EXHIBIT 1

Joint Filing Agreement

The undersigned hereby agree that they are filing this statement jointly pursuant to Rule 13d-1(k)(1). Each of them is responsible for the timely filing of such Schedule 13G, and for the completeness and accuracy of the information concerning such person contained therein; but none of them is responsible for the completeness or accuracy of the information concerning the other persons making the filing, unless such person knows or has reason to believe that such information is inaccurate.

In accordance with Rule 13d-1(k)(1) promulgated under the Securities and Exchange Act of 1934, as amended, the undersigned hereby agree to the joint filing with each other on behalf of each of them of such Schedule 13G with respect to the Common Stock of the Issuer, beneficially owned by each of them. This Joint Filing Agreement shall be included as an exhibit to such Schedule 13G.

[Signature Page Follows]

IN WITNESS WHEREOF, the undersigned hereby execute this Agreement as of February 6, 2022.

LINCOLN PARK CAPITAL FUND, LLC			LINCOLN PARK CAPITAL, LLC

BY:	LINCOLN PARK CAPITAL, LLC		BY:	ROCKLEDGE CAPITAL CORPORATION

BY:	ROCKLEDGE CAPITAL CORPORATION


By:	/s/ Joshua B. Scheinfeld		By:	/s/ Joshua B. Scheinfeld
	Name:	Joshua B. Scheinfeld		Name:	Joshua B. Scheinfeld
	Title:	President		Title:	President

LINCOLN PARK CAPITAL FUND, LLC			LINCOLN PARK CAPITAL, LLC

BY:	LINCOLN PARK CAPITAL, LLC		BY:	ALEX NOAH INVESTORS, INC.

BY:	ALEX NOAH INVESTORS, INC.


By:	/s/ Jonathan I. Cope		By:	/s/ Jonathan I. Cope
	Name:	Jonathan I. Cope		Name:	Jonathan I. Cope
	Title:	President		Title:	President

ROCKLEDGE CAPITAL CORPORATION			ALEX NOAH INVESTORS, INC.


By:	/s/ Joshua B. Scheinfeld		By:	/s/ Jonathan I. Cope
	Name:	Joshua B. Scheinfeld		Name:	Jonathan I. Cope
	Title:	President		Title:	President

JOSHUA B. SCHEINFELD			JONATHAN I. COPE


By:	/s/ Joshua B. Scheinfeld		By:	/s/ Jonathan I. Cope
	Name:	Joshua B. Scheinfeld		Name:	Jonathan I. Cope
	Title:	President		Title:	President