Table 4.

List of available extracellular cathepsin inhibitors.

Inhibitor	Target	Reference
Fsn0503	antibody against extracellular cathepsin S	[200]
Nitroxoline	extracellular cathepsin B	[202]
LNC-NS-629	extracellular cathepsin B	[203]
CTD-002	extracellular cathepsin D	[162]