Workup of difficult-to-treat asthma: implications from treatable traits

Area of Science:

• Pulmonology and Respiratory Medicine
• Precision Medicine in Chronic Diseases

Background:

• Traditional stepwise asthma management often falls short in complex, heterogeneous cases.
• Difficult-to-treat asthma requires novel therapeutic strategies beyond standard symptom-based adjustments.

Purpose of the Study:

• To evaluate the efficacy of a precision medicine approach targeting 'treatable traits' in a patient with difficult-to-treat asthma.
• To demonstrate the benefits of a multidimensional assessment for identifying individualized asthma management targets.

Main Methods:

• A 71-year-old male with uncontrolled asthma and frequent exacerbations underwent a comprehensive assessment.
• Evaluation covered pulmonary, extrapulmonary, and behavioral/risk factors to identify 15 treatable traits.
• Targeted interventions were applied based on the identified traits.

Main Results:

• The patient presented with multiple treatable traits, including airflow limitation, eosinophilic inflammation, comorbidities (cardiomyopathy, diabetes), and behavioral factors (smoking, inhaler polypharmacy).
• Following targeted treatment, significant improvement in dyspnea and asthma control was achieved.
• The patient successfully reduced medication to low-dose inhaled corticosteroids and a long-acting beta-agonist.

Conclusions:

• The 'treatable traits' approach offers a personalized and effective strategy for managing difficult-to-treat asthma.
• Multidimensional assessment is crucial for uncovering individual factors contributing to poor asthma control.
• This precision medicine model shows superior outcomes compared to traditional stepwise therapy for complex asthma cases.