Charles_T
Member
This is an update from todays presentation
http://m.4-traders.com/SENSORION-21...-Data-at-ARO-2018-MidWinter-Meeting-25988660/
http://m.4-traders.com/SENSORION-21...-Data-at-ARO-2018-MidWinter-Meeting-25988660/
These results demonstrate that daily, oral administration of the small molecule clinical candidate drug SENS-401 leads to significant local drug exposure and strongly enhances recovery in rats suffering from severe, acute noise-induced hearing loss.
In this (https://globenewswire.com/news-rele...ed-Up-to-Four-Days-after-Acoustic-Trauma.html) ridiculously hyped press release we learn a bit of interesting information. (In addition to the hype, its very odd they talk about SSNHL after acoustic trauma. Part of why SSNHL is challenging in that there is no obvious cause.)
Anyway, here is the interesting bit with emphasis added "In the study, beginning from 24 to 96 hours after severe acoustic trauma, rats orally received either 13.2 mg/kg SENS-401 or placebo control twice daily for 28 days. Hearing outcomes and otoprotection were evaluated via auditory brainstem response (ABR) and distortion product otoacoustic emission (DPOAE) testing as well as cochleograms. SENS-401 treatment significantly improved recovery of hearing loss in rats when initiated up to 96 hours after severe acoustic trauma (p=0.006) as well as enhancing the survival of sensory outer hair cells (p=0.027). "
The improvement in hearing loss is of course a good thing, but preserving outer hair cells is very important for improving thresholds. With p=0.027, it's not hugely statistically significant, but any evidence of this is a good thing.
It says it was given up to 96 hours post noise trauma. So it looks like a treatment for permanent damage if given acutely.Can someone provide some insight into this slide?
View attachment 35278
Because it seems to imply from additional data on the right that the result in the picture above from SENS-401 was post noise trauma and not preventative.
Which means they were getting reorganization and regeneration of the OHC with this compound and I'm very confused how that is possible.
Am I reading the data wrong, could someone help? https://www.sensorion-pharma.com/im...20200130-Corporate_Presentation_Sensorion.pdf
Does anyone know the answer to this?Is this a preventative drug or can it restore hair cells as well?
It doesn't restore hair cells. You can give it right after an acoustic trauma to "treat" the damage that would otherwise destroy the hair cells:Is this a preventative drug or can it restore hair cells as well?
Oh OK, thanks.It doesn't restore hair cells. You can give it right after an acoustic trauma to "treat" the damage that would otherwise destroy the hair cells:
https://www.sensorion.com/en/fiches-produits/sens-401-2/#SENS-401SSHNL
In that sense it's more of a preventative except by technicality.
Let's hope 4 weeks was long enough for any hair cells that would regenerate to regenerate. Also we don't know; it is entirely possible that the hair cells regenerated but did not connect to the nerves. Might need a dual drug therapy that delivers the hair cell re-generator and then a cochlear synapse terminal re-generator like OTO-413.Phase 2 failed =(
SENS-401 was safe and well tolerated, however, it did not meet the primary endpoint of 15 dB, a significant improvement in pure tone audiometry (PTA, dB) in the affected ear from baseline in comparison to placebo at the end of the four-week treatment period.
https://www.sensorion.com/en/category/press-releases/
What, are these guys serious, it is not only about damn dB increase. If clarity or speech perception in noise improved as well, then the drug works. It's much more deeper and complicated than just damn stupid audiogram measurement.Phase 2 failed =(
SENS-401 was safe and well tolerated, however, it did not meet the primary endpoint of 15 dB, a significant improvement in pure tone audiometry (PTA, dB) in the affected ear from baseline in comparison to placebo at the end of the four-week treatment period.
https://www.sensorion.com/en/category/press-releases/
They're still evaluating it for secondary endpoints.What, are these guys serious, it is not only about damn dB increase. If clarity or speech perception in noise improved as well, then the drug works. It's much more deeper and complicated than just damn stupid audiogram measurement.
Sometimes I feel those experts in field have to experience by themselves what it means to have hearing loss, or just listen to musicians who have lost their hearing somehow, because as musician I was able to identify it really fast what has happened, what is happening and what was lost at first.