The Effect of Mandala on Anxiety and Fear Levels in Children With Leukemia Before Intrathecal Chemotherapy Treatment

This study is testing whether coloring mandala patterns (a mindfulness art activity) can help reduce anxiety and fear in children with leukemia who are about to receive chemotherapy injected into the spinal fluid (called intrathecal chemotherapy). The study is looking for a simple, drug-free way to help children feel calmer during treatment. **You may be eligible if...** - Your child is between 4 and 12 years old - Your child is currently being treated for leukemia at the pediatric hematology clinic - Your child has already received at least two intrathecal chemotherapy treatments - Your child has no other chronic illnesses or active infections - Your child has not developed psychological or mental health symptoms as a side effect of chemotherapy - You (the caregiver) speak Turkish and are willing to communicate with the study team **You may NOT be eligible if...** - Your child does not meet the above criteria - Your child is receiving treatment for a condition other than leukemia - You or your child are not willing to participate Talk to your doctor to see if this trial is right for you.