Optimal Adjuvant Intravesical Therapy for Intermediate Risk Non Muscle Invasive Bladder Cancer: A Randomized Controlled Trial

NCT ID: NCT05146635

Last Updated: 2022-01-11

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

UNKNOWN

Clinical Phase

NA

Total Enrollment

110 participants

Study Classification

INTERVENTIONAL

Study Start Date

2021-12-01

Study Completion Date

2023-01-01

Brief Summary

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The objective of this prospective, single-center randomized controlled trial is to identify the optimal adjuvant intravesical therapy in patients with intermediate risk (IR) non muscle invasive bladder cancer by comparing two commonly utilized intravesical regimens; intravesical immunotherapy (BCG) and intravesical chemotherapy.

Detailed Description

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Bladder cancer (BC) represents a frequent urologic malignancy, and is mainly diagnosed as non-muscle invasive, At presentation, approximately 30% of patients have muscle-invasive BC (clinical T2 or higher) .

Both the natural history of non-muscle-invasive bladder cancer (NMIBC) and its treatment strategies are highly variable. Although some patients never experience disease recurrence, others experience disease progression and eventually die of their disease .

In the absence of intravesical treatment, a patient with non-muscle-invasive BC has a 47% probability of disease recurrence within 5 years of diagnosis and a 9% probability of progression to muscle-invasive disease .

Low-, intermediate- and high-risk categories have been defined to help guide the treatment of patients with NMIBC (Ta, T1, and CIS). Treatment of NMIBC is now relatively well-defined for high-risk and low-risk disease presentation, and awaits further refinement through improvements in therapeutic options .

Solitary low-grade tumors, especially smaller lesions (3 cm or less), respond best to resection and immediate instillation of intravesical agents, whereas higher risk lesions, such as carcinoma in situ and high-grade T1 stage disease, have demonstrated good response to BCG when given on a schedule of induction (an initial 6-week course) and maintenance (3-weekly courses every 6 months for 3 years) .

However, while low- and high-risk diseases have been well-classified, the intermediate-risk (IR) category has traditionally comprised a heterogeneous group of patients that do not fit into either of these categories . As a result, many urologists remain uncertain about the categorization of patients as 'intermediate-risk' as well as the selection of the most appropriate therapeutic option for this patient population .

The pathology of IR NMIBC has been defined by different organizations (American Urological Association, European Association of Urology, National Comprehensive Cancer Network, and International Consultation on Urological Diseases) as those patients with recurrent (\<1 year) low-grade Ta disease, solitary low-grade Ta \>3cm, multifocal low-grade Ta disease or high-grade Ta disease \<3 cm .

Current recommendations for therapy from the aforementioned organizations suggest a basic role for induction and maintenance therapy with either immunotherapy or chemotherapy. Data from a number of recent trials suggest that BCG with maintenance is superior to maintenance chemotherapy in this population as regard to recurrence free survival. On the other hand, no significant benefit of BCG compared with chemotherapy for tumor progression was identified.

Most of these studies were limited by its heterogeneity of patients (non-standardized definition of IR) and non-unified regimen of intravesical treatment (course or utilized chemotherapeutic agent). A well-designed randomized controlled trial with a rigorous methodology is warranted to provide a solid evidence for best practice in this special group of patients.

Conditions

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Bladder Cancer

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Participants

Study Groups

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Intravesical immunotherapy (BCG) group

Group Type ACTIVE_COMPARATOR

Intravesical Bcg

Intervention Type DRUG

Patients will receive induction and maintenance BCG after complete TURBT.

Intravesical chemotherapy (Epirubicin) group

Group Type ACTIVE_COMPARATOR

Intravesical chemotherapy (epirubicin)

Intervention Type DRUG

Patients will receive induction and maintenance epirubicin after complete TURBT.

Interventions

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Intravesical Bcg

Patients will receive induction and maintenance BCG after complete TURBT.

Intervention Type DRUG

Intravesical chemotherapy (epirubicin)

Patients will receive induction and maintenance epirubicin after complete TURBT.

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Adult patients (aged \>18 years)
* Patients with primary or recurrent papillary NMIBC.
* Complete TURBT.
* Patients with IR NMIBC confirmed by histopathology.

Exclusion Criteria

* Inability to give informed consent.
* Patients with history of previous radiotherapy or systemic chemotherapy.
* Patients suffering from immuno-deficiency or other malignancies.
* Patients with history of hypersensitivity reaction to BCG or epirubicin.
* Examination under anesthesia (EUA) reveals palpable bladder mass.
* Patients with low or high risk NMIBC by histopathology
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Mansoura University

OTHER

Sponsor Role lead

Responsible Party

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Amr Abdel-Lateif El-Sawy

Lecturer of Urology

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Amr A Elsawy

Role: PRINCIPAL_INVESTIGATOR

Mansoura University

Locations

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Mansoura Urology and Nephrology Center

Al Mansurah, DK, Egypt

Site Status RECRUITING

Countries

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Egypt

Central Contacts

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Amr A Elsawy

Role: CONTACT

01009428750

Mahmoud Laymon

Role: CONTACT

Facility Contacts

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Amr A Elsawy

Role: primary

01009428750

Mahmoud Laymon

Role: backup

Other Identifiers

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AE-12-2021

Identifier Type: -

Identifier Source: org_study_id

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