ClinicalTrials.gg
RecruitingNCT06733363Updated Sep 17, 2026

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

A Phase 2 interventional study of Behavioral Dietary Intervention and Telephone- Based Intervention in Non-Muscle Invasive Bladder Carcinoma, Recurrent Bladder Carcinoma and Recurrent Non-Muscle Invasive Bladder Carcinoma, sponsored by Roswell Park Cancer Institute. Recruiting at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-09-17.

Sponsored by Roswell Park Cancer Institute · Phase 2, Interventional, and Prevention

From the registry’s dates

  • Started Jan 2026; still recruiting 10 months later.

Help build ClinicalTrials.gg — short surveys, remote interviews or testing, in your language. Take part →

Phase
Phase 2
Study type
Interventional
Enrollment
344
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-13

Among 114 studies in Non-Muscle Invasive Bladder Neoplasms with a site in United States — 39 open to participants now, 59 under way, 15 of them phase 3. Non-Muscle Invasive Bladder Neoplasms · United States.

Planned enrollment
9th of 93
344 · median 55
Started
2026
with 8 others
Phase 2
20 of 114
8 open now
Primary completion
2028-01
later than 28 of 58 live
Registered
93rd of 114
by date

Among the 114 studies in Non-Muscle Invasive Bladder Neoplasms with a site in United States, this one is the 9th largest by planned enrollment of the 93 interventional ones that give a count, is one of 9 that started in 2026, is one of 20 in phase 2, reaches primary completion later than 28 of the 58 other live ones, and was the 93rd registered.

Non-Muscle Invasive Bladder Neoplasms

294 studies on the registry are indexed under Non-Muscle Invasive Bladder Neoplasms; 126 are open to participants now.

Browse Non-Muscle Invasive Bladder Neoplasms studies →

Open to participants now

39 of the 114 studies in Non-Muscle Invasive Bladder Neoplasms with a site in United States are open now. Recruiting first, the newest first:

33 more — sign in →

All 39 open studies →

A study can be open while its sites in United States have not opened yet or have stopped. Only those recruiting at a site in United States →

Who these studies take

Of the 92 Non-Muscle Invasive Bladder Neoplasms studies recruiting now, 77 (84%) set no upper age limit and 5 (5%) stop at 75 or younger; 2 take children under 18; 2 take healthy volunteers.

This study: 18 Years and older · all sexes · no healthy volunteers.

The full table on the hub →

This tab as a report to print or save as PDF → With an account.

Was this useful?
Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 114 studies in Non-Muscle Invasive Bladder Neoplasms with a site in United States, or all of them as a file.
02

Study 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.

Read the 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.

03

Conditions studied

  • 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
04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

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 except for cancers deemed low risk and unlikely to impact study participation (e.g., basal cell carcinoma, nor under active treatment for any other cancers

Exclusion criteria

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
05

Study design

Phase
Phase 2
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Outcomes assessor)
Enrollment
344 participants (estimated)

Study arms

  • Experimental
    Adaptation

    CAB members participate in maintenance phase development discussion over an hour up to 3 times per week.

    Behavioral: Behavioral Dietary Intervention

  • Experimental
    Arm II - POW-R Health Only/Core + Maintenance

    Patients receive study materials and phone calls during life of study

    Behavioral: Telephone- Based Intervention

Interventions

  • BehavioralBehavioral Dietary Intervention

    Participate in POW-R Health Only/Core program

  • BehavioralTelephone- Based Intervention

    Receive live phone calls

06

What researchers measure

Primary outcomes

  1. Urinary isothiocyanates (ITCs) levels

    Levels with be measured using high performance liquid chromatography-based cyclocondensation assay

    Time frame: Baseline throughout life of study - up to 24 months

Secondary outcomes

  1. Increase in Cruciferae Intake

    Increase in Cruciferae Intake

    Time frame: up to 24 months

07

Study locations

1 of 1 sites recruiting
08

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Started Jan 2026 (actual). Primary completion is estimated for Jan 2028, 24 months after the start.

How these figures are worked out, and which studies are left out of them.

Registered
Dec 10, 2024
First posted
Dec 13, 2024
StartActual
Jan 13, 2026
Primary completionEst.
Jan 13, 2028
CompletionEst.
Feb 28, 2029
Last update
Sep 17, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Sep 17, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT06733363
Responsible party
Sponsor
First posted
Dec 13, 2024
Start date
Jan 13, 2026
Primary completion
Jan 13, 2028 (estimated)
Completion
Feb 28, 2029 (estimated)
Last update
Sep 17, 2026

Study contacts

Karen Yeary, MD
Contact
askroswell@roswellpark.org
8772757724
Karen Yeary, MD
principal investigator · Roswell Park Comprehensive Cancer Center

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Interested in this study?

Eligibility is decided by the study team. Share this record with your doctor or contact the team directly.

Contact study team

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion