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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.

調査の概要

状態

募集

条件

介入・治療

研究の種類

介入

入学 (推定)

140

段階

  • 適用できない

連絡先と場所

このセクションには、調査を実施する担当者の連絡先の詳細と、この調査が実施されている場所に関する情報が記載されています。

研究連絡先

研究場所

    • California
      • San Francisco、California、アメリカ、94109
        • 募集
        • Alethios
        • コンタクト:

参加基準

研究者は、適格基準と呼ばれる特定の説明に適合する人を探します。これらの基準のいくつかの例は、人の一般的な健康状態または以前の治療です。

適格基準

就学可能な年齢

18年~45年 (大人)

健康ボランティアの受け入れ

はい

受講資格のある性別

女性

説明

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.

研究計画

このセクションでは、研究がどのように設計され、研究が何を測定しているかなど、研究計画の詳細を提供します。

研究はどのように設計されていますか?

デザインの詳細

  • 主な目的:他の
  • 割り当て:ランダム化
  • 介入モデル:並列代入
  • マスキング:4倍

武器と介入

参加者グループ / アーム
介入・治療
実験的:Fiber Supplement

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

Dietary fiber blend containing six prebiotic fibers.

プラセボコンパレーター:Placebo Control

Placebo control. Taken as a scoop of powder added to a drink twice daily.

Placebo control

この研究は何を測定していますか?

主要な結果の測定

結果測定
メジャーの説明
時間枠
Incidence and severity of GI adverse events (AEs) and discontinuations.
時間枠: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.

二次結果の測定

結果測定
メジャーの説明
時間枠
Changes in a custom gut health questionnaire
時間枠: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
時間枠: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
時間枠: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
時間枠: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
時間枠: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).

その他の成果指標

結果測定
メジャーの説明
時間枠
Gut Microbiome Composition
時間枠: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
時間枠: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
時間枠: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
時間枠: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
時間枠: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
時間枠: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
時間枠: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
時間枠: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
時間枠: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
時間枠: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
時間枠: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
時間枠: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).

協力者と研究者

ここでは、この調査に関係する人々や組織を見つけることができます。

スポンサー

協力者

捜査官

  • 主任研究者:Bryce Jarman, PhD、LOAM Science

研究記録日

これらの日付は、ClinicalTrials.gov への研究記録と要約結果の提出の進捗状況を追跡します。研究記録と報告された結果は、国立医学図書館 (NLM) によって審査され、公開 Web サイトに掲載される前に、特定の品質管理基準を満たしていることが確認されます。

主要日程の研究

研究開始 (実際)

2026年10月20日

一次修了 (推定)

2027年6月1日

研究の完了 (推定)

2027年9月1日

試験登録日

最初に提出

2026年10月6日

QC基準を満たした最初の提出物

2026年10月13日

最初の投稿 (実際)

2026年10月15日

学習記録の更新

投稿された最後の更新 (実際)

2026年11月12日

QC基準を満たした最後の更新が送信されました

2026年11月9日

最終確認日

2026年10月1日

詳しくは

本研究に関する用語

その他の研究ID番号

  • LOA001

個々の参加者データ (IPD) の計画

個々の参加者データ (IPD) を共有する予定はありますか?

いいえ

IPD プランの説明

The data is proprietary data.

医薬品およびデバイス情報、研究文書

米国FDA規制医薬品の研究

いいえ

米国FDA規制機器製品の研究

いいえ

この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。