AJMC , 22 JULY 2025 : IS A NEW ERA OF SCLC TREATMENTS ON THE HORIZON .
One of the most significant developments has been the targeting of delta-like ligand 3 (DLL3), a protein highly expressed in both SCLC and LCNEC .
TARLATAMAB ( IMDELLTRA; AMGEN ), a DLL3-targeting bispecific T-cell engager (BiTE), received the green light from the FDA for use in previously treated patients with extensive-stage SCLC in 2024 .
The Accelerated approval was based on results from the phase 2 DeLLphi-301 study, showing an overall response rate (ORR) of 40% in patients who had received 2 or more prior lines of treatments .
The BiTE is currently being assessed in several PHASE III TRIALS, including DeLLphi-304, DeLLphi-305, and DeLLphi-306 .
THESE TRIALS AIM TO ASSESS TARLATAMAB BOTH AS A MONOTHERAPY AND IN COMBINATION WITH THE PD-L1 INHIBITOR DURVALUMAB ( IMFINZI; ASTRAZÉNECA ), IN PRVIOUSLY TREATED AND MAINTENANCE SETTINGS . ...