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 Refocuses Pipeline Resources in Response to COVID-19 Pandemic

03/17/20
PDF Version

WESTLAKE VILLAGE, Calif., March 17, 2020 (GLOBE NEWSWIRE) -- MannKind Corporation (NASDAQ: MNKD), a company focused on the development and commercialization of inhaled therapeutic products, today announced that it is adjusting research and development resources that were reserved for its pipeline of investigational products for treating serious lung diseases, with the goal of prioritizing work on new compounds that may have the potential to address the morbidity and mortality associated with respiratory viral infections, such as COVID-19.  

Specifically, MannKind has initiated a collaboration with Immix Biopharma, Inc. to prepare a dry powder formulation of a compound with the potential to treat acute respiratory distress syndrome, a complication of COVID-19.  The immediate focus of this effort is to rapidly develop prototype powders, which will then be assessed for their potential to be used therapeutically.  Other collaborations are being actively explored at this time.

MannKind is committed to joining the global effort to overcome the COVID-19 crisis.  MannKind’s formulation and drug development expertise as well as its excess manufacturing capacity will be deployed as necessary to help protect humankind from this global health crisis. 

Formulations for Pulmonary Delivery
MannKind’s Technosphere® technology is an innovative, dry-powder formulation technology that allows medication to be delivered to the lungs.  MannKind has successfully prepared Technosphere formulations of anionic and cationic drugs, hydrophobic and hydrophilic drugs, proteins, peptides and small molecules. Technosphere powders are based on a proprietary excipient, fumaryl diketopiperazine (FDKP), which is a pH-sensitive organic molecule that self-assembles into small particles under acidic conditions. Active pharmaceutical ingredients can be loaded onto these particles, which are then dried to powder form. The resulting powder has a consistent and narrow range of particle sizes with good aerodynamic properties that enable efficient delivery deep into the lungs. Technosphere powders dissolve quickly when the particles contact the moist lung surface with its neutral pH, releasing the drug molecules to diffuse across a thin layer of cells into the arterial circulation, bypassing the liver to provide excellent systemic exposure. 

Drug Delivery Devices
MannKind has also created an innovative line of breath-powered, dry powder inhalers. Its inhalers are easy to use, cost-effective and can be produced in both a reusable (chronic treatment) and a single-use (acute treatment) format. Both the reusable and single-use inhaler formats use the same internal air-flow design. Being breath-powered, our inhalers require only the patient’s inhalation effort to deliver the powder. The inhalers are engineered to produce an aggressive airstream that de-agglomerates the powder while keeping the powder moving relatively slowly. This slow-moving powder effectively navigates the patient’s airways to reach the deep lung with minimal deposition at the back of the throat. MannKind’s inhalers show very little change in performance (i.e., efficient cartridge emptying) over a wide range of inhalation efforts.

Manufacturing Capability
MannKind’s 328,000 square foot R&D and manufacturing facility is located in Danbury, Connecticut and has a full range of development and manufacturing capabilities, including analytical, chemical, formulation, filling and packaging.  The facility houses two 61 square meter lyophilizers and has sufficient filling capacity to produce more than 300 million cartridges of inhaled drug annually.  The quality management systems of the facility have been certified to be in conformance with the ISO 13485 and MD-SAP standards and was inspected most recently by the U.S. Food and Drug Administration in June 2018, at which time there were no inspectional observations. 

About Immix Biopharma
Immix Biopharma, Inc. is a privately-held, biopharmaceutical firm focused on developing safe and effective therapies for cancer patients. The company was founded by Vladimir Torchilin, Ph.D., D.Sc., Director of the Center for Pharmaceutical Biotechnology and Nanomedicine at Northeastern University; physician-scientist and clinical researcher Ilya Rachman, MD, PhD, MBA; and Sean D. Senn, JD, MSc., MBA, a senior biotechnology patent attorney. Immix is focused on harnessing scientific advances in order to engineer transformative and effective cancer treatments. For more information visit www.immixbio.com.

About MannKind
MannKind Corporation (NASDAQ:MNKD) focuses on the development and commercialization of inhaled therapeutic products for patients with diseases such as diabetes and pulmonary arterial hypertension. MannKind is currently commercializing Afrezza® (insulin human) Inhalation Powder, the Company's first FDA-approved product and the only inhaled ultra rapid-acting mealtime insulin in the United States, where it is available by prescription from pharmacies nationwide. MannKind is headquartered in Westlake Village, California, and has a state-of-the art manufacturing facility in Danbury, Connecticut. The Company also employs field sales and medical representatives across the U.S. For further information, visit www.mannkindcorp.com.

Forward-Looking Statements
This press release contains forward-looking statements that involve risks and uncertainties. Words such as "believes," "anticipates," "plans," "expects," "intends," "will," "goal," "potential" and similar expressions are intended to identify forward-looking statements. These forward-looking statements are based upon MannKind'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 various risks and uncertainties detailed in MannKind's filings with the SEC. For a discussion of these and other factors, please refer to MannKind’s annual report on Form 10-K for the year ended December 31, 2019 as well as MannKind’s other filings with the SEC. 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 press release.

MannKind Contacts:
Investor Relations
818-661-5000
ir@mannkindcorp.com

Collaborations
(818) 661-5001
BD@mannkindcorp.com

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Source: MannKind