Treatment of Chronic Obstructive Pulmonary Disease (COPD)
The treatment of COPD should follow a stepwise approach based on symptom burden and exacerbation risk, with bronchodilators as the cornerstone of pharmacological management for all severity levels. 1, 2
Initial Assessment and Classification
- COPD patients should be classified into groups A, B, C, or D based on symptom burden and exacerbation history to guide treatment decisions 2
- Group A: low symptoms, low exacerbation risk
- Group B: high symptoms, low exacerbation risk
- Group C: low symptoms, high exacerbation risk
- Group D: high symptoms, high exacerbation risk 2
Pharmacological Treatment by Disease Severity
Mild COPD (Group A)
- Patients with no symptoms require no drug treatment 1
- For symptomatic patients, use short-acting bronchodilators (beta-agonists or anticholinergics) as needed 1, 3
- Inhaler technique must be demonstrated and regularly checked before prescribing 3, 1
Moderate COPD (Group B)
- Initial therapy should be a long-acting bronchodilator (LABA or LAMA) 1, 2
- Most patients can be controlled on a single long-acting bronchodilator 3, 1
- Long-acting muscarinic antagonists (LAMAs) like tiotropium are preferred for exacerbation prevention compared to LABAs 1, 4
Severe COPD (Groups C and D)
- Combination of LABA and LAMA bronchodilators is recommended for patients with persistent symptoms or exacerbations 1, 5
- LABA/LAMA combinations provide superior outcomes compared to monotherapy in patients with high symptom burden 2, 5
- For patients with history of exacerbations despite LABA/LAMA therapy, adding inhaled corticosteroids (ICS) should be considered 1, 6
- Wixela Inhub® 250/50 (fluticasone/salmeterol) is indicated for twice-daily maintenance treatment of airflow obstruction and to reduce exacerbations in COPD patients with a history of exacerbations 6
Exacerbation Management
- Short-acting bronchodilators are first-line treatment for exacerbations 2
- Systemic corticosteroids (40mg prednisone daily for 5 days) improve recovery time and lung function during exacerbations 1, 2
- Antibiotics can shorten recovery time and reduce risk of early relapse when indicated during exacerbations 1
Non-Pharmacological Management
- Smoking cessation should be continually encouraged for all current smokers 3, 2
- Reduction of exposure to occupational dusts, fumes, gases, and indoor/outdoor air pollutants is essential 3
- Pulmonary rehabilitation is recommended for patients with high symptom burden 2
Special Considerations
- Home nebulizer therapy should only be prescribed after formal assessment by a respiratory physician 3
- Beta-blocking agents (including eyedrop formulations) should be avoided 3, 1
- ICS use increases pneumonia risk, especially in current smokers, older patients, and those with prior pneumonia 2
- For severe disease with emphysema, consider referral for evaluation of lung volume reduction procedures in selected patients 3
Delivery Devices
- Metered dose inhalers are the most cost-effective delivery device, but proper technique is essential 3
- If patients cannot use metered dose inhalers correctly, alternative devices like dry powder inhalers should be considered 3
- Inhaler technique must be demonstrated before prescribing and re-checked regularly 3
Important Pitfalls to Avoid
- Do not use ICS monotherapy in COPD 1
- Do not prescribe home nebulizer therapy without proper assessment 3
- Do not use beta-blockers in COPD patients 3, 1
- Do not use LABA/ICS as first-line therapy unless there are features suggesting asthma-COPD overlap 1
- Do not use higher doses of medications than recommended as this may increase side effects without additional benefit 6