Delytact (teserpaturev)

Despite the recent regulatory approvals of oncolytic viruses such as T-VEC (JS1/34.5-/47-/GM-CSF), Oncorine (H101), and Teserpaturev (G47Δ), the clinical impact of OV remains limited by its reliance on intratumoral administration. Preclinical studies demonstrate that FusOn-SD efficiently reaches tumor sites following systemic administration, exhibiting enhanced immune evasion and oncolytic potency. These findings position FusOn-SD as a promising candidate for advancing OV beyond localized injections, with the potential to transform virotherapy into a viable treatment for metastatic cancer.

We investigate the usefulness of administering G47Δ (teserpaturev), a triple-mutated oncolytic herpes simplex virus type 1, prior to resection...G47Δ therapy caused increased number of tumor-infiltrating CD8 and CD4 cells, increased F4/80 cells within the residual tongues, and increased expression of immune-related genes in and around the tumor. These results imply that neoadjuvant use of G47Δ is useful for preventing local recurrence after tongue cancer surgery.

"Delytact" is a viral-gene therapy that targets malignant brain tumors, such as malignant gliomas, while "Stemirac" targets against spinal contusion via self-mesenchymal implantation. Both are permitted clinical arsenals in Japan.