Condensed Consolidated Statements of Operations - USD ($)
$ in Thousands |
3 Months Ended |
6 Months Ended |
Jun. 30, 2015 |
Jun. 30, 2014 |
Jun. 30, 2015 |
Jun. 30, 2014 |
| Operating expenses: |
|
|
|
|
| Research and development |
$ 4,738
|
$ 12,717
|
$ 10,034
|
$ 14,544
|
| General and administrative |
1,874
|
791
|
3,315
|
1,284
|
| Total operating expenses |
6,612
|
13,508
|
13,349
|
15,828
|
| Loss from operations |
(6,612)
|
(13,508)
|
(13,349)
|
(15,828)
|
| Other income (expense), net: |
|
|
|
|
| Change in fair value of preferred stock warrants |
(8,630)
|
(347)
|
(9,956)
|
(496)
|
| Other income (expense) |
(6)
|
31
|
19
|
33
|
| Total other income (expense), net |
(8,636)
|
(316)
|
(9,937)
|
(463)
|
| Loss before provision for income taxes |
(15,248)
|
(13,824)
|
(23,286)
|
(16,291)
|
| Provision for income tax |
1
|
|
11
|
|
| Net loss |
(15,249)
|
(13,824)
|
(23,297)
|
(16,291)
|
| Adjustment to redemption value on redeemable convertible preferred stock |
(140,880)
|
(36,833)
|
(151,885)
|
(39,275)
|
| Net loss attributable to common stockholders |
$ (156,129)
|
$ (50,657)
|
$ (175,182)
|
$ (55,566)
|
| Net loss per share attributable to common stockholders, basic and diluted (Note 3) |
$ (104.10)
|
$ (55.04)
|
$ (117.35)
|
$ (62.72)
|
| Weighted-average shares used in computing net loss per share attributable to common stockholders, basic and diluted (Note 3) |
1,499,840
|
920,441
|
1,492,764
|
885,872
|