Biotechnology French biotech company Transgene , which develops virus-based immunotherapies for the treatment of cancer, and NEC Bio, a wholly owned subsidiary of NEC Corporation, a leader in IT, network and AI technologies, have signed a license agreement to advance the clinical development of TG4050, an individualized neoantigen therapeutic vaccine (INTV) in the adjuvant treatment of resected HPV-negative head and neck cancer. s 3 April 2026