Exhibit 99.1

JOINT FILING AGREEMENT

In accordance with Rule 13d-1(k) promulgated under the Securities Exchange Act of 1934, as amended, the undersigned hereby agree to the joint filing with all other Reporting Persons (as such term is defined in the Schedule 13D referred to below) on behalf of each of them of a statement on Schedule 13D (including amendments thereto) with respect to the shares of common stock, par value $0.0001, of IN8bio, Inc. a Delaware corporation (the “Issuer”), unless and until a Reporting Person shall give written notice to the other Reporting Persons that it wishes to make separate Schedule 13D filings.

The undersigned further agree that each party hereto is responsible for timely filing of such Statement on Schedule 13D and any further amendments thereto, and for the completeness and accuracy of the information concerning such party contained therein, provided that no party is responsible for the completeness and accuracy of the information concerning the other party, unless such party knows or has reason to believe that such information is inaccurate. The undersigned further agree that this Agreement shall be included as an Exhibit to such joint filing.

This Agreement may be executed in any number of counterparts, all of which taken together shall constitute one and the same instrument.

IN WITNESS WHEREOF, the parties hereto have caused this Joint Filing Agreement to be duly executed effective as of December 15, 2023.

Dated:  December 15, 2023

BIOS FUND II, LP
By:	Bios Equity Partners II, LP,
	its general partner
	By:	Cavu Management, LP,
		its general partner

By:	Cavu Advisors, LLC,
	its general partner

By:	/s/ Leslie Wayne Kreis, Jr.
	Leslie Wayne Kreis, Jr.
	Manager

By:	Bios Capital Management, LP,
	its general partner

By:	Bios Advisors GP, LLC,
	its general partner

By:	/s/ Aaron Glenn Louis Fletcher
	Aaron Glenn Louis Fletcher
	Manager

BIOS FUND II QP, LP
By:	Bios Equity Partners II, LP,
	its general partner
	By:	Cavu Management, LP,
		its general partner

By:	Cavu Advisors, LLC,
	its general partner

By:	/s/ Leslie Wayne Kreis, Jr.
	Leslie Wayne Kreis, Jr.,
	Manager

By:	Bios Capital Management, LP,
	its general partner

By:	Bios Advisors GP, LLC,
	its general partner

By:	/s/ Aaron Glenn Louis Fletcher
	Aaron Glenn Louis Fletcher,
	Manager

BIOS FUND II NT, LP
By:	Bios Equity Partners II, LP,
	its general partner
	By:	Cavu Management, LP,
		its general partner

By:	Cavu Advisors, LLC,
	its general partner

By:	/s/ Leslie Wayne Kreis, Jr.
	Leslie Wayne Kreis, Jr.,
	Manager

By:	Bios Capital Management, LP,
	its general partner

By:	Bios Advisors GP, LLC,
	its general partner

By:	/s/ Aaron Glenn Louis Fletcher
	Aaron Glenn Louis Fletcher,
	Manager

BIOS INCYSUS CO-INVEST I, LP
By:	Bios Equity Partners II, LP,
	its general partner
	By:	Cavu Management, LP,
		its general partner

By:	Cavu Advisors, LLC,
	its general partner

By:	/s/ Leslie Wayne Kreis, Jr.
	Leslie Wayne Kreis, Jr.
	Manager

By:	Bios Capital Management, LP,
	its general partner

By:	Bios Advisors GP, LLC,
	its general partner

By:	/s/ Aaron Glenn Louis Fletcher
	Aaron Glenn Louis Fletcher
	Manager

BIOS FUND III, LP
By:	Bios Equity Partners III, LP,
	its general partner
	By:	Cavu Management, LP,
		its general partner

By:	Cavu Advisors, LLC,
	its general partner

By:	/s/ Leslie Wayne Kreis, Jr.
	Leslie Wayne Kreis, Jr.,
	Manager

By:	Bios Capital Management, LP,
	its general partner

By:	Bios Advisors GP, LLC,
	its general partner

By:	/s/ Aaron Glenn Louis Fletcher
	Aaron Glenn Louis Fletcher,
	Manager

BIOS FUND III QP, LP
By:	Bios Equity Partners III, LP,
	its general partner
	By:	Cavu Management, LP,
		its general partner

By:	Cavu Advisors, LLC,
	its general partner

By:	/s/ Leslie Wayne Kreis, Jr.
	Leslie Wayne Kreis, Jr.,
	Manager

By:	Bios Capital Management, LP,
	its general partner

By:	Bios Advisors GP, LLC,
	its general partner

By:	/s/ Aaron Glenn Louis Fletcher
	Aaron Glenn Louis Fletcher,
	Manager

BIOS FUND III NT, LP
By:	Bios Equity Partners III, LP,
	its general partner
	By:	Cavu Management, LP,
		its general partner

By:	Cavu Advisors, LLC,
	its general partner

By:	/s/ Leslie Wayne Kreis, Jr.
	Leslie Wayne Kreis, Jr.,
	Manager

By:	Bios Capital Management, LP,
	its general partner

By:	Bios Advisors GP, LLC,
	its general partner

By:	/s/ Aaron Glenn Louis Fletcher
	Aaron Glenn Louis Fletcher,
	Manager

BIOS CLINICAL OPPORTUNITY FUND, LP
By:	Bios Equity COF, LP,
	its general partner
	By:	Bios Capital Management, LP,
		its general partner

By:	Bios Advisors GP, LLC,
	its general partner

By:	/s/ Aaron Glenn Louis Fletcher
	Aaron Glenn Louis Fletcher,
	Manager

BP Directors, LP
By:	Bios Equity Partners, LP,
	its general partner
	By:	Cavu Management, LP,
		its general partner

By:	Cavu Advisors, LLC,
	its general partner

By:	/s/ Leslie Wayne Kreis, Jr.
	Leslie Wayne Kreis, Jr.,
	Manager

By:	Bios Capital Management, LP,
	its general partner

By:	Bios Advisors GP, LLC,
	its general partner

By:	/s/ Aaron Glenn Louis Fletcher
	Aaron Glenn Louis Fletcher,
	Manager

BIOS EQUITY PARTNERS, LP
By:	Cavu Management, LP,
	its general partner
	By:	Cavu Advisors, LLC,
		its general partner

By:	/s/ Leslie Wayne Kreis, Jr.
	Leslie Wayne Kreis, Jr.,
	Manager

By:	Bios Capital Management, LP,
	its general partner
	By:	Bios Advisors GP, LLC,
		its general partner

By:	/s/ Aaron Glenn Louis Fletcher
	Aaron Glenn Louis Fletcher,
	Manager

BIOS EQUITY PARTNERS II, LP
By:	Cavu Management, LP,
	its general partner
	By:	Cavu Advisors, LLC,
		its general partner

By:	/s/ Leslie Wayne Kreis, Jr.
	Leslie Wayne Kreis, Jr.,
	Manager

By:	Bios Capital Management, LP,
	its general partner
	By:	Bios Advisors GP, LLC,
		its general partner

By:	/s/ Aaron Glenn Louis Fletcher
	Aaron Glenn Louis Fletcher,
	Manager

BIOS EQUITY PARTNERS III, LP
By:	Cavu Management, LP,
	its general partner
	By:	Cavu Advisors, LLC,
		its general partner

By:	/s/ Leslie Wayne Kreis, Jr.
	Leslie Wayne Kreis, Jr.,
	Manager

By:	Bios Capital Management, LP,
	its general partner
	By:	Bios Advisors GP, LLC,
		its general partner

By:	/s/ Aaron Glenn Louis Fletcher
	Aaron Glenn Louis Fletcher,
	Manager

BIOS EQUITY COF, LP
By:	Bios Capital Management, LP,
	its general partner
	By:	Bios Advisors GP, LLC,
		its general partner

By:	/s/ Aaron Glenn Louis Fletcher
	Aaron Glenn Louis Fletcher,
	Manager

CAVU MANAGEMENT, LP
By:	Cavu Advisors, LLC,
	its general partner

By:	/s/ Leslie Wayne Kreis, Jr.
	Leslie Wayne Kreis, Jr.,
	Manager

BIOS CAPITAL MANAGEMENT, LP
By:	Bios Advisors GP, LLC
	its general partner

By:	/s/ Aaron Glenn Louis Fletcher
	Aaron Glenn Louis Fletcher
	Manager

CAVU ADVISORS, LLC
By:	/s/ Leslie Wayne Kreis, Jr.
	Leslie Wayne Kreis, Jr.,
	Manager

BIOS ADVISORS GP, LLC
By:	/s/ Aaron Glenn Louis Fletcher
	Aaron Glenn Louis Fletcher,
	Manager

/s/ Leslie Wayne Kreis, Jr.

LESLIE WAYNE KREIS, JR., in his individual capacity

/s/ Aaron Glenn Louis Fletcher

AARON GLENN LOUIS FLETCHER, in his individual capacity