RE: PDC's v ADC's22 Oct 2025 18:48
My view is that most PDCs are not that dissimilar to ADCs. The advantage Avacta has is that we're miles ahead in terms of what our tech does and it is both disruptive and game changing, it will lead to a paradigm shift in cancer treatment and outcomes for the next 20 years imo. CC talked about a couple of competitors in the PDC market. She and the team at Avacta believe they may have marginal improvements in the tumour/plasma ratio 10-1 vs 8-1 at best in ADCs, resulting in slightly better targeting and slightly less toxicity/side effects; but 100-1 and the method of cleavage, leveraging the bystander effect, and hardly any off target toxicity, our tech is in a different league. I am also of the opinion that because we are dumping unheard of quantities of chemo into the tumour it is having unexpected impact in terms of durability for reasons yet to be explained, possibly linked to the ability of the immune system to get in there or maybe something else in terms of damage to the ability of the tumour to re-grow. Let's be honest here ADCs are the best we have at present but they still result in horrible levels of side effects in both quantity and severity. We have increased the dose of Dox to 4 times the previous maximum and we still don't have the problems ADCs have. This speaks volumes in terms of how we can deliver more toxic drugs, higher doses of drug, for longer treatment periods and who knows maybe we will get the lifetime cumulative allowance removed too!
The technology can be attached to drugs soon to be out of patent, drugs that appear to be too toxic or are in effective in other ways because they didn't stay in tumour long enough.
The measurement of value should not be thought of simply in terms of the total addressable market for the drugs in the iceberg we know about (6000, 6103, 6207 and 7100) but also how Avacta's technology can unlock otherwise lost value in previously used but out of patent or discovered but discarded drugs. We will turbo charge and re-purpose those drugs in ways previously thought to be impossible. All very obviously imho.