Evaluation of PD-L1 Expression and Immune Infiltration in High-risk Non Muscle Invasive Bladder Cancer

NCT ID: NCT04726735

Last Updated: 2021-01-27

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

COMPLETED

Total Enrollment

100 participants

Study Classification

OBSERVATIONAL

Study Start Date

2020-03-16

Study Completion Date

2020-05-14

Brief Summary

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Non-muscle-invasive bladder cancer (NMIBC) has a high rate of recurrence (60 to 70%) and progression (20 to 30%) to muscle-invasive bladder cancer (MIBC).

The local immunotherapy (intra-vesical Bacillus Calmette-Guerin (BCG) following transurethral resection of the bladder tumor (TURBT)) reduces significantly the risk of recurrence and progression as compared to observation or to intra-vesical chemotherapy.

Systemic immunotherapy with programmed death ligand-1 (PD-L1) or Programmed cell Death 1 (PD1) inhibitors has shown major efficacy in the treatment of patients with advanced/metastatic urothelial carcinoma who have progressed on platinum-based regimens of chemotherapy, or even in front line setting. In the field of NMIBC, immunotherapy using PD-L1 or PD1 inhibitors is under investigation but the frequency of PD-L1 expression has rarely been precisely described in the different subtypes.

The aim of this retrospective study is to investigate the expression of PD-L1 by different types of NMIBC.

The secondary objective is to characterize the immune contexture of NMIBC.

Detailed Description

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Non-muscle-invasive bladder cancer (NMIBC) has a high rate of recurrence (60 to 70%) and progression (20 to 30%) to muscle-invasive bladder cancer (MIBC).

The local immunotherapy (intra-vesical Bacillus Calmette-Guerin (BCG) following transurethral resection of the bladder tumor (TURBT)) reduces significantly the risk of recurrence and progression as compared to observation or to intra-vesical chemotherapy.

Systemic immunotherapy with programmed death ligand-1 (PD-L1) or Programmed cell Death 1 (PD1) inhibitors has shown major efficacy in the treatment of patients with advanced/metastatic urothelial carcinoma who have progressed on platinum-based regimens of chemotherapy, or even in front line setting. In the field of NMIBC, immunotherapy using PD-L1 or PD1 inhibitors is under investigation but the frequency of PD-L1 expression has rarely been precisely described in the different subtypes.

The aim of this retrospective study is to investigate the expression of PD-L1 by different types of NMIBC.

The secondary objective is to characterize the immune contexture of NMIBC. The immunological contexture of NMIBC in comparison with normal bladder tissue and invasive bladder cancer will be deciphered. The objective is to determine immune signatures associated with response or relapse/progression, with and without immune treatments in NMIBC.

Conditions

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Bladder Cancer

Study Design

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Observational Model Type

CASE_ONLY

Study Time Perspective

RETROSPECTIVE

Study Groups

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Patients with histologically documented normal bladder

Samples of bladder tissue

Intervention Type BIOLOGICAL

Samples of bladder tissue collected between 2007 and 2011.

Patients with histologically documented Non Muscle Invasive Bladder Cancer

Samples of bladder tissue

Intervention Type BIOLOGICAL

Samples of bladder tissue collected between 2007 and 2011.

Patients with histologically documented Muscle Invasive Bladder Cancer

Samples of bladder tissue

Intervention Type BIOLOGICAL

Samples of bladder tissue collected between 2007 and 2011.

Interventions

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Samples of bladder tissue

Samples of bladder tissue collected between 2007 and 2011.

Intervention Type BIOLOGICAL

Eligibility Criteria

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Inclusion Criteria

Patients with histologically documented normal bladder, NMIBC (Ta, T1, CIS) or MIBC stored in the tissue bank.

Samples collected from 2007 to 2011. 3 years follow-up is mandatory to assess the frequency of recurrences and progressions.

Exclusion Criteria

* History of autoimmune disease
* Active tuberculosis
* Prior treatment with CD137 agonists, anti-programmed death-1 (PD-1), or anti-PD-L1 therapeutic antibody or pathway-targeting agents
Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University of Bordeaux

OTHER

Sponsor Role collaborator

University Hospital, Bordeaux

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Centre Hospitalier Universitaire de Bordeaux

Talence, , France

Site Status

Countries

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France

Other Identifiers

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CHUBX2018/55

Identifier Type: -

Identifier Source: org_study_id

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