https://www.selleckchem.com/pr....oducts/serotonin-hcl
CA19-9 responses were categorized as 1) Always normal [n=6]; 2) Poor response [n=31]; 3) Unsustained response [n=19]; and 4) Sustained response [n=48]. Median overall survival for Groups 1-4 were 58, 16, 20, and 38 months respectively (p= less then 0.0001). CONCLUSION Patients with initially elevated CA19-9 levels who do not have a decline to a sustained low level are at risk for progression, recurrence, and poor survival. Alternative treatment strategies prior to an attempt at curative resection should be considered in this cohor