Clinical trial Recruiting at 7 sites Phase 2 Interventional Ages 18 and up Men only

Using bicalutamide with BCG treatment for bladder cancer

Official title: A Phase II Randomized Trial of Bicalutamide in Patients Receiving Intravesical BCG for Non-muscle Invasive Bladder Cancer

Run by CHU de Quebec-Universite Laval · NCT05327647 · Data updated 2026-11-12

This study is testing if adding a drug called bicalutamide to the standard BCG treatment can help people with non-muscle invasive bladder cancer have fewer recurrences of their cancer.

Quick facts

PhasePhase 2
Study typeInterventional
Ages18 Years and up
SexMen only
Enrollment160 (estimated)
SponsorCHU de Quebec-Universite Laval
Academic / other
Locations7 sites (London, Ontario and 6 other locations)
StatusRecruiting
StartedJune 23, 2022
Main results expectedMay 1, 2027
Study endsDecember 31, 2027
Registry record updatedOctober 26, 2026
Trial IDNCT05327647 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates include males aged 18 or older with histologically confirmed non-muscle invasive urothelial carcinoma who are recommended for BCG treatment.

Probably not a fit

Patients who have received induction BCG therapy within the last 5 years or have unstable cardiovascular conditions may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This phase II clinical trial investigates the effectiveness of bicalutamide, an androgen receptor antagonist, in combination with standard intravesical Bacillus Calmette-Guérin (BCG) therapy for patients with non-muscle invasive bladder cancer (NMIBC). The trial consists of two cohorts: one open-label and one double-blind, where participants will receive either bicalutamide or a placebo alongside BCG treatment. The goal is to determine if bicalutamide can reduce the recurrence rate of NMIBC compared to standard BCG treatment alone. The study will last for 36 months, including follow-up visits.

Why it matters

Potential benefit: If successful, this approach could significantly reduce the recurrence rates of non-muscle invasive bladder cancer in patients.

How similar studies have gone: While the use of bicalutamide in this context is novel, previous studies have shown promise in targeting androgen receptors for cancer treatment.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Males, age 18 or greater.
2. Patients with histologically confirmed non-muscle invasive urothelial carcinoma.
3. Patients have been recommended for a course of intravesical BCG induction treatment by their urologist
4. Patients who received gemcitabine, epirubicin or mitomycin C instillations immediately post-operatively will be eligible for enrollment.
5. Patients with partners of child-bearing potential must agree to 2 acceptable forms of birth control and be continued for at least 3 months after study drug is discontinued.

Exclusion Criteria:

1. Patients who have received induction BCG therapy within the last 5 years will be ineligible for enrolment.
2. Patients with a history of myocardial infarction or hospital admission for heart failure within the previous 12 months or who have unstable cardiovascular status will be ineligible for enrolment.
3. Patients who have uncontrolled hypertension (for our purposes, defined as those having a systolic blood pressure \> 160 documented on 2 occasions despite appropriate medical therapy) will similarly be ineligible.
4. Patients with a history of liver disease whose hepatic enzymes, alkaline phosphatase or bilirubin are greater than twice the upper limit of normal will be ineligible.
5. Patients with clinical hypogonadism, those on androgen replacement therapy, or those with prostate cancer or other diseases treated with systemic hormonal therapy will be ineligible for study enrolment. Patients receiving 5ARIs will not be excluded.
6. Patients who have cancer treatment ongoing or planned in the near future which can be anticipated to decrease their 2-year survival or BCa treatment plan will be ineligible.
7. Patients taking an investigational drug within 2 weeks of enrolment into this study will be ineligible.
8. Patients receiving or planning to receive coumadin therapy will be ineligible.

Where it's running

  • London Health Sciences Centre
    London, Ontario, Canada
    Recruiting
  • University Health Network, Princess Margaret Cancer Centre
    Toronto, Ontario, Canada
    Recruiting
  • Centre intégré de santé et services sociaux de Chaudière Appalaches
    Lévis, Quebec, Canada
    Recruiting
  • Centre Hospitalier de l'Université De Montréal_CHUM
    Montreal, Quebec, Canada
    Recruiting
  • McGill University Health Centre_CUSM
    Montreal, Quebec, Canada
    Recruiting
  • CHU de Québec-Université Laval
    Québec, Quebec, Canada
    Recruiting
Show 1 more location
  • CIUSSS de l'Estrie - CHUS
    Sherbrooke, Quebec, Canada
    Recruiting

Study contacts

  • Principal investigator: Wassim Kassouf, MDCM,FRCSC — McGill University Health Centre/Research Institute of the McGill University Health Centre
  • Study coordinator: Paul Toren, MD,PhD,FRCSC
  • Email: paul.toren@crchudequebec.ulaval.ca
  • Phone: 418-525-4444

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.