Aileron Therapeutics, Inc. appointed Jeffrey Bailey as chairman of its board of directors.

Bailey serves as CEO and director of privately held device maker IlluminOss Medical, Inc.

He is also a director at Madison Vaccines, Inc.

Bailey replaces Scott Kapnick as chairman of the Cambridge, Mass.-based biotechnology company. Kapnick will remain on the company's board.

In addition, Aileron said Brian Gallagher Jr. resigned from the company's board.