Accrued Expenses (Tables)

3 Months Ended

Mar. 31, 2018

Accrued Expenses

Schedule of accrued expenses

	March 31,		December 31,
	2018		2017
	(in thousands)
Clinical trials	$	1,149	$	2,116
Professional fees	325		390
Payroll and related expenses	241		955
Accrued expenses	$	1,715	$	3,461