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Accrued Expenses and Other Current Liabilities
9 Months Ended
Sep. 30, 2015
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):

 
September 30, 2015
 
December 31, 2014
Clinical trial costs
$
5,179

 
$
6,967

Compensation and related benefits
992

 
1,040

Professional fees
1,121

 
821

Interest expense
37

 
57

Accrued expenses and other current liabilities
$
7,329

 
$
8,885