Plant-Powered hope: diet may slow prostate cancer
NCT ID NCT07220499
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looked at whether eating a whole food plant-based diet for six months can help men with prostate cancer whose PSA levels are rising. Eleven men attended cooking classes and ate mostly plants. Researchers measured changes in PSA, cholesterol, blood sugar, and inflammation. The goal was to see if diet could improve cancer outcomes and reduce treatment risks.
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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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11 people
The number who actually took part.
- Started
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Nov 2023
- Finished
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Sep 2025
- 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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45 to 99 years
- Sex
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Male participants only
- 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: * Males 45-99 years of age * Histologically or cytologically confirmed adenocarcinoma of the prostate * Increasing PSA on at least 2 sequential tests not more than 6 months apart. * Eastern Cooperative Oncology Group Performance Status Scale of 0 to 2 * Adequate organ and marrow function, based upon meeting all of the following laboratory criteria: * White blood cell count ≥ 2500/mm3 (≥ 2.5 GI/L) * Platelets ≥ 50,000/mm3 (≥ 100 GI/L) without transfusion * Hemoglobin ≥ 9 g/dL (≥ 90 g/L) * Alanine aminotransferase (ALT), aspartate aminotransferase (AST), total bilirubin ≤ 2x upper limit of normal (or for subjects with Gilbert's syndrome direct bilirubin WNL) Serum albumin ≥ 2.8 g/dl * Willingness and ability to comply with all study-related procedures * Capable of understanding and complying with the protocol requirements and must have signed the informed consent document Exclusion Criteria: * Nut or legume allergy * Currently consuming a vegetarian or vegan diet * Concurrent participation in other nutrition or weight loss programs * Expected changes in exercise patterns during the study period * Active prostatitis * Insulin-dependent or requiring diabetes mellitus * Expected changes in chronic medications, including statins or oral diabetes medication during the study period (including a change in medication dosage) * Expected radiation, chemotherapy, bone resorptive agents or anti-androgen within 2 months of beginning the diet intervention * Known history of electrolyte imbalance or micronutrient deficiency, e.g., magnesium, cobalamin * Ongoing use of warfarin anticoagulants * Diagnosed, active inflammatory bowel disease * Alcohol and/or drug abuse * Psychiatric illnesses or social situations that would limit compliance with study requirements including the inability or lack of equipment to perform basic cooking tasks
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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.
Contacts and locations
Locations
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Pacific Cancer Care
Monterey, California, 93940, United States
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Other studies related to the condition(s) this trial covers.
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