The invention relates to a pharmaceutical combination comprising: a first conjugate comprising at least one
effector molecule and a single-domain
antibody (sdAb) for binding to a first
cell-surface molecule; and comprising a
saponin, a derivative thereof, or a second conjugate comprising a binding molecule for binding to a second
cell-surface molecule and the
saponin and / or the derivative thereof, wherein the
saponin or the derivative thereof is a monodesmosidic or bidesmosidic
triterpene glycoside. The invention also relates to a composition comprising the first conjugate and the saponin (derivative) or the second conjugate comprising the saponin (derivative). In addition, the invention relates to a pharmaceutical combination or composition of the invention, for use as a medicament, and for use in the treatment or the prophylaxis of a
cancer, an auto-immune
disease such as
rheumatoid arthritis, an
enzyme deficiency, a
gene defect, a
disease relating to a
gene defect, an
amyloidosis, a
disease related to an
enzyme deficiency, an infection such as a
viral infection, hypercholesterolemia, primary hyperoxaluria,
haemophilia A,
haemophilia B, alpha-1 antitrypsin related
liver disease, acute hepatic porphyria,
transthyretin-mediated
amyloidosis. Furthermore, the invention relates to an
in vitro or
ex vivo method for transferring the first conjugate of the invention from outside a
cell to inside said cell, preferably to the
cytosol of said cell.