Transferrin receptor (TfR)-mediated transcytosis is a receptor-mediated mechanism for drug delivery to the brain or other tissues, where, after the antibody binds to transferrin, the therapeutic agent is internalized and released into the brain.

Only three years after it was co-founded by Johnson & Johnson, Aliada Therapeutics Inc. is being acquired by Abbvie Inc. in a deal valued at $1.4 billion that gives the big pharma firm another shot at the Alzheimer’s disease space. The all-cash deal, expected to close in the fourth quarter of 2024, will give Abbvie access to Aliada’s blood-brain barrier-crossing Modular Delivery, or MODEL, as well as rights to ALIA-1758, an anti-pyroglutamate amyloid beta antibody designed using MODEL, which is in phase I testing for Alzheimer’s disease.