Chemotherapy vs Immunotherapy vs Targeted Therapy: What’s the Difference?
A 2026 Flagship Evidence-Based Guide to Modern Cancer Treatment Cancer treatment is no longer one-dimensional. For decades, chemotherapy dominated oncology. Credit: Statista Today, treatment may include chemotherapy, targeted therapy, immunotherapy — or carefully designed combinations of all three. Yet confusion persists. Patients often ask: Is chemotherapy outdated? Is immunotherapy safer? Is targeted therapy more effective? Why do some people respond dramatically while others do not? This flagship guide explains the science, clinical evidence, benefits, risks, and real-world decision-making framework behind modern oncology — grounded in standards used by the National Comprehensive Cancer Network and the American Society of Clinical Oncology. Executive Overview Chemotherapy, targeted therapy, and immunotherapy differ in: Biological mechanism Selectivity Side effect profiles Durability of response Patient selection criteria Each plays a distinct role in modern cancer care. N...