This phase Ib/II study of PO administered ARRY-614 in combination with checkpoint immunotherapy. In phase Ib, this includes ARRY-614 plus nivolumab or ARRY-614 + nivolumab+ipilimumab in patients with selected advanced solid tumors. In phase II, this includes ARRY-614 in combination with nivolumab in a combined cohort of NSCLC and HNSCCC as well as two arms with patients having either melanoma and RCC, where ARRY-614 will be combined with nivolumab+ipilimumab. The objective of the Ib phase is to determine the safety, tolerability and recommended phase II dose of ARRY-614 with either nivolumab or nivolumab+ipilimumab combination therapy. The objective of Phase II is to determine best ORR in the three separate phase II arms: ARRY-614 plus nivolumab+ipilimumab in melanoma or RCC as well as ARRY-614 plus nivolumab in a combined cohort of NSCLC and HNSCC. The recommended phase II dose will be informed by the phase Ib safety study of ARRY-614, the plasma PK of ARRY-614 and the metabolite, AR00451575, and the PD effects of ARRY-614 in pre and post dose peripheral blood samples.~In phase Ib, trial participants will take ARRY-614 continuously in 3- or 4-week cycles (± 3 days). Nivolumab and nivolumab+ipilimumab therapy will be dosed according to FDA-approved or compendium supported dosing schedule.~In phase II, a similar dosing schedule will be pursued once the recommended phase II dose of ARRY-614 has been determined with nivolumab or nivolumab +ipilimumab. ARRY-614 will be given on a daily PO schedule in 3- or 4-week cycles (± 3 days).
In this study, the Phase Ib portion aims to establish safety and tolerability of ARRY-614 with either nivolumab or ipilimumab and to determine a recommended phase II dose of ARRY-614 in combination with either nivolumab or nivolumab+ipilimumab immunotherapy in patients with selected advanced solid tumors. The Phase II portion will estimate the efficacy of ARRY-614 in combination with either nivolumab or ARRY-614 + nivolumab+ipilimumab immunotherapy in patients with with NSCLC, HNSCC, melanoma and RCC and melanoma.