Efficacy and safety of 177Lu-labeled prostate-specific membrane antigen radionuclide treatment in patients with diffuse bone marrow involvement: a multicenter retrospective study

The 177Lu-labeled prostate-specific membrane antigen (LuPSMA) radionuclide therapy for metastatic castration-resistant prostate cancer is under investigation in a phase III trial (VISION: NCT03511664). However, patients with diffuse bone involvement, diagnosed with a “superscan” by bone scintigraphy...

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Hauptverfasser: Gafita, Andrei (VerfasserIn) , Fendler, Wolfgang P. (VerfasserIn) , Hui, Wang (VerfasserIn) , Sandhu, Shahneen (VerfasserIn) , Weber, Manuel (VerfasserIn) , Esfandiari, Rouzbeh (VerfasserIn) , Calais, Jeremie (VerfasserIn) , Rauscher, Isabel (VerfasserIn) , Rathke, Hendrik (VerfasserIn) , Tauber, Robert (VerfasserIn) , Delpassand, Ebrahim S. (VerfasserIn) , Weber, Wolfgang A. (VerfasserIn) , Herrmann, Ken (VerfasserIn) , Czernin, Johannes (VerfasserIn) , Eiber, Matthias (VerfasserIn) , Hofman, Michael S. (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 10 June 2020
In: European urology
Year: 2020, Jahrgang: 78, Heft: 2, Pages: 148-154
ISSN:1873-7560
DOI:10.1016/j.eururo.2020.05.004
Online-Zugang:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.eururo.2020.05.004
Verlag, lizenzpflichtig, Volltext: http://www.sciencedirect.com/science/article/pii/S0302283820303444
Volltext
Verfasserangaben:Andrei Gafita, Wolfgang P. Fendler, Wang Hui, Shahneen Sandhu, Manuel Weber, Rouzbeh Esfandiari, Jeremie Calais, Isabel Rauscher, Hendrik Rathke, Robert Tauber, Ebrahim S. Delpassand, Wolfgang A. Weber, Ken Herrmann, Johannes Czernin, Matthias Eiber, Michael S. Hofman

MARC

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245 1 0 |a Efficacy and safety of 177Lu-labeled prostate-specific membrane antigen radionuclide treatment in patients with diffuse bone marrow involvement  |b a multicenter retrospective study  |c Andrei Gafita, Wolfgang P. Fendler, Wang Hui, Shahneen Sandhu, Manuel Weber, Rouzbeh Esfandiari, Jeremie Calais, Isabel Rauscher, Hendrik Rathke, Robert Tauber, Ebrahim S. Delpassand, Wolfgang A. Weber, Ken Herrmann, Johannes Czernin, Matthias Eiber, Michael S. Hofman 
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520 |a The 177Lu-labeled prostate-specific membrane antigen (LuPSMA) radionuclide therapy for metastatic castration-resistant prostate cancer is under investigation in a phase III trial (VISION: NCT03511664). However, patients with diffuse bone involvement, diagnosed with a “superscan” by bone scintigraphy at baseline, were excluded due to a lack of efficacy and safety data. We therefore aimed to investigate the feasibility of LuPSMA in patients with diffuse bone marrow involvement on baseline PSMA-targeted positron emission tomography. The primary end points were prostate-specific antigen (PSA) response (Prostate Cancer Working Group 3 [PCWG3]), hematologic safety profile (Common Terminology Criteria for Common Adverse Events [CTCAE]), and overall survival. Secondary end points of quality of life (assessed with Brief Pain Inventory-Short Form questionnaires) and radiologic response (Response Evaluation Criteria in Solid Tumors [RECIST]) were assessed. Through retrospective screening of databases, we identified 43 eligible patients across four centers worldwide who received 154 cycles of LuPSMA under clinical trials or compassionate access programs. Median baseline PSA was 1000 (interquartile range 431-2151) ng/ml. PSA decline of at least 50% at 12 wk was achieved in 22 (58%) patients, while median time to pain progression was 8.3 (95% confidence interval [CI] 4.1-12.6) mo. Median overall survival was 11.6 (95% CI 8.8-14.3) mo. Objective response in nodal or visceral disease was reported in seven (39%) of 18 patients with RECIST measurable disease. Grade 3 anemia, thrombocytopenia, and neutropenia occurred in nine (22%), seven (17%), and three (8%) patients, respectively. Grade 4 thrombocytopenia was noticed in three (8%) patients. In conclusion, patients with diffuse bone marrow involvement demonstrated similar LuPSMA efficacy and safety to phase II evidence. Acceptable safety outcomes do not support exclusion of patients with a superscan from future LuPSMA treatment protocols. - Patient summary - In this report, we investigated the feasibility of prostate-specific membrane antigen (PSMA)-directed radionuclide treatment in patients with metastatic castration-resistant prostate cancer and diffuse bone involvement. We found that, despite a high load of bone metastases, PSMA-targeted therapy remains efficacious and safe when compared with the current phase II trial results. 
650 4 |a Bone marrow involvement 
650 4 |a Lu-labeled prostate-specific membrane antigen 
650 4 |a Metastatic castration-resistant prostate cancer 
650 4 |a Prostate-specific membrane antigen 
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