The Types axis of market taxonomy classifies Immunotherapy Drugs into checkpoint inhibitors, CAR‑T cell therapies, cancer vaccines, cytokine therapies, oncolytic viruses, and antibody‑drug conjugates (ADCs). Checkpoint inhibitors, targeting PD‑1/PD‑L1 and CTLA‑4 pathways, remain the largest sub‑segment, accounting for roughly one‑third of global sales due to multiple approved indications and robust pipeline activity. CAR‑T cell therapies, although limited to hematologic malignancies, contribute about 20 % of the market, reflecting high price points and manufacturing complexity. Cancer vaccines, encompassing peptide‑based and dendritic‑cell platforms, hold approximately 10 % of revenue, driven by preventive and therapeutic strategies across several tumor types. Cytokine therapies such as interferons and interleukins represent 12 % of the market, offering broad immunomodulatory effects but constrained by safety profiles. Oncolytic viruses, a niche yet rapidly advancing area, account for roughly 8 % of sales, while ADCs, which combine targeting antibodies with cytotoxic payloads, contribute the remaining 20 %. Together, these type categories delineate the structural composition of the Immunotherapy Drugs market, highlighting where innovation intensity and commercial performance converge.