Accrued Expenses

12 Months Ended

Dec. 31, 2011

Accrued Expenses

6. Accrued Expenses

Accrued expenses consist of the following:

	December 31,
(in thousands)	2011		2010
Professional services	$	1,131	$	408
Clinical consulting services		6,913		1,162
Preclinical services		1,093		—
Manufacturing services		767		121
Accrued vacation		307		186
Other consulting services		347		—
Payroll taxes		263		249
Employee compensation		—		412
Accrued expenses	$	10,821	$	2,538