RE: AVA3996 is dead, long live bortezomib14 Mar 2025 10:42
Something in the Panmure Liberum interview that has so far gone unnoticed was a little mention CC slipped in @ 15:10, transcript below:
Interviewer: The pre|CISION technology has clearly got very broad application. Can you expand on the other potential uses it has?
CC: So, one of the next medicines that we're looking to make is a targeted therapy, so it's not just chemotherapy. I know the first two have been sort of traditional chemotherapies but pathway inhibitors for example have been very effective in a number of diseases but they also can carry some very high toxicities and so therapeutic index with pathway inhibitors is also a problem. We hope to see one of those coming soon to the clinic. [CC then uses mouse and mobile to start talking about AVA7100]
https://fast.wistia.net/embed/iframe/jhkzsr4536
'Pathway inhibitors' is a ubiquitous term meaning inhibitors of biochemical/cellular pathways. Doxorubicin (topoisomerase II inhibitor) and exatecan (topoisomerase I inhibitor) are both pathway inhibitors, as is bortezomib (proteasome inhibitor). Bachovchin's team couldn't link bortezomib itself to the pre|CISION dipeptide because the chemistry didn't work, so they developed an analog, a chemically similar version, that they could link, which Avacta called AVA3996. With their new chemistry techniques Avacta can now probably make a bortezomib prodrug using pre|CISION should they so wish. The bortezomib patents in the US expired in 2022 and the drug is tumour agnostic so has very wide application.
It would be very ambitious for Avacta at this stage in their development to add another therapeutic area with all the inhouse expertise and scientific advisors that that would entail. Their strategy has been to take off-patent cytotoxins and target them to tumours so a pre|CISIONed bortezomib could be a definite possibility for a future oncology pipeline candidate.
However other companies could use pre|CISION with pathway inhibitors to treat indications in other therapeutic areas. Here are some links to Google searches about this that lead to a lot of information about what could be possible:
Fibroblast activation protein in disease: https://www.google.com/search?q=%27fibroblast+activation+protein%27+in+disease
Pathway inhibitors in...
- Cancer: https://www.google.com/search?q='pathway+inhibitors'+in+cancer
- Fibrosis: https://www.google.com/search?q='pathway+inhibitors'+in+fibrosis
- Wound healing: https://www.google.com/search?q='pathway+inhibitors'+in+wound+healing
- Inflammation: https://www.google.com/search?q='pathway+inhibitors'+in+inflammation
- Arthritis: https://www.google.com/search?q='pathway+inhibitors'+in+arthritis
- Atherosclerosis: https://www.google.com/search?q='pathway+inhibitors'+in+atherosclerosis
Pathway inhibitor...
- Side-effects: https://www.google.com/search?q='pathway+inhibitor'+side-effects
- Toxicity: https://www.google.com/search?q='pathway+inhibitor'+toxicity