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Common Stock (Tables)
12 Months Ended
Dec. 31, 2022
Equity [Abstract]  
Summary of Common Stock Reserved for Future Issuance

As of December 31, 2022 and 2021, the Company has reserved the following shares of common stock for future issuance:

 

 

 

December 31,

 

 

 

2022

 

 

2021

 

Shares reserved for exercise of outstanding
   stock options

 

 

9,423,271

 

 

 

7,423,777

 

Shares reserved for vesting of restricted stock units

 

 

940,392

 

 

 

599,850

 

Shares reserved for issuance under the 2018 Stock
   Option and Incentive Plan

 

 

5,005,295

 

 

 

2,583,736

 

Shares reserved for issuance under the 2018 Employee
   Stock Purchase Plan

 

 

1,467,026

 

 

 

1,151,010

 

Shares reserved for issuance under the 2019
   Inducement Plan

 

 

786,656

 

 

 

412,686

 

Shares reserved for issuance under the 2020
   Inducement Plan

 

 

1,637,000

 

 

 

1,637,000

 

Total shares of authorized common stock reserved for
   future issuance

 

 

19,259,640

 

 

 

13,808,059