Until recently, we followed the race to market in EGFR T790M lung cancer with Clovis’s rociletinib and AstraZeneca’s osimertinib (Tagrisso).  In phase 2, AstraZeneca caused quite a stir when they came from behind and leapfrogged their biotech rival with a large global randomized controlled trial seemingly out of nowhere.  They never looked back.

Can they do the same thing with durvalumab (Imfinzi), one of their IO therapies that targets PD-L1?

If there’s one thing that many astute observers of the IO space have learned this week it’s that irrational exuberance and the hopeful sentiment that ‘everything’ will just tweak the immune system and work positively no matter what has thankfully come to an end.

We’ve seen several highs and lows already with Merck’s pembrolizumab gaining accelerated approval in 1L NSCLC in allcomers when combined with chemotherapy and AstraZeneca reporting positive phase 3 data for durvalumab in unresectable (stage 3) NSCLC based on meeting the study endpoint (PFS).

There is much to be learned because the nivolumab disaster in 1L NSCLC last year was not a singular aberration given that durvalumab has seen some missteps in the past and even atezolizumab had some unexpected news with urothelial cancer this week (Check out our insights), as compared to chemo in the second line setting. Just like mutations, there will be many more to come, perhaps even some additional ones before the year is out.

What about today’s news from AstraZeneca in unresectable NSCLC?

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