A multicentre observational study on treatment approaches and HER2 positive status prevalence in different stages of bladder cancer and PD-L1-positive status in metastatic bladder cancer in Russian Federation
This is an observational study entailing primary and secondary data collection. As an observational, this study does not imply any intervention into a routine clinical practice, including choice of treatment modality or additional diagnostic methods. Epidemiologic methods and descriptive analysis will be used for data collection and evaluation of all endpoints and measurements of interest. It will be a multicentre study. Planned number of study sites is about 30 oncological centres performing specialised treatment and follow-up of patients with urothelial bladder cancer in different regions of Russia. Planned study population consists of approximately 600 adult patients with urothelial bladder cancer. Patients who were diagnosed with urothelial bladder cancer and satisfy the additional eligibility criteria as assessed by the investigator will be invited to participate during routine clinical visit. Only patients who will give their written informed consent will be included. Consecutive patients included in the study will form three study cohorts of equal size (around 200 participants each) according to the stages of urothelial bladder cancer at the time of study inclusion: high-risk NMIBC, MIBC, and mBC. The investigator will enter medical data of the enrolled patients into the electronic case report form (eCRF) from the source medical documentation. No follow-up is planned, the study will consist of only one visit carried out according to routine clinical practice, where patient's demographic and clinical characteristics as well as medical history and used treatment approaches will be recorded, and formalin-fixed paraffin-embedded (FFPE) tumour tissue samples collected as part of routine clinical practice will be shipped to the central laboratory. The overall expected duration of the study enrollment is about 18 months or until 600 patients will be included in the study, and all required data (including results of IHC testing in central laboratory) will be collected, whichever occurs first.
Study Type
OBSERVATIONAL
Enrollment
600
Research Site
Arkhangelsk, Russia
RECRUITINGResearch Site
Barnaul, Russia
RECRUITINGProportion of patients receiving any intravesical treatment among patients with high-risk NMIBC
Proportion of patients receiving any intravesical treatment among patients with high-risk Non-muscle invasive bladder cancer (ongoing and anamnestic);
Time frame: 24 months
Proportion of patients receiving intravesical chemotherapy among patients with high-risk NMIBC
Proportion of patients receiving intravesical chemotherapy among patients with high-risk ongoing and anamnestic Non-muscle invasive bladder cancer (overall and by each treatment regimen);
Time frame: 24 months
Proportion of patients receiving intravesical BCG treatment among patients with high-risk NMIBC
Proportion of patients receiving intravesical Bacillus Calmette-Guérin treatment among patients with high-risk ongoing and anamnestic Non-muscle-invasive bladder cancer (overall and by each treatment regimen: induction/ induction + maintenance);
Time frame: 24 months
Proportion of patients receiving any intravesical treatment among patients with non-high-risk NMIBC
Proportion of patients receiving any intravesical treatment among patients with non-high-risk Non-muscle-invasive bladder cancer (anamnestic);
Time frame: 24 months
Proportion of patients receiving intravesical chemotherapy among patients with non-high-risk anamnestic NMIBC
Proportion of patients receiving intravesical chemotherapy among patients with non-high-risk anamnestic Non-muscle-invasive bladder cancer (overall and by each treatment regimen);
Time frame: 24 months
Proportion of patients receiving intravesical BCG treatment among patients with non high-risk anamnestic NMIBC
Proportion of patients receiving intravesical Bacillus Calmette-Guérin treatment among patients with non high-risk anamnestic Non-muscle-invasive bladder cancer(overall and by each treatment regimen: induction/ induction + maintenance);
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Research Site
Krasnodar, Russia
NOT_YET_RECRUITINGResearch Site
Krasnoyarsk, Russia
RECRUITINGResearch Site
Moscow, Russia
NOT_YET_RECRUITINGResearch Site
Moscow, Russia
RECRUITINGResearch Site
Nizhny Novgorod, Russia
NOT_YET_RECRUITINGResearch Site
Novosibirsk, Russia
NOT_YET_RECRUITINGResearch Site
Obninsk, Russia
NOT_YET_RECRUITINGResearch Site
Omsk, Russia
NOT_YET_RECRUITING...and 6 more locations
Time frame: 24 months
Proportion of patients without intravesical NMIBC treatment
Proportion of patients without intravesical Non-muscle-invasive bladder cancer (ongoing and anamnestic) treatment (high-risk, non-high-risk)
Time frame: 24 months
Number of relapses in high risk NMIBC patients (ongoing and anamnestic) overall and by each treatment regimen
Number of relapses in high risk Non-muscle-invasive bladder cancer patients (ongoing and anamnestic) overall and by each treatment regimen (intravesical chemotherapy, intravesical BCG (induction or induction with maintenance))
Time frame: 24 months
Number of relapses in non-high risk NMIBC patients overall and by each treatment regimen, intravesical BCG
Number of relapses in non-high risk Non-muscle-invasive bladder cancer patients (anamnestic) overall and by each treatment regimen (intravesical chemotherapy, intravesical Bacillus Calmette-Guérin (induction or induction with maintenance))
Time frame: 24 months
Time to first relapse of NMIBC
Time to first relapse of NMIBC (ongoing and anamnestic)
Time frame: 24 months
Proportion of patients receiving neoadjuvant treatment among patients with MIBC
Proportion of patients receiving neoadjuvant treatment among patients with Muscle-invasive bladder cancer (ongoing and anamnestic) (overall and by each treatment regimen);
Time frame: 24 months
Rate of pathologic complete response among MIBC patients receiving neoadjuvant treatment
Rate of pathologic complete response among Muscle-invasive bladder cancer patients (ongoing and anamnestic) receiving neoadjuvant treatment (overall and by each treatment regimen);
Time frame: 24 months
Proportion of MIBC patients not received neoadjuvant treatment before radical cystectomy
Proportion of Muscle-invasive bladder cancer patients (ongoing and anamnestic) not received neoadjuvant treatment before radical cystectomy.
Time frame: 24 months
Proportion of patients received adjuvant treatment among patients with MIBC
Proportion of patients received adjuvant treatment among patients with Muscle-invasive bladder cancer (ongoing and anamnestic) (overall and by each treatment regimen);
Time frame: 24 months
Proportion of MIBC patients (anamnestic) received trimodal therapy
Proportion of Muscle-invasive bladder cancer patients (anamnestic) received trimodal therapy (maximal Transurethral resection of bladder tumor + chemoradiation therapy);
Time frame: 24 months
Time to progression to mBC from NMIBC and MIBC
Time to progression to metastatic bladder cancer (anamnestic) from Non-muscle-invasive bladder cancer and Muscle-invasive bladder cancer;
Time frame: 24 months
Type of progression to mBC from NMIBC and MIBC
Type of progression to Metastatic bladder cancer (anamnestic) from Non-muscle-invasive bladder cancer and Muscle-invasive bladder cancer(localization of metastases);
Time frame: 24 months
Proportion of patients with locoregional progression after cystectomy
Proportion of patients with locoregional progression after cystectomy (Muscle-invasive bladder cancer, anamnestic);
Time frame: 24 months
Proportions of patients receiving systemic treatment regimens within first-line therapy among patients with mBC
Proportions of patients receiving systemic treatment regimens within first-line therapy among patients with Metastatic bladder cancer (by each treatment regimen);
Time frame: 24 months
Proportion of patients with progression on first line mBC treatment
Proportion of patients with progression on first line Metastatic bladder cancer treatment overall and by each treatment regimen.
Time frame: 24 months
Prevalence of IHC-defined HER2-positive status among patients with high-risk NMIBC
Prevalence of immunohistochemically-defined HER2-positive status (defined as proportion of patients with 3+ HER2 protein expression based on immunohistochemistry testing of formalin-fixed paraffin-embedded tumor tissue samples) among patients with high-risk Non-muscle-invasive bladder cancer;
Time frame: 24 months
Prevalence of IHC-defined HER2-positive status among patients with MIBC
Prevalence of mmunohistochemically-defined HER2-positive status (defined as proportion of patients with 3+ HER2 protein expression based on immunohistochemistry testing of formalin-fixed paraffin-embedded tumour tissue samples) among patients with Muscle-invasive bladder cancer;
Time frame: 24 months
Prevalence of IHC-defined HER2-positive status among patients with mBC;
Prevalence of mmunohistochemically-defined HER2-positive status (defined as proportion of patients with 3+ HER2 protein expression based on immunohistochemistry testing of formalin-fixed paraffin-embedded tumour tissue samples) among patients with mBC;
Time frame: 24 months
Concordance of immunohistochemically-defined HER2-positive status among 3 patient cohorts
Concordance of immunohistochemically-defined HER2-positive status (defined as proportion of patients with 3+ HER2 protein expression based on immunohistochemistry testing of formalin-fixed paraffin-embedded tumour tissue samples) among patients with Non-muscle-invasive bladder cancer, muscle-invasive bladder cancer and metastatic bladder cancer in primary tumor samples and metastasis if both available;
Time frame: 24 months
Prevalence of PD-L1 positive status among patients with mBC
Prevalence of PD-L1 positive status (defined as proportion of patients with at least one of the following criteria based on IHC testing of Formalin-fixed paraffin-embedded tumour tissue sample: (1) ≥25% PD L1 positive tumor cells; (2) ≥25% PD-L1-positive immune cells if \>1% of the tumor area contained such cellular elements; or (3) 100% PD-L1-positive immune cells if 1% of the tumor area contained immune cells) among patients with metastatic bladder cancer.
Time frame: 24 months