This clinical trial is focused on studying the effects of a new treatment for people with different types of solid tumors, which are abnormal masses of tissue that can occur in various parts of the body. The specific types of cancer being studied include hepatocellular carcinoma (a type of liver cancer), colorectal cancer (cancer of the colon or rectum), and endometrial cancer (cancer of the lining of the uterus), among others. The treatment being tested involves a combination of a new drug called E7386 and another anticancer medication known as Lenvima (lenvatinib). E7386 is taken in the form of a tablet, while Lenvima is provided as hard capsules.
The purpose of this study is to evaluate the safety and tolerability of E7386 when used with other anticancer drugs and to determine the best dose for future studies. Participants in the trial will receive the study medications over a period of up to 26 weeks. The study will monitor how the body responds to the treatment and any side effects that may occur. Participants will take the medications orally, meaning they will swallow them, and will be regularly checked by the study team to ensure their safety and to track the progress of their treatment.
Throughout the study, researchers will collect information on how well the treatment works in controlling the cancer, including measuring the size of the tumors and checking for any signs of cancer progression. The study will also look at how long participants live after starting the treatment and how long any positive effects of the treatment last. This information will help determine if the combination of E7386 and Lenvima is a promising option for treating solid tumors in future clinical trials.



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