Surface Oncology announced that the first patient has been dosed in its Phase 1/2 clinical study investigating SRF114, a potential best-in-class, fully human, afucosylated anti-CCR8 antibody, as a monotherapy in patients with advanced solid tumors. The Phase 1/2 trial is an open-label, first-in-human, dose-escalation and expansion study of SRF114 as a monotherapy in patients with advanced solid tumors that will be conducted in two parts. Part A, the monotherapy dose-escalation portion of the study, will evaluate the safety, tolerability, pharmacokinetics, pharmacodynamics, and preliminary efficacy of SRF114 in patients with advanced solid tumors.

Once Part A is completed, Part B will evaluate SRF114 in up to 40 patients with head and neck squamous cell carcinoma (HNSCC) as a monotherapy. Surface expects to provide initial clinical data in 2024.