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Accrued Expenses
6 Months Ended
Jun. 30, 2015
Payables and Accruals [Abstract]  
Accrued Expenses

5. Accrued Expenses

The following is a summary of the Company’s accrued expenses:

 

     June 30,
2015
     December 31,
2014
 

Accrued research and development expenses

   $ 2,239,334       $ 2,726,511   

Accrued license and milestone fees

     2,000,000         1,500,000   

Accrued consulting and other professional fees

     199,376         77,273   

Other accrued expenses

     453,857         151,415   

Accrued employee benefits

     311,829         168,009   

Accrued taxes

     —           112,511   
  

 

 

    

 

 

 

Accrued expenses

   $ 5,204,396       $ 4,735,719