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037 | _ | _ | |a FZJ-2020-01701 |
082 | _ | _ | |a 610 |
100 | 1 | _ | |a Dietlein, Felix |0 P:(DE-HGF)0 |b 0 |
245 | _ | _ | |a An 18 F-Labeled PSMA Ligand for PET/CT of Prostate Cancer: First-in-Humans Observational Study and Clinical Experience with 18 F-JK-PSMA-7 During the First Year of Application |
260 | _ | _ | |a New York, NY |c 2020 |b Soc. |
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520 | _ | _ | |a In preclinical trials, the recently developed tracer 2-methoxy-18F-DCFPyL (18F-JK-prostate-specific membrane antigen [PSMA]-7) has shown favorable properties regarding clinical performance and radiochemical accessibility. The aim of this study was to evaluate the clinical utility of 18F-JK-PSMA-7 for PET/CT imaging of patients with prostate cancer. Methods: In an Institutional Review Board–approved pilot study, the initial clinical utility of PET/CT imaging with 18F-JK-PSMA-7 was directly compared with 68Ga-PSMA-11 PET/CT in a group of 10 patients with prostate cancer. The 2 PSMA tracers were administered to each patient less than 3 wk apart. Next, we analyzed the data of 75 consecutive patients who had undergone clinical 18F-JK-PSMA-7 PET/CT imaging for tumor localization of biochemical recurrence (BCR). Results: The pilot study in 10 patients who were examined with both PSMA tracers demonstrated that 18F-JK-PSMA-7 was at least equivalent to 68Ga-PSMA-11. All unequivocally 68Ga-PSMA-11–positive lesions could be also detected using 18F-JK-PSMA-7, and in 4 patients additional suspected PSMA-positive lesions were identified (1 patient changed from PSMA-negative to PSMA-positive). In patients with BCR (after prostatectomy or radiotherapy), the capacity of 18F-JK-PSMA-7 PET/CT to detect at least one PSMA-positive lesion was 84.8%. The prostate-specific antigen (PSA)–stratified detection rate of 18F-JK-PSMA-7 after prostatectomy varied among 54.5% (6/11 patients; PSA < 0.5 μg/L), 87.5% (14/16 patients; PSA 0.5–2 μg/L), and 90.9% (20/22 patients; PSA > 2 μg/L). Conclusion: The tracer 18F-JK-PSMA-7 was found to be safe and clinically useful. We demonstrated that 18F-JK-PSMA-7 was not inferior when directly compared with 68Ga-PSMA-11 in a pilot study but indeed identified additional PSMA-avid suspected lesions in oligometastasized patients with BCR. In a subsequent analysis of a clinical cohort of BCR patients, 18F-JK-PSMA-7 was useful in tumor localization. 18F-JK-PSMA-7 is recommended for future prospective trials. |
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700 | 1 | _ | |a Hohberg, Melanie |0 P:(DE-HGF)0 |b 1 |
700 | 1 | _ | |a Kobe, Carsten |0 P:(DE-HGF)0 |b 2 |
700 | 1 | _ | |a Zlatopolskiy, Boris D. |0 P:(DE-Juel1)176188 |b 3 |u fzj |
700 | 1 | _ | |a Krapf, Philipp |0 P:(DE-Juel1)169356 |b 4 |u fzj |
700 | 1 | _ | |a Endepols, Heike |0 P:(DE-Juel1)180330 |b 5 |u fzj |
700 | 1 | _ | |a Täger, Philipp |0 P:(DE-HGF)0 |b 6 |
700 | 1 | _ | |a Hammes, Jochen |0 P:(DE-HGF)0 |b 7 |
700 | 1 | _ | |a Heidenreich, Axel |0 P:(DE-HGF)0 |b 8 |
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700 | 1 | _ | |a Drzezga, Alexander |0 P:(DE-Juel1)177611 |b 10 |u fzj |
700 | 1 | _ | |a Dietlein, Markus |0 P:(DE-HGF)0 |b 11 |e Corresponding author |
773 | _ | _ | |a 10.2967/jnumed.119.229542 |g Vol. 61, no. 2, p. 202 - 209 |0 PERI:(DE-600)2040222-3 |n 2 |p 202 - 209 |t Journal of nuclear medicine |v 61 |y 2020 |x 2159-662X |
856 | 4 | _ | |u https://juser.fz-juelich.de/record/874917/files/J%20Nucl%20Med-2020-Dietlein-202-9-1.pdf |
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