyschezia
大体时间：From baseline through the conclusion of supplementation (daily).

Dyschezia severity assessed using a 10 point numerical rating scale (0-10) with zero being no discomfort and ten being the highest level of discomfort.
From baseline through the conclusion of supplementation (daily).
Productivity Impairment
大体时间：From baseline through the conclusion of supplementation (Baseline, Week 4, Week 6, Week 8, and Week 12).

Measured using the Work Productivity and Activity Impairment Questionnaire, which includes open ended questions to assess hours missed as well as personal assessments of productivity using a 10 point numerical rating scale (0-10) with zero being no effect and ten being highly impacted.
From baseline through the conclusion of supplementation (Baseline, Week 4, Week 6, Week 8, and Week 12).
Bloating severity and abdominal girth
大体时间：From baseline through the conclusion of supplementation (Baseline, Week 4, Week 6, Week 8, and Week 12).

Bloating severity assessed using a 10 point numerical rating scale (0-10) with zero being no bloating and ten being the highest level of bloating and abdominal girth measured by tape measure.
From baseline through the conclusion of supplementation (Baseline, Week 4, Week 6, Week 8, 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。

赞助

LOAM Science

合作者

Alethios, Inc.

调查人员

  • 首席研究员：Bryce Jarman, PhD、LOAM Science

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)

2026年10月20日

初级完成 (估计的)

2027年6月1日

研究完成 (估计的)

2027年9月1日

研究注册日期

首次提交

2026年10月6日

首先提交符合 QC 标准的

2026年10月13日

首次发布 (实际的)

2026年10月15日

研究记录更新

最后更新发布 (实际的)

2026年11月12日

上次提交的符合 QC 标准的更新

2026年11月9日

最后验证

2026年10月1日

更多信息

与本研究相关的术语

关键字

其他相关的 MeSH 术语

其他研究编号

  • LOA001

计划个人参与者数据 (IPD)

计划共享个人参与者数据 (IPD)？

不

IPD 计划说明

The data is proprietary data.

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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