Medications for Uncontrolled Asthma
For patients with uncontrolled asthma, inhaled corticosteroids (ICS) remain the cornerstone of therapy, with the addition of a long-acting beta-agonist (LABA) as the preferred next step when low-dose ICS alone fails to achieve control. 1
Stepwise Treatment Algorithm
Step 1: Assess Current Treatment Status
- If the patient is using short-acting beta-agonists (SABAs) more than 2 days per week for symptom relief (excluding exercise-induced bronchospasm prevention), this indicates inadequate control and necessitates stepping up anti-inflammatory therapy 1
Step 2: Initial Controller Therapy
- Low-dose inhaled corticosteroids are the most effective single long-term control medication and should be initiated for all patients with persistent asthma 1
- Available ICS options include: fluticasone, budesonide, beclomethasone, ciclesonide, mometasone, or triamcinolone, inhaled once or twice daily 1
Step 3: Escalation for Inadequate Control on Low-Dose ICS
The preferred approach is either:
- Low-dose ICS plus LABA combination (such as fluticasone/salmeterol or budesonide/formoterol), OR
- Medium-dose ICS alone 1
These two options should be given equal weight when deciding how to escalate therapy 1. The combination of ICS/LABA is more effective than doubling or quadrupling the ICS dose for achieving better asthma control and reducing exacerbation risks 2, 3, 4.
Critical Safety Warning: LABAs must NEVER be used as monotherapy for asthma—they carry an FDA black-box warning and should only be used in combination with ICS due to increased risk of severe exacerbations and death when used alone 1
Alternative options at Step 3 (if ICS/LABA cannot be used):
- Low-dose ICS plus leukotriene receptor antagonist (montelukast or zafirlukast) 1
- Low-dose ICS plus theophylline 1
Step 4: Moderate Persistent Asthma
- Medium-dose ICS plus LABA (preferred) 1
- Alternative: Medium-dose ICS plus leukotriene receptor antagonist, theophylline, or zileuton 1
Step 5: Severe Persistent Asthma
- High-dose ICS plus LABA 1
- Consider adding omalizumab (anti-IgE therapy) for patients aged 12 years and older with allergic asthma (documented by positive skin testing or RAST and elevated IgE levels) whose symptoms remain inadequately controlled 1
- Omalizumab is administered as subcutaneous injection every 2-4 weeks and has been shown to reduce asthma exacerbations even in severe disease 1
Step 6: Most Severe Asthma
- High-dose ICS plus LABA plus oral corticosteroids 1
- Consider omalizumab for patients with allergies 1
Alternative Controller Medications
Leukotriene Receptor Antagonists
- Montelukast (for patients >1 year old) or zafirlukast (for patients ≥7 years old) are appropriate alternatives for mild persistent asthma in patients unable or unwilling to use ICS 1
- These medications offer ease of use (once or twice daily oral dosing) and high compliance rates 1
- For patients 12 years and older requiring add-on therapy to ICS, LABA addition is preferred over leukotriene receptor antagonists 1
Newer Biologic Options
- Mepolizumab (anti-IL-5 therapy) is FDA-approved for add-on maintenance treatment of severe asthma in patients ≥6 years whose asthma is not controlled with current medications 5
- Administered as 100 mg subcutaneous injection every 4 weeks for adults and adolescents ≥12 years 5
- Helps prevent severe asthma attacks but does not treat acute symptoms 5
Quick-Relief Medications
- Short-acting beta-agonists (albuterol, levalbuterol, or pirbuterol) remain the most effective therapy for rapid reversal of airflow obstruction, inhaled every 4-6 hours as needed 1
- Ipratropium bromide (anticholinergic) can be added every 6 hours during moderate or severe exacerbations 1
Management of Acute Exacerbations
- Oral corticosteroids (prednisone, prednisolone, or methylprednisolone) should be used for moderate to severe exacerbations 1
- Adult dosing: 40-60 mg prednisone daily for 5-10 days without tapering 6
- Pediatric dosing: 1-2 mg/kg/day (maximum 60 mg/day) for 3-10 days 6
- No tapering is necessary for courses <7-10 days, especially if patients are concurrently taking ICS 6
Critical Pitfalls to Avoid
Never use LABAs as monotherapy—this significantly increases the risk of asthma-related death and severe exacerbations 1, 7
Do not discontinue corticosteroids abruptly without physician supervision, as this may cause systemic withdrawal symptoms or unmask previously suppressed conditions 5
Do not delay stepping up therapy when patients use SABAs more than twice weekly for symptom relief, as this indicates inadequate control 1
Avoid unnecessarily high ICS doses when combination therapy with LABA is equally or more effective 1
Check adherence, inhaler technique, and environmental control before escalating therapy, as poor technique or non-adherence often masquerades as treatment failure 1
Additional Considerations
- Subcutaneous allergen immunotherapy should be considered in steps 2-4 for patients with allergic asthma 1
- Patient education, environmental control, and management of comorbid conditions are essential at every treatment step 1
- Treatment should be adjusted based on the domains of current impairment (symptom frequency, functional limitations) and future risk (likelihood of exacerbations) 1