RE: Takeda5 Apr 2025 14:21
'Pre-clinical data generated to date and presented at AACR show that:
The release of the active proteasome inhibitor (AVA2727D) from AVA3996 is specific to the enzyme FAP, which is upregulated in most solid tumours. This underpins the potential to target the proteasome inhibitor to tumour tissue.
In a head to head study, AVA2727D kills cancers cells (ex-vivo) as effectively as bortezomib (Takeda’s Velcade) which is one of the approved proteasome inhibitors on the market.
In three different in-vivo (mouse) cancer models (melanoma, sarcoma and colorectal cancer), AVA3996 was as effective as bortezomib in restricting tumour growth, and in the case of the melanoma model, as effective as trametinib, the standard of care for unresectable melanoma.
The significant toxicities associated with bortezomib observed in these in-vivo models were not observed in the case of AVA3996, suggesting that the systemic exposure to the drug had been reduced due to the tumour targeting of the pre|CISIONTM chemistry in AVA3996.'