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Accounts payable and accrued liabilities
9 Months Ended
Sep. 30, 2017
Payables and Accruals [Abstract]  
Accounts payable and accrued liabilities
Accounts payable and accrued liabilities

Accounts payable and accrued liabilities consisted of the following (in thousands):
 
September 30,
 
December 31,
 
2017
 
2016
 
 
 
 
Accounts payable
$
2,729

 
$
6,296

Accrued clinical, development and other expenses
6,080

 
5,743

Accrued compensation and benefits
2,644

 
2,923

Other current liabilities
2,127

 
40

 
$
13,580

 
$
15,002



As of September 30, 2017, the balance in other current liabilities included $2.1 million of proceeds received in connection with warrants exercised during the fourth quarter. See Note 9 for additional information.