Accrued Expenses

3 Months Ended

Mar. 31, 2019

Payables and Accruals [Abstract]

Accrued Expenses

Accrued Expenses

Accrued expenses consisted of the following:

	As of March 31, 2019		As of December 31, 2018
Accrued development milestones payable (Note 12)	$	6,000	$	—
Accrued employee compensation and benefits	1,046		108
Accrued clinical trial costs	3,939		6,753
Accrued professional fees	3,758		1,636
Other	740		285
	$	15,483	$	8,782