Castration-resistant Prostate Cancer Clinical Trial
— PEARLOfficial title:
Liquid Biopsy-based Detection of Resistance to Targeted Therapy in Prostate Cancer Patients
This study will prospectively compare liquid-biopsy based methods for prediction of resistance under androgen-receptor signaling inhibitors. The main goal is to determine the optimal method to determine androgen-receptor variant 7 (AR-V7) status. In addition, the investigators will explore novel other, AR-V7 independent mechanisms of resistance and their predictive value for proper treatment. These are based on further AR splice variants, and on neuroendocrine differentiation of prostate cancer cells.
Status | Recruiting |
Enrollment | 120 |
Est. completion date | December 31, 2024 |
Est. primary completion date | June 30, 2023 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | Male |
Age group | 18 Years and older |
Eligibility | Inclusion Criteria: - Histologically confirmed prostate adenocarcinoma - Castrate serum testosterone <50ng/ml or <1.7nmol/l under continued androgen-deprivation therapy or surgical castration - Progressive disease at study entry in accordance with Prostate Cancer Working Group 3 criteria (PCWG3): - Biochemical progression: Three consecutive rises in PSA at least one week apart resulting in two 50% increases over the nadir, and a PSA >1.0 ng/ml as minimal starting value, or - Radiologic progression: either two or more new bone lesions on bone scan or a new soft tissue lesion using RECIST (Response evaluation criteria in solid tumors). - Metastatic disease confirmed on computed tomography (CT) or bone scan - Planned treatment with ARSi (androgen-receptor signaling receptors) - Written informed consent of the patient Exclusion Criteria: - Persons who are in a dependency or employment relationship with the investigator or sponsor - Planned additional concurrent anticancer therapy |
Country | Name | City | State |
---|---|---|---|
Germany | Technical University of Munich, Klinikum rechts der Isar, Department of Urology and Institute of Clinical Chemistry | Munich |
Lead Sponsor | Collaborator |
---|---|
Technical University of Munich |
Germany,
Seitz AK, Thoene S, Bietenbeck A, Nawroth R, Tauber R, Thalgott M, Schmid S, Secci R, Retz M, Gschwend JE, Ruland J, Winter C, Heck MM. AR-V7 in Peripheral Whole Blood of Patients with Castration-resistant Prostate Cancer: Association with Treatment-specific Outcome Under Abiraterone and Enzalutamide. Eur Urol. 2017 Nov;72(5):828-834. doi: 10.1016/j.eururo.2017.07.024. Epub 2017 Aug 14. — View Citation
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Prostate-specific antigen (PSA) decline >=50% | The optimal liquid biopsy-based test method to predict PSA response under AR-targeted therapy will be determined. | 24 months | |
Secondary | Clinical progression-free survival | The optimal liquid biopsy-based test method to predict clinical progression-free survival under AR-targeted therapy will be determined. | 24 months | |
Secondary | Overall survival | The optimal liquid biopsy-based test method to predict overall survival under AR-targeted therapy will be determined. | 36 months |
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