A multicentre observational study on treatment approaches and biomarkers in de novo metastatic hormone sensitive prostate cancer in Russian Federation
This is a multicentre observational study on treatment approaches, demographic and clinical characteristics and prevalence of biomarkers (PTEN-loss, HER2-positive status; HRR mutations, HRD-positive status) in patients with de novo high-aggressive mHSPC in Russian Federation. The study will sequentially include only those patients who have signed the informed consent form (ICF). No procedures will be applied to patients in addition to the routine clinical practice. Study population will consist of patients with de novo high-aggressive (Gleason 8-10) histologically confirmed mPC diagnosed within 2 years prior to inclusion with available medical history, biopsy formalin-fixed paraffin-embedded (FFPE) tumour tissue sample. It is estimated that approximately 400 patients will be enrolled in about 30 sites. Demographic and clinical characteristics, treatment approaches and outcomes will be collected during a single visit carried out according to routine clinical practice. Data from the date of de novo high-aggressive mPC diagnosis (date of histological verification) till enrollment will be collected by study physician based on the patient's medical records and interview during the visit and entered into electronic case report form (eCRF). The study physician will be responsible for ensuring that all required data is collected and entered into the eCRF. No follow-up is planned for patients in this study. For PTEN-loss and HER2-hyperexpression testing (by IHC) and HRRm (mutations in HRR pathway genes), HRD testing (by NGS \[next generation sequencing\]) available FFPE tumour tissue sample collected as part of routine clinical practice will be used. Testing will be performed in central laboratories. Overall expected duration of the study enrollment and data collection (from the first patient inclusion to the final database lock) is about 27 months, or until 400 eligible patients are included to the study and data on these patients are collected (including results of FFPE sample testing), whichever occurs first.
Study Type
OBSERVATIONAL
Enrollment
400
Research Site
Arkhangelsk, Russia
RECRUITINGResearch Site
Barnaul, Russia
Proportion of patients received any ADT
Proportion of patients received any Androgen deprivation therapy (ADT)
Time frame: 24 months
Proportion of patients received ADT by each type and by each drug
Proportion of patients received Androgen deprivation therapy (ADT) by each type and by each drug;
Time frame: 24 months
Proportion of patients received first generation antiandrogens
Proportion of patients received first generation antiandrogens;
Time frame: 24 months
Proportion of patients received ARPI at mHSPC
Proportion of patients received androgen receptor pathway inhibitors (ARPI) at Metastatic hormone-sensitive prostate cancer (mHSPC) overall and by each drug;
Time frame: 24 months
Proportion of patients received any chemotherapy at mHSPC
Proportion of patients received any chemotherapy at Metastatic hormone-sensitive prostate cancer (mHSPC)
Time frame: 24 months
Duration of chemotherapy
Duration of chemotherapy in months (to be calculated if chemotherapy completed before or at the enrollment);
Time frame: 24 months
Proportion of patients received radiation therapy
Proportion of patients received radiation therapy (RT) overall and by each type (if applicable);
Time frame: 24 months
Proportion of patients with each radiation area
Proportion of patients with each radiation area (if applicable) (to be calculated in patients who received any RT);
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Research Site
Chelyabinsk, Russia
RECRUITINGResearch Site
Irkutsk, Russia
NOT_YET_RECRUITINGResearch 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
Obninsk, Russia
RECRUITING...and 7 more locations
Time frame: 24 months
Proportion of patients underwent surgery at mHSPC stage
Proportion of patients underwent surgery at Metastatic hormone-sensitive prostate cancer (mHSPC) stage overall and by each type (if applicable);
Time frame: 24 months
Proportion of patients received triplet therapy
Proportion of patients received triplet therapy (ADT + ARPI + chemotherapy) at mHSPC overall and by each ARPI;
Time frame: 24 months
Proportion of patients with PTEN loss by IHC
Proportion of patients with PTEN (Phosphatase and TENsin homolog) loss by Immunohistochemistry (IHC)
Time frame: 24 months
Number of Chemotherapy Cycles
Number of chemotherapy cycles is defined as the total number of chemotherapy cycles completed prior to or at the time of study enrollment.
Time frame: 24 months
Age at the diagnosis of de novo high-aggressive histologically confirmed mPC
Age at the diagnosis of de novo high-aggressive histologically confirmed mPC, years
Time frame: 24 months
Proportion of patients of different races and ethnicities
Proportion of patients of different races and ethnicities
Time frame: 24 months
Proportion of patients with presence of a family oncology history
Proportion of patients with presence of a family oncology history (first degree relatives) overall and by each disease;
Time frame: 24 months
Proportion of patients with a personal oncology history
Proportion of patients with a personal oncology history overall and by each disease;
Time frame: 24 months
Proportion of patients with each category by ECOG assessment
Proportion of patients with each category by ECOG assessment at the inclusion. ECOG is Eastern Cooperative Oncology Group scale used to assess a patient's functional ability (grades are from 0 to 5 where 0 means "Fully active, able to carry on all pre-disease performance without restriction" and 5 means "Dead")
Time frame: 24 months
Proportion of patients with each stage by TNM classification
Proportion of patients with each stage by TNM classification. The TNM cancer staging system is a globally recognized method for classifying cancer based on the extent of the tumor (T), involvement of nearby lymph nodes (N), and presence of distant metastasis (M). The TNM values are then grouped into overall stage groupings, usually from I to IV, where Stage I is generally early-stage and Stage IV indicates advanced cancer with distant metastasis.
Time frame: 24 months
Proportion of patients with each histological type of tumour
Proportion of patients with each histological type of tumour (types of adenocarcinoma);
Time frame: 24 months
Proportion of patients with each category by Gleason scale
Proportion of patients with each category (8 (4+4), 8 (3+5), 8 (5+3), 9, 10)) by Gleason scale. The Gleason scale is a system used to grade prostate cancer based on how different the cancer cells look from normal cells under a microscope. It helps doctors determine how quickly the cancer is likely to grow and spread, influencing treatment decisions. The Gleason score is determined by adding the two most common grades (from 1 to 5) found in the biopsy sample
Time frame: 24 months
Proportion of patients with high and low volume of disease
Proportion of patients with high and low volume of disease;
Time frame: 24 months
Proportion of patients with each localization of metastases
Proportion of patients with each localization of metastases at the diagnosis, symptomatic or not;
Time frame: 24 months
Proportion of patients with each source of tumour sample
Proportion of patients with each source of tumour sample (primary tumour, metastases);
Time frame: 24 months
Proportion of patients with each result of HER2 expression by IHC
Proportion of patients with each result of Human Epidermal Growth Factor Receptor 2 (HER2) expression by Immunohistochemistry (IHC). HER2 Status: HER2-positive: Cancer cells have high levels of HER2 protein. HER2-negative: Cancer cells have low or no detectable HER2 protein. HER2-low: This category is emerging, indicating a moderate level of HER2 expression, and may be responsive to certain targeted therapies.
Time frame: 24 months
Proportion of patients with presence of pathogenic mutations in HRR genes
Proportion of patients with presence of pathogenic mutations in Homologous recombination repair (HRR) genes by Next Generation Sequencing (NGS) results overall and by each gene;
Time frame: 24 months
Proportion of patients with positive HRD status
Proportion of patients with positive Homologous recombination deficiency (HRD) status by Next Generation Sequencing (NGS) results.
Time frame: 24 months