Lentiviral-Based CAR T-Cell Therapy is a type of treatment that uses a patient’s own immune cells, which are modified in the laboratory to better recognize and attack cancer cells. This therapy involves collecting T-cells from the patient, altering them with a lentivirus to express a chimeric antigen receptor (CAR) on their surface, and then infusing them back into the patient. The CAR helps the T-cells to identify and destroy cancer cells more effectively. This clinical trial is focused on the long-term follow-up of patients who have received this therapy to monitor for any delayed adverse effects that might occur after the treatment.

Secondary Malignancies – These are new cancers that occur in patients who have previously been treated for another cancer. They can develop months or even years after the initial cancer treatment. The risk of secondary malignancies can be influenced by the type of treatment received, such as chemotherapy or radiation. These malignancies can vary in type and severity, and their development is often monitored in patients with a history of cancer treatment.

Serious Infections – These are infections that can cause significant health problems and may require medical intervention. They can occur when the immune system is weakened, such as after certain medical treatments like CAR T-cell therapy. Serious infections can affect various parts of the body, including the lungs, skin, and bloodstream. The progression of these infections can be rapid, necessitating prompt medical attention.

Serious Neurologic Disorders – These are conditions that affect the nervous system, potentially leading to symptoms such as seizures, confusion, or difficulty with movement. They can arise as a complication of medical treatments or due to other underlying health issues. The progression of neurologic disorders can vary widely, with some conditions developing suddenly and others worsening over time.

Rheumatologic or Autoimmune Disorders – These disorders occur when the immune system mistakenly attacks the body’s own tissues, leading to inflammation and damage. They can affect joints, skin, and other organs, causing symptoms like pain, swelling, and fatigue. The progression of these disorders can be unpredictable, with periods of flare-ups and remission.

Hematologic Disorders – These are conditions that affect the blood and its components, such as red blood cells, white blood cells, and platelets. They can lead to symptoms like fatigue, bleeding, or increased risk of infections. Hematologic disorders can be caused by genetic factors, environmental exposures, or as a side effect of medical treatments.