Cholesterol-Lowering Drugs and Immune Cells in Prostate Cancer

This study is looking at whether intensive cholesterol-lowering treatments, Vytorin (a combination of Ezetimibe and Simvastatin) or Ezetimibe alone, can affect the immune system in men with prostate cancer. Specifically, researchers want to see if these drugs change the number of CD8+ T lymphocytes (a type of immune cell that can fight cancer) in the prostate. You might be eligible if you are an adult man with prostate cancer who is on active surveillance and has at least one risk factor for heart disease, such as being over 50, having high blood pressure, or diabetes. The main goal is to measure the change in these immune cells after 3 to 6 months of taking the cholesterol-lowering medication.

Study design
This is an open-label, single-arm study, meaning all 140 participants will receive one of the study treatments, and everyone will know which treatment they are getting. It is a Phase II trial.
What's involved
Participants will take cholesterol-lowering medication for 3 to 6 months and will undergo a planned surveillance biopsy during this time.
Compensation
Not stated in the trial record.
Follow-up
The primary measurement of immune cells is taken after 3 to 6 months of cholesterol-lowering intervention.

AI-generated from the public study record. Only the study team can confirm whether you're eligible — confirm details with them before making decisions.

NCT06437574

Intensive Cholesterol-Lowering and CD8+ T Cells in Prostate Cancer

Recruiting
PHASE2Ages 18+InterventionalPrevention
Cedars-Sinai Medical Center
~140 participants
Updated 2026-03-11 on ClinicalTrials.gov
What's tested:VytorinEzetimibe

At a glance

Recruiting sites
1 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Pre/Post-change in percent prostate infiltrating CD8+ T lymphocytes.
Measured over 3 to 6 months of cholesterol-lowering intervention
Prostate Cancer
1 sites across 1 states
California1
  • Hyung Kim, MD · PRINCIPAL_INVESTIGATOR · Cedars-Sinai Medical Center

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  • Pre/Post-change in percent prostate infiltrating CD8+ T lymphocytes.3 to 6 months of cholesterol-lowering intervention

    Our primary hypothesis is that maximum cholesterol lowering will increase CD8+ memory T cells and increase CD8+ T cell infiltration into prostate tissue. Change in CD8+ T cells in the prostate from baseline to 3 to 6 months is the primary endpoint.