| Cash and cash equivalents | 22.88M |
| Short-term investments | 97.3M |
| Prepaids and other current assets | |
| Total current assets | 135.83M |
| Property and equipment, net | 1.68M |
| Restricted investments and other assets | 0 |
| Total assets | 150.19M |
| Accounts payable | 3.01M |
| Accrued compensation | 5.12M |
| Accrued preclinical and clinical costs | 1.32M |
| Other accrued liabilities | |
| Deferred rent | |
| Deferred revenue | 1.13M |
| Total current liabilities | 17.92M |
| Deferred revenue | 9.45M |
| Commitments and contingencies | |
| Common stock, $0.001 par value; 60,000 shares authorized; 35,438 and 35,227 shares issued and outstanding at June 30, 2011 and December 31, 2010, respectively | 63K |
| Additional paid-in capital | 691.42M |
| Accumulated other comprehensive income (loss) | 106K |
| Accumulated deficit | -683.69M |
| Total stockholders' equity | 7.9M |
| Total liabilities and stockholders' equity | 150.19M |