• Yuko Morishima and Nobuyuki Hizawa.
• Department of Pulmonary Medicine, Institute of Medicine, University of Tsukuba, Japan.
• Intern. Med. 2025 Jan 1; 64 (1): 172317-23.

AbstractAsthma and chronic obstructive pulmonary disease (COPD) have long been debated regarding their similarities and differences in clinical presentation and pathology. There has also been a discussion about how common therapeutics should be used differently for each disease. Traditionally, a "one size fits all" stepwise treatment has been chosen based on the severity of each case after categorizing the diseases, such as asthma or COPD. However, recently, the need for a precise approach for the treatment of individual patients beyond the disease category has been emphasized, especially in severe cases. To achieve precise personalized therapy, it has become necessary to focus on the individual phenotypes and underlying causal molecular mechanisms (endotypes) and to identify key therapeutic targets, which are called treatable traits. This review discusses the evidence for the importance of identifying treatable traits and therapeutic strategies based on the broader perspective of chronic obstructive airway disease rather than on individual diseases such as asthma or COPD.

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