The efficacy of incobotulinum toxin A injections for treatment of tinnitus: a randomized controlled trial


This study is a double blinded crossover clinical trial evaluating the safety and effectiveness of incobotulinum toxin A or a placebo (before crossover) injections for the treatment of tinnitus.

I'm interested

Male or Female
18 years and over
This study is NOT accepting healthy volunteers
Inclusion Criteria:

• unilateral or bilateral tinnitus present for at least 2 months
• score greater than 16 on the Tinnitus Handicap Inventory
Exclusion Criteria:

• known hypersensitivity to any botulinum toxin product
• received botulinum toxin for any medical reason in the past 4 months
• infection at proposed injection sites
• scheduled for neurological or otological surgery
• significant psychiatric history or associated diagnosis of major depression
• pregnant or breast feeding

Ear, Nose & Throat


Stephanie Standal -
Stephanie Standal