Exhibit 99.1
Joint Filing Agreement
The undersigned hereby agree that the Statement on Schedule 13G dated August 23, 2013 with respect to the shares of Common Stock of Regado Biosciences, Inc, and any amendments thereto executed by each and any of the undersigned shall be filed on behalf of each of the undersigned pursuant to and in accordance with the provisions of Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended.
Dated: August 23, 2013
| BIOTECHNOLOGY VALUE FUND, L.P. | BVF PARTNERS L.P. | |||
| By: | BVF Partners L.P., its general partner | By: | BVF Inc., its general partner | |
| By: | BVF Inc., its general partner | By: | /s/ Mark N. Lampert | |
| Mark N. Lampert | ||||
| By: | /s/ Mark N. Lampert | President | ||
| Mark N. Lampert | ||||
| President | ||||
| BVF INC. | ||||
| BIOTECHNOLOGY VALUE FUND II, L.P. | By: | /s/ Mark N. Lampert | ||
| Mark N. Lampert | ||||
| By: | BVF Partners L.P., its general partner | President | ||
| By: | BVF Inc., its general partner | |||
| /s/ Mark N. Lampert | ||||
| By: | /s/ Mark N. Lampert | MARK N. LAMPERT | ||
| Mark N. Lampert | ||||
| President | ||||