PharmatrophiX (PTX) is a privately owned, clinical-stage biopharmaceutical company dedicated to developing disease-modifying small molecule drugs that target the mechanisms underlying neurodegenerative and other disorders.

Based in Menlo Park, CA, PTX operates as a virtual biotech company, managing drug development through contracted work. This virtual model is considered an effective way to reduce overhead costs while efficiently meeting drug development milestones.

Funding for the company and its drug development efforts has come from private investors and peer-reviewed grants.