Beetroot juice may speed gut recovery after surgery
NCT ID NCT05133024
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether drinking beetroot juice for a week before colorectal surgery can help the gut start working again sooner. About 170 adults will be randomly assigned to drink either real beetroot juice or a placebo. Researchers will track when patients can eat solid food and pass gas or stool, and will also study blood and tissue samples to understand how beetroot juice affects inflammation.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
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About 170 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Mar 2021
- Expected to finish
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Dec 2027
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Adult patients undergoing elective colonic and upper rectum laparoscopic surgery requiring an anastomosis, without the need of conversion Exclusion Criteria: General: * \< 18 years of age * Pregnancy or breast feeding Medical: * Psychiatric pathology capable of affecting comprehension and judgment faculty * History of inflammatory bowel disease * Chronic vascular disease affecting the intestines * Chronic constipation (\<= 2 bowel movements/week) * Previous abdominal or pelvic radiation treatment * Recent (\< 3 months before inclusion) or current intra-abdominal infection or inflammation (e.g. diverticulitis, appendicitis, cholecystitis) * Use of gut motility influencing agents (e.g. tricyclic antidepressants, chronic use of laxatives) * Use of nitrates (e.g. isosorbide dinitrate, nitroglycerin), including daily consumption of beetroot juice (unless stopped for a month prior to the intervention period) * Hypotension (\< 100/60 mmHg) * Uncontrolled diabetes mellitus * Renal or hepatic insufficiency * Known allergies or intolerances to beetroot, nitrates/nitrites * Enrollment in other clinical trials/experiments, unless approved by the Ethics Committee(s) Surgical: * History of prior colorectal surgery * Emergency surgery * Open surgery * Colorectal surgery not requiring an anastomosis (e.g. colotomy, wedge resection) * More than 1 bowel anastomosis planned * Concomitant surgical procedures required (e.g. resection of liver or lung metastases) * Protective stoma planned
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
5 sites. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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AZ Sint-Lucas Ghent
RECRUITINGGhent, 9000, Belgium
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Antwerp University Hospital
RECRUITINGEdegem, 2650, Belgium
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Ghent University Hospital
RECRUITINGGhent, 9000, Belgium
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Hospital East-Limburg
ACTIVE_NOT_RECRUITINGGenk, 3600, Belgium
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University Hospital Leuven
RECRUITINGLeuven, 3000, Belgium
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VITAZ
RECRUITINGSint-Niklaas, 9100, Belgium
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- New pain combo aims to get bowels moving faster after surgery
- Could a common gut drug help you heal faster after surgery?