To: Merritt who wrote (6332 ) 1/18/1999 1:16:00 PM From: rkrw Respond to of 9719
<<I used to own some SEPR, but when they announced the deal with SGP (with no royalty details), I got nervous about their patent position. My thinking went that Claritin was on schedule to be a $2 bln drug this year, the deal with SEPR would effectively extend their patent by about 4 years...4 year extension on a $2b product for $5mm = chump change.>> The royalty rate ranges between 4-7%. $5M upfront is chump change but 4-7% royalties on a $2B plus drug is not. The DCL patents run quite a bit longer than 4 years beyond claritin patents, more like 10 or so years. <<but I'm still not sure about the strength of their patent positions...and still wonder about the co's own feeling. It may be that they negotiated with the thought of saving themselves a lot of hassle down the road, or maybe not that far down the road...>> Their patent positions are fine and further, the FDA has been encouraging chiral switches to get more effective and safer drugs approved. Sepr is not the only company pursuing a chiral switch strategy. JNJ has an approved antibiotic that is a chiral switch, Astra is planning to file single isomer prilosec this year, Redux was a chiral switch and of course Sepr is in the nice position of owning 50+ use patents for chiral switches. Barr Labs is the best known of companies pursuing patent challenges. Their CEO, Robt Downey was quoted as essentially saying that if there are no advantages to the chiral version then the patents could be weak. In other words, if the sole reason for the drug is to provide a patent extension and there are no benefits over the original drug than the patents will be investigated. There are advantages, some subtle, some not so to all the Sepr products. Some have/will save lives, such as Allegra, norastemizole or the ICE version of Propulsid. Others have more limited side effects, or have stronger efficacy. Its all documented in clinical trials. Challenging an isomer patent will be difficult. The other aspect you need to understand is when a patent is worth more in Sepracor's hands or those of the original drug marketer. Claritin is among the most lucrative of drug franchises and constitutes over $1B a year in net profits for Schering Plough. The ICE patent allows for a potentially more effective drug and a significant patent extension to go with it. So rather than starting at a base of zero, in SGP's hands they start at a base of millions of users and try and effectively switch as many users as possible over to the new version. If SGP can forge this transition, Sepr will be garnering royalties on a $2B plus drug, or $100M a year or more in bottom line profits, with no associated costs. For drugs where the racemate is insignificant; if the isomer version will allow for new indications, or if the racemate is off patent it can make sense for Sepracor to seek co-marketing deals, or self market. Sepr has chosen this with levalbuterol, norastemizole and apparently Meridia.