MNKD Investors

Technosphere®

One of the largest organs in your body are the lungs. Picture the size of a full tennis court and that is roughly the surface area of both lungs in a typical adult.

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NTM Lung Disease on the Rise

“I cough every morning upon waking, so I don’t feel rested.” “Imagine not being able to breathe.” “Anxiety ruins everything about you – it’s not a normal life.” “You just exist from day to day and week to week.”

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What exactly is the Technosphere® Platform?

One of the largest organs in your body are the lungs. Picture the size of a full tennis court and that is roughly the surface area of both lungs in a typical adult. Running through those lungs are airways whose total length measures 1,500 miles – that’s the distance between Chicago and Las Vegas, New York to Albuquerque, and Los Angeles to Nashville.

Simply put, the lungs create a wonderful platform for effective drug delivery. MannKind’s Technosphere technology recognizes this and provides the distinct advantage of rapid, deep lung drug delivery. The effect is similar to intravenous delivery (I.V.; within a vein) and has the added benefit of bypassing the liver which can be especially helpful in reducing systemic side effects.

Examining it closer, it helps to look at inhalation, air flow travel, and the exhale. When you breathe in, air is drawn into the lung and flows down curving, narrowing airways that end in the air sacs or alveoli. When air is exhaled, the flow is reversed. Between the end of an inhalation and the start of exhalation, the air in the lung is stationary. To reach the deep lung, inhaled particles must be carried by the air stream and have enough momentum to continue through the stationary air to collide with the lung surface.

Particles that can reach the lung have aerodynamic diameters between 0.5 µm and 5-6 µm (1 µm is 1 micro-meter or about 0.00004 inches). Particles that are larger than 6 µm will leave the air stream and hit the back of your mouth and throat; smaller than 0.5 µm wouldn’t have the ability to reach the lungs and would simply get exhaled.

“The average Technosphere particle is about 2-2.5 µm which is in the middle of the respirable range,” explains Marshall Grant, PhD, MSc, Executive Director, Clinical Pharmacology & Research for MannKind Corporation. “The particle size distribution is a major reason Technosphere powders are highly efficient in delivering drug to the lungs than other dry powder inhalers (DPIs).”

The Technosphere particles in FDA-approved Afrezza® (insulin human) Inhalation Powder and Tyvaso DPI™ (treprostinil) Inhalation Powder are manufactured by different processes and possess different characteristics. But both are made up of small crystals of FDKP (fumaryl diketopiperazine), MannKind’s proprietary molecule. FDKP provides high solubility and fast dissolution at physiologic pH – and more importantly – can crystallize and form particles in the range appropriate for optimum delivery to the lungs.

When Technosphere powder reaches the lung surface, the FDKP and drug dissolve. The FDKP is then rapidly cleared from the lung into systemic circulation. The FDKP is not metabolized, but rather excreted primarily in the urine. Another value of Technosphere powders has been their versatility – they are compatible with a wide range of doses with different types of drugs.

MannKind’s Technosphere powders are delivered into the lung’s airstream via an inhalation device or DPI (dry powder inhaler). The breath-powered inhalers (Dreamboat® being the most common version) provide excellent delivery efficiency and are proven to deliver up to 70% of the dry-powder dose deep into the lungs. Our DPI are designed to be simple, easy to use and discreet. For patients, imagine having a drug in the convenient form of an inhaler that fits in the palm of your hand. This approach allows patients to not only take control of their health but do it while going about their day and enjoying life more humann.

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NTM Lung Disease on the Rise

“I cough every morning upon waking, so I don’t feel rested.” “Imagine not being able to breathe.” “Anxiety ruins everything about you – it’s not a normal life.” “You just exist from day to day and week to week.” These are a sampling of comments about the most bothersome symptoms from living with Nontuberculous Mycobacteria (NTM) shared in a study from NTM Info & Research, Inc. The statements are unfortunately typical and those with NTM often have unpredictable day-to-day health functioning and reduced quality of life.

NTM lung disease is a serious infection that is caused by bacteria that are common in the environment and can cause lung damage. The reality is that we are all exposed to these bacteria in our day-to-day lives – more than 120 species of mycobacteria have been identified. These common bacteria exist in water and soil particles that are in the air, wet places like hot tubs, steamy bathrooms, dishwashers, and even the dewy ground we walk on at the park. But not everyone is at risk of getting NTM lung disease just because they are exposed.

Those predisposed often have underlying conditions such as asthma, COPD, and bronchiectasis, which makes them prone to NTM infection. NTM is not considered to be contagious. Women over the age of 65 make up the majority of those impacted, with a predominance in those of Caucasian and Asian descent.

A rare disease, NTM can often be difficult to diagnose. Many will experience coughing, fatigue, weight loss and shortness of breath – all of which are common with other lung disease symptoms and other conditions like tuberculosis. With NTM, symptoms often worsen, and that is a marker not to be ignored.

It is estimated that some 86,000 individuals are living with NTM lung diseases, and it is on the rise growing 8% each year. Coastal regions including Gulf States have higher rates of infection accounting for 70% of annual NTM cases.

While no cure is available, treatments to manage NTM are available. Treatment for NTM involves antibiotic and multidrug regimens with duration lasting from months to years with tolerability and adverse reactions to treatment which often leads to a lack of adherence to therapy.

There is a valuable need to develop medicines that are well tolerated and effective that lends to consistent patient use and alleviates symptoms of NTM lung disease. MannKind continues to progress MNKD-101 (Clofazimine) for the treatment of NTM.

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Release Details

MannKind Corporation Reports First Quarter Financial Results

05/06/05
MannKind Corporation Reports First Quarter Financial Results

Conference Call to Begin Today at 9:00 a.m. EDT

VALENCIA, Calif., May 6 /PRNewswire-FirstCall/ -- MannKind Corporation (Nasdaq: MNKD) today reported financial results for the three months ended March 31, 2005.

For the first quarter of 2005, total operating expenses were $22.6 million, compared with $16.6 million for the first quarter of 2004. Research and development (R&D) expenses increased by $5.9 million to $18.7 million, primarily due to increased costs associated with the Company's expanded clinical trials and related support for its Technosphere® Insulin program. General and administrative (G&A) expenses increased by $0.2 million to $4.0 million.

The net loss applicable to common stockholders for the first quarter of 2005 was $22.2 million, or $0.68 per share based on 32.8 million shares outstanding, compared with a net loss applicable to common stockholders of $17.1 million, or $0.86 per share based on 20.0 million shares outstanding, for the first quarter of 2004. The first quarter 2004 share count reflects the completion of an offering of Series C convertible preferred stock in that quarter and the first quarter of 2005 share count reflects the initial public offering of common stock during the third quarter of 2004.

Cash, cash equivalents and marketable securities were $67.0 million at March 31, 2005 and $90.5 million at December 31, 2004.

Hakan Edstrom, President and Chief Operating Officer of MannKind Corporation, stated, "The increased spending levels this past quarter reflect our significantly higher activity levels within the clinical and regulatory areas. In Europe, we expect to complete our final Phase 2b trial in the third quarter and are enrolling patients in our Phase 3 trial program. In the United States, the FDA conducted a Special Protocol Assessment of a proposed Phase 3 study to assess the long-term safety of the Technosphere® Insulin System in type 1 and type 2 diabetes. This review is now complete, clearing the way for us to initiate this pivotal trial by mid-year, as planned."

MannKind Corporation also announced that Dr. Wendell Cheatham, a Corporate Vice President, is no longer employed by the Company. Mr. Edstrom has assumed Dr. Cheatham's management responsibilities while the Company completes its search for a senior executive to lead its development operations.

Alfred Mann, Chairman and Chief Executive Officer of MannKind Corporation, added, "As we move forward, we need exceptional discipline and focus on our Phase 3 clinical program. We recently performed an in-depth organizational review of our clinical and regulatory functions, and have reorganized and structured these groups to better ensure the successful and timely completion of our pivotal trials, both in the United States and in Europe. We have assembled an experienced clinical and regulatory team, led by vice presidents of medical affairs, clinical operations and worldwide regulatory affairs. We are continuing to expand our clinical staff through the recruitment of experienced personnel to manage our contract research organizations, data management and clinical operations. We continue to strengthen our organization and are seeking several additional key executives to enable us to realize the potential of our Technosphere® Insulin System."

Conference Call

MannKind management will host a conference call to discuss these results today at 9:00 a.m. Eastern Daylight Time. To participate in the call please dial (888) 463-4383 from the U.S. or Canada, or (706) 679-5355 from outside the U.S. or Canada, or listen to the call on the Internet at www.mannkindcorp.com. A telephone replay will be available for 48 hours following completion of the call by dialing (800) 642-1687 (toll-free) or (706) 645-9291, and entering reservation number 5915237. The web site replay will be available for 14 days.

About MannKind Corporation

MannKind focuses on the discovery, development and commercialization of therapeutic products for diseases such as diabetes and cancer. The Company is currently in Phase 3 clinical trials of its lead product, the Technosphere® Insulin System, in Europe to study its potential for the treatment of diabetes. This System consists of a proprietary dry powder Technosphere® formulation of insulin that is inhaled into the deep lung using the Company's MedTone™ inhaler. MannKind believes that the performance characteristics, unique kinetics, convenience and ease of use of the Technosphere® Insulin System may have the potential to change the way diabetes is treated. For more information on MannKind Corporation and its technology, visit www.mannkindcorp.com.

Forward-Looking Statements

This press release contains forward-looking statements, including statements related to MannKind's clinical trials and product candidates, that involve risks and uncertainties. Words such as "believes", "anticipates", "plans", "expects", "intend", "will", "goal", "potential" and similar expressions are intended to identify forward-looking statements. These forward-looking statements are based upon the Company's current expectations. Actual results and the timing of events could differ materially from those anticipated in such forward-looking statements as a result of these risks and uncertainties, which include, without limitation, risks related to the progress, timing and results of clinical trials, intellectual property matters, difficulties or delays in seeking or obtaining regulatory approval, manufacturing the Company's lead product candidate, competition from other pharmaceutical or biotechnology companies, the Company's ability to enter into any collaborations or strategic partnerships or obtain additional financing to support the Company's operations, the Company's ability to meet milestones and other risks detailed in MannKind's filings with the SEC, including the Annual Report on Form 10-K for the year ended December 31, 2004. You are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date of this press release. All forward-looking statements are qualified in their entirety by this cautionary statement, and MannKind undertakes no obligation to revise or update any forward-looking statements to reflect events or circumstances after the date of this news release.



                               MannKind Corporation
                      Consolidated Statements of Operations
                                   (Unaudited)

    (In thousands, except per
     share data)                                      Three Months Ended
                                                    March 31,     March 31,
                                                      2005          2004

    Revenue                                              $--            $--

    OPERATING EXPENSES:
    Research and development                          18,696         12,799
    General and administrative                         3,951          3,769
    Total operating expenses                          22,647         16,568
    Loss from operations                             (22,647)       (16,568)
    Other income                                          14             54
    Interest income                                      472            105
    Loss before provision for income taxes           (22,161)       (16,409)
    Income taxes                                          (1)           --
    Net loss                                         (22,162)       (16,409)
    Deemed dividend related to beneficial
     conversion feature of convertible
     preferred stock                                      --           (612)
    Accretion on redeemable preferred stock               --            (64)
    Net loss applicable to common stockholders      $(22,162)      $(17,085)
    Net loss per share:
    Basic and diluted                                 $(0.68)        $(0.86)
    Shares used to compute basic and
     diluted net loss per share:
    Basic and diluted                                 32,764         19,975



                               MannKind Corporation
                      Consolidated Balance Sheet Highlights
                                  (in thousands)

                                                    March 31,   December 31,
    Assets                                            2005          2004
                                                   (unaudited)
    Current Assets
      Cash and Cash Equivalents                      $22,089        $78,987
      Marketable Securities                           44,958         11,546
      Restricted Cash                                    585            583
      State Research and Development Tax Credit
       Exchange Receivable - Current                   1,500          1,500
      Prepaid Expenses and Other Current Assets        3,027          3,265

    Total Current Assets                              72,159         95,881

    Property and Equipment - at cost, net             67,999         66,511

    State Research and Development Tax Credit
     Exchange Receivable - Net of Current Portion      1,396          1,030
    Other Assets                                         203             61

    Total Assets                                    $141,757       $163,483

    Liabilities and Stockholders' Equity

    Current Liabilities                              $14,086        $13,044

    Other Liabilities                                     48             76

    Stockholders' Equity                             127,623        150,363

    Total Liabilities and Stockholders' Equity      $141,757       $163,483

SOURCE  MannKind Corporation
    -0-                             05/06/2005
    /CONTACT:  Dick Anderson, Chief Financial Officer of MannKind Corporation,
+1-661-775-5302, danderson@mannkindcorp.com/
    /Web site:  http://www.mannkindcorp.com /
    (MNKD)

CO:  MannKind Corporation
ST:  California
IN:  HEA MTC BIO
SU:  ERN CCA PER

AC-AI
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5826 05/06/2005 08:29 EDT http://www.prnewswire.com