The purpose of this study is to find out more information about the study drug iloprost for the treatment of symptomatic Raynaud's phenomenon (RP) attacks in people with scleroderma. A Raynaud's attack is defined as one where you notice at least one color change of your finger(s) (blue, white, or red) associated with at least one symptom (pain, numbness, tingling, and/or discomfort of the finger[s]). Your participation in this study will last approximately 9 weeks and will include 8 visits to the study center and 1 phone call from the study staff.

This study is for patients that have been diagnosed with stage III-IVB Head and Neck cancer. The investigational drug in this study is MEDI4736 (Durvalumab). The purpose of the safety lead-in portion of the study is to determine whether adding the study drug MEDI4736 to radiation is safe in patients with head and neck cancer who cannot take the drug cisplatin. The purpose of the phase II/III portion is to compare any good and bad effects of usual radiation plus the study treatment, MEDI4736 (durvalumab), to the usual therapy of radiation plus cetuximab in patients with head and neck cancer who cannot take the drug cisplatin. Participants in the safety lead-in portion can expect to be in this study for approximately 2.5 years. Participants in the Phase II/III portion can expect to be in the study for up to 32 weeks, and then followed by their study doctor to monitor for side effects every year.