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$790M Deal Reached For Potential Psoriasis Treatment, AST-005

Purdue Pharma and Exicure have announced a strategic research alliance and licensing agreement for AST-005, a potential treatment for psoriasis and other diseases amenable to a gene regulation approach by Exicure called spherical nucleic acid (SNA) technology.

Purdue will own full global rights to AST-005, among other collaboration targets.

Together with an upfront payment and equity investment, Exicure could be paid as much as $790 million.

SNAs are immune-modulatory agents that allow for highly targeted gene regulation. The technology is based on the spherical, dense and radial architecture of these specific nucleic acids, which help overcome one of the most difficult obstacles to nucleic acid-based therapies: delivering therapeutics into cells and tissues safely and effectively, without the need for additional physical or chemical aids.

AST-005 is an investigational SNA that targets tumor necrosis factor (TNF), a pro-inflammatory cytokine shown to play a key role in the development of psoriasis. The treatment is applied as a topical gel.

In preclinical studies, AST-005 led to a significant decrease in TNF in viable human psoriatic skin samples.

In a recently completed Phase 1 trial, launched last April, 15 volunteers with chronic plaque psoriasis received AST-005 for ten days. It was the first trial with AST-005, based on Exicure’s SNA.

The Phase 1 trial evaluated the safety and tolerability of AST-005, and all requirements were met. Findings showed that treatment with the highest dosing strength of AST-005 resulted in a statistically significant decrease in TNF expression in psoriatic skin.

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About Dr. J. Kim

Dr Kim developed (and is continuing to develop) dermatology research news as we way from dermatologists to stay on top of the latest advances in the field of dermatology.

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