A Cruciferous Vegetable Eating Program for the Reduction of Cancer Recurrence and Progression in Patients With Non-muscle Invasive Bladder Cancer

Phase 2

Not yet recruiting

• Conditions: Non-Muscle Invasive Bladder Carcinoma; Recurrent Bladder Carcinoma; Recurrent Non-Muscle Invasive Bladder Carcinoma; Stage 0a Bladder Cancer AJCC v8; Stage 1 Bladder Cancer AJCC v8

• Registration Number: NCT06733363
• Lead Sponsor: Roswell Park Cancer Institute

Brief Summary

This phase II trial is being done to develop and test a healthy eating program to reduce cancer recurrence (cancer that has come back after a period of improvement) and/or progression (cancer that is growing, spreading, or getting worse) in patients with non-muscle invasive bladder cancer (NMIBC). Researchers want to better understand how incorporating more cruciferous vegetables in the diet may reduce the risk of cancer recurrence or progression in men and women who were diagnosed with early-stage bladder cancer and compare whether extending the program can further improve bladder cancer outcomes. POW-R Health is a behavioral dietary intervention designed to modestly increase cruciferous vegetable (cruciferae) intake in patients. Cruciferous vegetables, such as cabbage, kale and broccoli, arugula, contain phytochemicals known as isothiocyanates (ITCs). Dietary ITCs exert potent anticancer activities against bladder cancer and can be rapidly metabolized, delivered to the bladder, and concentrated in the urine. Participating in the healthy eating program may reduce bladder cancer recurrence or progression in NMIBC survivors.

Detailed Description

PRIMARY OBJECTIVES:

I. Develop a maintenance component to add onto our POW-R Health intervention (POW-R Health Only/Core) to create POW-R Health + Maintenance.

II. Assess the efficacy of POW-R Health + Maintenance compared to POW-R Health Only/Core using a 2-group randomized controlled trial (RCT) design in 344 participants on the primary outcome of urinary ITC.

SECONDARY OBJECTIVE:

I. Assess the efficacy of POW-R Health + Maintenance compared to POW-R Health Only/Core on the secondary outcome of cruciferae intake.

Study Timeline

• Study First Submitted: 2024-12-10
• Study First Submitted QC: 2024-12-10
• Study First Posted: 2024-12-13
• Status Verified: 2025-04
• Last Update Submitted: 2025-04-10
• Last Update Posted: 2025-04-15
• Study Start: 2025-04-30
• Primary Completion: 2027-04-01
• Study Completion: 2027-04-01

Recruitment & Eligibility

• Status: NOT_YET_RECRUITING
• Sex: All
• Target Recruitment: 344

Inclusion Criteria

• English speaking

  • Diagnosed with stage Tis, Ta, or T1 bladder cancer
  • Age 18 years old or older (no upper limit)
  • Resides in New York State
  • Cancer not reported by a lab, nursing home, or death certificate/autopsy only
  • Did not receive a partial or radical cystectomy
  • Does not have other cancer diagnosis within 12 month of bladder cancer diagnosis nor under active treatment for any other cancers

Exclusion Criteria

• Participants who had chemotherapy or radiotherapy within 4 weeks (6 weeks for nitrosoureas or mitomycin C) prior to entering the study or those who have not recovered from adverse events due to agents administered more than 4 weeks earlier

  • Adults unable to consent

  • Adults unable to complete study measures in English

  • Individuals who are not yet adults (infants, children, teenagers)

  • Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements

  • Unwilling or unable to follow protocol requirements

  • The following special populations ae excluded from this study:

    • Cognitively impaired adults/adults with impaired decision-making capacity
    • Individuals who are not yet adults (infants, children, teenagers)
    • Pregnant women
    • Prisoners

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Primary Outcome Measures

Name	Time	Method
Urinary isothiocyanates (ITCs) levels	Baseline throughout life of study - up to 24 months	Levels with be measured using high performance liquid chromatography-based cyclocondensation assay

Secondary Outcome Measures

Name	Time	Method
Increase in Cruciferae Intake	up to 24 months	Increase in Cruciferae Intake

Trial Locations

Locations (1)

Roswell Park Comprehensive Cancer Center; 🇺🇸 Buffalo, New York, United States