Dietary intervention aims to slow kidney cyst progression
NCT ID NCT06786260
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether a 12-month diet low in salt, caffeine, protein, and carbs, but high in potassium and water, can slow kidney cyst growth in 30 adults with ADPKD. Participants are split into diet and regular diet groups. The goal is to see if the diet reduces cyst progression and improves kidney health markers.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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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
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About 30 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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May 2026
An estimate. Start dates often move.
- Expected to finish
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Apr 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 to 65 years
- 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.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Confirmed diagnosis of ADPKD * Genetic testing confirmation of PKD1 or PKD2 * eGFR \>30mL/1.73m2 * Willingness to adhere to a preconditioning diet for 1 week and ability to complete the study * Mayo Clinic Imaging Classification (MCIC): 1C, 1D, 1E Exclusion Criteria: * History of dietary non-adherence * Subjects on Tolvaptan * Comorbidities that could interfere with participation (Diabetes, Heart Failure (EF\<30%) Advanced Chronic Kidney Disease (CKD) Stage 4 and higher)
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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
1 site. 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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Loma Linda University Health
Loma Linda, California, 92354, United States
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