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Neramexane for Tinnitus

This study has been completed.
Sponsor:
ClinicalTrials.gov Identifier:
NCT00405886
First Posted: November 30, 2006
Last Update Posted: March 11, 2011
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Information provided by:
Merz Pharmaceuticals GmbH
  Purpose
Tinnitus is commonly referred to as "ringing of the ears" - the perception of sounds in the absence of an external source of acoustic signals. Tinnitus may represent a severe disease and symptoms include depression, sleeping difficulties, decreased sound tolerance and hearing loss. One hypothesis is that tinnitus is caused by an increased activity of NMDA glutamate and dysfunctional alpha9/alpha10 acetylcholine receptors in the inner ear and central nervous system. Neramexane may alleviate tinnitus symptoms due to its NMDA and alpha9/alpha10 nACh receptor blocking activity. The purpose of this study is to assess the safety and efficacy of Neramexane compared with placebo in patients with subjective tinnitus.

Condition Intervention Phase
Tinnitus Drug: Neramexane Drug: Placebo Phase 2

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: A Randomised, Double-Blind, Placebo-Controlled, Clinical Dose-Ranging Trial to Evaluate Efficacy and Safety of a NMDA Antagonist for Oral Administration in Patients With Subjective Tinnitus

Resource links provided by NLM:


Further study details as provided by Merz Pharmaceuticals GmbH:

Primary Outcome Measures:
  • Change from baseline in tinnitus severity at the endpoint visit [ Time Frame: Week 16 ]
  • Comparison of adverse events (type, severity, seriousness, frequency, relatedness) between treatment arms [ Time Frame: From baseline until week 20 ]

Enrollment: 431
Study Start Date: October 2005
Study Completion Date: March 2007
Primary Completion Date: March 2007 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Neramexane 25mg/d Drug: Neramexane
Oral tablets, duration: 16 weeks
Experimental: Neramexane 50mg/d Drug: Neramexane
Oral tablets, duration: 16 weeks
Experimental: Neramexane 75mg/d Drug: Neramexane
Oral tablets, duration: 16 weeks
Placebo Comparator: Placebo Drug: Placebo
Oral tablets, duration: 16 weeks

  Eligibility

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years to 65 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • main inclusion criterion: persistent, subjective, uni- or bilateral tinnitus

Exclusion Criteria:

  • main exclusion criterion: intermittent or pulsatile tinnitus
  Contacts and Locations
Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00405886


Locations
Austria
Vienna, Austria
Germany
Munich, Germany
Sponsors and Collaborators
Merz Pharmaceuticals GmbH
Investigators
Study Chair: Markus Suckfüll, MD PhD Ass. Prof. Ludwig-Maximilians - University of Munich
  More Information

Publications:
Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: Dr. Matthias Zerm, Manager Public Disclosure, Merz Pharmaceuticals GmbH
ClinicalTrials.gov Identifier: NCT00405886     History of Changes
Other Study ID Numbers: MRZ 92579-0508/1
First Submitted: November 29, 2006
First Posted: November 30, 2006
Last Update Posted: March 11, 2011
Last Verified: March 2011

Additional relevant MeSH terms:
Tinnitus
Hearing Disorders
Ear Diseases
Otorhinolaryngologic Diseases
Sensation Disorders
Neurologic Manifestations
Nervous System Diseases
Signs and Symptoms