Accounts payable, accrued liabilities and long-term liabilities

9 Months Ended

Sep. 30, 2019

Payables and Accruals [Abstract]

Accounts payable, accrued liabilities and long-term liabilities

Accounts payable, accrued liabilities and long-term liabilities

Accounts payable and accrued liabilities consisted of the following (in thousands):

	September 30,		December 31,
	2019		2018
Accounts payable	$	12,568	$	8,531
Accrued clinical expense	14,687		10,154
Accrued development and other expense	2,613		1,243
Accrued compensation and benefits	4,821		5,847
	$	34,689	$	25,775

The long-term liabilities balance of $0.9 million as of September 30, 2019 consisted primarily of clinical trial-related liabilities. As of December 31, 2018, the long-term liabilities balance of $0.7 million consisted of $0.1 million in deferred revenue and $0.6 million in other liabilities.