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Biotech / Medical : QLT PhotoTherapeutics (QLTI)
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To: BostonView who wrote (844)3/15/2000 9:26:00 PM
From: Ian@SI  Read Replies (1) of 1321
 
BV,

Good move, IMO. I think you'll be well rewarded rather soon.

If I understand the procedure correctly, the patient is examined to determine suitability for Visudyne treatment (one time assessment); for those where Visudyne is appropriate, the dose is injected, 30 minutes later the macula is(are) irradiated by the 698nm laser. Done.

I'm uncertain what the elapsed time requirement is for the assessment, but the latter 2 steps are literally in the order of seconds tying up the treating professional for a very small number of minutes.

Assuming that the treatment centers operate from Monday to Friday only and are closed for 15 statutory holidays annually; and that there is no spare laser so PM will take 1 day a month annually, the we're left with:

365 days in a year; less
104 days for weekends; less
15 statutory holidays; less
12 Preventive Maintenance days
___

234 treatment days; times
400 treatment centers
______

93600 treatment center days; times
30 patients per day;
________

2,808,000 annual dosages of treatment capacity if only 1 laser and 1 trained professional exists in each center. ... an assumption which is unnecessarily conservative.

With 200,000 new patients annually requiring 3 treatments during the first year, it would appear that there will be more than 4 times the treatment capacity than could be required by the AMD patients alone.

Anybody want to join Christine Charest (of Nesbitt Burns) in speculating as to how much off-label usage is likely to occur?

FWIW,
Ian.
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