Revenue

9 Months Ended

Sep. 30, 2019

Revenue From Contract With Customer [Abstract]

Revenue

10. Revenue:

On September 9, 2019, the Company entered into an agreement with Flexion pursuant to which Flexion acquired all rights with respect to XEN402, and a related compound (collectively “XEN402”), including certain regulatory documentation, intellectual property rights, reports, data and all quantities of XEN402 owned or controlled by the Company. XEN402 is a sodium channel inhibitor that the Company had previously developed with its collaborator Teva.

Flexion paid the Company upfront consideration of $3,000. In addition, the Company will also be eligible for various CMC, development and regulatory milestone payments of up to $9,000 through initiation of a Phase 2 proof-of-concept clinical trial, of which $500 related to the initiation of the first GLP toxicology study has been included in the recognized transaction price at September 30, 2019 in accordance with ASC 606 as the outcome is considered highly probable of occurring. Following successful proof-of-concept, the Company may be entitled to future clinical development and global regulatory approval milestone payments of up to $40,750, commercial milestone payments of up to $75,000, as well as future royalties ranging from mid-single to low-double digit percentages. These additional amounts will be recognized as determinable.