Exhibit 1
JOINT FILING AGREEMENT
The persons below hereby agree that the Schedule 13D to which this agreement is attached as an exhibit, as well as all future amendments to such Schedule 13D, shall be filed jointly on behalf of each of them. This agreement is intended to satisfy the requirements of Rule13d-1(k)(1)(iii) under the Securities Exchange Act of 1934.
Dated: December 21, 2018
| PIVOTAL BIOVENTURE PARTNERS FUND I, L.P. | ||||
| By: | PIVOTAL BIOVENTURE PARTNERS FUND I G.P., L.P. Its General Partner, | |||
By: PIVOTAL BIOVENTURE PARTNERS FUND I U.G.P., LTD. Its Generaly Partner, | ||||
| By: | /s/ Robert Hopfner | |||
| Name: | Robert Hopfner | |||
| Title: | Authorized Signatory | |||
| PIVOTAL BIOVENTURE PARNTERS FUND I G.P., L.P. | ||||
| By: | PIVOTAL BIOVENTURE PARTNERS FUND I U.G.P., LTD Its General Partner, | |||
| By: | /s/ Robert Hopfner | |||
| Name: | Robert Hopfner | |||
| Title: | Authorized Signatory | |||
| PIVOTAL BIOVENTURE PARTNERS FUND I U.G.P. LTD | ||||
| By: | /s/ Robert Hopfner | |||
| Name: | Robert Hopfner | |||
| Title: | Authorized Signatory | |||
