Accrued Expenses

6 Months Ended

Jun. 30, 2019

Payables and Accruals [Abstract]

Accrued Expenses

Accrued Expenses

Accrued expenses consisted of the following:

	As of June 30, 2019		As of December 31, 2018
Accrued development milestones payable (Note 13)	$	13,500	$	—
Accrued employee compensation and benefits	2,147		108
Accrued clinical trial costs	8,145		6,753
Accrued professional fees	6,767		1,636
Other	608		285
	$	31,167	$	8,782