Early Detection of Prostate Cancer by Liquid Biopsy
试验速览
- 阶段
- 不适用
- 状态
- 招募中
- 入组人数
- 320
- 试验地点
- 4
- 主要终点
- Discovery of CTCs and tumour cell products circulating in blood (DNA, exosomes) for early PCa detection.
研究概览
简要总结
This study is the early detection of prostate cancer by analysing circulating bloodbased biomarkers. Based on our latest developments, we primarily aim to assess the validity of CTCs (circulating tumour cells) and tumour cell products circulating in blood (DNA, exosomes) for early PCa (Prostate cancer) detection.
In the first discovery period, the investigators will assess which Liquid biopsy marker will provide the best discrimination between the patients with histologically proven PCa and age-matched noncancer controls. Further subset analysis with special emphasis on the identification of high risk PCa patients with aggressive tumours as defined by a Gleason score ("gold standard") of 8 or higher (ISUP 4 and higher), will be performed. The resulting biomarker candidates will then be further explored in the subsequent training and validation study (years 2 and 3) in order to obtain the single blood test or combination of tests with the highest sensitivity and specificity for detection of early PCa and/or high-risk PCa. The investigators will also compare these new biomarkers with recently FDA cleared CE-IVD assays for early detection of prostate cancer, based on classic peripheral tumour markers, such as Prostate Health Index (PHI) and PCA3. Follow up evaluations will be initiated to assess the prognostic relevance of the candidate biomarkers determined in this project. Here, the investigators will set up the data management system including all relevant information on the tissues collected and the results of the analyses as well as the clinical data of the patients investigated in this study.
详细描述
In this preclinical validation study patients suspicious of prostate cancer who will undergo initial prostate biopsy are going to be asked for blood samples during a routine visit. Each patient will have had an MRI (Magnetic Resonance Imaging) as part of the care before performing the biopsy. The investigators will draw a total of 49 ml peripheral blood from consented patients before the initial diagnostic biopsy is taken. Within this project, validation of liquid biopsy assays for early detection of prostate cancer patients is the primary goal.
In order to determine CTC numbers, 21 ml of blood will be subjected to either CTC-Capture, and 28 ml for the EPIDROP analysis according to standard protocol (For analysis of circulating blood products plasma, analysis of tumor specific mutations or promotor methylation, analysis of extracellular vesicles and microRNA). The investigators will also analyze the Prostate Health Index marker from the additional EDTA tube (7 ml).
The investigators will assess whether CTC counts and/or detection of tumor specific blood products will provide discrimination between the men with histologically proven prostate cancer and agematched non-cancer controls as well as identification of high-risk PCa patients.
Furthermore, the investigators will compare results from tested liquid biopsy assay with current standard of early prostate cancer detection using both serum PSA and digital rectal examination, MRImp and PSA density.
The discovery phase is a non-blind study on 70 subjects with elevated PSA, and 50 negative controls (Healthy patients no suspicion of prostate cancer; PSA<2.5). The 70 patients are patients with suspected prostate cancer and will undergo prostate biopsy.
研究设计
- 研究类型
- Interventional
- 分配方式
- Non Randomized
- 干预模型
- Parallel
- 主要目的
- Diagnostic
- 盲法
- None
入排标准
- 年龄范围
- 40 Years 至 —（Adult, Older Adult）
- 性别
- Male
- 接受健康志愿者
- 否
入选标准
- •Men over 40 being suspicious of prostate cancer
- •Subject with PSA ≥ 4 and designated for biopsy
- •Subjects must be able to attend all scheduled visits and to comply with all trial procedures
- •mpMRI done before prostate biopsy
- •Subject must be covered by public health insurance
- •Signed informed consent form
- •Inclusion Criteria Subject Control Patient patient free from prostatic disease :
- •Men over 40 with no suspicion of prostate cancer
- •Subject with PSA < 2.5 and normal digital rectal examination
- •Subject must be covered by public health insurance
- •Signed informed consent form
排除标准
- •Subject with histologically confirmed prostate cancer
- •Subject with a verified viral infection (HIV or Hepatitis)
- •Subject under Finasteride treatment
- •Subject under hormonal treatment (analogs, antagonists, androgenics)
- •Subject with other cancer diagnosed
- •Subject unable to sign consent
- •Planned longer stay outside the region that prevents compliance with the visit plan
- •Subject deprived of liberty, protected adults or vulnerable persons
- •Urinary infection ≤ 2 months
- •Subject excluding health insurance registration
- •Subject refusing to perform prostate biopsy
- •Subject who are in a dependency or employment with the sponsor or the investigator
- •Exclusion Criteria Subject Control :
- •Subject with histologically confirmed prostate cancer
- •Subject with a verified viral infection (HIV or Hepatitis)
- •Subject under Finasteride treatment
- •Subject with other cancer diagnosed
- •Subject unable to sign consent
- •Planned longer stay outside the region that prevents compliance with the visit plan
- •Subject deprived of liberty, protected adults or vulnerable persons
- •Urinary infection ≤ 2 months
- •Subject excluding health insurance registration
研究组 & 干预措施
Men over 40 being suspicious of prostate cancer
Per patient 49 ml of peripheral blood sample after signing consent and performing before the 1st prostate biopsy
干预措施: Blood sample (Diagnostic Test)
Men over 40 with no suspicion of prostate cancer
Per patient 49 ml of peripheral blood sample after signing consent
干预措施: Blood sample (Diagnostic Test)
结局指标
主要结局
Discovery of CTCs and tumour cell products circulating in blood (DNA, exosomes) for early PCa detection.
时间窗: Expected duration of the recruitment of the discovery phase: 12 months
Evaluate Liquid biopsy marker between the patients with histologically proven PCa and age-matched noncancer controls.
次要结局
- Detection duration of the recruitment of the validation study.(Expected duration of the recruitment of the validation study: 24 months)
- Validity of blood test with the highest specificity for detection of early PCa and/or high-risk PCa.(Expected duration of the recruitment of the validation study: 24 months)