Zhenya experienced illness at the age of 1.5. Although treated as a normal acute respiratory viral infection, their fever persisted, vomiting, and pallor occurred. The boy was rushed to the Republican Scientific and Practical Center for Children's Oncology, Hematology and Immunology immediately after the tests and was diagnosed with acute lymphoblastic leukemia. During 5 years of severe treatment, there were three relapses. In 2019, a related transplant was performed, and after that, the child developed a chronic graft-versus-host reaction, mainly on the skin and joints. Zhenya has been treated with multiple methods of therapy, but has not been successful. In spring 2024, the boy began treatment with the drug Beluzumab (TN Res lesson). There has been a clear clinical improvement in recent months, mainly in the condition of the joints, as well as in the condition of the skin. Given the low effectiveness of previous lines of therapy, the child is shown to continue taking the drug. US$ 77,500 is needed to continue therapy.