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ASCO 2025 | Assessing combination claudin 18.2-targeted therapies in GEA

Filip Van Herpe, MD, KU Leuven, Leuven, Belgium, comments on the potential of combining claudin 18.2-directed therapy with checkpoint inhibition and HER2-directed therapy in gastroesophageal adenocarcinoma (GEA), highlighting the need to balance efficacy with cost-effectiveness in a first-line setting. Ongoing trials, such as the LUCERNA trial (NCT06901531), will provide valuable insights into the added value of zolbetuximab in these combinations. This interview took place during the 2025 American Society of Clinical Oncology (ASCO) Meeting in Chicago, IL.

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Transcript

So I do believe that combining claudin 18.2-directed therapy with checkpoint inhibition, this is already an ongoing trial, in the LUCERNA trial, this could be very interesting to see what the added value of zolbetuximab will be in that setting in a CPS higher population. And secondly, I do think that combining HER2-directed therapy with anti-CLDN-directed therapy like PI3K-specific targets can be of interest...

So I do believe that combining claudin 18.2-directed therapy with checkpoint inhibition, this is already an ongoing trial, in the LUCERNA trial, this could be very interesting to see what the added value of zolbetuximab will be in that setting in a CPS higher population. And secondly, I do think that combining HER2-directed therapy with anti-CLDN-directed therapy like PI3K-specific targets can be of interest. The only thing that we have to take into account is while we add more antibodies, costs will be incrementally high and then we have to be very careful not to give too many antibodies that the government cannot afford paying for all these antibodies in a first-line.

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Disclosures

Consulting or Advisory Role – Merck; Merck/Pfizer
Research Funding – Amgen; Amgen; Astellas Pharma