The HGF/MET neurotrophic system plays a critical role in the maintenance and repair of connections in the brain. Enhanced signaling along this pathway has the potential to reduce inflammation, slow neurodegeneration, and provide neuroprotection. Athira Pharma is pursuing small molecule drugs that target this pathway to address a range of neurodegenerative conditions. The company is currently conducting a phase 2/3 study of its lead therapeutic candidate, fosgonimeton, in mild-to-moderate Alzheimer’s disease. But the study comes after the experimental therapy failed to meet its primary endpoint in a phase 2 study in Alzheimer’s disease and a phase 2 study in Parkinson’s disease dementia and dementia with Lewy bodies. We spoke to Rachel Lenington, chief operating officer of Athira Pharma, about the case for targeting the HGF/MET neurotrophic system in neurodegenerative diseases, how its experimental therapy fosgonimeton works, and why its continuing to pursue the therapy despite earlier failures.