Stealth BioTherapeutics
Biotechnology ResearchMassachusetts, United States51-200 Employees
Stealth BioTherapeutics is a mid-sized biotechnology company based in Needham Heights, Massachusetts, focused on therapies for mitochondrial dysfunction linked to genetic mitochondrial diseases and aging-related conditions. It collaborates with patients and advocacy organizations to understand patient journeys and raise awareness of unmet medical needs in these areas. The company works with leading academic and medical institutions and clinical thought leaders to develop first-generation, targeted therapies addressing mitochondrial dysfunction in both rare genetic diseases and common aging-related diseases. Through these collaborations, Stealth BioTherapeutics advances a platform of late-stage clinical programs alongside a growing pipeline of candidates. In October 2025 the company launched the Mito Assist Patient Support Program to improve access to FORZINITY (elamipretide) injections. Stealth BioTherapeutics operates as a commercial-stage biotechnology firm dedicated to developing and pursuing therapies for mitochondrial dysfunction, and its activity includes engagement with industry events and leadership appointments as part of its ongoing program development.