<qa>  What is the oral VS 4718 BID starting on Day 1 of Cycle 1?- Cohort 1: IV treatment in 28-day cycles nab-paclitaxel 125 mgm2 over 30 minutes on Days 1, 8, and 15 and gemcitabine at 1000 mgm2 over 30 minutes on Days 1, 8, and 15 and oral VS 4718 BID continuously starting on Day 1 of Cycle 1 