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April 9, 2008
And You Thought Exubera Was A Disaster Before
I don't usually do more than one post a day, but this really caught my eye. In an ongoing review of Pfizer's (now discontinued) inhaled insulin (Exubera), an increased chance of lung cancer has turned up among participants in the clinical trials. Six of the over four thousand patients in the trials on Exubera have since developed the disease, versus one of the similarly-sized control group. Six isn't many, but with that large a sample size, it's something that statistically can't be ignored, either.
The concerns would have to be, naturally, that this number could increase, since damage to lung tissue might take a while to show up. This, needless to say, completely ends Nektar's attempts to find another partner for Exubera. Their stock is getting severely treated today (down 25% as I write), but things are even worse for another small company, Mannkind, that's been working on their own inhaled insulin for years now (down 58% at the moment).
There's no guarantee that another inhaled form would cause the same problems, but there's certainly no guarantee that it wouldn't, either. Whether this is an Exubera-specific problem, an insulin-specific one, or something that all attempts at inhaled proteins will have to look out for is just unknown. And unknown, in this case, is bad. It's going to be hard to make the case to find out, if this is the sort of potential problem waiting for your new product. Inhaled therapeutics of all sorts have taken a huge setback today.
+ TrackBacks (0) | Category: Cancer | Clinical Trials | Diabetes and Obesity | Toxicology
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