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Fermented Foods and Bowel Health in SCI

2026년 6월 5일 업데이트: Jia Li, Ohio State University

High Fermented Food Intake to Improve Gut Microbiome and Bowel Dysfunction in Individuals With SCI

The goal of this clinical trial is to learn whether consuming a high fermented food diet improves bowel function and gut health in adults with chronic spinal cord injury (SCI). The study will also evaluate the feasibility and tolerability of consuming fermented foods daily for 10 weeks. The main questions it aims to answer are:

  1. Does a high fermented food diet improve neurogenic bowel dysfunction symptoms and colonic transit in adults with SCI?
  2. Does fermented food intake change gut microbiome composition, short-chain fatty acid production, and intestinal inflammation?

Researchers will compare a high fermented food diet to a control diet to evaluate effects on bowel health and gut microbiome outcomes.

Participants will:

  • Consume study foods daily for 10 weeks
  • Attend 2 in-person study visits
  • Collect stool samples at home and ship them overnight to the research team using provided collection kits and prepaid shipping materials
  • Complete bowel health questionnaires and dietary recalls
  • Undergo Sitz marker testing with abdominal X-rays to assess colonic transit
  • Participate in biweekly monitoring contacts throughout the study period

연구 개요

상태

아직 모집하지 않음

정황

개입 / 치료

연구 유형

중재적

등록 (추정된)

44

단계

  • 해당 없음

연락처 및 위치

이 섹션에서는 연구를 수행하는 사람들의 연락처 정보와 이 연구가 수행되는 장소에 대한 정보를 제공합니다.

연구 연락처

연구 장소

  • 미국
    • Ohio
      • Columbus, Ohio, 미국, 43210
        • Ohio State University
        • 연락하다:

참여기준

연구원은 적격성 기준이라는 특정 설명에 맞는 사람을 찾습니다. 이러한 기준의 몇 가지 예는 개인의 일반적인 건강 상태 또는 이전 치료입니다.

자격 기준

공부할 수 있는 나이

  • 성인
  • 고령자

건강한 자원 봉사자를 받아들입니다

아니

설명

Inclusion Criteria:

  • Adults aged 18-70 years
  • At least 1 year post-onset of spinal cord injury, consistent with chronic spinal cord injury
  • Traumatic spinal cord injury involving cervical or thoracic levels
  • American Spinal Injury Association Impairment Scale classification A-D
  • Medically stable, with no recent hospitalizations or acute illnesses
  • Able to safely consume study foods, including fermented and control food products

  • Experiencing neurogenic bowel dysfunction, defined by at least one of the following:

    1. Three or fewer bowel movements per week
    2. More than 60 minutes required per bowel care routine
    3. Symptoms of incomplete evacuation
    4. Abdominal distension
    5. Fecal incontinence
  • Established and stable bowel program, defined as a consistent individualized routine of timing, frequency, and evacuation methods that has remained unchanged for at least 4 weeks before enrollment

Exclusion Criteria:

  • Antibiotic use within the past 4 weeks
  • Active gastrointestinal disease, including Crohn's disease, ulcerative colitis, celiac disease, or gastrointestinal obstruction
  • Current intake of probiotics or fermented foods exceeding 3 servings per day
  • Pregnancy or breastfeeding
  • Recent major bowel surgery within the past 12 weeks
  • Unresolved fecal impaction
  • Unstable bowel regimen that could interfere with accurate motility assessment

  • Inability to safely undergo Sitz marker testing, including any of the following:

    1. Inability to swallow the capsule
    2. Pregnancy, due to radiation exposure
    3. Contraindication to abdominal X-ray procedures

공부 계획

이 섹션에서는 연구 설계 방법과 연구가 측정하는 내용을 포함하여 연구 계획에 대한 세부 정보를 제공합니다.

연구는 어떻게 설계됩니까?

디자인 세부사항

  • 주 목적: 치료
  • 할당: 무작위
  • 중재 모델: 병렬 할당
  • 마스킹: 더블

무기와 개입

참가자 그룹 / 팔
개입 / 치료
실험적: Fermented Food Arm
Fermented food arm: participants randomized to the fermented foods arm will consume ≥6 servings/day of fermented foods after a graded ramp-up to minimize intolerance. A 3-week ramp-up (weeks 1-3) will increase intake from 2 to 6 servings/day, followed by a 7-week full-intake phase (weeks 4-10). To avoid single-food dominance and improve microbiome diversity, participants will be required to consume ≥3 categories/day (e.g., vegetables, dairy, soy, tea, brine) and rotate through all core fermented food categories and consume a variety of items across a 2-3-day period. This will ensure all core items are consumed throughout the week. Core food items will be delivered biweekly.
다른: fermented foods
Participants randomized to the fermented foods arm will consume ≥6 servings/day of fermented foods after a graded ramp-up to minimize intolerance.
장치: Sitz Marker Test
Colonic transit time will be assessed using the Sitz marker test, a standardized radiopaque marker method for evaluating bowel motility. Participants will swallow a capsule containing radiopaque markers, and abdominal X-rays will be obtained on day 5 to determine the number and distribution of retained markers throughout the colon. Greater marker retention indicates slower colonic transit, whereas fewer retained markers indicate faster transit and improved bowel motility.
위약 비교기: Control Diet Arm
Participants randomized to the control arm will receive non-fermented versions of the base foods consumed by the fermented foods arm and will be instructed to avoid fermented foods during the trial.
장치: Sitz Marker Test
Colonic transit time will be assessed using the Sitz marker test, a standardized radiopaque marker method for evaluating bowel motility. Participants will swallow a capsule containing radiopaque markers, and abdominal X-rays will be obtained on day 5 to determine the number and distribution of retained markers throughout the colon. Greater marker retention indicates slower colonic transit, whereas fewer retained markers indicate faster transit and improved bowel motility.
다른: Control diet
Participants randomized to the control arm will receive non-fermented versions of the base foods consumed by the fermented food arm and will be instructed to avoid fermented foods during the trial.

연구는 무엇을 측정합니까?

주요 결과 측정

결과 측정
측정값 설명
기간
Fecal microbiome composition assessed by shotgun metagenomic sequencing
기간: Baseline, weeks 5 and 10
Stool samples will be analyzed using shotgun metagenomic sequencing to characterize gut microbial taxonomic composition. Outcomes may include relative abundance of bacterial taxa and alpha/beta diversity metrics.
Baseline, weeks 5 and 10
Gut microbiome functional potential measured by shotgun metagenomic sequencing
기간: Baseline, week 5, and week 10
Shotgun metagenomic sequencing data will be used to assess microbial functional potential, including gene family, KEGG Ortholog, and metabolic pathway/module abundance.
Baseline, week 5, and week 10
Fecal calprotectin measured by ELISA
기간: Baseline, weeks 5 and 10
Fecal calprotectin concentration will be measured in stool samples using an ELISA assay. Results will be reported as fecal calprotectin concentration, with higher values indicating greater intestinal inflammation.
Baseline, weeks 5 and 10
Fecal Short Chain Fatty Acid measured by LC-MS/MS
기간: Baseline, weeks 5 and 10
Concentrations of fecal short-chain fatty acids, including acetate, propionate, butyrate, and branched-chain fatty acids, will be quantified using LC-MS/MS. Results will be reported as fecal SCFA concentrations.
Baseline, weeks 5 and 10

2차 결과 측정

결과 측정
측정값 설명
기간
Neurogenic bowel dysfunction measured by the Neurogenic Bowel Dysfunction Score
기간: Baseline, weeks 5 and 10
Neurogenic bowel dysfunction will be assessed using the Neurogenic Bowel Dysfunction Score. Total scores range from 0 to 47, with higher scores indicating more severe bowel dysfunction.
Baseline, weeks 5 and 10
Colonic transit measured by the Sitz marker test
기간: Baseline, week 10
Colonic transit will be assessed using the Sitz marker test. Participants will ingest a capsule containing radiopaque markers, and abdominal X-rays will be used to quantify the number and distribution of retained markers. Greater marker retention indicates slower colonic transit.
Baseline, week 10
Constipation severity measured by the Constipation Severity Instrument
기간: Baseline, weeks 5 and 10
Constipation severity will be assessed using the Constipation Severity Instrument (CSI), a 16-item questionnaire with total scores ranging from 0 to 73, where higher scores indicate greater constipation severity.
Baseline, weeks 5 and 10
Stool consistency measured by the Bristol Stool Form Scale
기간: Baseline, weeks 5 and 10
Stool consistency will be assessed using the Bristol Stool Form Scale, a 7-point scale ranging from Type 1, separate hard lumps, to Type 7, entirely liquid stool. Types 3-4 generally reflect more normal stool form.
Baseline, weeks 5 and 10

공동 작업자 및 조사자

여기에서 이 연구와 관련된 사람과 조직을 찾을 수 있습니다.

스폰서

Ohio State University

연구 기록 날짜

이 날짜는 ClinicalTrials.gov에 대한 연구 기록 및 요약 결과 제출의 진행 상황을 추적합니다. 연구 기록 및 보고된 결과는 공개 웹사이트에 게시되기 전에 특정 품질 관리 기준을 충족하는지 확인하기 위해 국립 의학 도서관(NLM)에서 검토합니다.

연구 주요 날짜

연구 시작 (추정된)

2026년 8월 1일

기본 완료 (추정된)

2029년 7월 31일

연구 완료 (추정된)

2029년 7월 31일

연구 등록 날짜

최초 제출

2026년 5월 27일

QC 기준을 충족하는 최초 제출

2026년 6월 5일

처음 게시됨 (실제)

2026년 6월 10일

연구 기록 업데이트

마지막 업데이트 게시됨 (실제)

2026년 6월 10일

QC 기준을 충족하는 마지막 업데이트 제출

2026년 6월 5일

마지막으로 확인됨

2026년 6월 1일

추가 정보

이 연구와 관련된 용어

키워드

추가 관련 MeSH 약관

기타 연구 ID 번호

  • 1519842

개별 참가자 데이터(IPD) 계획

개별 참가자 데이터(IPD)를 공유할 계획입니까?

예

IPD 계획 설명

De-identified individual participant data (IPD) underlying published results, including clinical, dietary, bowel function, metabolomic, and microbiome-derived datasets, will be shared within 12 months of primary publication or study completion, whichever occurs first. Processed clinical and omics datasets will be shared through the Open Data Commons for Spinal Cord Injury (ODC-SCI) and Vivli.

IPD 공유 기간

Data will be available beginning 12 months after publication of the primary study results or 12 months after study completion, whichever occurs first, and will remain available indefinitely.

IPD 공유 액세스 기준

De-identified data will be available to qualified investigators for scientifically sound research purposes. Requests will be reviewed by the study investigators and/or repository governance committees. Data will be provided under applicable data use agreements and in accordance with institutional and federal human subjects protections.

IPD 공유 지원 정보 유형

  • 연구_프로토콜
  • 수액

약물 및 장치 정보, 연구 문서

미국 FDA 규제 의약품 연구

아니

미국 FDA 규제 기기 제품 연구

아니

이 정보는 변경 없이 clinicaltrials.gov 웹사이트에서 직접 가져온 것입니다. 귀하의 연구 세부 정보를 변경, 제거 또는 업데이트하도록 요청하는 경우 register@clinicaltrials.gov. 문의하십시오. 변경 사항이 clinicaltrials.gov에 구현되는 즉시 저희 웹사이트에도 자동으로 업데이트됩니다. .

척수 손상에 대한 임상 시험

fermented foods에 대한 임상 시험

유사한 임상시험 검색

스폰서 및 공동 작업자

건강 상태

약물 개입

CROs by country

CROs in Gambia

정황

희귀 질병

약물 개입

식이 보충제

스폰서 / 협력자

위치

구독하다