Clinical TrialID 1290

Walnuts and Colon Health

NCT05195970

Colorectal Cancer|Diet Habit

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Record Fields

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Clinical Trial Id
1290
Evidence Id
1290
Core Evidence Id
1290
Source Clinical Trial Id
1272
Herb2 Clinical Trial Id
HBCT001272
Nct Id
NCT05195970
Title
Walnuts and Colon Health
Status
Recruiting
Phase
Study Result
No
Study Condition
Colorectal Cancer|Diet Habit
Study Type
Interventional
Study Design
Allocation: NA|Intervention Model: SINGLE_GROUP|Masking: NONE|Primary Purpose: PREVENTION
Intervention
OTHER: Walnuts
Intervention Allocation
Intervention Model
Single_Group
Intervention Mask
Intervention Purpose
Prevention
Gender
All
Age
Adult, Older_Adult
Enrollment
200
Outcome Measure
Bacterial composition and taxonomy changes in the fecal microbiome, Bacterial composition and taxonomy changes in the fecal microbiome will be assessed using 16 Svedberg unit (16S) ribosomal ribonucleic acid (rRNA) sequencing, at day 7 (post-washout/pre-walnut supplementation) and at day 28 (post-walnut supplementation)., Day 7 and Day 28|Bacterial diversity changes and strain-level variations in the fecal microbiome, Bacterial diversity/abundance changes and strain-level variations in the fecal microbiome will be assessed using metagenomic shotgun sequencing at day 7 (post-washout/pre-walnut supplementation) and at day 28 (post-walnut supplementation)., Day 7 and Day 28|Bacterial gene expression profile changes in the fecal microbiome, Bacterial gene expression profile changes in the fecal microbiome will be assessed using metagenomic ribonucleic acid (RNA) sequencing at day 7 (post-washout/pre-walnut supplementation) and at day 28 (post-walnut supplementation)., Day 7 and Day 28|Urolithin levels in urine, Urolithin levels will be measured in urine by ultra-high performance liquid chromatography with quadrupole time-of-flight mass spectrometry at day 0 (baseline/pre-washout), day 7 (post-washout/pre-walnut supplementation) and day 29 (post-walnut supplementation/end of study)., Day 0, Day 7 and Day 29|Association of urolithin levels with presence (and type) of colonic lesions, Baseline urolithin levels measured in the urine by ultra-high performance liquid chromatography with quadrupole time-of-flight mass spectrometry will be associated with the presence (and type) of colonic lesions (e.g., advanced adenomas (AAs) or sessile serrated adenoma/polyps (SSA/Ps)) detected during the colonoscopy procedure at the end of the study (day 29)., Day 29|Correlation of urolithin levels with fecal microbiome composition, Detailed statistical analyses will be used to correlate urolithin formation with the composition of the fecal microbiome at day 7 (post-washout/pre-walnut supplementation) and at day 28 (post-walnut supplementation)., Day 7 and Day 28|Correlation of colonic lesion gene expression with urolithin production, Colonic lesion (AAs and SSA/Ps) biopsies obtained at the end of the study (day 29) during the colonoscopy procedure will undergo DNA sequence-based analysis to determine gene expression profiling. These results will be compared to urinary urolithin levels measured at baseline to establish correlations between urolithin production and colorectal cancer risk markers., Day 29
Sponsor Collaborator
UConn Health|National Institutes of Health (NIH)|National Cancer Institute (NCI)|Weill Medical College of Cornell University|University of Connecticut|California Walnut Commission|Spanish National Research Council|University of Florida
Funded By
OTHER
Location
UConn Health, Farmington, Connecticut, 06032, United States|Weill Cornell Medicine, New York, New York, 10065, United States
Other Id
21-167JS-1|1R01CA252045-01A1
Start Date
2022-01-24
Primary Completion Date
2025-12-31
Completion Date
2026-12-31
First Posted
2022-01-19
Results First Posted
Last Update Posted
2024-03-19
Study Document
Study Url
https://clinicaltrials.gov/study/NCT05195970
Title Cn
Title En
Walnuts and Colon Health
Bilingual Status
semi_complete