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Accrued Expenses
9 Months Ended
Sep. 30, 2018
Payables And Accruals [Abstract]  
Accrued Expenses

4. Accrued Expenses

Accrued expenses consisted of the following as of September 30, 2018 and December 31, 2017:

 

 

 

September 30,

 

 

December 31,

 

 

 

2018

 

 

2017

 

 

 

(in thousands)

 

Accrued research and development expenses

 

$

2,780

 

 

$

1,647

 

Accrued payroll and related expenses

 

 

1,651

 

 

 

2,229

 

Accrued professional fees

 

 

290

 

 

 

292

 

Accrued other

 

 

180

 

 

 

105

 

 

 

$

4,901

 

 

$

4,273