we've enrolled our first participant in our clinical trial testing a combination treatment for age-related central hearing loss.

Hearing loss affects hundreds of millions of people worldwide, yet central auditory processing — what happens aftersound reaches the ear — remains vastly undertreated. We're here to change that.

We're proud to be conducting this trial at the University of Colorado Anschutz Medical Campus, one of the world's top research hospitals (Nature Index 2025). Their expertise and infrastructure are invaluable as we push this science forward.

To our first participant: thank you. You're not just part of a study, you're part of something that could help millions hear more clearly.

Interested in participating? Now enrollinG.

volunteer@parley-neuro.com

More information here or at clinicaltrials.gov NCT07304024

Why do some people have difficulty having a conversation
in a busy restaurant?

Have you ever had trouble following a conversation in a loud and crowded place such as a busy restaurant or cafeteria? And you were not sure why because you can hear just fine in less noisy environments?

Unfortunately, many listeners have that problem, especially as they age. In many cases the inability to follow a conversation in background noise has nothing to do with the ability to perceive the sound (which is done by the ears) but rather the ability to isolate the sound from background noise (which is done by the brain). 

Our research lab at the University of Colorado School of Medicine has studied this problem for many years both in human subjects and animal models (jump to discussion of lab research projects). We discuss this question and related topics in a series of jargon-free blog posts. Check back regularly for new articles or follow us on social media to get notifications when something new is posted.

List of Blog Posts: