Accounts Payable, Accrued Expenses and Other Current Liabilities

12 Months Ended

Dec. 31, 2015

Accounts Payable, Accrued Expenses and Other Current Liabilities

NOTE 9. ACCOUNTS PAYABLE, ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES

Accounts payable, accrued expenses and other current liabilities consisted of the following:

	December 31,
	2015		2014
Clinical and preclinical	$	48,975	$	31,069
Taxes payable		32,565		2,106
Payroll and payroll-related		29,215		33,272
Accounts payable		22,696		10,492
Royalties payable		20,665		13,582
Other payable to licensor		17,500		5,000
Accrued professional services and other current liabilities		14,282		8,909
Interest payable		305		1,698
Total	$	186,203	$	106,128

Accounts payable represents short-term liabilities for which the Company has received and processed a vendor invoice prior to the end of the reporting period. Accrued expenses and other current liabilities represent, among other things, compensation and related benefits to employees, royalties due to licensors of technologies, interest payable related to the Company’s Convertible Notes and Revolving Credit Facility, estimated amounts due to third-party vendors for services rendered prior to the end of the reporting period, invoices received from third-party vendors that have not yet been processed, taxes payable, and other accrued items.