Steroid Management for Asthma
Core Principle
Inhaled corticosteroids are the most potent and consistently effective long-term control medication for asthma and should be the foundation of treatment for all patients with persistent asthma. 1
Stepwise Approach Based on Asthma Severity
Mild Intermittent Asthma
- No daily controller treatment required 1
- Use short-acting β2-agonists as needed for symptom relief 1
- For acute exacerbations: oral corticosteroids (prednisolone 30-40 mg daily) for short courses 1
Mild Persistent Asthma
- Preferred: Low-dose inhaled corticosteroids (equivalent to 200-800 µg/day beclomethasone) 1
- Alternative options (if patient cannot tolerate inhaled steroids): leukotriene receptor antagonists, cromolyn, nedocromil, or sustained-release theophylline 1
- For children <5 years: low-dose inhaled corticosteroids via nebulizer, dry powder inhaler, or metered-dose inhaler with spacer 1
Moderate Persistent Asthma
- Preferred: Low-dose inhaled corticosteroids PLUS long-acting β2-agonist 1
- Alternative: Medium-dose inhaled corticosteroids alone (up to 2000 µg/day beclomethasone equivalent) 1
- Critical warning: Long-acting β2-agonists should NEVER be used as monotherapy due to increased risk of exacerbations and death 1
Severe Persistent Asthma
- High-dose inhaled corticosteroids (up to 2000 µg/day beclomethasone equivalent) PLUS long-acting β2-agonist 1
- Consider adding leukotriene receptor antagonist or theophylline as third-line agent 1
- Oral corticosteroids may be required for maintenance in the most severe cases 1
- Consider omalizumab for patients with allergic asthma inadequately controlled on high-dose therapy 2
Acute Exacerbations
Moderate to Severe Exacerbations
- Oral systemic corticosteroids are mandatory 1
- Dosing:
- Route: Oral administration is equally effective as IV and should be preferred 1
- Tapering is NOT necessary for short courses up to 2 weeks; can stop abruptly from full dose 1
Life-Threatening Features
- Immediate high-dose systemic steroids (prednisolone 30-60 mg OR IV hydrocortisone 200 mg) 1
- Continue every 6 hours until clinical improvement 1
Delivery Device Optimization
Metered-Dose Inhalers
- Always use with spacer devices (valved holding chambers) to markedly increase lung deposition from 20-30% to much higher levels 1
- Spacers are particularly critical for children and patients with poor technique 1
Device Selection Algorithm
- Start with metered-dose inhaler plus spacer 1
- If patient cannot manage spacer bulk during daytime, switch to dry powder inhaler or breath-actuated device 1
- For children <5 years: nebulizer, dry powder inhaler, or metered-dose inhaler with spacer ± face mask 1
Dose Titration Principles
Stepping Up Treatment
- Trigger for intensification: short-acting β2-agonist use >2 days/week (excluding exercise prophylaxis) or >2 nights/month 1
- Before increasing dose, verify adherence and proper inhaler technique 1
- When inadequately controlled on low-dose inhaled corticosteroids, give equal weight to either increasing steroid dose OR adding long-acting β2-agonist 1
Stepping Down Treatment
- Require 1-3 months of stability before dose reduction 1
- Decrease dose by 25-50% at each step 1
- Monitor closely for loss of control during reduction phase 1
Special Populations
Children 6 to <12 Years
- Inhaled corticosteroids (≥200 mcg/day fluticasone equivalent) are first-line for persistent asthma 2
- Demonstrated reduction in exacerbation rates (rate ratio 0.69 at 24 weeks, 0.57 at 52 weeks) 2
- Long-acting β2-agonists are NOT the preferred adjunctive therapy in this age group (unlike adults ≥12 years) 1
Smokers
- Decreased responsiveness to corticosteroids due to persistent irritation and altered inflammatory pathways 1
- May require higher doses or alternative anti-inflammatory strategies 1
Black Patients
- Potential genetic variations in β2-adrenergic receptors may reduce long-acting β2-agonist effectiveness 1
- Children may have increased risk of corticosteroid insensitivity due to T-cell pathway deficiencies 1
Monitoring Requirements
Indicators of Adequate Control
- Minimal or no chronic symptoms 1
- No limitation of activities 1
- Minimal need for short-acting β2-agonists (<2 days/week) 1
- Maintenance of personal best pulmonary function (FEV1 or PEF ≥80% predicted) 1
- Minimal or no exacerbations 1
Objective Measurements
- Peak expiratory flow or FEV1 monitoring is essential, analogous to glucose monitoring in diabetes 1
- Validated questionnaires (Asthma Control Test, Asthma Control Questionnaire) provide standardized assessment 1
Critical Safety Considerations
Systemic Effects of Inhaled Corticosteroids
- Generally not clinically important except with long-term high-dose use 1
- Local side effects: oral candidiasis (rinse mouth after use), dysphonia (may resolve by switching from dry powder to metered-dose inhaler with spacer) 1
Long-Acting β2-Agonist Safety
- FDA warning: increased severe exacerbations and deaths when used as monotherapy 1
- Must ALWAYS be combined with inhaled corticosteroids 1
- Consider increasing inhaled corticosteroid dose as alternative to adding long-acting β2-agonist 1
Oral Corticosteroid Risks
- Short courses produce very low rates of gastrointestinal bleeding 1
- Greatest risk in patients with history of GI bleeding or on anticoagulants 1
- Sedation is contraindicated in acute exacerbations 1