The Importance of Tailored Education And Device Handling for Asthmatic Patients

Eligible Patient Population: Patients on GINA step 2-4 therapy who are partially or uncontrolled (ACT \<25) and are receiving Foster Nexthaler® therapy as per prescribing guidelines, regardless of the study. Patients on GINA step 3 therapy receive a low-dose ICS-formoterol regimen (2x1 inhalations of Foster Nexthaler® 100/6 μg), while those on GINA step 4 receive a medium-dose ICS-formoterol regimen (2x2 inhalations of Foster Nexthaler® 100/6 μg). Whenever possible, Foster Nexthaler® 100/6 μg is used as a reliever medication following the MART principles. If the treating physician opts for salbutamol (Ventolin®, Buventol®) instead, the patient may still be included in the study, provided justification is given, considering the difficulty of training with multiple inhalation devices (pMDI and DPI with different characteristics). Study Procedures: Lung function tests will be performed on enrolled patients. The investigating physician will evaluate the recorded spirometry curves, which will be used for computer modeling to assess pulmonary drug deposition. The spirometry curves are also useful for evaluating the patient's condition and monitoring progress. During the study visits (V1 - enrollment, V2 - 1 month, V3 - 3 months), the following data will be recorded: patient demographics, medical history, treatment details, risk factors, medication adherence (based on prescription refills and patient self-report), and quality of life assessment. Data collection, particularly questionnaire results, will follow the daily routine of the study center. Study Objective: The aim is to demonstrate that patient education on using a specific inhalation device (Foster Nexthaler®), optimizing inhalation technique (prolonging breath-hold time), and the resulting increased drug deposition lead to measurable clinical benefits, improved asthma control, and higher ACT scores. Education on inhaler use and practicing optimal inhalation techniques are expected to improve lung function, maintain adherence, and reduce the need for rescue medication.