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What initial systemic approach will you recommend for metastatic pMMR HER2- esophageal/GEJ/gastric adenocarcinoma with CPS of 0-4?

Do you view CPS < 1% or 1-4% separately? Do you view the incremental benefit of adding immunotherapy still advantageous given relatively poor outcomes with chemo alone in this disease?
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What initial systemic therapy will you offer for metastatic pMMR HER2- gastric adenocarcinoma w/ CPS of 0-4?

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3 Answers
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Medical Oncology · NYU School of Medicine
Answered on

In such patients, OS does not differ between chemotherapy alone and chemotherapy plus immunotherapy, therefore chemotherapy alone would be an appropriate choice. There is no difference in terms of OS benefit between CPS <1% or CPS 1 to 4%. The benefit that immunotherapy adds to chemotherapy is sligh...

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Medical Oncology · New York Presbyterian/Weill Cornell Medical Center
Answered on

Based on the totality of the data, it is clear to me with increasing CPS scores, our ability to enrich for sensitivity to checkpoint inhibition increases. It is also clear, based on a large sample set, that the patients on CheckMate 649 with CPS < 5 did not have an improved survival with the additio...

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Mednet Member
Mednet Member
Medical Oncology · City of Hope Comprehensive Cancer Care
Answered on

For a patient with a tumor that is PD-L1 CPS < 5, I would prescribe initial systemic therapy that ideally incorporates novel agents in the context of a clinical trial given the limitations of chemo alone in metastatic disease. On a case-by-case basis, I may add immunotherapy to chemotherapy in CPS <...

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