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- W2967355800 abstract "Abstract Background In this prospective study (NCT03443609), we investigated the impact of 68Ga‐PSMA‐11 PET‐CT on the treatment plan and therapeutic response obtained for patients with prostate cancer (PCa) presenting a recurrence with a low rising PSA. Methods One hundred thirty hormone‐naive (PSA < 1.5 ng/mL) patients were enrolled. All patients received radical treatment. PET images were recorded 1 and 2 hours after injection of tracer and interpreted by two independent nuclear physicians. Six months after treatment ended, a PSA assay was requested to evaluate the therapeutic efficacy of the treatment based on PSMA results. Results Data analysis for the first 52 included patients has been completed. 68Ga‐PSMA‐11–positive lesions were detected in 38/52 (73.1%) patients. Ninety‐four lesions were detected as follows, 53/94 in lymph nodes (56.4%), 25/94 in bone (26.6%), and 12/94 into the prostate bed (12.7%). Detection rates were 58%, 81%, and 82% for serum PSA levels lower than 0.25 ng/mL, between 0.25 to ≤ 0.69 ng/mL and 0.70 ng/mL, respectively. As a result of the PSMA PET‐CT, therapeutic management changed in 38/52 patients (73.1%). Patients had undetectable serum PSA levels after treatment guided by 68Ga‐PSMA‐11 PET‐CT results in 10/52 (19.2%) cases and with a PSA decrease of over 60% in 18/52 (34.6%) patients. Conclusion Whilst our patient population presented a very low PSA level, preliminary results of the 68Ga‐PSMA PET‐CT study showed recurrence localization in more than half of the patients and this had a major clinical impact, as it resulted in treatment change in more than half of the patients and a significant decrease in PSA levels in a third of patients." @default.
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- W2967355800 date "2019-08-17" @default.
- W2967355800 modified "2023-10-18" @default.
- W2967355800 title "Preliminary results of a <sup>68</sup>Ga‐PSMA PET/CT prospective study in prostate cancer patients with occult recurrence: Diagnostic performance and impact on therapeutic decision‐making" @default.
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- W2967355800 doi "https://doi.org/10.1002/pros.23869" @default.
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