Tinnitus Control by Dopamine Agonist Pramipexole in Presbycusis Patients

Discussion in 'Research News' started by rogerg, Mar 30, 2011.

    1. rogerg

      rogerg Member

      Tinnitus control by dopamine agonist pramipexole in presbycusis patients: A randomized, placebo-controlled, double-blind study

      Objectives/Hypothesis:
      Since the concept of tinnitus dopaminergic pathway emerged, studies have been proposed to investigate if dopaminergic agents influence tinnitus. We hypothesized that pramipexole, an agonist on D2/D3 receptors, may antagonize tinnitus in the presbycusis patients (in the frequency range of 250 to 8,000 Hz) in a dose schedule accepted for the treatment of Parkinson's disease in elderly people.

      Study Design:
      We designed a randomized, prospective, placebo-controlled and double-blind trial.

      Methods:
      Forty presbycusis patients aged 50 years or older with subjective tinnitus were randomized to two groups (20 patients in both). Patients in the drug group took pramipexole over a period of 4 weeks according to a treatment schedule as follows: week 1, 0.088 mg t.i.d.; week 2, 0.18 mg t.i.d.; week 3, 0.7 mg t.i.d.; week 4, 0.18 mg t.i.d. over 3 days and 0.088 mg t.i.d. the rest of the week. Patients in the second group received placebo. Determination of subjective grading of tinnitus perception, the tinnitus handicap inventory (THI) questionnaire and electrocochleography (ECOG) examinations served as the end points. Subjective audiometry was used to produce secondary data. A significant improvement in tinnitus annoyance is found in the group treated with pramipexole versus placebo with respect to inhibition of tinnitus and a decrease of tinnitus loudness greater than 30 dB. However, neither ECOG nor subjective pure-tone threshold audiometry revealed any change in hearing threshold in response to either pramipexole or placebo.

      Conclusions:
      Pramipexole is an effective agent against subjective tinnitus associated with presbycusis at a dose schedule used for the treatment of Parkinson's disease. The drug did not change hearing threshold.
       
      • Informative Informative x 1
    2. Jim
      Happy

      Jim Member Benefactor

      Location:
      San Francisco
      Tinnitus Since:
      04/2007
      Pramipexole is also used by bodybuilders and for treating erectile dysfunction. Maybe I could kill two birds with one stone.:cool:
       
      • Funny Funny x 12
      • Like Like x 2
      • Helpful Helpful x 1
    3. Gene Graves

      Gene Graves Member

      My doctor has really tried to help me with my tinnitus. I showed him the article in the Tinnitus magazine and the research to back it up and he said I cannot see that it would hurt to try pramipexole 0.125 mg at the dosage used for someone with Parkinson disease. That was about a month ago. I do believe it has helped reduce my tinnitus. I will continue to take it for a month or two to see what kind of results I may get.
       
      • Like Like x 9
      • Agree Agree x 1
      • Helpful Helpful x 1
    4. Jim
      Happy

      Jim Member Benefactor

      Location:
      San Francisco
      Tinnitus Since:
      04/2007
      Gene, thanks for the report. I'm interested to see how this goes for you in the longer term. Is your doc an ENT? Please keep us updated with your outcome.
       
    5. jazz
      No Mood

      jazz Member Benefactor

      Location:
      US
      Tinnitus Since:
      8/2012
      Cause of Tinnitus:
      eardrum rupture from virus; barotrauma from ETD
      This study looked at tinnitus from hearing loss associated with aging. It might not work for other types of hearing loss, such as noise-related--but it would not hurt to try the drug.

      If anyone tries this drug, please tell us and note what caused your tinnitus (noise, aging, barotrauma, a combination of factors, etc.)
       
      • Like Like x 1
    6. rtwombly
      Bookworm

      rtwombly Member

      Location:
      Southeast USA
      Tinnitus Since:
      01/2014
      Cause of Tinnitus:
      Unknown
      I did some research on this recently. The theory I read, dating back to 2009, is that as we get older, a change occurs to our ability to deal with oxidative stress affecting the DCN. The study specifically stated that the change makes the voltage-gated potassium channels subject more susceptible to dysfunction. It suggested that there might be a way to fix the sensitivity chemically. It wasn't a tinnitus study, just something about presbycusis, but it suggests to me that aging-, stress-, and noise-induced tinnitus are all really just STRESS-induced.

      Doesn't really suggest that pramipexole will be effective, but in my mind, the cause of tinnitus may not be as important a factor.
       
      • Agree Agree x 1
    7. Champ
      Woot

      Champ Member Benefactor

      Location:
      Boston, MA
      Tinnitus Since:
      01/2013
      Cause of Tinnitus:
      Acoustic trauma from headphones
      I wholeheartedly agree. The common theme is overexcited neurons.

      Quell the neurons that need quelling and the tinnitus will be lowered.
       
      • Agree Agree x 2
    8. Mic
      Buzzed

      Mic Member

      Tinnitus Since:
      -
      I know a person who took Pramipexole and it diminished/lowered their tinnitus effectively.

      The summary of the case is:
      • The dosage the man used was 0.25 mg pill 3x / day
      • He also used Amitriptyline as a med next to Pramipexole (this combination of meds could also be important for his experience)
      • The effect seemed to wear off after some time but let him experience real silence (ohhh that would be great...) a couple of times in the beginning (he had lived for 12 years with tinnitus till then)
      Hope this helps some of you.
       
      • Friendly Friendly x 1
    9. Cal18
      Nerdy

      Cal18 Member Benefactor Advocate

      Location:
      San Diego
      Tinnitus Since:
      12/2016
      Cause of Tinnitus:
      2010 / 2016 Both SSRI Withdrawal and Mild Hearing Loss
      • Helpful Helpful x 2
      • Informative Informative x 1
    10. EatMoTacos
      No Mood

      EatMoTacos Member Benefactor

      Tinnitus Since:
      07/2009
      Cause of Tinnitus:
      Loud Music
    11. Óscar PP

      Óscar PP Member

      Tinnitus Since:
      Nov 2020
      Cause of Tinnitus:
      Coronavirus
    12. ThomasRobert

      ThomasRobert Member Benefactor

      Location:
      ME
      Tinnitus Since:
      06/2019
      Cause of Tinnitus:
      Ototoxic
    13. Óscar PP

      Óscar PP Member

      Tinnitus Since:
      Nov 2020
      Cause of Tinnitus:
      Coronavirus
      So the Parkinson's drug that acts on dopamine is no good either?
       
      • Agree Agree x 1
    14. Cernuto
      Spaced

      Cernuto Member

      Tinnitus Since:
      2010
      Cause of Tinnitus:
      Noise Induced
      I tried both Mirapex (Pramipexole) and Levodopa. They didn't do anything at all for my tinnitus one way or the other.
       
      • Like Like x 1
      • Informative Informative x 1
    15. GBB

      GBB Member Hall of Fame

      Location:
      NYC
      Tinnitus Since:
      2016-2019 (Mild, Cured) 8/2020 (Severe)
      Cause of Tinnitus:
      Virus / Microsuction / Acoustic Trauma
      Pramipexole works for me.
       
Loading...

Share This Page