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Taste Disturbance clinical trials

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

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NCT ID: NCT01584011 Recruiting - Taste Disturbance Clinical Trials

Taste Disorders in Middle Ear Disease and After Middle Ear Surgery

Start date: January 2010
Phase: N/A
Study type: Observational

Objectives To evaluate the impact of taste disturbance in different types of chronic middle ear diseases and after middle ear surgery. Hypothesis That patients with chronic otitis media and cholesteatoma has taste disturbance already before surgery due to the disease itself, of course depending on degree of the disease. That patients with otosclerosis, has a normal nerve function before surgery. That patients with normal taste before surgery are more likely to notices a taste disturbance. That nerve in continuity after surgery, even if it is maltreated, gives less taste disturbance than a divided nerve. Methods A clinical study has been launched that measures taste function with two different methods for taste measurements, electrogustometry (EGM) and the filter paper disc method (FPD) before and after middle ear surgery in patients operated with middle ear surgery because of otosclerosis, chronic otitis media and cholesteatoma. The investigators plan to include 120 patients in this study. A parallel study of the patients own experience of the symptom has also been launched were the patients answer a questionary and a quality of life document. The investigators plan to include 300 patients in this study. A histological study where specimens of CTN from healthy ears and from ears with chronic disease will be investigated with electron microscopy has also started.