Asthma

🧠 Standard of Care

Asthma is a chronic respiratory condition characterized by airway inflammation, hyperresponsiveness, and variable airflow obstruction. Effective management relies on a step-wise approach.

• Trigger Avoidance: Identifying and minimizing exposure to allergens (dust mites, pollen, pet dander), smoke, and chemical irritants.
• Asthma Action Plan: Every patient should have a written plan detailing daily maintenance steps, how to handle worsening symptoms, and when to seek emergency care.
• Regular Monitoring: Using peak flow meters and assessing symptom frequency to determine if current therapy levels are adequate.

💊 Maintenance and Rescue Therapy

Medications are broadly categorized into daily controllers and quick-relief inhalers.

Inhaled Corticosteroids (ICS)

The cornerstone of persistent asthma treatment. These daily inhalers reduce underlying airway inflammation to prevent exacerbations.

Long-Acting Beta Agonists (LABA)

Often combined with an ICS in a single inhaler, these medications keep airways open for 12 to 24 hours.

Short-Acting Beta Agonists (SABA)

Often referred to as "rescue inhalers" (e.g., Albuterol), these are used as-needed to quickly relax airway muscles during an asthma attack.

💉 Biologic Therapies for Severe Asthma

For patients with severe asthma whose symptoms remain uncontrolled despite high-dose inhalers, precision medicine offers new hope.

• Anti-IgE (Omalizumab): Targets the antibody responsible for allergic asthma reactions.
• Anti-IL-5 (Mepolizumab, Benralizumab): Targets eosinophils, a type of white blood cell that causes severe airway inflammation in eosinophilic asthma.
• Anti-IL-4/IL-13 (Dupilumab): Broadly reduces type 2 inflammation across the respiratory tract.

🔬 Active Clinical Trials

Researchers are continuously developing new targeted therapies. Here are some live trials actively recruiting participants:

• NCT06441812 (Guangdong Hengrui Pharmaceutical): A Phase II study evaluating the long-term safety and efficacy of SHR-1703 (multiple subcutaneous injections) in patients with Eosinophilic Asthma.
• NCT05341726 (Columbia University): The BREATHE trial, testing an efficacy-implementation intervention addressing shared decision-making among Black adults with uncontrolled asthma.
• NCT06360393 (University Medical Center Groningen): The OUTERSPACE-3 study assessing inhaler adherence and technique using a smart spacer in patients with severe asthma on biologics.

❓ Patient FAQ

Q: What is the difference between a rescue inhaler and a controller inhaler?
A: Rescue inhalers (like Albuterol) work within minutes to relax airway muscles during an attack but do not treat inflammation. Controller inhalers (like inhaled corticosteroids) are taken daily to reduce underlying airway swelling and prevent future attacks.

Q: Can asthma go away on its own?
A: Many children with asthma experience significant improvement as they enter adulthood, often becoming asymptomatic. However, asthma is a chronic disease and symptoms can return later in life.

Q: Is it safe to exercise with asthma?
A: Yes. With proper management (and sometimes using a rescue inhaler 15 minutes before activity), most people with asthma can safely exercise and even participate in elite sports.