Bronchiectasis is a chronic lung condition where the airways become permanently damaged and widened, making it difficult for the body to clear mucus naturally. Understanding how to manage this condition through both standard treatments and emerging therapies being tested in clinical trials can help patients maintain a better quality of life and reduce the frequency of lung infections that can worsen the disease over time.

Managing a Lifelong Lung Condition: Goals and Approaches

When someone is diagnosed with bronchiectasis, the focus of treatment shifts to managing symptoms and preventing the condition from getting worse. While bronchiectasis cannot be cured, the goal is to help patients live as comfortably as possible by controlling cough, reducing mucus buildup, and preventing repeated lung infections that can cause further damage to the airways.^[1] The damaged airways in bronchiectasis lose their ability to clear mucus effectively, creating an environment where bacteria can grow and multiply, leading to a cycle of infection and inflammation.^[3]

Treatment strategies depend heavily on how severe the bronchiectasis is, which parts of the lungs are affected, and whether there are underlying conditions causing or worsening the disease. Some patients may have mild symptoms and only need occasional intervention, while others experience frequent infections and require more intensive daily management.^[12] A crucial aspect of successful treatment is early diagnosis and prompt management of the underlying cause, which can help prevent additional lung damage and preserve lung function.^[11]

Medical societies and expert organizations have developed guidelines to help doctors choose the best treatments for their patients with bronchiectasis. These recommendations are based on research evidence and clinical experience, and they continue to evolve as new therapies are developed and tested.^[15] Beyond approved standard treatments, there is ongoing research into new medications and approaches that may offer additional benefits, tested through carefully designed clinical trials around the world.

Standard Treatment: The Foundation of Bronchiectasis Management

The cornerstone of bronchiectasis treatment involves several approaches working together: clearing mucus from the airways, treating and preventing infections, and managing inflammation. These strategies aim to break the harmful cycle where mucus buildup leads to bacterial infection, which causes inflammation, which then leads to more mucus and further infection.^[5]

Antibiotics: Fighting Infections

Antibiotics are essential in treating bronchiectasis, as they combat the bacterial infections that develop when mucus accumulates in damaged airways. When patients experience an exacerbation (a period when symptoms suddenly worsen, also called a flare-up), doctors typically prescribe antibiotics for about 14 days.^[11] These medications can be taken by mouth as pills, breathed in through a special device called a nebulizer (which turns liquid medicine into a mist), or given through a vein in cases of severe infection.^[8]

For patients who experience three or more chest infections per year, doctors may recommend taking antibiotics long-term to help prevent future infections.^[4] This approach, known as maintenance antibiotic therapy, has become more common as evidence suggests it can reduce the frequency of exacerbations. Inhaled antibiotics are particularly useful for patients with chronic infection, as they deliver the medication directly to the lungs where it is needed most.^[11]

A specific class of antibiotics called macrolides has shown particular promise in bronchiectasis management. These medications, which include drugs like azithromycin, not only kill certain types of bacteria but also reduce inflammation in the airways.^[16] Macrolides may be prescribed for long-term use over several months, though doctors must carefully monitor for potential side effects, which can be serious in some cases.

Airway Clearance Techniques: Removing Mucus Daily

One of the most important skills patients with bronchiectasis can learn is how to clear mucus from their lungs effectively. This daily practice helps prevent mucus from building up and creating an environment where bacteria can thrive.^[13] A specialist called a respiratory physiotherapist teaches patients various breathing techniques and methods to move mucus up from the deep parts of the lungs to where it can be coughed out.^[4]

Several techniques are available for airway clearance. Chest physiotherapy involves having someone gently pound on the chest and back in different positions to help loosen mucus so it can be coughed up.^[13] Some patients use handheld devices called positive expiratory pressure (PEP) devices, which create vibrations while breathing through them to help break up mucus.^[13] There are also mechanical devices, including percussion vests that vibrate at high frequencies to shake mucus loose from the airway walls.^[14]

The effectiveness of airway clearance depends on being able to cough well enough to bring up the loosened mucus. Patients typically need to perform these techniques every day, sometimes more than once, to keep their airways as clear as possible.^[13] When mucus is particularly thick and difficult to cough up, doctors may recommend using a nebulizer to breathe in a salt solution before doing airway clearance exercises, which helps thin the mucus.^[4]

Medications to Help Clear Airways

Several types of medications can make it easier for patients to clear mucus from their lungs. Expectorants are drugs that help loosen mucus in the lungs, making it easier to cough up.^[11] They are often combined with decongestants to provide additional relief. Mucus-thinning medications, such as a drug called acetylcysteine, work by breaking down the thick, sticky mucus so it becomes more liquid and easier to expel from the airways.^[11]

Many patients are prescribed bronchodilators, which are inhaled medications that relax the muscles surrounding the airways. This allows the airways to open wider, making breathing easier and helping mucus move more freely.^[11] Bronchodilators come in short-acting forms that work quickly for about four to six hours, and long-acting versions that last 12 hours or more and are used daily for ongoing symptom control.^[16]

Some doctors prescribe inhaled corticosteroids, which are anti-inflammatory medications that can reduce swelling in the airways and may help prevent exacerbations.^[16] However, these medications can have side effects, including increased risk of bruising and oral infections, so their use is carefully considered based on each patient’s specific situation.

Additional Supportive Treatments

Beyond medications and airway clearance, several other treatments help manage bronchiectasis. Pulmonary rehabilitation is a structured program, usually lasting six to eight weeks, that combines supervised exercise classes with education about managing chronic lung conditions.^[4] While these programs were originally designed for people with another lung disease called COPD, research has shown they provide major benefits for bronchiectasis patients as well, improving both physical capacity and quality of life.

Staying well-hydrated by drinking plenty of water is important because dehydration can make mucus thicker and harder to clear from the lungs.^[4] Patients are encouraged to maintain good nutrition with a balanced diet, as proper nutrition supports overall health and the body’s ability to fight infections. Some patients may need nutritional supplements if they have difficulty eating enough due to their symptoms.^[6]

Vaccination is a critical preventive measure. Patients should receive annual influenza vaccines and the one-time pneumococcal vaccine to protect against pneumonia.^[6] COVID-19 vaccination is also recommended. These vaccines help reduce the risk of respiratory infections that could trigger severe exacerbations of bronchiectasis.

When Surgery Becomes Necessary

In certain situations, surgery may be recommended to remove the damaged portion of lung. This option is typically considered only when bronchiectasis is limited to a small, specific area of the lung and medications have not adequately controlled symptoms.^[6] Surgery might also be necessary if a patient experiences frequent severe bleeding from the airways.^[14] The procedure, called surgical resection, involves removing the affected lung tissue to prevent it from continuing to cause infections and other complications.

For patients with extremely severe, widespread bronchiectasis that has caused respiratory failure and dramatically affected quality of life, lung transplantation might be considered as a last resort.^[11] This is a major operation with significant risks and requires lifelong medication to prevent rejection of the transplanted lung, so it is reserved for the most serious cases where other treatments have failed.

Treatment in Clinical Trials: Exploring New Possibilities

While standard treatments help many patients manage bronchiectasis, researchers continue to search for new therapies that might work better or offer benefits that current treatments cannot provide. Clinical trials are carefully designed research studies that test whether new medications or treatment approaches are safe and effective before they can be approved for widespread use.^[15] For bronchiectasis, there is ongoing research into innovative therapies that target different aspects of the disease process.

Understanding Clinical Trial Phases

Clinical trials for new medications typically progress through three main phases. Phase I trials are small studies that test whether a new drug is safe in humans and what dose should be used. Phase II trials involve more patients and focus on whether the drug actually works to improve the condition being studied. Phase III trials are large studies that compare the new treatment directly with the current standard treatment to see if it offers advantages.^[15] Only after successfully completing these phases can a medication be considered for approval by regulatory authorities.

Novel Antibiotic Approaches

Researchers are investigating new ways to deliver antibiotics and new types of antibiotics specifically for bronchiectasis. One area of focus is developing improved inhaled antibiotic formulations that can deliver higher concentrations of medication directly to the infected areas of the lung while minimizing side effects in the rest of the body. Several studies are examining whether long-term use of certain inhaled antibiotics can reduce the number of exacerbations patients experience throughout the year.^[15]

Scientists are also testing whether cycling between different antibiotics (using one type for several months, then switching to another) might be more effective than using the same antibiotic continuously. This approach aims to prevent bacteria from developing resistance to any single medication, which is a growing concern with long-term antibiotic use.

Anti-inflammatory Therapies Under Investigation

Since inflammation plays a major role in the progressive lung damage seen in bronchiectasis, researchers are testing medications that specifically target inflammatory pathways. Some clinical trials are evaluating whether certain anti-inflammatory drugs can reduce the chronic inflammation in the airways without suppressing the immune system so much that patients become more vulnerable to infections.

One promising area involves studying substances that can break down the thick, sticky mucus in damaged airways by targeting specific components that make the mucus abnormally viscous. By making mucus less thick, these agents could theoretically make it easier for patients to clear their airways and reduce the bacterial burden in the lungs.

Emerging Therapies Targeting Specific Mechanisms

A particularly innovative therapy being studied is a drug called brensocatib, which belongs to a class known as dipeptidyl peptidase-1 (DPP-1) inhibitors. This medication works by blocking an enzyme that activates certain inflammatory proteins in the lungs.^[15] By preventing this activation, brensocatib aims to reduce inflammation and potentially decrease both the frequency and severity of exacerbations. Early phase clinical trials have shown promising results in terms of safety and potential benefit, with studies suggesting it might reduce inflammatory markers and improve clinical outcomes. Research is ongoing in Phase III trials to confirm whether this approach provides meaningful benefits compared to standard treatment.

Other experimental approaches target the underlying causes of bronchiectasis rather than just treating symptoms. For patients whose bronchiectasis is linked to immune system problems, researchers are testing whether immunoglobulin replacement therapy (providing antibodies the patient’s body cannot make on its own) can reduce infection rates. For those with certain genetic conditions, scientists are exploring whether gene therapy techniques might one day be able to correct the underlying defect causing airway damage.

Clinical Trial Locations and Participation

Clinical trials for bronchiectasis treatments are being conducted at specialized medical centers around the world, including locations in the United States, Europe, and other regions. Patients interested in participating in clinical trials typically need to meet specific eligibility criteria, which might include having bronchiectasis of a certain severity, experiencing a minimum number of exacerbations per year, or having particular bacterial organisms in their sputum samples.

Most common treatment methods

• Antibiotic Therapy
  • Oral antibiotics prescribed for approximately 14 days during acute exacerbations to treat bacterial infections
  • Inhaled antibiotics delivered via nebulizer for patients with chronic infections, providing high concentrations directly to the lungs
  • Intravenous antibiotics for severe infections that do not respond to oral medications
  • Long-term antibiotic use (maintenance therapy) for patients experiencing three or more exacerbations per year
  • Macrolide antibiotics that provide both antibacterial and anti-inflammatory effects
• Airway Clearance Techniques
  • Chest physiotherapy involving manual percussion in various positions to help loosen and mobilize mucus
  • Handheld positive expiratory pressure (PEP) devices that create vibrations while breathing to break up mucus
  • High-frequency chest wall oscillation vests that mechanically vibrate the chest to loosen secretions
  • Specialized breathing techniques taught by respiratory physiotherapists
  • Regular daily practice essential for preventing mucus accumulation and reducing infection risk
• Medications to Improve Mucus Clearance
  • Expectorants that help loosen mucus in the lungs, often combined with decongestants
  • Mucus-thinning medications like acetylcysteine that break down thick mucus
  • Inhaled hypertonic saline delivered through nebulizer to help hydrate airways and thin secretions
• Bronchodilators and Anti-inflammatory Medications
  • Short-acting bronchodilators for quick relief of breathing difficulty, lasting 4-6 hours
  • Long-acting bronchodilators used daily for sustained airway opening, lasting 12 hours or more
  • Inhaled corticosteroids to reduce airway inflammation, though used carefully due to potential side effects
• Pulmonary Rehabilitation
  • Structured 6-8 week programs combining supervised exercise with disease education
  • Improves physical capacity, reduces breathlessness, and enhances quality of life
  • Teaches energy conservation techniques and breathing control strategies
• Surgical Interventions
  • Surgical resection to remove damaged portions of lung when disease is localized
  • Considered when medications fail to control symptoms or severe bleeding occurs
  • Lung transplantation as last resort for severe, widespread disease causing respiratory failure
• Supportive Care Measures
  • Vaccination against influenza annually and pneumococcal disease to prevent infections
  • Maintaining adequate hydration to keep mucus thin and easier to clear
  • Nutritional support and dietary counseling to maintain strength and immune function
  • Oxygen therapy for patients with severe disease causing low blood oxygen levels