SAFETY—LUNG FUNCTION
Monitor lung function periodically with Afrezza®1
About the forced expiratory volume in 1 second (FEV1) test
- Must be conducted before starting patients on Afrezza, then again at 6 months, and annually thereafter1
- Establishes a baseline assessment of lung function1
- Identifies patients who experience a decline in lung function over time1
Conducting a FEV1 test
Step 1
Insert mouthpiece and switch device on

Step 2
Instruct patient to exhale 3 times

Step 3
Record best FEV1 result

The FEV1 test is one of the tools that can be used to help establish a baseline assessment, and monitor lung function after 6 months of therapy, and annually thereafter1

Complimentary FEV1 devices
- For healthcare professionals, MannKind will ship 1 complimentary FEV1 device and 10 tubes directly to your office
- For patients with diabetes, MannKind will ship 1 complimentary device and instructions directly to their residence for convenient at-home testing
CHANGE IN FEV1 WITH AFREZZA VS ANTI-DIABETES TREATMENTS IN T1D AND T2D1

Data for mean change in FEV1 from baseline (BL) among Afrezza-treated patients (n=1,532) versus comparator-treated patients (n=1,542) from clinical trials excluding patients with chronic lung disease and lasting up to 2 years. The observed changes in FEV1 were similar in patients with T1D and T2D.1
- In healthy individuals, total lung capacity is about 4,000-6,000 mL2
- The 40-mL average difference between Afrezza- and comparator-treated patients represents about a 1% decline of total lung capacity1,2
- In clinical trials lasting up to 2 years, differences manifested in the first few months of exposure and were non-progressive3,4
- FEV1 decreases at a rate of 25-40 mL/year with normal aging after age 30,5 whereas people with diabetes experience an additional decline in FEV1 of approximately 25 mL/year6
- A decline in FEV1 of ≥15% occurred in 6% of Afrezza-treated subjects compared to 3% of comparator-treated subjects1
- Absorption of Afrezza was not impacted by upper respiratory infection7
References: 1. Afrezza (insulin human) Inhalation Powder Prescribing Information. MannKind Corporation. 2. Stocks J, Quanjer PH. Reference values for residual volume, functional residual capacity and total lung capacity. ATS Workshop on Lung Volume Measurements. Official Statement of the European Respiratory Society. Eur Respir J. 1995;8(3):492-506. 3. Data on file. MannKind Corporation. 4. Raskin P, Heller S, Honka M, Chang P-C, Boss AH, Richardson PC, et al. Pulmonary function over 2 years in diabetic patients treated with prandial inhaled Technosphere Insulin or usual antidiabetes treatment: a randomized trial. Diabet Obes Metab. 2012;14(2):163-173. 5. Thomas ET, Guppy M, Straus SE, Bell KJL, Glasziou P, Rate of normal lung function decline in ageing adults: a systematic review of prospective cohort studies. BMJ Open. 2019;9(6):e028150. 6. Lange P, Groth S, Mortensen J, et al. Diabetes mellitus and ventilatory capacity: a five year follow-up study. Eur Respir J. 1990;3(3):288-292. 7. Levin PA, Heinemann L, Boss A, Rosenblit PD. Impact of symptomatic upper respiratory tract infections on insulin absorption and action of Technosphere inhaled insulin. BMJ Open Diabetes Res Care. 2016;4(1):e000228.
US-AFR-1671