This study is about checking the long-term safety of people who have received a special kind of treatment called Adoptive Cell Therapy (ACT). This treatment involves using your own cells to help fight diseases. People who have received this treatment will be monitored for up to 15 years to ensure they're safe. The study does not provide any additional treatment; it just keeps an eye on the health of participants after they have had the therapy.

Here's what you need to know:

• The study lasts for up to 15 years after the treatment.
• Participants don't receive any new treatments, just safety checks.
• There are no specific risks mentioned, but regular health checks are part of the study.

To join, you must have had at least one dose of the therapy and completed a related study or treatment. You also need to agree to use birth control if needed and provide consent. There are no exclusion criteria, meaning most who meet the inclusion criteria can participate.