Management of COPD
Smoking cessation combined with intensive counseling and pharmacotherapy is the single most critical intervention at all disease stages, as it is the only treatment proven to reduce mortality and slow the accelerated decline in lung function characteristic of COPD. 1, 2, 3
Smoking Cessation: The Foundation of COPD Management
- Combination nicotine replacement therapy (patch plus rapid-acting form such as gum or nasal spray) together with either varenicline or bupropion, plus intensive behavioral counseling, achieves sustained quit rates of 25% versus 3-5% with willpower alone. 2, 4
- Varenicline appears to be the most effective single pharmacologic agent for smoking cessation in COPD patients. 5, 6
- Active smoking cessation programs cannot restore lost lung function but prevent the accelerated decline seen in continuing smokers. 7
Pharmacological Management: Staged Approach by Disease Severity
Mild COPD (FEV₁ ≥ 70% predicted)
- Asymptomatic patients require no drug treatment. 1, 3
- Symptomatic patients should receive short-acting β₂-agonist (SABA) or short-acting anticholinergic (SAMA) as needed for symptom relief. 7, 1, 2
Moderate COPD (FEV₁ 50-79% predicted)
- First-line therapy: long-acting muscarinic antagonist (LAMA) monotherapy, preferred over long-acting β₂-agonist (LABA) for superior exacerbation prevention. 1, 2, 3
- Typical LAMA agents include tiotropium 18 µg once daily, umeclidinium 62.5 µg once daily, or aclidinium 400 µg twice daily. 1
- Consider a corticosteroid trial (30 mg prednisolone daily for 2 weeks with spirometric assessment before and after) in all patients with moderate disease. 7, 2
- A positive corticosteroid response requires objective improvement: FEV₁ increase of ≥200 ml AND ≥15% of baseline; only 10-20% of COPD patients demonstrate this response. 7, 1
Severe COPD (FEV₁ < 50% predicted)
- First-line therapy: fixed-dose combination of LAMA + LABA, which provides superior bronchodilation and reduces exacerbations by approximately 13-17% compared to monotherapy. 1, 2, 3
- Common LAMA/LABA combinations include umeclidinium/vilanterol or tiotropium/olodaterol. 1
Triple Therapy (LAMA + LABA + Inhaled Corticosteroid)
- Reserve triple therapy for high-risk patients with FEV₁ < 50% predicted AND either ≥2 moderate exacerbations or ≥1 hospitalization in the previous year. 1
- Recommended ICS doses in combination products: fluticasone 250-500 µg twice daily or budesonide 320-400 µg twice daily. 1
- LABA/ICS combinations may be first-choice for patients with asthma-COPD overlap or blood eosinophil counts ≥150-200 cells/µL. 1
Inhaler Technique: A Critical Component
- Optimize inhaler technique and select an appropriate delivery device at every clinical visit, as 76% of COPD patients make important errors with metered-dose inhalers. 1, 2, 3
- After inhalation, patients should rinse their mouth with water without swallowing to reduce risk of oropharyngeal candidiasis. 8
- Metered-dose inhalers with spacers deliver equivalent lung function improvements compared to nebulizers and are more cost-effective. 1
Non-Pharmacological Interventions
Pulmonary Rehabilitation
- Refer every patient with moderate-to-severe COPD and high symptom burden (CAT score ≥10) to comprehensive pulmonary rehabilitation. 1, 2, 3
- Programs should include physiotherapy, muscle training, nutritional support, and education. 7, 1
- Pulmonary rehabilitation improves exercise capacity, reduces dyspnea, enhances quality of life, and lowers hospitalization rates. 2, 3
Vaccinations
- Administer annual influenza vaccination to all COPD patients; it reduces COPD-related mortality by approximately 70% in older adults. 1, 2, 3
- Provide pneumococcal vaccination (PCV13 + PPSV23 for patients ≥65 years; PPSV23 alone for younger patients with significant comorbidities), with revaccination every 5-10 years. 1, 3
Nutritional Management
- Both obesity and malnutrition require treatment, as malnutrition is associated with respiratory muscle dysfunction and increased mortality. 7, 3
- Weight reduction in obese patients reduces energy requirements of exercise and improves ability to cope with disability. 3
Long-Term Oxygen Therapy (LTOT)
- LTOT prolongs survival and is one of only two interventions (along with smoking cessation) proven to reduce mortality in severe COPD. 1, 2, 3
- Prescribe LTOT when arterial PaO₂ ≤55 mmHg (7.3 kPa) on two separate measurements at least three weeks apart, with a goal of maintaining SpO₂ ≥90% during rest, sleep, and exertion. 7, 1, 2, 3
- LTOT improves five-year survival from 25% to 41%, reduces secondary polycythemia, and prevents progression of pulmonary hypertension. 3
- Oxygen concentrators are the easiest mode of treatment for home use. 1
- Do not prescribe short-burst (prn) oxygen for relief of breathlessness, as supporting evidence is lacking. 7, 2
Management of Acute Exacerbations
Bronchodilator Therapy
- Immediately increase the dose and frequency of short-acting bronchodilators at the onset of an exacerbation. 2, 3
- Use metered-dose inhaler with spacer or hand-held nebulizer; consider nebulizers if inhaler technique is inadequate. 1, 3
Systemic Corticosteroids
- Administer 30-40 mg prednisone orally daily for 5-7 days to improve lung function and shorten recovery time. 1, 2, 3
- Oral prednisolone is equally effective to intravenous administration, making outpatient treatment feasible for most exacerbations. 1
- Do not extend corticosteroid therapy beyond 5-7 days, as longer courses provide no additional benefit and increase adverse effects. 1
Antibiotic Therapy
- Prescribe antibiotics (7-14 day course) when ≥2 of the following are present: increased breathlessness, increased sputum volume, or purulent sputum. 1, 2, 3
- Antibiotics reduce short-term mortality by 77%, treatment failure by 53%, and sputum purulence by 44% when appropriately indicated. 1
Hospitalization Criteria
- Hospitalize patients with severe dyspnea, markedly poor general condition, current LTOT use, markedly reduced activity level, or adverse social circumstances. 7, 2
- More than 80% of exacerbations can be managed in the outpatient setting with appropriate pharmacologic treatment. 1
Advanced Disease Management
Non-Invasive Ventilation (NIV)
- Offer NIV to patients with chronic severe hypercapnia who have a prior hospitalization for acute respiratory failure, as it lowers mortality and prevents rehospitalization. 2
Surgical Options
- Consider lung volume reduction surgery, bullectomy, or lung transplantation for selected patients with advanced emphysema refractory to optimized medical therapy. 7, 2
- Surgery is indicated for recurrent pneumothoraces and isolated bullous disease. 7
Palliative Care
- Use low-dose, long-acting oral or parenteral opioids to alleviate refractory dyspnea in severe COPD. 2
- Screen for and treat depression, which is common in severe COPD and adversely affects outcomes. 7, 2
Critical Pitfalls to Avoid
- Beta-blocking agents (including eyedrop formulations) must be avoided in all COPD patients. 1, 2, 3
- Theophyllines are of limited value in routine COPD management and should not be used as first-line therapy. 7, 1, 2
- There is no role for other anti-inflammatory drugs beyond inhaled corticosteroids in COPD management. 7, 2
- There is no evidence supporting the use of prophylactic antibiotics given continuously or intermittently in stable COPD patients. 1
- Never rely on subjective improvement alone when assessing corticosteroid response; objective spirometric improvement (≥200 ml AND ≥15% FEV₁ increase) is required. 7, 3
- Patients using LABA/ICS or LABA/LAMA combinations should not use additional LABA for any reason. 8