We're building a better ClinicalTrials.gov. Check it out and tell us what you think!
Try the New Site
We're building a modernized ClinicalTrials.gov! Visit Beta.ClinicalTrials.gov to try the new functionality.
ClinicalTrials.gov Menu

Nutrition and Lifestyle Changes in Patients With Previously Untreated Stage I or Stage II Prostate Cancer

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
ClinicalTrials.gov Identifier: NCT00739791
Recruitment Status : Completed
First Posted : August 22, 2008
Last Update Posted : September 14, 2012
National Cancer Institute (NCI)
Information provided by:
University of California, San Francisco

Brief Summary:

RATIONALE: Learning about changes in DNA over time in patients with prostate cancer undergoing diet and lifestyle changes may help doctors learn about the long-term effects of these changes on disease progression.

PURPOSE: This clinical trial is studying nutrition and lifestyle changes in patients with previously untreated stage I or stage II prostate cancer.

Condition or disease Intervention/treatment Phase
Prostate Cancer Behavioral: exercise intervention Genetic: gene expression analysis Genetic: polymerase chain reaction Genetic: proteomic profiling Genetic: reverse transcriptase-polymerase chain reaction Other: laboratory biomarker analysis Other: medical chart review Other: questionnaire administration Procedure: psychosocial assessment and care Procedure: quality-of-life assessment Procedure: support group therapy Procedure: therapeutic dietary intervention Not Applicable

Detailed Description:


  • To measure changes in gene expression in prostate tissue core biopsy samples before and after a low-fat diet and lifestyle intervention in patients with previously untreated stage I or II adenocarcinoma of the prostate.
  • To collect health information from these patients to enable better understanding of the long term impact of diet and lifestyle changes on prostate cancer progression.


  • Intervention phase: Patients are placed on a comprehensive lifestyle change program comprising a low-fat vegan diet, stress management, moderate aerobic exercise, and regular participation in a support group for 3 months.
  • Follow-up phase: Patients undergo core tissue biopsies at baseline and at 3 months for genomic and gene expression analysis. Insulin-like growth factor 1 (IGF-1) and selenium-binding protein 1 levels are measured by quantitative reverse transcription-polymerase chain reaction (PCR). Patients also undergo blood sample collection periodically for biomarker analysis, proteomic analysis, and for telomere length and telomerase activity analysis as measured by quantitative PCR and telomerase repeat amplification protocol (TRAP). Blood and urine samples are also collected and stored for future analysis.

Patients complete questionnaires at baseline, at 3 months, and then every 6-12 months for up to 3 years to assess dietary and lifestyle behaviors (exercise, stress management practice, and group support), quality of life, and psychological adjustment. Questionnaires include the Semi-Quantitative Food Frequency Questionnaire; the SF-36 Health Survey; the UCLA Prostate Cancer Index; the Impact of Event Scale; the Memorial Anxiety Scale for Prostate Cancer; the Post Traumatic Growth Inventory; the Mindful Attention Awareness Scale; and the Received Social Support subscale from the Berlin Social Support Scale.

Patients' medical records are reviewed every 6-12 months for up to 3 years to collect information on clinical events and biomarkers (e.g., prostate-specific antigen and Gleason score).

Layout table for study information
Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 34 participants
Primary Purpose: Treatment
Official Title: Pilot Trial of Gene Expression Modulation by Intervention With Nutrition and Lifestyle
Study Start Date : September 2003
Actual Primary Completion Date : June 2005
Actual Study Completion Date : June 2005

Resource links provided by the National Library of Medicine

Primary Outcome Measures :
  1. Changes in gene expression in prostate tissue core biopsy samples as measured before and after a low-fat diet and lifestyle intervention

Secondary Outcome Measures :
  1. Correlation of quality of life changes and adherence to dietary and lifestyle changes with gene expression outcomes
  2. Telomere length and telomerase activity in blood samples in response to the dietary and lifestyle intervention as measured by quantitative polymerase chain reaction and telomerase repeat amplification protocol (TRAP)

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

Layout table for eligibility information
Ages Eligible for Study:   Child, Adult, Older Adult
Sexes Eligible for Study:   Male
Accepts Healthy Volunteers:   No


  • Histologically confirmed adenocarcinoma (small cell acinar type) of the prostate

    • Has undergone an extended pattern biopsy (defined as 8+ cores) within the past 2 years OR is scheduled to undergo an extended pattern clinical biopsy within 6 weeks of starting study intervention and is willing to undergo 4 additional research core biopsies
    • No more than 33% of biopsy cores positive (> 33% of biopsy cores positive allowed if due to microfoci of adenocarcinoma)
    • No more than 50% of the length of a tumor core involved by carcinoma
  • Clinical stage T1 or T2a disease
  • Previously untreated disease
  • Gleason score ≤ 6 with no pattern 4 or 5 histology (Gleason pattern 4 seen as a microfocus [< 2 mm in length] allowed)
  • Prostate-specific antigen (PSA) ≤ 10.0 ng/mL (PSA < 15 ng/mL allowed for patients with benign prostatic hyperplasia or prostatitis)

    • Must have had 3 serum PSA levels performed ≥ 2 weeks apart over the past year to allow calculation of a PSA doubling time

      • No PSA doubling time of < 3 months
  • Has chosen watchful waiting as treatment


  • ECOG performance status 0-2
  • Life expectancy > 3 months
  • Living in the greater San Francisco Bay Area
  • Willing to make comprehensive lifestyle changes
  • Baseline dietary fat intake ≥ 15%
  • Able to participate in the exercise portion of this study, as determined by the cardiologist or primary care physician
  • No limited exercise tolerance precluding participation in the lifestyle intervention component of this study
  • No comprehensive lifestyle change similar to the lifestyle intervention used in this study
  • No concurrent uncontrolled illness including, but not limited to, any of the following:

    • Ongoing or active infection
    • Symptomatic congestive heart failure
    • Unstable angina pectoris
    • Coronary artery disease requiring a revascularization procedure
    • Cardiac arrhythmia
    • Psychiatric illness/social situation that would limit compliance with study requirements


  • No prior or other concurrent treatment for prostate cancer, including any of the following:

    • Surgery
    • Radiotherapy
    • Hormonal therapy (e.g., leuprolide acetate, bicalutamide, flutamide, goserelin, megestrol acetate, nilutamide, or DES/estrogen)
    • Chemotherapy
    • PC-SPES
    • Investigational agents
  • More than 4 weeks since prior and no concurrent finasteride or dutasteride
  • More than 4 weeks since prior and no concurrent saw palmetto or any other herbal/nutritional preparation that would affect hormone levels
  • More than 4 weeks since prior multivitamin/mineral and/or supplemental soy protein, vitamin E, vitamin C, selenium, fish oil, or any other preparation intended to supplement levels of omega-3 unsaturated fatty acids
  • More than 1 month since prior and no concurrent NSAIDs, COX-2-inhibitors, and/or aspirin used for > 7 consecutive days

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00739791

Sponsors and Collaborators
University of California, San Francisco
National Cancer Institute (NCI)
Layout table for investigator information
Principal Investigator: Peter R. Carroll, MD University of California, San Francisco
Publications of Results:
Layout table for additonal information
Responsible Party: Peter R. Carroll, UCSF Helen Diller Family Comprehensive Cancer Center
ClinicalTrials.gov Identifier: NCT00739791    
Other Study ID Numbers: CDR0000612335
UCSF CC#04553
First Posted: August 22, 2008    Key Record Dates
Last Update Posted: September 14, 2012
Last Verified: September 2012
Keywords provided by University of California, San Francisco:
adenocarcinoma of the prostate
stage I prostate cancer
stage IIB prostate cancer
stage IIA prostate cancer
Additional relevant MeSH terms:
Layout table for MeSH terms
Prostatic Neoplasms
Genital Neoplasms, Male
Urogenital Neoplasms
Neoplasms by Site
Genital Diseases, Male
Genital Diseases
Urogenital Diseases
Prostatic Diseases
Male Urogenital Diseases