Frequency Therapeutics — Hearing Loss Regeneration

Discussion in 'Research News' started by RB2014, Dec 8, 2016.

    1. JohnAdams
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      I think they are seeking their own paths so they can be the ones that get the glory and the patents and ultimately money and recognition while we slowly deteriorate.
       
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    2. 1000

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    3. JohnAdams
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    4. Pero1234

      Pero1234 Member

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      I don’t want to go offtopic by discussing how obsolete ENT tests are, but I do have a question:

      Do ENTs consider high frequency hearing loss to be “hidden” hearing loss? Or are we talking about a different type of hearing loss?
       
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    5. Contrast
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      I think hair cell regeneration could also help hearing loss not detected by tonal audiograms.

      I can't imagine it doing nothing.
       
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    6. 1000

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      If not all tinnitus is from hearing loss then the damage can be to the nervous system itself... and not hair cells?
       
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    7. 1000

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      My audiogram shows hearing loss. The loudness of the tinnitus wouldn't let me hear the tones.
       
    8. JohnAdams
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      Unless the ENT can't detect hearing loss and won't refer you to the treatment.
       
    9. Manny
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      Manny Member Podcast Patron Benefactor Hall of Fame

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      Agree, just because ENTs don't test 8-20 kHz doesn't mean medicine will magically skip over that part of the cochlea :)
       
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    10. JohnAdams
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      JohnAdams Member Benefactor Hall of Fame

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      Yes, people with hyperthyroidism report tinnitus.
       
    11. Contrast
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      Contrast Member Benefactor Hall of Fame

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      You also need to know hidden hearing loss isn't just over 8 kHz.

      it also can mean trouble hearing speech in background noise within 250 Hz - 8 kHz because of damaged cochlear ribbon synapses or certain hair cells that work as amplifiers.
       
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    12. Contrast
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      Contrast Member Benefactor Hall of Fame

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      Judging by your audiogram and complaints of hearing damage, it's obvious your tinnitus was brought about by SNHL.
       
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    13. GregCA
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      GregCA Member Benefactor Hall of Fame

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      They're different.
      Hidden hearing loss is hearing loss that doesn't show on a hearing test. High frequency hearing loss does show on a hearing test if the test covers those frequencies.
       
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    14. Samir
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      Nothing is ever hidden if you know where to look.

      If you're an audiologist or an ENT doctor and you only administer a standard hearing test up to 8 kHz, then you can't really call high frequency hearing loss above 8 kHz as "hidden" hearing loss.

      To put it differently...

      The moon does not simply disappear when we are not looking at it. ~ Einstein
       
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    15. Samir
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      The term "hidden hearing loss" was originally coined by two British researchers. I recall posting about this once. I even contacted them about this and they confirmed my findings. It was later adopted by professor Charles Liberman from MEEI and has been attributed to him ever since.

      Technically, "hidden hearing loss" refers to a type of synaptopathy, specifically cochlear synaptopathy. Where synapto refers to synapses and -pathy denotes a disorder. Disorder of the synapses! That is to say, a loss of synapses or malfunction of synapses.

      It's much easier to just say "hidden hearing loss", isn't it? That's why it became a popular term. But it has nothing to do with whether or not high frequency hearing test is done or not.

      I suppose we could also say that hidden hearing loss is the "N" in SNHL. That's the "neural" in "sensori-neural hearing loss". There is no easy way to measure neural hearing loss unless the nerve is cut off completely, or by a differential diagnosis using several different tests and looking at the patient's medical history.
       
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    16. JohnAdams
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      That's why the Otonomy drug for hidden hearing loss is BDNF, which doesn't regrow hair cells, but restores the synapses.
       
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    17. ringringer
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      ringringer Member

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      Could I get a rough date on when this will be coming to market?
      2022? Later?
       
    18. Samir
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      That's the idea behind BDNF, yes.

      I looked up the term again. It was coined by Roland Schaette and David McAlpine in a JNeuroSci paper linked below.

      http://www.jneurosci.org/content/31/38/13452.long
       
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    19. Samir
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      On the conservative end of the scale, yes. I would say that's a pretty good estimate.
       
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    20. Manny
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      @Samir You mean that 2022 would be on the early side, right?
       
    21. Soren

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      Very early.

      Phase 2 starts in 2019. Let's say that takes 1-2 years.

      Next is a phase 3 that can take anywhere from 1-4 years.

      There will probably be a peer review, add 1 more year.

      I would say anywhere between 2022-2026.
       
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    22. JohnAdams
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      Star date 2233.04
       
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    23. Spiral
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    24. Gorbeh3

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      Under normal circumstances I would agree with this time line, however, this is not normal circumstances.

      If phase 2 shows positive results there is going to be immense pressure to get this out ASAP by the US government for veterans.

      https://www.military.com/benefits/v...us-is-number-one-disability-for-veterans.html
       
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    25. katri
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      katri Member

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      That and they aren’t just set on curing hearing loss. They want to expand to other areas. They aren’t going to spend 10 years on ears alone. They made it their mission statement, they want to be the first ones figuring it out. If they fail with this then it’ll be harder for them to gain any more investors.
       
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    26. Soren

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    27. JohnAdams
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    28. grate_biff
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      Would make sense to "fast track" it. It certainly is an unmet market.

      What I´m hoping for is an "Open phase III", which mean we could get the drug as fast as 2 years from now.
      That would be the fast "fast track" option.

      Anybody know any examples where an "Open phase III" was being conducted?

      I just heard about this as an option from someone on this forum.
       
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    29. katri
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      I doubt it. Why would they fast track it when they don’t know if it seriously works yet?

      They’ll have to show sufficient evidence to prove that they should be allowed to fast track their drug.
       
    30. JohnAdams
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      Well they're testing it on humans now so they'll know soon enough.
       
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