@edgescape it looks like a risky but potentially high reward tradeoff for Telix. From what I understand from the press release olaratumab does not work as a therapeutic/treatment agent in the trials it has been used so far. However it has high specificity for targeting certain types of cancers (they think). Telix is planning to use this specificity to diagnose soft tissue sarcomas and provide more targeted radiation as they apparently are more radiation sensitive. There may be the possibiltity of combining it as a part diagnostic and part therapeutic drug, but I imagine this is what the 'further development' part means.

My takeaway is this is very early stage pre-clinical theoretical research. I imagine they had to pay out a lot of money as if they succeed they will likely be able to charge a very large amount for their repurposed olaratumab. Rare cancer treatment is often hundreds of times more expensive than 'standard' therapy. So either they are very confident or over-confident, not sure which!

Full disclosure I own shares IRL but see it as a very risky investment and am hanging in for the long haul.