One of the surprise controversies at ESMO16 was the fall-out between Myriad Genetics (NASDAQ: MYGN) and Tesaro (NASDAQ: TSRO) over whether the company’s PARP inhibitor, niraparib, should require a companion diagnostic for the treatment of women with platinum-sensitive ovarian cancer in the maintenance setting. We previously wrote about this from Copenhagen (Link).

christianhavn

Christianhavn

Tesaro were so keen on controlling their message, in the run-up to ESMO, they even went to the trouble of taking out a legal injunction against Myriad Genetics in an attempt to prevent them publishing their own press release discussing the niraparib data.

We knew about this “off the record” at ESMO, but it’s now a matter of public knowledge and John Carroll admirably reported the story on Endpoints last week (Link).

It is a sad reflection on any biotech partnership or pharma alliance if you can’t reach an agreement in private, and have to resort to an injunction in US Federal Court. Doubly unfortunate when you lose the injunction too!

As many readers are already aware, back in June 2014 AstraZeneca failed to convince an FDA ODAC about the merits of olaparib in the same indication that Tesaro are seeking. This is why the data for Tesaro and their regulatory/commercial approach justifies careful scrutiny.

What’s more, data from Myriad Genetics was key to AstraZeneca obtaining a subsequent indication for olaparib in more advanced ovarian cancer, so their experience in this space cannot be dismissed.

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Johnathan M. Lancaster MD PhD

At ESMO, the Myriad Genetics Laboratory Chief Medical Officer, Dr Johnathan Lancaster kindly spoke to BSB.

He shared his perspective on the niraparib data and why a companion diagnostic should be considered based on the NOVA trial data presented by Dr Mansoor Mirza. You can read more about the data in The NEJM paper that was published simultaneously (Link).

Dr Lancaster was formerly Director of the Center for Women’s Oncology, and Chair of the Department of Women’s Oncology at Moffitt Cancer Center in Tampa.

While he does bring a corporate bias based on his position at Myriad Genetics Laboratories – and Myriad clearly have a vested interest in selling diagnostic tests – his clinical perspective is worthy of consideration and it’s one that is shared by other GYN oncology thought leaders we have spoken to (see: earlier post, “what Tesaro aren’t telling you about niraparib”).

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