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Biotech / Medical : QLT PhotoTherapeutics (QLTI)

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To: jay silberman who wrote (91)2/25/1997 10:19:00 AM
From: Bill Tomko   of 1321
 
Jay, we meet again. We must follow the same stocks. On this one I strongly advise caution. This is not a new discovery. This concept has been around for a few years with very little to show. Several problems exist generically with the concept, 1) very hard to control the rate at which the tumor is distroyed ( if it were all killed at once great danger you would creat an abscess and watch the pateint die from infection 2) in the case of lung cancer by the time you are diagnosised the cancer has already spread to areas where this tech cannot reach, brain for one, 3) while I have NOT reviewed I strongly question how long a lead they relly have on the drug side. My recollection is there are a large number of light activated drugs that could be eveluated. IS their choice any better then the next? Generic competion after thay prove concept?4) this works best where the cancer can be seen. It is cancer that you cannot see that will kill you. Again, I HAVE NOT RESEARCHED I"M ONLY URGEING CAUTION! as a smoker, I hope it works and I'm wrong
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