Intervention: Albuterol Sulfate
Trial phase: Phase 3
SMILES: CC(C)(C)NCC(O)c1ccc(O)c(CO)c1.CC(C)(C)NCC(O)c1ccc(O)c(CO)c1.O=S(=O)(O)O
Sex: All
Age groups: Adult | Older Adult
Healthy volunteers: No
Participants at risk: 405
Group description: Participants received 90 mcg of ABS via eMDPI (that had a sensor on the top of device for the purposes of detecting and storing usage information), 1 to 2 inhalations every 4 hours, as needed for 12 weeks. ABS eMDPI was a rescue/reliever agent that included an eModule on top of the approved PROAIR RESPICLICK® inhaler. Participants were allowed to continue use of other COPD and non-COPD medications as advised by their physician without changes unless deemed necessary by their physician.
Eligibility criteria:
Inclusion Criteria:

The participant has had at least 1 episode of moderate or severe CE-COPD over the past 12 months before screening.
The participant must be able to demonstrate appropriate use of albuterol from the ABS eMDPI.
The participant is currently using a short-acting beta agonist (SABA) reliever plus at least one of the following: long-acting beta agonist (LABA), an inhaled corticosteroid (ICS)/LABA, a long-acting muscarinic antagonist (LAMA), or a LABA/LAMA.
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 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 greater than or equal to [≥]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 COPD.
The participant has used an investigational drug within 5 half-lives of it being discontinued or within1 month of Visit 2 (Baseline [Day 1]), 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 [milk protein]). 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.