Patient Transitioning From Exubera® Inhalation Powder to Technosphere® Insulin Inhalation Powder

Inclusion Criteria: * Subject has type 1 or type 2 diabetes mellitus and is currently being treated with or has been treated with Exubera. * Subject has a severe phobia to sc injections of insulin (needle phobia) preventing conventional treatment OR has impaired sc insulin absorption Exclusion Criteria: * Smoking in the previous 6 months * History of asthma or chronic obstructive pulmonary disease (COPD) or any other significant pulmonary disease, or exposure to pulmonary toxins. * Clinically significant pulmonary abnormalities on chest high-resolution computed tomography (HRCT). * PFT results prior to transferring to TI Inhalation Powder showing any of the following: FEV1 \< 70% of predicted, FVC \< 70% of predicted, DLCO \< 70% of predicted, TLC \< 80% of predicted. * Allergy to insulin