Bispecific antibodies

TargetDrugTrial, phaseOutcomes
c-Met/EGFRAmivantamabCHRYSALIS [68]
N = 45, osimertinib-relapsed EGFRm
Phase 1/1B
ORR 36%
DOR 9.6 mo
mPFS 4.9 mo
MARIPOSA-2 [76] (CT vs. plus CT vs. plus lazertinib-CT)
N = 263 vs. 131 vs. 263
Phase 3
CT alone vs. plus CT vs. plus Lazertinib-CT:
ORR 36% vs. 64% vs. 63%
DOR 5.6 vs. 6.9 vs. 9.4 mo
mPFS 4.2 vs. 8.2 vs. 8.3 mo
PD-L1/VEGFIvonescimab (AK112)NCT05184712 [77] (AK112 vs. CT)
N = 161 vs. 161
Phase 3
AK112 vs. CT:
mPFS 7.1 mo vs. 4.8 mo
HER3/EGFRBL-B01D1NCT05194982 [78] (EGFR-WT vs. EGFRm)
N = 50 vs. 38
Phase 1 (ongoing)
EGFR-WT vs. EGFRm:
ORR 44% vs. 63.2%
mPFS 5.2 mo vs. 6.9 mo (immature)
DCR 94% vs. 89.5%
Izalontamab (SI-B001)NCT05020457 [79]
N = 45, SI-B001 plus doecetaxel
Phase 2 (ongoing)
ORR 31.3%
DCR 77.1%

ORR: overall response rate; DOR: duration of response; mPFS: median progression-free survival; DCR: disease control rate; EGFRm: EGFR-mutated; EGFR-WT: EGFR wild type; CT: chemotherapy; HER3: human epidermal growth factor receptor 3