Biobank and Register of Patients With Agresive Tumors for Translational and Analytical Research

This study is building a biobank and registry — a collection of biological samples and health data — from patients with aggressive solid tumors receiving systemic treatment. The goal is to support future cancer research by providing samples for laboratory analysis, helping scientists better understand how tumors respond to treatment and develop new therapies. **You may be eligible if:** - You have a confirmed solid tumor (cancer confirmed by biopsy) - You are currently receiving systemic therapy (such as chemotherapy, immunotherapy, or targeted therapy) for your cancer - You have archival tumor tissue available - You are willing to provide blood and/or tissue samples **You may NOT be eligible if:** - You have a lymphoma or leukemia (blood cancer) - You have previously had a stem cell or bone marrow transplant - You have a known immune deficiency disorder or are taking immunosuppressive drugs for another condition - You are pregnant Talk to your doctor to see if this trial is right for you.