On April 12, 2022 OncoNano Medicine, Inc. reported positive results from the company’s ON-BOARD pH-sensitive nanoparticle platform (Press release, OncoNano Medicine, APR 12, 2022, View Source [SID1234612088]). The data, presented at the American Association for Cancer Research (AACR) (Free AACR Whitepaper) Annual Meeting 2022, demonstrate that the clinically validated ON-BOARD platform has the potential to be a universal tool for tumor specific activation and the efficient delivery of proteins for an improved therapeutic index.
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"Our ON-BOARD micelle platform is designed to efficiently carry a broad range of payloads to the tumor microenvironment. Capable of being tuned to deliver either small molecules or biologics, the ON-BOARD platform has the potential to be a universal tool for targeted delivery of therapeutics to a range of cancers," said Tian Zhao, Ph.D., Vice President of Research & Development for OncoNano Medicine, Inc. "We are pleased with the positive data from our research efforts to encapsulate therapeutic antibodies with our ON-BOARD delivery technology and look forward to the further development of protein payloads with an improved therapeutic index."
A variety of biosimilar monoclonal antibodies including those of atezolizumab, cetuximab, pembrolizumab, trastuzumab and ipilimumab were encapsulated by the ON-BOARD platform. The findings indicate that ON-BOARD demonstrated:
Encapsulation of antibodies without additional modification of the original antibody
Encapsulation efficiency ranging from 50-100%
Formulations characterized as uniformly distributed particles < 100nm in size with good stability
Over a 100-fold activation window between the acid-activated and intact formulations based on in vitro assessment by cell-based reporter assays
pH-dependent activation that was further confirmed by affinity and binding assay
Tumor specific accumulation that was demonstrated by a biodistribution study
Presentation Overview
TITLE:
Encapsulating therapeutic antibodies for tumor specific activation and delivery using a clinically validated pH-sensitive nanoparticle platform
PRESENTER:
Jason Miller, Ph.D., Associate Director, Research Pipeline Development, OncoNano Medicine