RE: Happy Avacta New Year27 Dec 2023 13:16
@Jiveturkey just replying to your 26/12 10.08 post....
In response to your second point I agree with what you have said. My observations are initially Breast and Ovarian along with STS were going to be the 3 indications initiated first. This changed to STS likely due to cost and speed to FDA approval. I don't think we have seen any patients on the trial with breast or ovarian so why not? Is that random based on patient recruitment at the time? Possible.
When we consider the fortnightly dosing and the recent protocol change to include first line patients & indications beyond STS it appears they are deliberately increasing the scope here and prioritising looking for efficacy data in multiple indications high in FAP not just STS, why? If we then consider that new indications won't require P1A and can start at P2 the first line patient data we are about to see is critical to supporting those steps and any deal.
Lastly in the interim presentation if you refer to slide 12 they specifically quantify the following indications...Colorectal, pancreatic, prostate, lung, breast, Esophageal and salivary. There was no mention of Ovarian although it is detailed on the FAP graph.why? Management haven't spent much time discussing the TAM/other indications. I can't help feel this is deliberately being held back until a more advantageous time ie further through the trial with more data. Previous versions of this slide didn't quantify the incidences of these indications but adding this detail is telling.
JT a question for you.....do you think a deal for example breast cancer be done now if we haven't treated a patient with it yet but we know it is a high FAP indication? Given efficacy in STS is so hard to achieve and as you pointed out the patient stories to date are about STS efficacy that is a very positive sign.
As for your third point I got a reply to my question from the company last week on this. I asked why cardiotoxicity and alopecia were not on the 'adverse events' slide 13 and if there was any negative changes. This wasn't overlooked but was left off make the presentation as concise as possible.
Now refer to slide 16 interims in Sept and you get these two points below....
'Significant reduction in the incidence and severity of the usual doxorubicin related toxicities(alopecia,nausea,myelosuppression,
mucositis) including the most serious (neutropenia, thrombocytopenia, anaemia).'
'• Despite administering the equivalent of approximately three times the normal dose of doxorubicin to patients in cohort6, the typical drug-related cardiotoxicity of doxorubicin is not being observed.'
My personal view is Cardiotox is still not an issue and the reason why they may have left off these two important side effects but low on the adverse effects slide is because it isn't an issue and they can discuss at a future date. Worth noting that at AACR only new data can be presented so I think they are holding things back.