Educational content on VJOncology is intended for healthcare professionals only. By visiting this website and accessing this information you confirm that you are a healthcare professional.

Share this video  

ESMO 2025 | PSMA expression as a key predictor of response to PSMA lutetium therapy

Bertrand Tombal, MD, PhD, Université catholique de Louvain, Ottignies-Louvain-la-Neuve, Belgium, discusses the importance of PSMA expression in determining the effectiveness of PSMA lutetium treatment in prostate cancer. A high level of PSMA expression is crucial for a positive response, and monitoring patients with PSMA PET CT and quantitative measurements is essential to guiding the optimal timing of starting PSMA therapy. The level of PSMA expression is also more important than the timing of treatment, and patients with weak PSMA expression are unlikely to be good responders. This interview took place at the European Society for Medical Oncology (ESMO) 2025 Congress in Berlin, Germany.

These works are owned by Magdalen Medical Publishing (MMP) and are protected by copyright laws and treaties around the world. All rights are reserved.

Transcript

I think, first observation, it’s going to play a major role. Major role. But we learn about the treatment. And what we started initially was that it was just about having positive or negative PSMA lesions. Meaning, if you had more than a certain amount of PSMA negative lesions, you would not be a good candidate. More and more, we learned that it’s not only about PSMA positive, negative, but about how positive are you? So that in order to be a good candidate for PSMA lutetium, you need a high level of PSMA expression...

I think, first observation, it’s going to play a major role. Major role. But we learn about the treatment. And what we started initially was that it was just about having positive or negative PSMA lesions. Meaning, if you had more than a certain amount of PSMA negative lesions, you would not be a good candidate. More and more, we learned that it’s not only about PSMA positive, negative, but about how positive are you? So that in order to be a good candidate for PSMA lutetium, you need a high level of PSMA expression. You should not believe that somebody with a weak expression of PSMA will be a good responder. So that I believe is the most important. I think it’s more important than the timing at which you give it. I mean, to me, you should give it when you got that high expression. Maybe it’s in the metastatic or more naive setting. Maybe it’s early CRPC. Maybe it’s late CRPC. That that’s a very important message because it puts the monitoring of these patients by subsequent PSMA PET CT and maybe some quantitative measurement respect as central to the monitoring of these patients so today monitoring patients with metastatic CRPC and even some metastatic hormone naïve with PSMA PET has become central because that’s going to guide the optimal timing of starting your PSMA therapy.

This transcript is AI-generated. While we strive for accuracy, please verify this copy with the video.

Read more...