This clinical trial is focused on studying a treatment for people with advanced solid tumors. Solid tumors are a type of cancer that forms in solid organs or tissues, such as the breast, lung, or prostate. The treatment being tested in this study is called MK-3120, which is a solution given by injection or infusion. The main goal of the study is to evaluate the safety and tolerability of MK-3120 when used alone.
Participants in the study will receive MK-3120 to see how their bodies respond to the treatment. The study will monitor the number of participants who experience any side effects and those who may need to stop the treatment due to these effects. Additionally, the study will look at how well the treatment works by measuring the response rate, how long the response lasts, and the overall survival of participants. The study will also track how the drug moves through the body, including its concentration levels over time.
This study is open-label, meaning both the researchers and participants know what treatment is being given. It is designed to help understand the potential benefits and risks of MK-3120 for people with advanced solid tumors who have already tried other treatments without success. The study is expected to continue until early 2028, with recruitment starting in 2025.



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