EXHIBIT 99.1
JOING FILING AGREEMENT
In accordance with Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended, the undersigned hereby agree that this Statement on Schedule 13G relating to the Common Stock of Idera Pharmaceuticals, Inc. is being filed with the Securities and Exchange Commission on behalf of each of them.
September 6, 2019
| BAKER BROS. ADVISORS LP | ||
| By: | Baker Bros. Advisors (GP) LLC, its general partner | |
| By: | /s/ Scott L. Lessing | |
| Name: Scott L. Lessing | ||
| Title: President | ||
| BAKER BROS. ADVISORS (GP) LLC | ||
| By: | /s/ Scott L. Lessing | |
| Name: Scott L. Lessing | ||
| Title: President | ||
| /s/ Julian C. Baker | ||
| Julian C. Baker | ||
| /s/ Felix J. Baker | ||
| Felix J. Baker | ||
| FBB3 LLC | ||
| /s/ Julian C. Baker | ||
| Julian C. Baker | ||
