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Ariad Pharma Short Seller Explains Why Takeover Rumor Is Bunk

By: Adam Feuerstein | 01/27/14 - 11:34 AM EST

Stocks in this article: ARIALLYNVS

I spoke with an institutional investor this morning who's been shorting Ariad Pharmaceuticals (ARIA), betting against the Daily Mail-fueled speculation of a takeover from Eli Lilly (LLY) or any other Big Pharma suitor. 

"A takeover of Ariad by any Big Pharma would be career suicide for the business development guy proposing such a deal," this investor told me. He's not allowed to be quoted by name, per his fund's compliance rules. 

Why is the Ariad takeover speculation bunk? Because both of the Ariad drugs a potential suitor would be conceivably paying a premium for -- the chronic myeloid leukemia drug Iclusig and the ALK-inhibitor AP26113 -- are facing significant competition from drugs in Novartis' (NVS) pipeline, he says.

Whatever value Iclusig and AP26113 have today stands a good chance of being erased if Novartis' drug development strategy pans out -- a risk not likely to be lost on Lilly or anyone else remotely considering an expensive Ariad acquisition. 

Here's his Ariad short thesis summarized:

Novartis is developing a third-generation BCR-ABL inhibitor known as ABL001 which works synergistically with Gleevec or Tasigna, the company's currently approved CML drugs. Novartis highlighted some preclinical data on ABL001 at an R&D event in November. Here's the slide:




 

If the combination of ABL001 and Tasignia prevents the emergence of resistance -- and can do so with a relatively clean safety profile -- there will be no room for Ariad's Iclusig, which is only approved right now for CML patients with the T315i mutation. 

Novartis is beginning human clinical trials of ABL001 in the first half of the year. 

Ariad's AP26113 faces a similar competitive threat from Novartis' own ALK inhibitor LDK378, which is already in phase III lung cancer studies, including patients no longer responsive to Pfizer's  (PFE) original ALK inhibitor Xalkori. If LDK378 succeeds and is granted approval, Ariad's AP26113 isn't left with much room to maneuver in what is a relatively small commercial opportunity to begin with. 

Here's a slide from the same Novartis R&D day noting the pivotal studies of LDK378 in progress:



By the way, FDA granted Breakthrough Therapy designation to LDK378 last year. Ariad applied for same with AP26113 but was turned down. 

For these fundamental reasons, the chances Lilly or any other Big Pharma would pay a significant premium to acquire Ariad is very low, and therefore, the recent run in the value of the stock is unjustified and will disappear once the market realizes that no deal is forthcoming, this investor believes. 


-- Reported by Adam Feuerstein in Boston.  

Follow Adam Feuerstein on Twitter.

Adam Feuerstein writes regularly for TheStreet. In keeping with company editorial policy, he doesn't own or short individual stocks, although he owns stock in TheStreet. He also doesn't invest in hedge funds or other private investment partnerships. Feuerstein appreciates your feedback; click here to send him an email.

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