U-4212

TREATING METASTATIC SCLC AFTER PLATINUM CHEMOTHERAPY WITH LURBINECTEDIN MONOTHERAPY BY REDUCING THE DOSE FOR GRADE ≥3 HEPATOTOXICITY FROM 3.2 TO 2.6 MG/M2 AND 2.6 TO 2.0 MG/M2 LURBINECTEDIN WITHIN 35 DAYS OF THE HIGHER DOSE IF HEPATOTOXICITY ≤GRADE 1