AKT-2602

A 55-year-old man presents with persistent epigastric discomfort for the past 2 months. The discomfort worsens after meals and occasionally causes reflux symptoms when he lies down. Despite attempting to modify his diet, he has only experienced limited relief and has lost some weight, although he is unsure of the exact amount. He denies any difficulty swallowing or vomiting blood. He has tried over-the-counter gaviscon with little effect and is seeking further relief. Physical examination is unremarkable, with no evidence of an abdominal mass.

What is the most appropriate course of treatment for this patient?