This study is looking at a condition called MTAP-deleted solid tumors, which refers to various types of cancer that have a specific genetic change where a gene called MTAP is missing. These tumors can occur in different parts of the body. The main treatment being tested is BAY 3713372, a new medicine taken by mouth in tablet form. This medicine is designed to work in a specific way against cancer cells that have this MTAP gene deletion. In some parts of the study, BAY 3713372 will be tested alone, while in other parts it will be combined with other cancer treatments. These other treatments may include medicines from groups called PD-1/PDL-1 inhibitors, which help the immune system fight cancer, pyrimidine analogues, platinum compounds, and plant alkaloids, which are different types of chemotherapy medicines that work in various ways to stop cancer cells from growing. Some participants may receive placebo.
The purpose of this study is to find out if BAY 3713372 is safe, how it affects the body, what side effects it may cause, and whether it can help treat these types of tumors. The study will also determine the right dose of this medicine to use, both when given alone and when combined with other cancer treatments. Additionally, researchers want to understand how the medicine moves through the body and how it may affect tumor growth.
The study will happen in two main parts. In the first part, called dose escalation, different doses of BAY 3713372 will be tested in small groups of people to find a safe and effective dose. Participants will be closely monitored for any side effects, and blood samples will be taken to measure the levels of the medicine in the body. In the second part, called dose expansion, a larger number of people with specific types of MTAP-deleted tumors will receive the selected dose of BAY 3713372, either alone or combined with other cancer treatments. Throughout the study, participants will have regular check-ups, scans to measure their tumors, and blood tests. The treatment is given in cycles, with each cycle lasting 21 days, and participants may continue treatment as long as it is helping them and not causing unacceptable side effects.



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