Exhibit 99.1

JOINT FILING AGREEMENT

The undersigned hereby agree that this Initial Statement on Schedule 13G with respect to the shares of Common Stock of Iovance Biotherapeutics, Inc., dated as of December 30, 2022, is, and any amendments thereto (including amendments on Schedule 13D) signed by each 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) under the Securities Exchange Act of 1934.

Date: December 30, 2022

MHR Capital Partners Master Account LP
By:	/s/ Janet Yeung
	Name:Janet Yeung
	Title:Authorized Signatory

MHR ADVISORS LLC
By:	/s/ Janet Yeung
	Name:Janet Yeung
	Title:Authorized Signatory

MHRC LLC
By:	/s/ Janet Yeung
	Name:Janet Yeung
	Title:Authorized Signatory

MHR FUND MANAGEMENT LLC
By:	/s/ Janet Yeung
	Name:Janet Yeung
	Title:Authorized Signatory

MHR HOLDINGS LLC
By:	/s/ Janet Yeung
	Name:Janet Yeung
	Title:Authorized Signatory

MARK H. RACHESKY, M.D.
By:	/s/ Janet Yeung, Attorney in Fact