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Theralase Technologies Inc. V.TLT

Alternate Symbol(s):  TLTFF

Theralase Technologies Inc. is a Canada-based clinical-stage pharmaceutical company. The Company is engaged in the research and development of light activated compounds and their associated drug formulations. The Company operates through two divisions: Anti-Cancer Therapy (ACT) and Cool Laser Therapy (CLT). The Anti-Cancer Therapy division develops patented, and patent pending drugs, called Photo Dynamic Compounds (PDCs) and activates them with patent pending laser technology to destroy specifically targeted cancers, bacteria and viruses. The CLT division is responsible for the Company’s medical laser business. The Cool Laser Therapy division designs, develops, manufactures and markets super-pulsed laser technology indicated for the healing of chronic knee pain. The technology has been used off-label for healing numerous nerve, muscle and joint conditions. The Company develops products both internally and using the assistance of specialist external resources.


TSXV:TLT - Post by User

Comment by 2b7f6fabon Apr 15, 2022 1:57pm
192 Views
Post# 34606689

RE:RE:Perhaps Theralase can update

RE:RE:Perhaps Theralase can update Pandora I think your questions are valid.  To me these missing 11 represent those patients showing no response.  Maybe they could insert a column for NR.

If I were giving a presentation to the FDA of the performance of the trial to date I think I would mention the total of 38 patients treated to date but then subtract from that total the patients who left the trial or were undertreated regardless of outcome to date..   So I would remove patient #4 from Ph1, remove the Ph2 patient who died from a heart attack and remove the 12 patients who were mis-treated even though some of them have had a CR or PR.  Why muddy the waters with data from patients who didn't receive the correct treatment or couldn't even make it to day 90?  That leaves us with 24 patients who have received the correct treatment as stipulated in the trial protocol.  Let's just show the table CR, PR, NR, Pending as simple numbers of patients.  I can figure the percentages in my head thank you.

Thanks to those of you who commented to my previous post concerning analysing the discharge fluid at the end of treatment.  I'd still like to see it performed.  I don't agree with the idea that there are folds in the bladder tissue preventing the compound or the laser  reaching those areas.  The bladder is filled to full for both activities.   Analyse the discharge fluid for every treatment to be sure the pharmacist didn't botch the mixing of the compound.






Pandora wrote:
Now that we are into a 4 day weekend can I go back to basics in trying to interpret the news release?

Prior to the first chart there is the following statement: (I have since been debating with myself if the subsequent chart titled "Study II Clinical Study Data" is for 38 total patients or only 35 Study II patients). Can someone confirm? Also there is no date on this chart

"As previously announced, Theralase® successfully completed a Phase Ib NMIBC Clinical Study (“Study I”), which enrolled and provided the primary study treatment, at the therapeutic dose, for 3 patients. To date, Study II has enrolled and provided the primary study treatment for 35 patients, which when combined with the Study I data, leads to a total of 38 patients, who have received at a minimum, the primary study treatment."

Study II Clinical Study Data:

Assessment (Days) Complete Response (“CR”) 2 Partial Response (“PR”) 3 Pending 4 CR (Evaluable Patients) 5 Total Responders (CR + PR) 6 Potential Responders (CR + PR + Pending) 7
90 44.7% 15.8% 10.5% 50.0% 60.5% 71.1%
180 31.6% 15.8% 28.9% 44.4% 47.4% 76.3%
270 23.7% 5.3% 42.1% 40.9% 28.9% 71.1%
360 13.2% 7.9% 47.4% 25.0% 21.1% 68.4%
450 13.2% 5.3% 47.4% 25.0% 18.4% 65.8%
 
In the chart, on the assumption it represents all 38 patients, I derive from the percentages that at the 90 day period "44.7% CR" represents 17 patients + "15.8% PR" represents 6 patients + "10.5% Pending represents 4 patients (27) -- where are the other 11?

My logic then breaks down because 44.7 + 15.8 + 10.5 only totals 27 patients. (71% of the 38) which agrees with the figure at the end of the chart.

Being repetitious where are the other 11 patients -- is there not a category for them? Is this suggesting they have been treated but have not yet reached the 90 day target? If that is true what is the difference between them and the "Pending"? The paragraph above the chart says all 38 have been provided the primary study treatment. Is there a "wait" time before you get categorized as "Pending"?

As you can tell I'm confused -- and likely not alone.

Based on this next statement whereas Chart One appeared to be for 38 patients for each line interval the data in Chart Two varied for each line as follows:

"The Study II optimized treatment patients, who received either an optimized primary study treatment or optimized maintenance study treatment consisted of: 23 patients at 90 days, 26 patients at 180 days and 27 patients at each of 270, 360 and 450 days."

This then confirms the reference to "Primary" and "Secondary" further down in the NR where they suggest the 90 day "Primary" data (44.7%) in Chart One is on 38 patients whereas the 90 day "Primary" data (52.2%) in Chart Two is only for 23 patients.

They then go on to suggest the "Secondary" 450 day data (13.2%) in Chart One is for 38 patients and the "Secondary" 450 day data (3.7%) in Chart Two is for 27 patients.

I am assuming Chart Two for the most part does not include Patients 1 to 3 from Phase 1b or all 12 of the first under-dosed patients from Phase II (Study II) -- but that's a guess. Not sure why it varies from 23 patients to 27 patients. Maybe it will become clear. Also have not really figured out how some lines are referred to as Primary and others as Secondary.

I will leave it at that for now while I sit and scratch my head some more and try to rationalize it all. My complements to all of you that have been able to sort it out. Very astute!


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