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Is asthma curable?

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"asthma"[MeSH Terms] AND "remission"

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asthma cure or remission GINA clinical remission definition

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No, asthma is not curable at present. It can often be controlled very well, and some people go into remission.
Why it isn't "cured"
  • Asthma is a chronic inflammatory airway disease. Symptoms can disappear for years while the underlying airway changes persist.
  • Murray & Nadel's textbook describes a birth cohort followed to age 26. Wheezing remitted in 27% of people, but it came back in nearly half of those by age 26. About 50% of adults who recall childhood asthma still have symptoms (Murray & Nadel's Textbook of Respiratory Medicine, p. 1378).
  • Even in people with no symptoms and no medication, exhaled nitric oxide and airway responsiveness stay elevated. Bronchial biopsies still show more eosinophils, T cells and mast cells, and subepithelial fibrosis. So "spontaneous remission" may not mean the airway inflammation has gone (Murray & Nadel's, p. 1378).
  • Risk factors for asthma persisting into adulthood include house dust mite sensitization, lower FEV1, airway hyperresponsiveness, female sex and smoking.
What is realistic
  • Control: With inhaled corticosteroid-based treatment and trigger management, most people have few or no symptoms and live normally.
  • Childhood asthma: Some children improve or outgrow it, especially with milder disease. Relapse in adulthood is common.
  • Clinical remission: This is a newer treatment goal, defined in consensus statements, especially for severe asthma on biologics. The usual criteria, sustained for at least 12 months, are:
    • no exacerbations
    • no symptoms
    • no oral corticosteroids
    • stable or optimised lung function
  • Biologics: A 2025 systematic review and meta-analysis in Lancet Respiratory Medicine looked at how often patients with severe asthma on biologics reach clinical remission, and how the definitions differ. Remission here usually means on-treatment remission, not a cure.
Practical points
  • Don't stop controller medication because you feel well without talking to your doctor. Step-down should be supervised.
  • Avoiding triggers, not smoking, treating allergic rhinitis and checking inhaler technique all improve your chances of long-term control.
  • Airway remodeling and irreversible airflow limitation can develop in some people, so keeping asthma well controlled early matters.
My search turned up nothing that contradicts this. I did not review the biologic remission studies in detail, so I can't give specific remission rates.
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