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LICENSE AGREEMENT
12 Months Ended
Dec. 31, 2022
License Agreement Disclosure [Abstract]  
LICENSE AGREEMENT

4. LICENSE AGREEMENT

Janssen Pharmaceuticals, Inc. License Agreement

On September 15, 2016, we entered into the License Agreement with Janssen Pharmaceuticals whereby we granted to Janssen Pharmaceuticals an exclusive worldwide license, or the Exclusive License, under our proprietary patents for the research, development and commercialization of products based on specialized oligonucleotide backbone chemistry and novel amidates for ribonucleic acid interference. In addition to the Exclusive License, we granted to Janssen Pharmaceuticals a non‑exclusive worldwide license, or the Non‑Exclusive License, under our patents covering the synthesis of monomers. This agreement was terminated effective April 2021.