KB707 is a genetically modified herpes simplex type 1 virus that is designed to stimulate an anti-tumor immune response through the production of cytokines. This is a first-in-human (FIH) clinical study to evaluate the safety and tolerability, biodistribution, shedding, and preliminary efficacy of KB707 in adult subjects with advanced and/or refractory solid tumors. The study will include a dose escalation portion for single agent KB707 and an expansion portion to further evaluate single agent KB707 at a dose determined by preliminary data in the dose escalation phase.
Key Inclusion Criteria:
- Histologically confirmed diagnosis of a locally advanced or metastatic solid tumor and
the individual has progressed on standard of care therapy, cannot tolerate standard of
care therapy, refused standard of care therapy, or there is no standard of care
therapy.
- Age 18 years or older at the time of informed consent
- Life expectancy >12 weeks
- ECOG performance status of 0 or 1
- Have at least one measurable and injectable tumor that is accessible by transcutaneous
administration
Key Exclusion Criteria:
- Prior oncology therapy (chemotherapy, immunotherapy, biological therapy) or use of an
investigational agent or an investigational device within 21 days or 5 half-lives
before administration of first dose of KB707, whichever is shorter
- The subject is pregnant, nursing, or plans to become pregnant during study treatment
and through three months after the last dose of KB707
- Have known history of positive human immunodeficiency virus (HIV 1/2)