The Anti-Cathepsin B segmentation by type is bifurcated into monoclonal antibodies and small-molecule inhibitors, each anchoring distinct technology platforms. Monoclonal antibodies, engineered for high target specificity, command premium pricing and currently represent roughly 58 % of 2023 segmental revenue, driven by their utility in late-stage oncology trials where off-target toxicity must be minimised. Their longer development cycles and higher COGS are offset by extended patent cliffs and lucrative out-licensing potential. Conversely, small-molecule inhibitors, accounting for the remaining 42 %, deliver oral bioavailability and lower cost-of-goods, making them attractive for chronic indications such as non-alcoholic steatohepatitis (NASH) or neurological disorders where patient compliance is critical. Their revenue base is more volatile, sensitive to generic entry post-2030, yet pipeline expansion in CNS indications is forecast to raise CAGR to 9.4 % through 2028, outpacing the antibody segment.