In patient with upper esophageal SCC who had partial response to neoadjuvant chemoradiation but deemed not to be a surgical candidate, would you recommend chemotherapy or nivolumab?

Once again, there's no clear answer to these head scratchers. For the purpose of answering this question, I will assume that the patient has a locally persistent tumor s/p definitive chemoradiation and is medically inoperable.

In that case, the first issue to consider is whether there is a role for m...