A First-in-human Study to Learn How Safe the Study Drug BAY3375968, an Anti-CCR8 Antibody, is, When Given Alone or in Combination With Pembrolizumab, How it Affects the Body, How it Moves Into, Through, and Out of the Body, and to Find the Best Dose in Participants With Advanced Solid Tumors

Study Summary

Researchers are looking for a better way to treat people who have advanced solid tumors. Advanced solid tumors are solid cancers that may have spread to nearby tissue, lymph nodes and/or to distant parts of the body and that are unlikely to be cured or controlled with currently available treatments. A new therapy available for advanced solid cancers is immunotherapy with PD-1/PD-L1 inhibitors. This drug class stimulates immune cells to kill cancer cells by blocking a protein called PD-1. Although PD-1/PD-L1 inhibitors have shown benefits in treatment of cancer, only a subset of patients benefit from the initial therapy, while in others the cancer comes back. One reason could be that the ability of the patients' immune systems to kill cancer cells is weakened by so-called regulatory T cells which have a suppressive effect on the immune system. The study treatment BAY3375968 is an antibody that binds to a protein called CCR8 which is located on the surface of regulatory T cells. This leads to a reduction in regulatory T cells and further inhibits their immune suppressive activity, so that the immune response against cancer can be strengthened as observed in animal models. Animal studies also showed that BAY3375968 may add more anti-cancer effect to immunotherapy with PD-1/PD-L1 inhibitors when used in combination. All of these previous observations need to be confirmed in humans. The main aims of this study are to find for BAY3375968 alone and in combination with pembrolizumab (a PD-1 inhibitor): * how safe it is * the degree to which overt medical problems caused by the treatment(s) can be tolerated * the highest amount of BAY3375968 that can be given alone or in combination with pembrolizumab. * how it moves into, through, and out of the body. To do this, researchers will collect and analyze data about: * the number and severity of participants' medical problems after taking their treatments * the best dose of BAY3375968 that can be given * the highest level i

Conditions Studied

Interventions

• DRUG Pembrolizumab
• DRUG BAY3375968

Study Locations (20)