This study is testing a new medicine called AZD0486 for people with **B-cell Acute Lymphoblastic Leukemia** (B-ALL), a type of blood cancer. It's for patients whose cancer has returned or didn't get better after 2 or more treatments. The study has 3 parts: finding the right dose (Part A), adjusting the dose (Part B), and testing the dose (Part C). Participants should be 16 years or older for Part A, and 12 years or older for Parts B and C. The study checks how safe and effective AZD0486 is.
- The study requires multiple visits to the clinic.
- There might be side effects from the medicine.
- Participants won't receive any other cancer treatments during the study.
People with certain brain issues or other cancers can't join. Also, if you've had specific cancer treatments recently, you may not qualify. Participants will be closely monitored, and the study aims to find the best dose that works safely. Make sure to talk with your doctor to see if joining this study is right for you.