Recruiting
Phase 2

BCG vs. Bicalutamide

Sponsor:

CHU de Quebec-Universite Laval

Code:

NCT05327647

Conditions

Non-Muscle Invasive Bladder Cancer

Eligibility Criteria

Sex: Male

Age: 18+

Healthy Volunteers: Not accepted

Interventions

Bicalutamide

Control Arm

Study Details

Brief summary:

This is a phase II randomized controlled clinical trial comparing standard induction BCG versus bicalutamide and standard induction BCG among patients with non-muscle invasive bladder cancer.

Conditions

Non-Muscle Invasive Bladder Cancer

Study ID

NCT05327647

Start date

Jun 23, 2022

Status verified date

Dec, 2025

Completion date

Dec 31, 2026

Anticipated

Primary completion date

Sep 1, 2026

Anticipated

Eligibility Criteria

Eligibility Criteria

Sex: Male

Age: 18+

Healthy Volunteers: Not accepted

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.

Study Design

Enrollment

160 participants

Anticipated

Allocation

Non randomized

Intervention Model

Sequential

Primary purpose

Treatment

Interventions and Outcome Measures

Arms

experimental: Bicalutamide

Induction intravesical Bacille Calmette-Guérin treatment with 150 mg daily oral bicalutamide for 90 days (in cohort A and cohort B)

active comparator: Control Arm

cohort A: Induction intravesical Bacille Calmette-Guérin treatment

cohort B: Induction intravesical Bacille Calmette-Guérin treatment with 150 mg daily oral placebo for 90 days

Interventions

Bicalutamide

Induction intravesical BCG with bicalutamide 150 mg for 90 days

Control Arm

Induction BCG

Primary outcome measure

  • Rate of bladder tumour recurrence [ Time Frame: 3 years ]

Central Contacts and Locations

Central contacts

Locations

London Health Sciences Centre

Recruiting

London, Ontario, Canada, N6A 5W9

Contacts

University Health Network, Princess Margaret Cancer Centre

Recruiting

Toronto, Ontario, Canada, M5G 2C1

Contacts

Girish Kulkarni, BSc, MD, PhD, FRCSC

Girish.kulkarni@uhn.ca

Centre intégré de santé et services sociaux de Chaudière Appalaches

Recruiting

Lévis, Quebec, Canada, G6V3Z1

Contacts

Centre Hospitalier de l'Université De Montréal_CHUM

Recruiting

Montreal, Quebec, Canada, H2X 3E4

McGill University Health Centre_CUSM

Recruiting

Montreal, Quebec, Canada, H4A 3J1

Contacts

CHU de Québec-Université Laval

Recruiting

Québec, Quebec, Canada, G1G 5X1

Contacts

CIUSSS de l'Estrie - CHUS

Recruiting

Sherbrooke, Quebec, Canada, J1H 5H3

Contacts

More Information

Sponsor

CHU de Quebec-Universite Laval

Last update posted

Dec 18, 2025

Last verified

Dec, 2025

Keywords

  • Bicalutamide
  • BCG instillation
  • Placebo

Trial information was received from ClinicalTrials.gov and was last updated on 2026-09-10. This information was provided to ClinicalTrials.gov by CHU de Quebec-Universite Laval on 2025-12-18.