A Pilot Study to Investigate the Effect of Water-soluble Tomato Extract on TMAO
A Randomised, Double-blinded, Cross-over, Placebo- Controlled Pilot Study to Investigate the Effect of Tomato Extract on TMAO in Overweight or Obese Adults
1 other identifier
interventional
37
1 country
1
Brief Summary
To determine the effect of 4 weeks daily consumption of Fruitflow on changes in plasma levels of fasting Trimethylamine N-oxide concentrations (TMAO)
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for not_applicable
Started Nov 2019
Shorter than P25 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
November 8, 2019
CompletedStudy Start
First participant enrolled
November 12, 2019
CompletedFirst Posted
Study publicly available on registry
November 13, 2019
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 13, 2020
CompletedStudy Completion
Last participant's last visit for all outcomes
March 13, 2020
CompletedMarch 26, 2020
March 1, 2020
4 months
November 8, 2019
March 25, 2020
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Change in TMAO concentrations
Changes in plasma levels of fasting Trimethylamine N-oxide concentrations (TMAO) at baseline.
4 weeks
Secondary Outcomes (6)
Changes in the relative abundance of common human gut microbes in stool samples
4 weeks
Urinary TMAO
4 weeks
LPS
4 weeks
Stool consistency
4 weeks
Stool microbiota composition alpha diversity
4 weeks
- +1 more secondary outcomes
Study Arms (2)
Tomato extract
ACTIVE COMPARATORPlacebo
PLACEBO COMPARATORInterventions
Eligibility Criteria
You may qualify if:
- Be able to give written informed consent;
- Be between 35 and 65 years of age;
- Has a BMI between 28 - 35 Kg/m2;
- Has a stable body weight (≤5% change) over the past 3-months;
- Is in general good health, as determined by the investigator;
- Avoid consuming dietary supplements (prebiotic, probiotic, fibre, resveratrol, fish oil, seed oils, ginkgo biloba, ginseng, fruit powder extracts and DHA) within 4 weeks prior to baseline visit, until the end of the study;
- Avoid consuming seafood or fish 24h prior to each visit;
- Maintain current level of physical activity;
- Willing to consume the investigational product daily for the duration of the study.
You may not qualify if:
- Pregnant or breastfeeding women; women planning to become pregnant during the study;
- Are hypersensitive to any of the components of the test product;
- Has taken antibiotics within the previous 3 months;
- Has taken hypolipidemic agents or any treatment for diabetes (type I or II) within the previous 6 months;
- Has a history of drug and/or alcohol abuse at the time of enrolment;
- Consumes greater than 2 servings/day of alcohol (e.g. \>28 g ethanol/day);
- Is a smoker;
- Has made any major dietary changes in the past 3 months;
- Planned major changes in life style (i.e. diet, dieting, exercise level, travelling) during the duration of the study;
- Has an eating disorder;
- Is vegetarian/vegan diet or has food allergies or other issues with foods that would preclude intake of the study products;
- Is using fibre supplements or enemas;
- Has any health conditions that would prevent from fulfilling the study requirements, put the subject at risk or would confound the interpretation of the study results as judged by the investigator on the basis of medical history and routine laboratory test results;
- Have a significant acute or chronic coexisting illness such as cardiovascular disease, chronic kidney or liver disease, gastrointestinal disorder, endocrinological disorder, immunological disorder, metabolic disease or any condition which contraindicates, in the investigator's judgement, entry to the study;
- Current hepatic failure, renal failure, bleeding disorder (haemophilia, Von Willebrand disease, oesophageal varicoses);
- +12 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Atlantia Food Clinical Trials
Cork, Ireland
Related Publications (6)
Miller CA, Corbin KD, da Costa KA, Zhang S, Zhao X, Galanko JA, Blevins T, Bennett BJ, O'Connor A, Zeisel SH. Effect of egg ingestion on trimethylamine-N-oxide production in humans: a randomized, controlled, dose-response study. Am J Clin Nutr. 2014 Sep;100(3):778-86. doi: 10.3945/ajcn.114.087692. Epub 2014 Jun 18.
PMID: 24944063BACKGROUNDAnnunziata G, Maisto M, Schisano C, Ciampaglia R, Narciso V, Tenore GC, Novellino E. Effects of Grape Pomace Polyphenolic Extract (Taurisolo(R)) in Reducing TMAO Serum Levels in Humans: Preliminary Results from a Randomized, Placebo-Controlled, Cross-Over Study. Nutrients. 2019 Jan 10;11(1):139. doi: 10.3390/nu11010139.
PMID: 30634687BACKGROUNDBergeron N, Williams PT, Lamendella R, Faghihnia N, Grube A, Li X, Wang Z, Knight R, Jansson JK, Hazen SL, Krauss RM. Diets high in resistant starch increase plasma levels of trimethylamine-N-oxide, a gut microbiome metabolite associated with CVD risk. Br J Nutr. 2016 Dec;116(12):2020-2029. doi: 10.1017/S0007114516004165. Epub 2016 Dec 20.
PMID: 27993177BACKGROUNDCassidy A, Minihane AM. The role of metabolism (and the microbiome) in defining the clinical efficacy of dietary flavonoids. Am J Clin Nutr. 2017 Jan;105(1):10-22. doi: 10.3945/ajcn.116.136051. Epub 2016 Nov 23.
PMID: 27881391BACKGROUNDCardona F, Andres-Lacueva C, Tulipani S, Tinahones FJ, Queipo-Ortuno MI. Benefits of polyphenols on gut microbiota and implications in human health. J Nutr Biochem. 2013 Aug;24(8):1415-22. doi: 10.1016/j.jnutbio.2013.05.001.
PMID: 23849454BACKGROUNDRehman A, Tyree SM, Fehlbaum S, DunnGalvin G, Panagos CG, Guy B, Patel S, Dinan TG, Duttaroy AK, Duss R, Steinert RE. A water-soluble tomato extract rich in secondary plant metabolites lowers trimethylamine-n-oxide and modulates gut microbiota: a randomized, double-blind, placebo-controlled cross-over study in overweight and obese adults. J Nutr. 2023 Jan;153(1):96-105. doi: 10.1016/j.tjnut.2022.11.009. Epub 2022 Dec 23.
PMID: 36913483DERIVED
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- TRIPLE
- Who Masked
- PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- BASIC SCIENCE
- Intervention Model
- CROSSOVER
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
November 8, 2019
First Posted
November 13, 2019
Study Start
November 12, 2019
Primary Completion
March 13, 2020
Study Completion
March 13, 2020
Last Updated
March 26, 2020
Record last verified: 2020-03
Data Sharing
- IPD Sharing
- Will not share