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BCG + MMC: Adding Mitomycin C to BCG in High-risk, Non-muscle-invasive Bladder Cancer

BCG + MMC: Adding Mitomycin C to BCG as Adjuvant Intravesical Therapy for High-risk, Non-muscle-invasive Bladder Cancer: a Randomised Phase 3 Trial

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06462001
Enrollment
500
Registered
2024-06-17
Start date
2020-12-10
Completion date
2026-12-01
Last updated
2024-06-17

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Transitional Cell Carcinoma, Transurethral Resection

Brief summary

Instillation of Bacillus of Calmette-Guerin (BCG) into the urinary bladder (intravesical administration) improves rates of disease recurrence and progression after transurethral resection (TUR) of high risk, non-muscle-invasive bladder cancer (NMIBC), but over 30% of people still develop recurrent transitional cell carcinoma (TCC) despite optimal therapy with adjuvant intravesical BCG. Our meta-analysis, including a recent randomised phase 2 trial, suggests that outcomes might be improved further by using an adjuvant intravesical regimen that includes both Mitomycin (MM) and BCG. These promising findings require corroboration in a definitive, large scale, randomised phase 3 trial using standard techniques for intravesical administration.

Interventions

BIOLOGICALBacillus Calmette-Guerin Vaccine Intravesical

BCG (Oncotice) is administered intravesically as per usual standard of care

DRUGMitomycin

MMC is administered intravesically as per usual standard of care

Sponsors

Australian and New Zealand Urogenital and Prostate Cancer Trials Group
CollaboratorOTHER
University of Sydney
CollaboratorOTHER
Nottingham University Hospitals NHS Trust
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

an open label, randomised, stratified, 2-arm multicentre phase 3 clinical trial

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Males or females with confirmed high grade pTa or stage pT1 (any grade) non-muscle invasive bladder cancer on initial or re-resection histology (concurrent carcinoma in situ is allowed). 2. Age ≥ 18 yrs 3. No macroscopically visible disease at cystoscopy within 8 weeks prior to randomisation. This may either be the initial TURBT at which the primary tumour was completely resected, or a planned second cystoscopy and/ or re-resection done within 8 weeks of the initial TURBT. 4. ECOG Performance Status of 0-2 5. Adequate bone marrow, renal and liver function confirmed by pre-randomisation blood tests. 6. Study treatment both planned and able to start within 4 weeks of randomisation 7. Is willing to complete HRQL questionnaires or is unable to complete them because of literacy, insufficient English or limited vision 8. Willing and able to comply with all study requirements, including treatment, timing and/or nature of all required assessments 9. Signed, written informed consent

Exclusion criteria

1. Contraindications or hypersensitivity to investigational products, BCG and MM 2. Prior treatment with any other intravesical agent including BCG or MM (excludes single doses given post TURBT) 3. Current or past transitional cell carcinoma (TCC) of the upper urinary tract 4. Prior muscle-invasive (stage T2 or higher) transitional-cell carcinoma of the bladder 5. Bladder dysfunction precluding intravesical therapy e.g. Severe urinary incontinence or overactive or spastic bladder 6. Life expectancy \< 3 months 7. Congenital or acquired immune deficiencies, whether due to a concurrent disease (e.g. acquired immune deficiency syndrome (AIDS), leukaemia, lymphoma) or immunosuppressive therapy (e.g. corticosteroids), or cancer therapy (cytotoxic drugs, radiation) 8. Prior radiotherapy of the pelvis 9. Prior or current treatment with radiotherapy-response or biological-response modifiers 10. Clinical evidence of existing active tuberculosis 11. History of another malignancy within 5 years prior to registration. Patients with non-melanomatous carcinoma of the skin are eligible for this study. 12. Serious medical or psychiatric conditions that might limit the ability of the patient to comply with the protocol. 13. Pregnancy, lactation, or inadequate contraception. Women must be post menopausal, infertile, or use a reliable means of contraception. Women of childbearing potential must have a negative pregnancy test done within 7 days prior to registration. Men must have been surgically sterilised or use a (double if required) barrier method of contraception.

Design outcomes

Primary

MeasureTime frameDescription
Disease free survival5 years follow upDeath, disease free survival, or evidence of transitional cell carcinoma (TCC)

Secondary

MeasureTime frameDescription
Activity3 monthsClear cystoscopy at 3 months
Time to Recurrence5 years follow upRecurrence of TCC bladder
Time to Progression5 years follow upRecurrence of Higher Grade or Stage
Safety and adverse eventsDuring treatment phase of the trial (typically 12 months)Adverse Events Graded According to CTC AE V4.03
Overall Survival Time5 years follow upDeath from any Cause
Feasibility as a future standard of careDuring treatment phase of the trial, typically 1 yearCompliance with intravesical therapy, measured in percent (%) of planned intravesical therapies actually given
Marginal Resource Use5 years follow upNumber of GP visits, Number of outpatient and emergency department visits, number of inpatient admissions and number of days admitted
Health-Related Quality of Life5 years follow upQLQ-BLS24. Individual internationally-validated (but subjective) symptom score questionnaire that gives an overall QOL assesment, that can be tracked throughout follow up. They do not use SI units of measurement.

Other

MeasureTime frameDescription
To consider future exploratory biomarker studies as potential prognostic biomarkers or predictive biomarkers of treatment5 years follow upFuture (as yet unidentified) biomarker expression could be measured and then statistical association of those biomarkers with primary outcome meaures assessed.

Countries

United Kingdom

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026