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Accrued Expenses and Other Current Liabilities
6 Months Ended
Jun. 30, 2017
Payables and Accruals [Abstract]  
Accrued Expenses and Other Current Liabilities
Accrued Expenses and Other Current Liabilities

Accrued expenses and other current liabilities consist of the following (in thousands):

 
June 30, 2017
 
December 31, 2016
Clinical trial costs
$
899

 
$
3,088

Professional fees
660

 
229

Compensation and related benefits
976

 
975

Interest expense
99

 

Accrued expenses and other current liabilities
$
2,634

 
$
4,292