TY - JOUR
T1 - Recurrence rate after radical prostatectomy following primary staging of high-risk prostate cancer with 68Ga-PSMA PET/CT
AU - Klingenberg, Søren
AU - Fredsøe, Jacob Hesselvig
AU - Sørensen, Karina Dalsgaard
AU - Ulhøi, Benedicte Parm
AU - Borre, Michael
AU - Jochumsen, Mads Ryø
AU - Bouchelouche, Kirsten
PY - 2022/11
Y1 - 2022/11
N2 - Background: Accurate primary staging is one of the most important issues for initial management of prostate cancer (PCa) patients to perform an optimal selection of patients for curative intended treatment. 68Ga-Prostate-Specific-Membrane-Antigen (PSMA) PET/CT was found superior to conventional imaging both for detection of recurrence after curative intended treatment and for primary staging. We studied the recurrence rate after radical prostatectomy in high-risk PCa patients primary staged with 68Ga-PSMA PET/CT compared with conventional imaging. Material and methods: The study included 247 D’Amico high-risk PCa patients treated with radical prostatectomy (RP) after primary staging with 68Ga-PSMA PET/CT and a reference group of 137 high-risk patients with RP after conventional imaging (99mTc bone scintigraphy and CT). Recurrence rates were assessed by Cox regression and Kaplan-Meier analysis. Results: The 5-year recurrence-free survival rate was 71.1% in the 68Ga-PSMA PET/CT cohort compared with 56.4% in the conventional imaging cohort. Primary staging by 68Ga-PSMA PET/CT reduced biochemical recurrence (BCR) risk by 42% (HR = 0.58 (0.41–0.83), p =.004). Conclusion: The present data could indicate a lower recurrence rate after RP following primary staging with 68Ga-PSMA PET/CT compared to conventional imaging, likely due to improved selection of patients for surgery.
AB - Background: Accurate primary staging is one of the most important issues for initial management of prostate cancer (PCa) patients to perform an optimal selection of patients for curative intended treatment. 68Ga-Prostate-Specific-Membrane-Antigen (PSMA) PET/CT was found superior to conventional imaging both for detection of recurrence after curative intended treatment and for primary staging. We studied the recurrence rate after radical prostatectomy in high-risk PCa patients primary staged with 68Ga-PSMA PET/CT compared with conventional imaging. Material and methods: The study included 247 D’Amico high-risk PCa patients treated with radical prostatectomy (RP) after primary staging with 68Ga-PSMA PET/CT and a reference group of 137 high-risk patients with RP after conventional imaging (99mTc bone scintigraphy and CT). Recurrence rates were assessed by Cox regression and Kaplan-Meier analysis. Results: The 5-year recurrence-free survival rate was 71.1% in the 68Ga-PSMA PET/CT cohort compared with 56.4% in the conventional imaging cohort. Primary staging by 68Ga-PSMA PET/CT reduced biochemical recurrence (BCR) risk by 42% (HR = 0.58 (0.41–0.83), p =.004). Conclusion: The present data could indicate a lower recurrence rate after RP following primary staging with 68Ga-PSMA PET/CT compared to conventional imaging, likely due to improved selection of patients for surgery.
KW - Ga-prostate-specific membrane antigen PET/CT
KW - biochemical recurrence
KW - primary staging
KW - prostate cancer
KW - radical prostatectomy
UR - http://www.scopus.com/inward/record.url?scp=85139610802&partnerID=8YFLogxK
U2 - 10.1080/0284186X.2022.2129442
DO - 10.1080/0284186X.2022.2129442
M3 - Journal article
C2 - 36199168
SN - 0284-186X
VL - 61
SP - 1289
EP - 1294
JO - Acta Oncologica
JF - Acta Oncologica
IS - 10
ER -