7. License Agreements	3 Months Ended
Mar. 31, 2022
Research and Development [Abstract]
7. License Agreements	7. License Agreements Specific information pertaining to each of the Company’s significant license agreements is discussed in its audited financial statements included in the Annual Report for the years ended December 31, 2021 and 2020, including their nature and purpose, the significant rights and obligations of the parties, and specific accounting policy elections. The following represents updates for the three months ended March 31, 2022, if applicable, to the Company’s significant license agreements: Acquisition of Assets from Phoenixus AG f/k/a Vyera Pharmaceuticals, AG and Turing Pharmaceuticals AG (“Vyera”) See Note 13 for a subsequent event related to the Vyera Purchase Agreement. Acquisition of License from Stuart Weg, MD On August 29, 2019, the Company entered into an amended and restated exclusive license agreement with Stuart Weg, M.D. (the “Weg License Agreement”), pursuant to which the Company was granted an exclusive worldwide license to certain intellectual property and regulatory materials related to SLS-002. Under the terms of the Weg License Agreement, the Company paid an upfront license fee of $75,000 upon execution of the agreement. The Company agreed to pay additional consideration to Dr. Weg as follows: (i) $0.1 million on January 2, 2020, (ii) $0.125 million on January 2, 2021, and (iii) in the event the FDA has not approved an NDA for a product containing ketamine in any dosage on or before December 31, 2021, $0.2 million on January 2, 2022. The Company paid the required $0.1 million on January 2, 2020, $0.125 million on January 2, 2021 and $0.2 million on January 2, 2022. The remaining potential regulatory and commercial milestones are not yet considered probable, and no other milestone payments have been accrued at March 31, 2022.

7. License Agreements

3 Months Ended

Mar. 31, 2022

7. License Agreements

Specific information pertaining to each of the Company’s significant license agreements is discussed in its audited financial statements included in the Annual Report for the years ended December 31, 2021 and 2020, including their nature and purpose, the significant rights and obligations of the parties, and specific accounting policy elections. The following represents updates for the three months ended March 31, 2022, if applicable, to the Company’s significant license agreements:

Acquisition of Assets from Phoenixus AG f/k/a Vyera Pharmaceuticals, AG and Turing Pharmaceuticals AG (“Vyera”)

See Note 13 for a subsequent event related to the Vyera Purchase Agreement.

Acquisition of License from Stuart Weg, MD

On August 29, 2019, the Company entered into an amended and restated exclusive license agreement with Stuart Weg, M.D. (the “Weg License Agreement”), pursuant to which the Company was granted an exclusive worldwide license to certain intellectual property and regulatory materials related to SLS-002. Under the terms of the Weg License Agreement, the Company paid an upfront license fee of $75,000 upon execution of the agreement. The Company agreed to pay additional consideration to Dr. Weg as follows: (i) $0.1 million on January 2, 2020, (ii) $0.125 million on January 2, 2021, and (iii) in the event the FDA has not approved an NDA for a product containing ketamine in any dosage on or before December 31, 2021, $0.2 million on January 2, 2022. The Company paid the required $0.1 million on January 2, 2020, $0.125 million on January 2, 2021 and $0.2 million on January 2, 2022.

The remaining potential regulatory and commercial milestones are not yet considered probable, and no other milestone payments have been accrued at March 31, 2022.