Increased PSMA Expression in 177 Lu-PSMA-617 Scan in Metastatic Castrate-Resistant Prostate Cancer Patient Treated With PSMA Radioligand Therapy and Enzalutamide : A Potential Game-Changer.

Aggarwal, Piyush; Kaur, Komalpreet; Sood, Ashwani; Periasamy, Kannan; Nagi, Shreya; Mittal, Bhagwant Rai · Clin Nucl Med · 2023

case_report · Level V

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Abstract

Androgen deprivation therapy plays an integral role in the treatment algorithm of advanced prostate cancer. Enzalutamide has shown great benefit in castrate-sensitive as well as resistant prostate cancer. Few studies have shown that enzalutamide can potentially increase the PSMA expression on 68 Ga-PSMA-11 PET/CT imaging in patients with metastatic castrate-resistant prostate cancer. We present an interesting case where addition of short course of enzalutamide resulted in increased localization of 177 Lu-PSMA-617 in metastatic lesions on posttherapy scan pointing to the added benefit of PSMA RLT.

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