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Red meat swap may cut toxins in kidney patients

NCT ID NCT07105670

Knowledge-focused Sponsor: Indiana University Source: ClinicalTrials.gov ↗

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Aug 12, 2026 · Updated 2 times

Summary

This study looks at whether replacing red meat with plant-based protein can lower levels of certain gut toxins in people with stage 3 chronic kidney disease. Fifteen participants will try both a vegetarian diet and a diet with red meat, with a break in between. Researchers will measure toxins in blood and urine to see if diet makes a difference.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
controlled dietary intervention (lacto-ovo vegetarian diet vs. red meat diet)
What this could lead to
If successful, this could point toward dietary recommendations to reduce harmful gut toxins in people with chronic kidney disease.
What could go wrong
This is a very small early-stage study with only 15 participants, so results may not apply to everyone. It is designed to gather knowledge, not to test a treatment.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 15 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

Sep 2026

An estimate. Start dates often move.

Expected to finish

Jun 2027

An estimate. End dates often move.

Lead sponsor

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

40 to 70 years

Sex

Anyone

Healthy volunteers

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

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Age 40-70 years * Male or postmenopausal female * Stage 3 CKD (eGFR between 30-59ml/min/1.73m\^2 by the CKD-EPI equation (without race correction)). * If eGFR is greater than or equal to 45ml/min/1.73m\^2 then albuminuria must be greater than 300mg/g creatinine by spot urine. * Willing to consume controlled diet for duration of the study * Willing to collect fecal samples at home Exclusion Criteria: * Hemoglobin A1c greater than 7% within previous six months * Treatment with metformin or insulin within previous three months * Blood pressure greater than 150/100 mmHg from chart of home on at least two occasions in prior month (can be inclusive of screening visit) * Change in cardiovascular and/or hypertension medication in the last 30 days * History of major gastrointestinal disease (e.g. inflammatory bowel disease, uncontrolled irritable bowel syndrome, C. difficile chronic infection, celiac disease, diverticulitis, stomach or duodenal ulcers) * Known HIV disease * Hospitalization in the last two months * Significant recent unintentional weight loss (5% of weight over past three months) * Cancer or received cancer treatment in the last year (except basal cell carcinoma) * Prior bariatric surgery (i.e. gastric bypass, sleeve gastrectomy) or restrictive bariatric surgery (i.e. adjustable gastric band) * Treatment with immunosuppressive medications in the past six months or more than one week of treatment with prednisone greater than 10mg per day in the past three months (or equivalent steroid dose of non-prednisone steroids) * Recent antibiotic use defined as a single course of antibiotics within the past three months or two or more courses within the past six months * Known food allergy that would influence the ability to consume the study diets * History of hyperkalemia defined as greater than 5.5mmol/L on at least two occasions * Other medical conditions or concerns at the discretion of the investigators

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Conditions

The condition(s) this trial relates to.

chronic kidney disease chronic renal failure syndrome

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Chronic kidney disease stage 3

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. 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

  • Purdue University

    RECRUITING

    West Lafayette, Indiana, 47906, United States

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