Vir Biotechnology Inc.’s 2024 deal with Sanofi SA is starting to look like a pretty savvy move. The company, which picked up three clinical-stage dual-masked T-cell engagers (TCEs) and rights to the platform technology as part of a pipeline overhaul, reported phase I data for TCE programs targeting HER2 and PSMA that indicated promising efficacy with a low prevalence of the cytokine toxicity that has hampered other TCE programs.