Gene therapy patients monitored for 15 years in safety Follow-Up

This study provides long-term follow-up for people who previously received gene therapy or other immunotherapy for cancers like prostate, liver, breast, colon, or lung cancer. Participants will have annual health check-ups or phone calls for up to 15 years to monitor for any long-term side effects. The goal is to track health status and ensure safety, not to test a new treatment.