This study investigates an investigational medication to understand its safety, tolerability, and effects on tumors in children with cancer. The purpose is to determine the highest dose that can be given safely without causing serious side effects. The study will also examine how the medication is absorbed and broken down in the body, as well as its potential benefits for cancer treatment.
Participants will receive the investigational medication as a monotherapy. The study will monitor dose-limiting toxicities, which are side effects that prevent an increase in dosage. The goal is to establish the maximum tolerated dose or maximum administered dose.
- Who can participate: Children aged 6 months to less than 18 years with advanced or metastatic solid tumors or lymphoma can participate. They must have a condition that is incurable, has failed standard treatment, or lacks a standard treatment option.
- Study details: Participants will receive an investigational medication. The study will focus on monitoring safety and determining the appropriate dosage.

