About Us

Meet Prolong Pharmaceuticals

Prolong Pharmaceuticals is a clinical-stage biopharmaceutical leader focused on advancing innovative therapies to address complex diseases and critical unmet medical needs.

Headquartered in South Plainfield, New Jersey, Prolong is committed to identifying, developing, and commercializing novel biologics treat diseases and their associated comorbidities, improving patient outcomes while reducing healthcare burden and mortality.
Our Origin

Founded in 2005 as a research laboratory, Prolong has evolved into a mature, privately held biotechnology company with an active clinical development pipeline and large-scale cGMP manufacturing capabilities.

Our founders were among the pioneers of PEGylation, contributing to the first regulatory approval of a PEGylated protein therapeutic (Adagen®, Enzon, 1990).  
Since then, PEGylation has become a foundational drug delivery technology, enabling a broad range of therapies designed to improve outcomes in diseases such as hepatitis, kidney disease, and other serious conditions.
meet the team
transforming
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Innovating health
transforming lives
transforming
lives

Our Scientific Foundation - Transformative Medicine through Innovative Design

Building on decades of PEGylation expertise, Prolong developed PEGfinity™, a proprietary platform designed to enhance protein therapeutics through advanced engineering and precision optimization.  By integrating PEGylation with in-silico analytical methods, PEGfinity™ enables: Comprehensive and efficient protein modification; Rapid generation of optimized drug candidates; Iterative structure–function analysis tailored to each protein and clinical indication  

Be part of Our journey

Join us in advancing treatments for severe and life-threatening conditions.