SCIB1 and iSCIB1+ in Melanoma Patients Receiving Nivolumab With Ipilimumab or SCIB1 With Pembrolizumab (The SCOPE Study)

The purpose of this study is to find out if two new treatment cancer vaccines called SCIB1 and iSCIB1+ can be used safely when added to nivolumab (Opdivo) with ipilimumab (Yervoy), or SCIB1 with pembrolizumab (Keytruda). Pembrolizumab or nivolumab with ipilimumab are standard treatments approved for patients with advanced melanoma (skin cancer). The study will also look to see if SCIB1 or iSCIB1+ can increase the likelihood that melanoma patients will respond to the standard treatments, and also if SCIB1 and iSCIB1+ can help to make those responses last longer. SCIB1 and iSCIB1+ are considered experimental. SCIB1 has been given to melanoma patients in an earlier study. It was generally well-tolerated, and researchers saw some signs that it may help to stimulate the immune system, which is a way in which the body can fight the cancer. iSCIB1+ is similar to SCIB1 but might benefit more patients with melanoma.

This is an open label, single arm Phase 2 study to determine the response rate and safety and tolerability of SCIB1 or iSCIB1+ when added to nivolumab (Opdivo) with ipilimumab (Yervoy) or SCIB1 with pembrolizumab (Keytruda). Pembrolizumab or nivolumab with ipilimumab are standard treatments already approved for the treatment of advanced melanoma. The plan for this study is for SCIB1 or iSCIB1+ to be given up to 11 times for 85 weeks, in combination with nivolumab with ipilimumab or SCIB1 with pembrolizumab. The standard treatments will be given according to the current label. The SCIB1 or iSCIB1+ injection will be given using PharmaJet needle-free injection device systems in the upper arm or upper leg. Before treatment starts and after consent has been given, all patients will undergo screening tests (to be completed within 28 days of treatment initiation) to ensure the patient is eligible to take part. Over the 85-week treatment period, the patient will visit the hospital multiple times and have some telephone/video calls. The evaluations and procedures that will be carried out at each visit are all detailed in the study information sheets given to the patient before consent is taken.