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Biotech / Medical : PFE (Pfizer) How high will it go? -- Ignore unavailable to you. Want to Upgrade?


To: James Baker who wrote (750)3/27/1998 4:45:00 PM
From: Perry  Respond to of 9523
 
Can anyone please give me an indication of how long the phase III clinical trials take. Are they long term studies (i.e. 1 yr+)? I am asking because I am concerned about the possibility that individuals may develop an elevated level of the phosphodiesterase enzyme after prolonged usage. Is this a unwarranted concern?

Thanks in advance.
Perry