Organization and Business |
12 Months Ended |
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Dec. 31, 2022 | |
Organization, Consolidation and Presentation of Financial Statements [Abstract] | |
Organization and Business | Organization and Business Supernus Pharmaceuticals, Inc. (the Company) was incorporated in Delaware and commenced operations in 2005. The Company is a biopharmaceutical company focused on developing and commercializing products for the treatment of central nervous system (CNS) diseases. The Company's diverse neuroscience portfolio includes approved treatments for epilepsy, migraine, attention-deficit hyperactivity disorder (ADHD), hypomobility in Parkinson's Disease (PD), cervical dystonia, chronic sialorrhea, dyskinesia in PD patients receiving levodopa-based therapy, and drug induced extrapyramidal reactions in adult patients. The Company is developing a broad range of novel CNS product candidates including new potential treatments for hypomobility in PD, epilepsy, depression, and other CNS disorders. The Company has eight commercial products: Trokendi XR®, Oxtellar XR®, Qelbree®, APOKYN®, XADAGO®, MYOBLOC®, GOCOVRI®, and Osmolex ER®. In addition, SPN-830 (apomorphine infusion device) is a late-stage drug/device combination product candidate for the continuous treatment of motor fluctuations ("off" episodes) in PD patients that are not adequately controlled with oral levodopa and one or more adjunct PD medications. Adamas Acquisition and Reorganization On October 10, 2021, the Company entered into an Agreement and Plan of Merger by and among the Company, Adamas Pharmaceuticals, Inc. (Adamas) and Supernus Reef, Inc., a Delaware corporation and a wholly-owned subsidiary of the Company (Purchaser) (Adamas Agreement). On November 24, 2021 (the Closing Date), the Company completed its purchase of all of the outstanding equity of Adamas, pursuant to the Adamas Agreement dated October 10, 2021, and the Purchaser was merged with and into Adamas (the Merger), with Adamas continuing as the surviving corporation in the Merger as a wholly-owned subsidiary of the Company (Adamas Acquisition). On the Closing Date, Adamas owned two marketed products: GOCOVRI (amantadine) extended-release capsules, the first and only FDA approved medicine indicated for the treatment of both "off" episodes and dyskinesia in patients with PD receiving levodopa-based therapy and as an adjunctive treatment to levodopa/carbidopa in patients with PD experiencing "off" episodes; and Osmolex ER (amantadine) extended-release tablets, approved for the treatment of PD and drug-induced extrapyramidal reactions in adult patients. Adamas also owns the right to receive royalties from Allergan plc for sales of Namzaric (memantine hydrochloride extended-release and donepezil hydrochloride) in the U.S. In the first quarter of 2022 and subsequent to the Adamas Acquisition, the Company completed a reorganization of the Adamas legal entities in an effort to obtain operational, legal and other benefits that also resulted in certain state tax efficiencies. The reorganization had no effect on the consolidated financial statements other than certain state tax efficiencies. (See Note 12, Income Taxes.)
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