March 3, 2026Open Access

Long-term changes and risk factors for persistent cough and sputum in adult patients with asthma treated by Japanese specialists: The SARAS study (1997–2023)

Key Points

Persistent cough and sputum remain significant issues, affecting many adult asthma patients in Japan.
The study highlights that despite treatment advancements, residual symptoms are common among these patients.
Analysis of specialist care over 26 years indicates comorbidities like chronic rhinosinusitis are critical risk factors.
Addressing these factors may improve patient-centered outcomes and lead to better clinical remission.

Abstract

Despite therapeutic advances and guideline-based specialist care, residual symptoms, especially cough and sputum, persisted in a significant proportion of Japanese adult patients with asthma. Comprehensive management strategies targeting comorbidities such as chronic rhinosinusitis and smoking are essential to achieve clinical remission and improve patient-centered outcomes.

Long-term changes and risk factors for persistent cough and sputum in adult patients with asthma treated by Japanese specialists: The SARAS study (1997–2023)

Key Points

Abstract

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