| Dec'19 | Dec'18 | Dec'17 | Dec'16 | Dec'15 | ||
|---|---|---|---|---|---|---|
Operating expenses: | ||||||
Research and development | ||||||
37,244 | 26,376 | 15,519 | 20,103 | 11,540 | ||
General and administrative | ||||||
9,676 | 9,217 | 5,431 | 4,083 | 2,365 | ||
Restructuring charges | ||||||
605 | - | - | - | - | ||
Total operating expenses | ||||||
47,525 | 35,593 | 20,950 | 24,186 | - | ||
Total operating expenses | ||||||
- | - | - | - | 13,905 | ||
Other income (expense): | ||||||
Interest income (expense), net | ||||||
270 | 575 | -443 | -200 | -335 | ||
Other expense, net | ||||||
-84 | -13 | -257 | -121 | -7 | ||
Loss on extinguishment of debt | ||||||
- | -617 | - | - | - | ||
Other income (expense), net | ||||||
186 | -55 | -700 | -321 | -342 | ||
Net loss | ||||||
-47,339 | -35,648 | -21,650 | -24,507 | -14,247 | ||
Net loss per share attributable to common stockholders—basic and diluted | ||||||
-2.13 | -1.72 | -4.80 | -18.35 | -11.35 | ||
Weighted-average common shares outstanding—basic and diluted | ||||||
22,180 | 20,741 | 4,520 | 1,339 | 1,258 | ||
Net loss | ||||||
-47,339 | -35,648 | -21,650 | -24,507 | -14,247 | ||
Unrealized loss on investments | ||||||
- | - | - | -2 | - | ||
Total other comprehensive loss | ||||||
- | - | - | -2 | - | ||
Comprehensive loss | ||||||
-47,339 | -35,648 | -21,650 | -24,509 | -14,247 | ||