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

NCT ID: NCT05327647

Last Updated: 2025-12-18

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE2

Total Enrollment

160 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-06-23

Study Completion Date

2026-12-31

Brief Summary

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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.

Detailed Description

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Bladder cancer is the second most common urological cancer after prostate cancer. Non-muscle invasive bladder cancer (NIMBC) is the most common form (\~ 75%). The standard treatment involves the use of intravesical instillation of bacillus Calmette-Guérin (BCG). Nonetheless, 30-40% of the patients still relapse or progress. Clinical and laboratory research suggests that medications targeting the androgen receptor, such as bicalutamide, combined with the standard treatment with BCG may decrease the recurrence rate of NMIBC.

The study is composed of two cohort A (open-label, around 40 patients) and B (double-blind, with placebo, around 120 patients).

In the cohort A, the participants will be randomized to either the treatment with 1) daily intake of 150 mg bicalutamide for 3 months overlapping with the 6 cycles of intravesical instillations of BCG or 2) the standard of care of 6 cycles of intravesical instillation BCG.

In the cohort B, the participants will be randomized to either the treatment with 1) daily intake of 150 mg bicalutamide for 3 months overlapping with the 6 cycles of intravesical instillations of BCG or 2) daily intake of 150mg placebo for 3 months + the standard of care of 6 cycles of intravesical instillation BCG.

The participation in this trial should last 36 months from the screening visit to the last follow-up visit.

Conditions

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Non-Muscle Invasive Bladder Cancer

Keywords

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Bicalutamide BCG instillation Placebo

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

SEQUENTIAL

The study started with cohort A (open-label study) for around 40 participants. Then the recruitment in cohort A will stop and the recruitment in cohort B (double-blind, with placebo) will start.
Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Participants

Study Groups

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Bicalutamide

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

Group Type EXPERIMENTAL

Bicalutamide

Intervention Type DRUG

Induction intravesical BCG with bicalutamide 150 mg for 90 days

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

Group Type ACTIVE_COMPARATOR

Control Arm

Intervention Type BIOLOGICAL

Induction BCG

Interventions

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Bicalutamide

Induction intravesical BCG with bicalutamide 150 mg for 90 days

Intervention Type DRUG

Control Arm

Induction BCG

Intervention Type BIOLOGICAL

Other Intervention Names

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Nonsteroidal antiandrogen

Eligibility Criteria

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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.
Minimum Eligible Age

18 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

No

Sponsors

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Canadian Institutes of Health Research (CIHR)

OTHER_GOV

Sponsor Role collaborator

Cancer Research Society

OTHER

Sponsor Role collaborator

CHU de Quebec-Universite Laval

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Paul Toren, MD,PhD,FRCSC

Role: STUDY_CHAIR

CHU de Québec-Université Laval

Wassim Kassouf, MDCM,FRCSC

Role: PRINCIPAL_INVESTIGATOR

McGill University Health Centre/Research Institute of the McGill University Health Centre

Melissa Huynh, MD,MPH,FRCSC

Role: PRINCIPAL_INVESTIGATOR

London Health Sciences Centre, Victoria Hospital

Jean-Baptiste Lattouf, MD,FRCSC

Role: PRINCIPAL_INVESTIGATOR

Centre Hospitalier Universitaire de Montréal (CHUM)

Girish Kulkarni, BSc, MD, PhD, FRCSC

Role: PRINCIPAL_INVESTIGATOR

The Princess Margaret Cancer Foundation

Locations

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London Health Sciences Centre

London, Ontario, Canada

Site Status RECRUITING

University Health Network, Princess Margaret Cancer Centre

Toronto, Ontario, Canada

Site Status RECRUITING

Centre intégré de santé et services sociaux de Chaudière Appalaches

Lévis, Quebec, Canada

Site Status RECRUITING

Centre Hospitalier de l'Université De Montréal_CHUM

Montreal, Quebec, Canada

Site Status RECRUITING

McGill University Health Centre_CUSM

Montreal, Quebec, Canada

Site Status RECRUITING

CHU de Québec-Université Laval

Québec, Quebec, Canada

Site Status RECRUITING

CIUSSS de l'Estrie - CHUS

Sherbrooke, Quebec, Canada

Site Status RECRUITING

Countries

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Canada

Central Contacts

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Paul Toren, MD,PhD,FRCSC

Role: CONTACT

Phone: 418-525-4444

Email: [email protected]

Facility Contacts

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Melissa Huynh, MD

Role: primary

Girish Kulkarni, BSc, MD, PhD, FRCSC

Role: primary

Matthieu Gratton, MD

Role: primary

Jean-Baptiste Lattouf, MD

Role: primary

Wassim Kassouf, MDCM

Role: primary

Paul Toren, MD

Role: primary

Typhaine Gris, PhD

Role: backup

Patrick Richard, MD

Role: primary

Other Identifiers

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MP-20-2022-6318

Identifier Type: -

Identifier Source: org_study_id