Sorrento Therapeutics to acquire San Diego-based Concortis Biosystems

Published on November 14, 2013 at 8:31 AM · No Comments

Sorrento Therapeutics, Inc. (NASDAQ: SRNE; Sorrento) announced today the entry into a definitive agreement to acquire San Diego-based Concortis Biosystems, Corp. in a deal that provides Sorrento with a comprehensive technology platform for generation of antibody drug conjugates (ADC).  Under the terms of the agreement dated November 11, 2013, subject to satisfaction of certain closing conditions, upon closing, Sorrento will issue an aggregate of 1,331,978 shares of its common stock to the Concortis shareholders.

This acquisition will enable Sorrento to utilize the antibodies identified from its G-MAB® library along with Concortis' conjugation technologies and novel toxins to create a new generation of ADCs.  Concortis' proprietary C-lock™ and K-lock™ conjugation chemistries enable site-specific conjugation of toxins to the antibody, which will produce homogeneous ADCs with well-defined drug antibody ratios (DAR).  In contrast, approved ADCs are a heterogeneous mixture with different DARs.  This could potentially lead to better ADC stability and pharmacokinetics while reducing off-target effects compared to existing ADCs and therefore, improved therapeutic efficacy and treatment safety.

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