for males ages 18 years and up (full criteria)
at San Francisco, California
study started
estimated completion
Principal Investigator
Stacey Kenfield, DSc



The Prostate 8-II study is a 2-year randomized controlled trial of testing different combinations of educational and supportive tools related to diet and exercise to evaluate biological, clinical, and quality of life outcomes in men choosing radical prostatectomy as treatment for prostate cancer.

Official Title

A Randomized Controlled Trial of Diet & Exercise Interventions Among Men With Prostate Cancer - II (Prostate 8-II)


This is a PI initiated, randomized controlled trial of four exercise and diet interventions among 200 men opting for radical prostatectomy for prostate cancer. The Prostate 8-II study enrolls men up to 8 weeks prior to surgery and participants remain on study for 24 cycles after surgery (1 cycle=28 days). After obtaining written informed consent, enrolled subjects will be scheduled for the baseline assessments. All participants will receive Group A educational materials and tools, but these will be distributed at different times based on group assignment. The other 3 groups will receive different combinations of exercise (Group B), diet (Group C) and exercise and diet (Group D) tools. Men in all arms will be asked to complete questionnaires at baseline, pre-surgery, and at cycles 6 12 & 24 post-surgery, and complete blood and urine collection, diet recall, and accelerometer measurement at select time points. Specimens from biopsy and radical prostatectomy will be reviewed by the investigators' collaborator, GenomeDx, for RNA characterization and assessment of the genomic risk scores.


Prostate Cancer Exercise Diet Lifestyle Digital Text messaging Coach Prostatic Neoplasms Exercise and Diet


You can join if…

Open to males ages 18 years and up

  1. Age ≥18 years
  2. Diagnosed with non-metastatic prostate cancer and choose radical prostatectomy (RP) as primary treatment. Cannot have adjuvant radiation or hormone therapy planned prior to surgery at time of enrollment.
  3. Cleared by their physician to participate in unsupervised physical activity, if patient has certain health conditions or symptoms, outlined in

You CAN'T join if...

  1. Able to speak and read English
  2. Regular access to the Internet (via a computer, tablet, or phone) and text messaging capabilities on the phone
  3. Ability to understand a written informed consent document, and the willingness to sign it

Exclusion Criteria:

  1. Men who have contraindications to exercise based the American College of Sports Medicine 2016 Exercise pre-participation screening criteria (, and who do not receive a physician clearance to participate in the moderate to vigorous intensity physical activity with one or more of the following self-reported conditions:
  2. Heart attack
  3. Heart surgery, cardiac catheterization, or coronary angioplasty
  4. Pacemaker/implantable cardiac defibrillator/rhythm disturbance
  5. Heart valve disease
  6. Heart failure
  7. Heart transplantation
  8. Congenital heart disease
  9. Diabetes
  10. Kidney (renal) disease
  11. . Chest discomfort with exertion
  12. . Unreasonable breathlessness
  13. . Dizziness, fainting, or blackouts
  14. . Ankle swelling
  15. . Unpleasant awareness of forceful, rapid or irregular heart rate
  16. . Burning or cramping sensations in your lower legs when walking short distance
  17. Men who are already meeting both aerobic AND resistance exercise recommendations.

Aerobic: doing 150 minutes per week of planned moderate aerobic exercise or 75 minutes per week of planned vigorous aerobic exercise or combination; Resistance: doing 2 or more days AND 8 or more exercises per session, using duration of resistance exercise per week to confirm reported exercise

  1. Men who are already meeting all of the 7 prostate-specific dietary recommendations


  • University of California, San Francisco (UCSF) accepting new patients
    San Francisco California 94143 United States

Lead Scientist at UCSF

  • Stacey Kenfield, DSc
    Associate Professor, Urology. Authored (or co-authored) 74 research publications.


accepting new patients
Start Date
Completion Date
University of California, San Francisco
Study Type
Last Updated