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Topic: Imitrex patent expires.... (Read 1288 times) |
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Mark C
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Imitrex patent expires....
« on: Aug 13th, 2003, 8:36am » |
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......in three years. I bet that is good news for us! Gotta bring the price down.
Pharmaceuticals
The table below sets out patent expiry dates for the active ingredients in significant GlaxoSmithKline products.
Therapeutic area Product Active ingredient(s) Patent expiry dates for active ingredient(s) in major countries
CNS disorders Seroxat/Paxil paroxetine During or after 2006
Wellbutrin bupropion Basic compound patents have expired. Formulation patents will expire during or after 2013
Imigran/Imitrex sumatriptan During or after 2003 USA 2006/08
Naramig/Amerge naratriptan During or after 2010
Lamictal lamotrigine During or after 2005
Requip ropinirole During or after 2007
Zyban bupropion Basic compound patents have expired. Formulation patents will expire during or after 2013
Respiratory Flixotide/Flovent fluticasone propionate During or after 2003
Serevent salmeterol xinafoate During or after 2003 USA 2008
Seretide/Advair fluticasone propionate & salmeterol xinafoate Patents covering the combination will expire during or after 2010
Flixonase/Flonase fluticasone propionate During or after 2003
Anti-bacterials Augmentin co-amoxiclav Basic compound patents have expired, with the exception of the USA (2017), France (2002) and Italy (2007)
Zinnat/Ceftin cefuroxime axetil Patents to cefuroxime axetil per se have generally expired, although SPCs exist in Europe until 2002. Patents on the amorphous form of cefuroxime axetil will expire during or after 2003
Fortum/Fortaz ceftazidime Basic compound patents have expired
Amoxil amoxycillin Basic compound patents have expired
Anti-virals Combivir lamivudine + zidovudine Patents on the combination of the two active ingredients will expire during or after 2012
Epivir lamivudine During or after 2009
Retrovir zidovudine Basic compound patents have expired. Patents on use in HIV infection will expire during or after 2005
Ziagen abacavir During or after 2009
Agenerase amprenavir During or after 2013
Valtrex valaciclovir During or after 2009
Zovirax aciclovir Basic compound patents have expired
Zeffix/Epivir-HBV lamivudine During or after 2009
Relenza zanamivir During or after 2013
Metabolic and Avandia rosiglitazone During or after 2013
gastro-intestinal Zantac ranitidine Basic compound patents have expired
Oncology and emesis Zofran ondansetron During or after 2005. During or after 2006 for patents to its use in emesis
Looks like many good drugs are going to get cheaper and GSK may be in a bind without new drugs to keep the cash cow going like it has.
PFDAN's
Mark
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vig
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Re: Imitrex patent expires....
« Reply #1 on: Aug 13th, 2003, 8:40am » |
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"Looks like many good drugs are going to get cheaper and GSK may be in a bind without new drugs to keep the cash cow going like it has. "
which means they will keep the price as high as they can until it expires.
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catlind
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Re: Imitrex patent expires....
« Reply #2 on: Aug 13th, 2003, 9:03am » |
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Of course the expiration of the patent on imitrex is discussed in the convention report as well 
Not the details that you provided, just the fact that the patent will expire.
Cat
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MOBster
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Re: Imitrex patent expires....
« Reply #3 on: Aug 13th, 2003, 1:46pm » |
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Well I can't see many drug companies coming out of the woodwork to produce a generic version of Imigran/Imitrex ?
It's not just the drug that's important but the well researched and well trialed delivery system. Which I may add is under patient to Glaxo for another ten years ! From what I have been told most drug companies would find the cost of inventing, trialing and producing a new or similar delivery system prohibitive. Hence no mad rush by drug companies to do it  and we thought Glaxo were slipping 
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Michael (MOB) 
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catlind
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Re: Imitrex patent expires....
« Reply #4 on: Aug 13th, 2003, 4:40pm » |
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Mob, my understanding is that's why they have changed their stat dose system to the new one. Regardless of the stat dose system, I use vials and a needle. That method of delivery is not only cheap, it's already available the world through.
While you may not get a stat dose reproduced under generic names, I can imagine that many other pharm co's would be chomping at the bit to release a generic version that is simply in a vial.
JMHO though 
Cat
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MOBster
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Re: Imitrex patent expires....
« Reply #5 on: Aug 14th, 2003, 3:11am » |
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Hi Cat,
There will always be a way around auto injectors Cat But I don't think there will be any rush to produce Imigran/Imtrex in vials by anyone or any other med for that matter.
The medical community are moving away from vials and administering medications that way because of the inherent risks involved. There are 800,000 needlestick injuries and potential exposures to bloodborne pathogens occurring each year in the US.
As recommended by your own Occupational Safety and Health Administration's (OSHA) newly revised bloodborne pathogens standard. The new Safety Tip-Lok all-in-one delivery system is already in use for Hepatitis A and B vaccines in hospitals.
This of course is already spreading to many other areas because of peoples fears (always a good selling point)about cross infection and obviously the GSK machine both heightening and allaying those fears in one
The 'wave of the future' will as usual be a lot more expensive than the past - JMHO 
Best Wishes,
Michael (MOB)
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Ted
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Re: Imitrex patent expires....
« Reply #6 on: Aug 14th, 2003, 3:25am » |
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You may be right MOB. The thing is that there is no liability lawsuit if a needlestick injury occurs. Not if you get your own prescription and administer it yourself. That's how most of it will be administered. It will still be very profitable for GK to produce it and the generic companies to reproduce it.
Those are staggering figures you gave here but they will have minimal impact on it being reproduced. Now, if they can produce it with a chemical that will help me I'll be very happy (Read, since it doesn't help me I have no horse in this race and therefore am not coming from the "I hope" POV)
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MOBster
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Re: Imitrex patent expires....
« Reply #7 on: Aug 14th, 2003, 4:09am » |
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Shit Ted I thought you had changed your username to Guest ? 
CGRP's sound like your only hope then Ted and it aint much at the moment 
Better watch Ted you are a newbie now
Best Wishes,
Michael
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