Accrued Expenses

3 Months Ended

Mar. 31, 2019

Accrued Expenses

Accrued Expenses

4. Accrued Expenses

At March 31, 2019 and December 31, 2018 accrued expenses consisted of the following (in thousands):

	March 31,		December 31,
	2019		2018
Payroll and related costs	$	1,243	$	1,364
Clinical trials and drug development		2,771		2,781
Professional fees		356		204
Other		375		88
Total accrued expenses	$	4,745	$	4,437