EX-99 2 e618383_ex-99.htm

EXHIBIT A

Agreement of Joint Filing

The undersigned hereby agree that a single Form 3 (or any amendment thereto) relating to the common stock of the Issuer shall be filed on behalf of each of the undersigned and that this Agreement shall be filed as an exhibit to such Form 3.

Date: April 22, 2019

	Global Life Bioventure V, S.à r.l.
	By:		/s/ Richard Lim
	Name:		Richard Lim
	Title:		Class A Manager
	By:		/s/ Matthijs Bogers
	Name:		Matthijs Bogers
	Title:		Class B Manager
	Omega Fund V, L.P.
	By:		Omega Fund V GP, L.P.
	Its:		General Partner
	By:		Omega Fund V GP Manager, Ltd.
	Its:		General Partner
	By:		/s/ Richard Lim
	Name:		Richard Lim
	Title:		Director
	Omega Fund V GP, L.P.
	By:		Omega Fund V GP Manager, Ltd.
	Its:		General Partner
	By:		/s/ Richard Lim
	Name:		Richard Lim
	Title:		Director
	Omega Fund V GP Manager, Ltd.
	By:		/s/ Richard Lim
	Name:		Richard Lim
	Title:		Director

	Richard Lim
	By:		/s/ Richard Lim
	Name:		Richard Lim
	Otello Stampacchia
	By:		/s/ Otello Stampacchia
	Name:		Otello Stampacchia
	Claudio Nessi
	By:		/s/ Claudio Nessi
	Name:		Claudio Nessi
	Anne-Mari Paster
	By:		/s/ Anne-Mari Paster
	Name:		Anne-Mari Paster