The study seeks to evaluate the effectiveness of ARINA-1, an investigational inhaled medication, in reducing cough and mucus production in patients who are diagnosed with chronic bronchitis. If enrolled in this study, there will be four clinic visits, one telehealth visit, and one phone call. As part of the study assessments, a cough monitor will be worn on the wrist, as well as repeat spirometry, questionnaires, and bloodwork will be completed. The ARINA-1 will administered with a nebulizer provided to participants and is taken twice daily for 28 days. The total duration of this study is up to 12 weeks for each enrolled participant.

Compensation will be provided for your time for each visit that is completed.