One of the challenges with treating Alzheimer’s disease is diagnosing patients early enough in the course of its progression to have a meaningful impact with treatments. Sunbird Bio said it can accurately detect and differentiate specific proteins that aggregate and signal the presence of Alzheimer's disease, with a simple blood draw. It said its test in development could address the growing need for more sensitive, reliable, non-invasive diagnostic tests to accelerate drug development and enhance patient care. We spoke to John McDonough, executive chair and CEO of Sunbird Bio, about its diagnostic test for Alzheimer’s disease, how it has the potential to impact treatments and outcomes for millions of patients with the condition, and how its merger with Glympse Bio is expected to push it into new markets.