GERMANTOWN, Md., March 23, 2021 /PRNewswire/ -- Precigen, Inc., a biopharmaceutical company specializing in the development of innovative gene and cell therapies to improve the lives of patients, today announced that the first patient has been dosed in the Phase I study of PRGN-2012, a first-in-class, investigational off-the-shelf (OTS) AdenoVerse™ immunotherapy in adult patients with recurrent respiratory papillomatosis (RRP) (clinical trial identifier: NCT04724980). The US Food and Drug Administration recently granted Orphan Drug Designation for PRGN-2012 in RRP in March 2021.
PRGN-2012 is an innovative therapeutic vaccine with optimized antigen design that uses Precigen's gorilla adenovector technology, part of Precigen's proprietary AdenoVerse platform, to elicit immune responses directed against cells infected with HPV 6 or HPV 11. Gorilla adenovectors have numerous advantages, including the ability for repeat administration, the inability to replicate in vivo, which may improve safety, and the ability to deliver large payload capacity. In preclinical models, PRGN-2012 has demonstrated strong and specific immune response against HPV 6 and HPV 11.
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