In the initial TILT-123 monotherapy phase of the trial, disease control is observed in 6/17 (35%) and 10/16 (63%) in CT and PET, respectively. The study demonstrates good tolerability and preliminary efficacy.
Clinical responses were associated with higher serum anti-adenovirus neutralizing antibody titer at baseline and post-treatment. The phase 1b investigating TILT-123, pembrolizumab and PEGylated liposomal doxorubicin in a similar patient population is underway.