T-reg Function Changes: a Novel Immune Regulatory Effect Underlying Benefit of Statin Use on Lethal Prostate Cancer
1 other identifier
interventional
36
1 country
2
Brief Summary
This study will evaluate whether simvastatin reduces intraprostatic immunosuppressive microenvironment through YAP-mediated T-reg dysfunction, and increases intraprostatic anti-tumor immune response in men recently diagnosed with localized prostate cancer electing to receive prostatectomy for their care. Half the men will be randomized to receive statins for 8 weeks prior to their surgery, while the other half will receive standard of care.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for phase_2 prostate-cancer
Started Mar 2024
2 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
October 13, 2022
CompletedFirst Posted
Study publicly available on registry
October 19, 2022
CompletedStudy Start
First participant enrolled
March 11, 2024
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 1, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
August 1, 2027
March 4, 2026
March 1, 2026
3 years
October 13, 2022
March 2, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Intra-prostatic YAP-mediated T-reg dysfunction in total tissue area
Number of men diagnosed with localized prostate cancer randomized to receive a statin prior to prostatectomy that have greater intra-prostatic YAP-mediated T-reg dysfunction compared to men randomized to the control group. Intra-prostatic T-reg dysfunction will be determined by the proportion of Foxp3+ T-regs with phosphorylated YAP sequestered in the cytoplasm detected by multiplex immunofluorescence and digital quantitative image analysis.
8 weeks
Secondary Outcomes (3)
Intra-prostatic YAP-mediated T-reg dysfunction, limited to tumor infiltrating Tregs
8 weeks
Intra-prostatic YAP-mediated T-reg dysfunction, limited to T-regs in adjacent normal and stromal tissue
8 weeks
Intra-prostatic anti-tumor immune response
8 weeks
Study Arms (2)
Simvastatin
EXPERIMENTALPatients randomized to the statin group will receive 40 mg oral simvastatin QD for eight weeks prior to prostatectomy, including the day of surgery.
Control
NO INTERVENTIONPatients randomized to the control group receive no intervention prior to prostatectomy.
Interventions
Eligibility Criteria
You may qualify if:
- Men with pathologically-confirmed localized prostate cancer determined to be intermediate (stage T2b, or Gleason 7, or PSA 10-20 ng/mL) or high risk (stage T2c, or PSA \>/=20 ng/mL, or Gleason \>/=8) of biochemical recurrence at the time of biopsy
- Electing to undergo prostatectomy;
- Ability to provide written informed consent and willing to complete study procedures.
You may not qualify if:
- Current statin use or use of non-statin lipid-lowering drug (fibrates, bile acid sequestrants, or niacin);
- Current use of medications contraindicated for concomitant use with 40mg simvastatin:
- Gemfibrozil
- Cyclosporine
- Danazol
- CYP3A4 inhibitors: itraconazole; ketoconazole; posaconazole; erythromycin; clarithromycin; telithromycin; HIV protease inhibitors; boceprevir; telaprevir; nefazodone
- Verapamil
- Diltiazem
- Amiodarone
- Ranolazine
- Calcium channel blockers: verapamil; diltiazem; amlodipine
- Men with low-density lipoprotein cholesterol \<50mg/dL
- Statin use in the previous 12 months;
- Discontinued statin use because of statin-related adverse event;
- Evidence or suspicion of metastases;
- +7 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (2)
Emory University
Atlanta, Georgia, 30322, United States
Hollings Cancer Center at Medical University of South Carolina
Charleston, South Carolina, 29425, United States
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Michael Marrone, PhD
Public Health Sciences
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Associate Professor
Study Record Dates
First Submitted
October 13, 2022
First Posted
October 19, 2022
Study Start
March 11, 2024
Primary Completion (Estimated)
March 1, 2027
Study Completion (Estimated)
August 1, 2027
Last Updated
March 4, 2026
Record last verified: 2026-03