Compared to chemotherapy alone, adebrelimab plus chemotherapy nearly doubled 2-year OS and more than tripled 1-year PFS in patients with extensive-stage SCLC, according to results presented earlier this month at the AACR Annual Meeting 2022. The phase 3 CAPSTONE-1 study evaluated adebrelimab in combination with carboplatin plus etoposide, as first-line treatment for ES-SCLC.