The combination of GFH018 and toripalimab showed a manageable toxicity profile and durable antitumor activity in R/M NPC patients, especially those without prior ICI exposure.
In murine tumor mouse models, either the monotherapy of GFH018 or the combination with an anti-PD-L1 antibody suppressed tumor growth, and potent inhibition of cancer cell migration in vivo was observed. Mechanistic studies revealed that GFH018 not only reactivated the immune system by blocking Treg- and M2 macrophage-mediated immunosuppression but also inhibited tumor vascular angiogenesis.
GFH018 monotherapy presented a favorable safety profile without cardiac toxicity or bleeding. Modest efficacy warrants further studies, including combination strategies.
GFH018 shows a favorable safety profile and preliminary anti-tumor activity. The clinical studies of GFH018 in combination with Toripalimab and with Toripalimab + concurrent chemoradiotherapy are ongoing. Clinical trial information: NCT05051241.
Conclusions GFH018 shows a favorable safety profile and is now being tested in combination with an anti-PD-1 antibody in patients with advanced malignancies. Further studies are warranted.