How would you approach the treatment of checkpoint-inhibitor-mediated temporal arteritis?  

Temporal arteritis or GCA is a rare immune related adverse event due to immune checkpoint inhibitor (ICI) therapy. Corticosteroids are the first line treatment, along with holding the ICI. As there have been limited cases, there is not evidence for IVIG in this setting.

I agree; isolated cases with significant glucocorticoid adverse effects or evidence of additional large vessel involvement may require the addition of tocilizumab to obtain control of their disease.