Lineage Cell Therapeutics, Inc. announced encouraging primary and secondary endpoint results from the recently completed clinical study of VAC2 in advanced non-small cell lung cancer (NSCLC). The Phase 1 study was a first-in-human, open label, multi-center trial designed to investigate safety, immunogenicity, and survival in patients with advanced NSCLC (defined as metastatic or locally advanced disease) when administered the allogeneic dendritic cell (DC) vaccine VAC2 (NCT03371485). VAC2 DC cells have been engineered to present hTERT, a tumor-associated antigen found almost exclusively in cancer cells, and it is postulated that VAC2 will stimulate an immunogenic anti-tumor CD4+/CD8+ T cell response toward hTERT expressed on tumor cells.

All eight subjects enrolled and treated completed the full per protocol vaccination regimen, which consisted of six-consecutive weekly intradermal (ID) injections of 1 x 107 viable VAC2 cells. Overall, VAC2 was well-tolerated, there were no unexpected SAEs, and there were no dose limiting toxicities. On May 7th, 2020, Lineage completed an early exercise of its option to acquire data from Cancer Research UK and assumed responsibility for further development of the VAC2 product candidate as well as future development opportunities derived from the VAC platform, while Cancer Research UK?s Centre for Drug Development completed the clinical study in NSCLC.

Lineage is currently reviewing these data, as well as several tertiary and exploratory endpoint assessments, and will determine next steps to evaluate VAC2 following these analyses. Lineage, Cancer Research UK, and the participating investigators intend to present these data at future medical and scientific conferences and submit publications to relevant journals for peer review.