Yousef Zakharia, M.D.

The purpose of this study is an open-label, dose-escalation, and safety expansion study of an anti-LILRB2 / PD-L1 bispecific antibody SPX- 303 in patients with solid tumors. Part 2 of this study is an indication-specific dose expansion study of SPX-303.

The purpose of part one of this study is to determine the maximum tolerated dose (MTD), dose-limiting toxicities (DLTs), and safety profile of Q901 monotherapy when administered via intravenous (IV) infusion once-weekly (QW) for 4 weeks and once every 2 weeks (Q2W) thereafter. Also, to establish for future clinical development the recommended Phase 2 dose (RP2D) of Q901 monotherapy when administered via IV infusion QW for 4 weeks and Q2W thereafter. 

The purpose of part two of this study is to evaluate safety and tolerability and evidence of anticancer activity of Q901 as monotherapy and in combination with pembrolizumab. In Part 2 Cohort 1, an expansion phase at the established RP2D will be undertaken in participants with selected advanced solid tumors. In Part 2 Cohort 2, a safety run in and expansion phase will be undertaken with Q901 at the RP2D administered in combination with pembrolizumab (400 mg Q6W) in participants with advanced solid tumors.

The purpose of this study is to determine if a new molecule that targets natural killer (NK) cells and T-cell activation signals to specific receptors on cancer cells. The study will occur in two phases. The first phase will be a dose escalation phase, enrolling patients with various types of solid tumors that express epidermal growth factor receptor (EGFR). A combination therapy cohort will be opened for enrollment, DF9001 + nivolumab. The second phase will include a dose expansion using the best dose selected from the first phase of the study. Multiple cohorts will be opened with eligible patients having selected solid tumors.