a study to evaluate the relationship between use of albuterol multidose dry powder inhaler with an emodule (emdpi) and exacerbations in participants with asthma

Conditions: Asthma

Summary: this is a phase 3b, 12-week, multicenter, open-label study to evaluate the relationship between albuterol sulfate (abs) emdpi and clinical asthma exacerbation (cae) in adult participants at least 18 years of age with exacerbation-prone asthma. the abs emdpi dose will be 90 micrograms (mcg), 1 to 2 inhalations every 4 hours as needed, but participant dosing will not be limited to this dosing regimen. the purpose of this study is to evaluate the relationship between albuterol dosing and cae.


Eligibility criteria:
inclusion criteria: * the participant has had at least 1 episode of a severe cae over the past 12 months before screening. if on a biologic (for example, omalizumab, mepolizumab, or reslizumab) and/or post-bronchial thermoplasty, exacerbation has occurred after these interventions. * the participant is using a moderate-dose inhaled corticosteroid (ics) equivalent to at least 440 mcg daily of fluticasone propionate. * the participant's baseline asthma therapy regimen, including oral corticosteroids, leukotriene antagonists, 5-lipoxygenase inhibitors, long-acting beta agonist (laba), long-acting muscarinic agent, or cromolyn, biologicals, theophylline, or mepolizumab, is allowed. * the participant must be willing and able to comply with study requirements as specified in the protocol, including the use of a wearable accelerometer for the subset of participants who consent to use of the device. * the participant is willing to discontinue all other rescue or maintenance short-acting beta 2 agonist (saba) or antimuscarinic agents and replace them with the study-provided abs emdpi for the duration of the trial. * women of childbearing potential (not surgically sterile or at least 2 years postmenopausal) must have exclusively same-sex partners or use a highly effective method of birth control and must agree to continue the use of this method for the duration of the study and for 30 days after discontinuation of the investigational medicinal product (imp). * additional criteria apply, please contact the investigator for more information exclusion criteria: * the participant has any clinically significant medical condition (treated or untreated) that, in the opinion of the investigator, would interfere with participation in the study. * the participant has any other confounding underlying lung disorder other than asthma. * the participant has used an investigational drug within 5 half-lives of it being discontinued or 1 month of baseline visit, whichever is longer. * the participant is a pregnant or lactating woman, or plans to become pregnant during the study. note: any woman becoming pregnant during the study will be withdrawn from the study. * the participant is known to be allergic to albuterol or any of the excipients in the imp or rescue medication formulation (that is, lactose). dietary lactose intolerance does not exclude the participant from inclusion in the study or as per the investigator's medical discretion. * the participant has a history or presence of "silent" infections, including positive testing for human immunodeficiency virus types 1 and 2, hepatitis b, hepatitis c, and tuberculosis. * additional criteria apply, please contact the investigator for more information