Otonomy to present OTO-413 data at SfN
Otonomy is presenting data on the therapeutic potential of OTO-413, an otic sustained-exposure formulation of brain-derived neurotrophic factor, or BDNF. These promising preclinical data, demonstrating the potential of intratympanic BDNF to repair cochlear synaptopathy, an underlying cause of hearing loss including speech-in-noise hearing difficulty, are being presented as part of the Society for Neuroscience, or SfN. Recent scientific advances have shown that the loss of synaptic connections between inner ear hair cells and spiral ganglion neurons contributes to hearing impairment. This cochlear synaptopathy is proposed as an underlying pathology in age-related and noise-induced hearing loss and is also believed to contribute to the common difficulty of hearing speech in the presence of background noise. Overall, there are more than 50 million people in the U.S. with acquired hearing loss including a significant proportion experiencing speech-in-noise hearing difficulty. Results from these studies demonstrated that a single intratympanic administration of OTO-413 provided sustained-exposure of BDNF to the inner ear and that OTO-413 improved both the structural and functional deficits of cochlear synaptopathy in an animal model.