IRCT20230731058982N1 IRCT 2023-08-12 Tehran University of Medical Sciences Comparison of using corticosteroids metered dose inhaler with or without spacer Comparison of using corticosteroids metered dose inhaler with or without spacer in patients without coordination problems with uncontrolled or poorly controlled asthma, a randomized clinical trial 2023-08-21 anticipated 114 Complete https://irct.ir/trial/71678 interventional Randomization: Randomized, Blinding: Double blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Randomization description: First, each patient is given a number from 1 to 114 with a computerized random number generation algorithm. These numbers are placed randomly in two spacer or control groups, Blinding description: Due to the use of spacers in this study, the included patients will not be blinded to the intervention. The attending physician in this study will be blinded to the treatment of his patient in terms of receiving or not receiving a spacer. This means that the patient will be referred to the principal investigator, and then receive treatment according to the randomized group. Data analyzer will be blind to group assignment of patients. N/A Asthma. Intervention 1: Intervention group: Spacer group: A free-of-cost spacer is given to the patient to attach it to his corticosteroid spray, and take his ICS with the spacer for six weeks from the intervention time. Other treatments for the patient will be as before. The spacer is a plastic piece that is connected to the inhalation spray. Patients use corticosteroid inhalation (ICS) spray twice a day, which will be used twice a day for six weeks with a spacer in this group. Intervention 2: Control group: In this group, the patient will take his corticosteroid inhalation spray (ICS) twice a day without adding a spacer as prescribed by the doctor. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is There is no further information.