Using discrete choice experiments to investigate subject preferences for preventive asthma medication

Area of Science:

• Pulmonary Medicine
• Pharmacoeconomics
• Patient-Reported Outcomes

Background:

• Adherence to inhaled corticosteroids (ICS) is suboptimal, impacting asthma management.
• Preventer medications are vital for achieving favorable asthma outcomes.
• Patient preferences significantly influence medication adherence and treatment success.

Purpose of the Study:

• To investigate patient preferences for inhaled corticosteroid (ICS) therapy.
• To compare preferences between current ICS, hypothetical preventer medications, and no medication.
• To identify key attributes influencing patient decisions regarding asthma preventer medication.

Main Methods:

• A discrete choice experiment (DCE) was employed with 57 adults having mild-moderate asthma.
• Participants evaluated 16 scenarios based on 10 medication attributes.
• A random parameter multinomial logit model analyzed preferences for medication attributes.

Main Results:

• Patients prioritized the ability to engage in strenuous and sporting activities.
• Absence of side effects was a significant preference.
• Elimination of the need for daily peak flow monitoring was favored.
• Prescription collection frequency, administration route, and doctor recommendation strength did not significantly influence choices.

Conclusions:

• Patient preference for ICS centers on maximizing physical activity and minimizing side effects.
• Reducing monitoring burden, such as daily peak flow checks, is crucial.
• Understanding these preferences can guide the development of more effective asthma management strategies.