Application-level Cancidas market taxonomy reflects three core indications: invasive candidiasis, oesophageal candidiasis, and prophylaxis of invasive aspergillosis. Invasive candidiasis generates the largest absolute demand, driven by ICU antifungal stewardship programs that favour echinocandins over azoles for documented or suspected azole-resistant Candida spp. Oesophageal use is smaller but steadier, linked to HIV-oncology crossover clinics. Prophylaxis in allogeneic stem-cell units, while low-volume, commands premium pricing due to lengthy induction regimens. Together, these applications delineate a patient-centric market where clinical guidelines, rather than labelled breadth, determine segment size.