Revenue

3 Months Ended

Mar. 31, 2023

Revenue From Contract With Customer [Abstract]

Revenue

9.Revenue:

Revenue was as follows for the three months ended March 31, 2023 and 2022:

	Three Months Ended March 31,
	2023		2022
Neurocrine Biosciences:
Recognition of the transaction price	$	—	$	372
Research and development services		—		1,270
Milestone payments		—		7,124
Total revenue	$	—	$	8,766

In December 2019, the Company entered into the Neurocrine Collaboration Agreement with Neurocrine Biosciences. Pursuant to this agreement, the Company granted an exclusive license to XEN901, now known as NBI-921352, and an exclusive license to pre-clinical compounds for development, XEN393, XPC’535 and XPC’391 (collectively, the “DTCs”). The agreement also includes a two-year research collaboration to discover, identify and develop additional novel Nav1.6 and Nav1.2/1.6 inhibitors (“Research Compounds”). The Company and Neurocrine Biosciences are collaborating on the conduct of two collaboration programs: (a) a joint research collaboration to discover, identify and preclinically develop Research Compounds (the “Research Program”), which completed in June 2022, and (b) a collaborative development program for NBI-921352 and two DTCs selected by the joint steering committee (the “Initial Development Program”).

At execution of the agreement, Neurocrine Biosciences paid the Company an upfront cash payment of $30,000 and a $20,000 equity investment in the Company. The equity investment was measured at fair value of $16,667 on the date of issuance and the resulting premium of $3,333, together with the upfront cash payment totaling $33,333, was the transaction price of the arrangement for allocation to certain performance obligations under the agreement. None of the at-risk substantive performance milestones, including development, regulatory and sales-based milestones, were included in the transaction price at the inception of the agreement, as all milestone amounts are outside the control of the Company and contingent upon Neurocrine Biosciences’s efforts and success in future clinical trials. The overall transaction price of the arrangement was measured and allocated to certain performance obligations and revenue was recognized as those performance obligations were performed; all such performance obligations were completed as of March 2022.

The Neurocrine Collaboration Agreement also includes research and development services for the Research Program and Initial Development Program to be performed on behalf of Neurocrine Biosciences. These services were excluded from the initial transaction price allocation because the consideration and performance were contingent upon Neurocrine Biosciences requesting performance of the services and these services were priced at an estimated fair value. During the three months ended March 31, 2022, the Company recognized $1,270 of revenue for research and development services provided during the period.

In January 2022, based on the receipt of the U.S. Food and Drug Administration’s full IND acceptance for NBI-921352, the Company received an aggregate milestone payment of $15,000 in the form of $6,750 in cash and a $8,250 equity investment in the Company (note 8a). The equity investment was measured at fair value of $7,876 on the date of issuance and the resulting premium of $374, with the cash payment of $6,750, was recognized as revenue in the period as the Company did not have any remaining performance obligations in relation to this milestone on the date it was achieved.

The Company is eligible to receive pre-commercial and commercial milestone payments with respect to the licensed products totaling up to an additional $1,667,500, comprised of up to $1,067,500 in additional development and regulatory milestone payments related to NBI-921352 and other licensed Nav1.6 or Nav1.2/1.6 inhibitor products, and up to $600,000 in additional sales-based milestone payments for multiple products. In addition, the Company is eligible to receive royalties on net sales in and outside the U.S., ranging from (a) for NBI-921352, a low double-digit percentage to a mid-teen percentage and a high-single digit percentage to low double-digit percentage, respectively; (b) for DTCs, a high-single digit percentage to a low double-digit percentage and a mid-single digit percentage to a high-single digit percentage, respectively; and (c) for Research Compounds, a mid-single digit percentage to a high-single digit percentage and a tiered mid-single digit percentage, respectively. Royalty rates are subject to customary reductions. These additional amounts will be recognized as determinable. The Company has an option to co-fund 50% of the development costs of NBI-921352 or another product candidate in the U.S., exercisable upon achievement of certain milestones, in exchange for increased U.S. royalties. The Company has not exercised this option as of March 31, 2023.