Summary of significant accounting policies (Tables)

12 Months Ended

Dec. 31, 2020

Summary of significant accounting policies

Schedule of useful lives of property and equipment

Asset category	Estimates useful life
Lab equipment	5 years
Leasehold improvements	Lesser of lease term or 5 years
Computer equipment	3 years
Office equipment	5 years
Furniture and fixtures	5 years

Schedule of potentially dilutive securities have been excluded from the computation of diluted weighted-average shares of common stock outstanding, as they would be anti-dilutive

The following potentially dilutive securities have been excluded from the computation of diluted weighted-average shares of common stock outstanding, as they would be anti-dilutive:

	Year ended December 31,
	2020	2019
Stock options(1)	1,472,840	583,622
Common stock warrants(1)	1,035,196	—
Convertible preferred stock(1)	—	4,443,260
	2,508,036	5,026,882

(1) Represents common stock equivalents