Clinical Study of Oncolytic Virus in Glioblastoma

This clinical trial aims to evaluate whether an oncolytic viral agent can treat recurrent glioblastoma. It will also assess the safety and tolerability of the oncolytic viral agent. The primary question it seeks to answer is: What medical problems do participants experience when injected with the oncolytic viral agent? Researchers will administer the oncolytic viral agent via intratumoral injection to determine its efficacy in treating recurrent glioblastoma. Participant Procedures: Receive the initial injection, followed by additional injections every 2-4 weeks for a total of 6 injections. Undergo physical examinations and tests every 2 to 4 weeks. Record their symptoms, hematological test results, and imaging findings.