Long-term inhaled corticosteroid use for COPD linked to serious long-term health risks, suggests research

Inhaled corticosteroids (ICS) are commonly prescribed for chronic obstructive pulmonary disease (COPD), but not recommended as first-line treatment unless patients have asthma/COPD overlap or frequent exacerbations. This study examined whether long-term ICS use (more than two years) increases the risk of serious health conditions compared with short-term use (less than 4 months).

Researchers analyzed electronic health records from over 20 million patients, focusing on individuals aged 45 and older with a COPD diagnosis. They created two groups: a prevalent cohort (patients diagnosed with COPD at any time) and an inception cohort (patients newly diagnosed with COPD). Using propensity score matching, they compared long-term ICS users with those with short-term use. Researchers examined the risk of developing both a composite outcome (any of five major conditions) and individual health outcomes for over 500,000 people.

Main Results:

Overall Risk (Composite Outcome)

• Compared with those using ICS for a short time, long-term ICS users were more than twice as likely to develop at least one of the following conditions:

• Type 2 diabetes

• Cataracts

• Pneumonia

• Osteoporosis

• Nontraumatic fractures

Prevalent cohort (all COPD patients): risk was 165% higher Inception cohort (newly diagnosed COPD patients): risk was 160% higher Among newly diagnosed COPD patients, 1 in 5 long-term ICS users developed at least one of these conditions.