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Destroying Cancer at the Speed of Light®

Clinical Study Underway (75 of 100 Patients Treated)
Expected to complete enrollment at the end of 2024
Expected to complete study at the end of 2026


Bullboard - Investor Discussion Forum 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... see more

TSXV:TLT - Post Discussion

Theralase Technologies Inc. > New Data Format
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Post by Eoganacht on Apr 27, 2023 2:36pm

New Data Format

The new format for presenting data at first seemed a little off-putting, mainly because it was difficult to compare previous data with current data so we can determine if we are doing as well as expected.

I am guessing that the biostatistics and regulatory organization helping Theralase compile the clinical data report for submission to the FDA in support of the BTD application advised making these changes to the presention of the data.

The chart in the MD&A is headed Patient Assessment Visit and that's exactly what it is - a chart showing the assessments of patients at various time intervals. Only 12 patients have been assessed at 450 days and the chart shows only the results for those 12 patients. Patients previously assesed NR who have reached 450 days but were not assessed at 450 days are not shown.

This chart only shows Phase 2 patients. The 3 phase 1b patients previously included have been excluded. 

For my own peace of mind I wanted to know how we are doing in terms of the old format. I put together the following chart by moving the totals forward 3 months, keeping the phase 1 patients and incorporating the new numbers. I have some uncertainty about how many patients moved from one time period to another, but I think this is fairly accurate. We're doing very much as we expected. It seems the sky is not falling.

  90 180 270 360 450
Assessment # % # % # % # % # %
CR 30 54% 25 58% 17 45% 11 30% 10 29%
IR 6 12% 8 18% 6 16% 2 5% 2 6%
TR 36 65% 33 77% 23 61% 13 35% 12 35%
NR 19 35% 10 23% 15 40% 24 65% 22 65%
Total 55 43 38 37 34
Comment by ScienceFirst on Apr 27, 2023 2:42pm
Great digging and analysis Eoganacht.  Thanks for sharing.
Comment by 99942Apophis on Apr 27, 2023 3:06pm
Thanks Eoganacht your efforts are well appreciated 
Comment by CancerSlayer on Apr 27, 2023 4:33pm
  Like me, the old school format works too.  Thanks for the numbers... Looking at the Swimmer's plot, there are currently 19 patients who are planning to move forward with the trial (i.e. they have not yet been assessed at 450 days).  Of those 19, 14 (74%) demonstrated a CR.  Twelve of the CRs plan to move forward with the trial, which gives us a rolling CR rate of 63 ...more  
Comment by Donein25 on Apr 27, 2023 4:44pm
CS. The KM curve shows us at 28% for 450 day CR. You are correct that it excludes the first 12 undertreated and the 3 patients from Phase 1. But if you go back to the November #s, which did include the 12 undertreated and the 3 patients from Phase 1, we are also at the same 450 day CR of 28%. Same % (28) with seemingly different patient pools. Am I wrong on this? Are we seeing a demonstrated ...more  
Comment by CancerSlayer on Apr 27, 2023 4:59pm
The reported data, plot & KM Curve "does"  include the 12 undertreated per my reading.  My point was that these 12 should have been dismissed or not be included in the KM analysis...or any other analysis for that matter.  The current data on active trial patients (i.e. those who have not been assessed at 450 days, but continue in the trial) point to a durable response ...more  
Comment by enriquesuave on Apr 27, 2023 6:13pm
Th KM curve includes the 12 undertreated patients as it's the same data as Nvember.and shows 28% CR at 450 days.  If we removed it we would get 67% CR
Comment by Oden6570 on Apr 27, 2023 7:06pm
I am very confused right now however I choose to put faith in the new TLT published results.  67% cr at 450 days. I would not believe they would publish false results. 
Comment by greaterfoolFred on Apr 27, 2023 7:26pm
I am confused too.  No, more than that, I would call my response flabergastation (any credit for big words?)  We DO NOT have a CR of 67% at 450 days.  You CAN NOT increae your CR by throwing out NRs.  Why not just throw them all out and have a 100% CR?  That would get us BTD and AA and a pile of money pretty fast.  The company has made an error in  how they ...more  
Comment by CancerSlayer on Apr 27, 2023 7:19pm
  At this point in time, there are 19 active trial patients, 12 of whom are CR.  There are currently 8 CRs at 450 days.  Discounting the first 12 undertreated, if the current 12 remain CR until the 450 day endpoint, that would generously put us at 20 of 44 patients (or a 45% 12 month durable response rate).   Based on current trends & my brief analysis for the " ...more  
Comment by enriquesuave on Apr 27, 2023 7:29pm
I would say more around 45-55% durable CR as some of the IR patients convert to CR. 
Comment by CancerSlayer on Apr 27, 2023 8:21pm
  My overall 30+% durable CR figure includes the first 12.  Excluding them, I think it's possible we get to 30-40+% durable CR if all goes well.  Except for the two IRs/unknowns at 450 days, all IRs appear to end up NR.  Hopefully, that IR trend changes over time as more patients are treated & PIs gain additional experience under the optimized protocol.
Comment by enriquesuave on Apr 27, 2023 8:42pm
So we are on the same page.  In the swimmers plot and the chart, the initial 12 are included at 90 days.  If we remove them at 90 days data, then we could see 63%  CR ( instead of 54%) or 25out of 40 and 12% IR or total response of 75%.  Anytime CR would be 29 out of 40 or 73% plus 12% IR. Total response of 85%.  We beat combination of N-803 plus BCG so far. We are being ...more  
Comment by 99942Apophis on Apr 27, 2023 9:16pm
It does seem currently enriquesuave Theralase's treatment as you say tops BCG & N-803 so potentially becoming a contender to the SOC crown. I hope Theralase has contacted the Security Commission  after such strong impressive data is followed by a drop in share price!  Yes the thought of manipulation does hit you in the face. 
Comment by CancerSlayer on Apr 27, 2023 9:40pm
  Yep...what is very encouraging to me is that of all the patients who maintained a CR for at least 180 days (total of 22), only 2 have ended up NR thus far (with 6 awaiting their 270 day assessments & one 90/180 day CR who did not remain in the trial for whatever reason).     For those who have been CR for 270 days (total of 13), none have become NR thus far (with 1 pending ...more  
Comment by DJDawg on Apr 27, 2023 10:42pm
I like the way the CR group is an enlargening wave that will work its way across the timeline. https://postimg.cc/xkH2XP87 Every time the CR wave moves one column you know that all those patients are closer to locking in a permanent cure. I do hope the AUA poster has a bit more clarity in some ways. The companies releases seem to always confuse us. We shouldn't have to do so much detective ...more  
Comment by rodrabal on Apr 27, 2023 10:59pm
Confusing is putting it mildly. And the share price response is completely nuts with no volume ,what so ever. That's where we need good PR personal to get the news out to the media and promote the stock. The cancer drug that nobody knows about lol. This stock is driving me nuts. 
Comment by CancerSlayer on Apr 28, 2023 12:10am
  Nice description....a growing wave (hopefully a tsunami) of CRs that should steadily drown out over time existing & any new NRs.  The ratio of CRs to NRs moving forward certainly looks promising.  As for the poster presentation, I'd expect a much more clear format.  The current NR may be informational, but it is not informative in terms of the durability of response ...more  
Comment by Rumpl3StiltSkin on Apr 27, 2023 7:31pm
Slayer, Thanks. I agree with your thinking here. Both the Swim plot and the boxed graphed data were confusing based on this analysis. As they both, to differing degrees? kept the undertreated 12... IMO
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