scholarly journals 68 Ga‐PSMA‐PET/CT helps to select patients for salvage radical prostatectomy with local recurrence after primary radiotherapy for prostate cancer

2020 ◽  
Vol 126 (6) ◽  
pp. 679-683
Author(s):  
David Pfister ◽  
Friederike Haidl ◽  
Tim Nestler ◽  
Frederik Verburg ◽  
Matthias Schmidt ◽  
...  
Cancers ◽  
2021 ◽  
Vol 13 (19) ◽  
pp. 4982
Author(s):  
Carlos Artigas ◽  
Romain Diamand ◽  
Qaid Ahmed Shagera ◽  
Nicolas Plouznikoff ◽  
Fabrice Fokoue ◽  
...  

Metastasis-directed therapy (MDT) in oligometastatic prostate cancer has the potential of delaying the start of androgen deprivation therapy (ADT) and disease progression. We aimed to analyze the efficacy of PSMA-PET/CT in detecting oligometastatic disease (OMD), to look for predictive factors of OMD, and to evaluate the impact of PSMA-PET/CT findings on clinical management. We retrospectively analyzed a homogeneous population of 196 hormone-sensitive prostate cancer patients (HSPC), considered potential candidates for MDT, with a PSMA-PET/CT performed at biochemical recurrence (BCR) after radical prostatectomy (RP). Multivariable logistic regression analysis was performed based on several clinico-pathological factors. Changes in clinical management before and after PSMA-PET/CT were analyzed. The OMD detection rate was 44% for a total positivity rate of 60%. PSMA-PET/CT positivity was independently related to PSA (OR (95%CI), p) (1.7 (1.3–2.3), p < 0.0001) and PSAdt (0.4 (0.2–0.8), p = 0.013), and OMD detection was independently related to PSA (1.6 (1.2–2.2), p = 0.001) and no previous salvage therapy (0.3 (0.1–0.9), p = 0.038). A treatment change was observed in 58% of patients, mostly to perform MDT after OMD detection (60% of changes). This study showed that PSMA-PET/CT is an excellent imaging technique to detect OMD early in HSPC patients with BCR after RP, changing therapeutic management mostly into MDT.


2016 ◽  
Vol 34 (2_suppl) ◽  
pp. 299-299
Author(s):  
Michael A. Gorin ◽  
Steven P. Rowe ◽  
Margarita Mana-ay ◽  
Zsolt Szabo ◽  
Edward M. Schaeffer ◽  
...  

299 Background: Positron emission tomography/x−ray computed tomography (PET/CT) utilizing radiotracers targeting prostate membrane specific antigen (PSMA) offer the promise of improved sensitivity for visualizing low volume sites of prostate cancer. In this study we evaluated the sensitivity of PET/CT using 18F-DCFPyL, a novel small molecule ligand of PSMA, for imaging sites of disease in men with an elevated PSA following radical prostatectomy. Methods: Patients with an elevated PSA following radical prostatectomy (defined as ≥ 0.2 ng/mL) were imaged with CT or magnetic resonance imaging (MRI) of the abdomen and pelvis, 99mTc-methylene diphosphonate bone scan and 18F-DCFPyL PET/CT. Conventional imaging studies (CT, MRI and boen scan) were clinically reviewed by readers blinded to the PET/CT scan results. Similarly, PET/CT scans were blindly reviewed and then the sensitivity of this novel imaging test was compared to that of conventional imaging. Results: In total, 12 men with a median PSA of 0.34 ng/mL (range 0.2 to 11) were imaged as part of this study. 2 (16.7%) patients had persistently elevated PSA values after surgery and 10 (83.3%) had values which were initially undetectable but then rose to ≥ 0.2 ng/mL. On conventional imaging, only 4 (25.0%) patients had at least 1 detectable site of disease. This included 1 patient with a local recurrence detected on MRI and 3 patients with bony lesions detected on bone scan. In contrast, 9 (75.0%) patients had areas of detectable disease on PET/CT. This included 3 (25.0%) patients with a local recurrence, 3 (25.0%) with lymph node metastases, 2 (16.7%) with bony lesions and 1 (8.3%) with both lymph node and bone findings. All lesions detected on conventional imaging had corresponding areas of radiotracer uptake on PET/CT. Conclusions: 18F-DCFPyL PET/CT appears to be more sensitive for detecting areas of prostate cancer recurrence in patients with an elevated PSA following radical prostatectomy. Future work aims to more precisely define the sensitivity of this imaging test in a larger patient cohort. Clinical trial information: NCT02523924.


2005 ◽  
Vol 23 (32) ◽  
pp. 8198-8203 ◽  
Author(s):  
Andrew J. Stephenson ◽  
James A. Eastham

Patients with isolated local recurrence of prostate cancer after radiation therapy may potentially be cured of their disease by salvage radical prostatectomy (RP). The stage-specific 5-year cancer-control rates of salvage RP resemble those of standard RP. However, the ability to effectively administer salvage treatment to patients with radiorecurrent disease is compromised by the lack of diagnostic tests with sufficient sensitivity and specificity to detect local recurrence at an early stage while it is amenable to local salvage therapy. By the time biochemical recurrence is declared using the current American Society for Therapeutic Radiology and Oncology definition, the majority of patients have advanced local disease, precluding successful local salvage therapy. When salvage RP is performed at prostate-specific antigen levels of 10 ng/mL or less, an estimated 70% of patients are free of disease at 5 years. With better patient selection and technical modifications, the morbidity associated with salvage RP has improved substantially. Rates of urinary incontinence and anastomotic stricture are acceptable, although one third of patients will experience these complications. Salvage cryotherapy is a minimally invasive alternative to salvage RP, but cancer-control rates appear to be inferior and it does not provide a clear advantage over salvage RP in terms of reduced morbidity. Patients with local recurrence after radiation therapy are at increased risk of metastatic progression and cancer-specific mortality. Currently, salvage RP represents the only curative treatment option for these patients. Salvage RP may favorably alter the natural history of biochemical recurrence after radiation therapy, but it must be instituted early in the course of recurrent disease to be effective.


2017 ◽  
Vol 197 (4S) ◽  
Author(s):  
Tobias Maurer ◽  
Charlotte Düwel ◽  
Berhard Haller ◽  
Jürgen E. Gschwend ◽  
Markus Schwaiger ◽  
...  

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