CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Current assets:
Cash	$ 217,452	$ 131,468
Prepaid expenses and other current assets	10,150	5,197
Total current assets	227,602	136,665
Property and equipment, net	3,792	2,344
Equity method investment	7,853	7,847
Other assets	43	32
Total assets	239,290	146,888
Current liabilities:
Accounts payable	4,027	4,721
Accrued expenses	8,728	4,708
Total current liabilities	12,755	9,429
Liability related to sale of future royalties, net	106,282	0
Warrant liability	0	4,021
Other long-term liabilities	1,423	1,467
Total liabilities	120,460	14,917
Commitments and contingencies
Shareholders’ equity:
Common shares, no par value; 200,000,000 shares authorized as of June 30, 2018 and December 31, 2017; 40,094,291 and 36,057,748 shares issued and outstanding as of June 30, 2018 and December 31, 2017, respectively	413,225	311,061
Additional paid-in capital	32,982	23,556
Accumulated deficit	(327,377)	(202,646)
Total shareholders’ equity	118,830	131,971
Total liabilities and shareholders’ equity	$ 239,290	$ 146,888