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MannKind and Pfizer Announce Collaboration for Certain Exubera Patients to Transition to MannKind's Inhaled Insulin Therapy
VALENCIA, Calif. & NEW YORK, Sep 16, 2008 (BUSINESS WIRE) -- MannKind Corporation (Nasdaq: MNKD) and Pfizer Inc (NYSE: PFE) announced today that MannKind will transition certain Exubera patients with a continuing need for inhaled insulin to MannKind's inhaled insulin product, Technosphere(R) Insulin. Technosphere Insulin is an investigational product that has recently completed Phase 3 clinical trials.

In October 2007, Pfizer announced that it would stop marketing Exubera (insulin human (rDNA origin)) Inhalation Powder because it did not meet customers' needs or Pfizer's financial expectations. Since that time, Exubera patients have been transitioning to other diabetes therapies, although there remains a small number of patients with a continuing medical need for inhaled insulin. Pfizer began discussions with MannKind to give these patients access to Technosphere Insulin. Pfizer will reimburse some of MannKind's costs relating to the transition of patients.

According to MannKind's Chief Scientific Officer, Dr. Peter Richardson, "For some Exubera patients, continued treatment with inhaled insulin is needed. These patients generally fall into two categories: those with severe needle-phobia or a very poor response to subcutaneous insulin. This small number of patients represents a group with particularly high medical need who will benefit from using an inhaled insulin such as Technosphere Insulin."

Hakan Edstrom, MannKind's President and Chief Operating Officer, commented, "We're pleased to work with Pfizer as we transition these patients and to help them manage their diabetes."

About MannKind Corporation

MannKind Corporation (Nasdaq: MNKD) focuses on the discovery, development and commercialization of therapeutic products for patients with diseases such as diabetes and cancer. Its pipeline includes Technosphere Insulin, which has completed Phase 3 clinical trials, and MKC253, which is currently in phase 1 clinical trials. Both of these investigational products are being evaluated for their safety and efficacy in the treatment of diabetes. For more information on MannKind Corporation and its technology, visit http://www.mannkindcorp.com.

About Pfizer

Founded in 1849, Pfizer is the world's largest research-based pharmaceutical company. Pfizer is taking new approaches to advancing better health as it discovers, develops, manufactures and delivers quality, safe and effective prescription medicines to treat and help prevent disease for both people and animals. For more information visit www.pfizer.com.

SOURCE: Pfizer Inc

Peter Richardson, 201-983-5064
Chief Scientific Officer
Vanessa Aristide, 212-733-3784

"Safe Harbor" Statement under the Private Securities Litigation Reform Act of 1995: Statements in this press release regarding MannKind's business which are not historical facts are "forward-looking statements" that involve risks and uncertainties. For a discussion of such risks and uncertainties, which could cause actual results to differ from those contained in the forward-looking statements, see "Risk Factors" in the Company's Annual Report or Form 10-K for the most recently ended fiscal year.