Designated Filer:	Warburg Pincus & Co.
Issuer & Ticker Symbol:	Talon Therapeutics, Inc. [TLON]
Date of Event Requiring Statement:	November 14, 2012

Joint Filers’ Signatures

WARBURG PINCUS PRIVATE EQUITY X, L.P.
By:  Warburg Pincus X, L.P., its General Partner,
	By:  Warburg Pincus X LLC, its General Partner,
		By:  Warburg Pincus Partners LLC, its Sole Member,
			By: Warburg Pincus & Co., its Managing Member
By: /s/ Scott A. Arenare				Date:   November 15, 2012
	Name:  Scott A. Arenare
	Title:  Partner
WARBURG PINCUS X PARTNERS, L.P.
By:  Warburg Pincus X, L.P., its General Partner,
	By:  Warburg Pincus X LLC, its General Partner,
		By:  Warburg Pincus Partners LLC, its Sole Member,
			By: Warburg Pincus & Co., its Managing Member
By: /s/ Scott A. Arenare				Date:   November 15, 2012
	Name:  Scott A. Arenare
	Title:  Partner
WARBURG PINCUS X, L.P.
By:  Warburg Pincus X LLC, its General Partner,
	By:  Warburg Pincus Partners LLC, its Sole Member,
		By:  Warburg Pincus & Co., its Managing Member
By: /s/ Scott A. Arenare				Date:   November 15, 2012
	Name:  Scott A. Arenare
	Title:  Partner
WARBURG PINCUS X LLC
By:  Warburg Pincus Partners LLC, its Sole Member,
	By:  Warburg Pincus & Co., its Managing Member
By: /s/ Scott A. Arenare				Date:   November 15, 2012
	Name:  Scott A. Arenare
	Title:  Partner
WARBURG PINCUS PARTNERS LLC
By:  Warburg Pincus & Co., its Managing Member
By: /s/ Scott A. Arenare				Date:   November 15, 2012
	Name:  Scott A. Arenare
	Title:  Partner

Designated Filer:	Warburg Pincus & Co.
Issuer & Ticker Symbol:	Talon Therapeutics, Inc. [TLON]
Date of Event Requiring Statement:	November 14, 2012

Joint Filers’ Signatures (cont’d)

WARBURG PINCUS LLC
By: /s/ Scott A. Arenare		Date:   November 15, 2012
	Name:  Scott A. Arenare
	Title:  Managing Director
WARBURG PINCUS & CO.
By: /s/ Scott A. Arenare		Date:   November 15, 2012
	Name:  Scott A. Arenare
	Title:  Partner
CHARLES R. KAYE
By: /s/ Scott A. Arenare		Date:   November 15, 2012
	Name:  Charles R. Kaye
	By: Scott A. Arenare, Attorney-in-Fact*
JOSEPH P. LANDY
By: /s/ Scott A. Arenare		Date:   November 15, 2012
	Name:  Joseph P. Landy
	By: Scott A. Arenare, Attorney-in-Fact*

* The Powers of Attorney given by Mr. Kaye and Mr. Landy were previously filed with the U.S. Securities & Exchange Commission on October 4, 2012 as exhibits to a statement on Schedule 13D/A filed by Warburg Pincus Private Equity X, L.P. with respect to Primerica, Inc. and are hereby incorporated by reference.