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Condition Guide

New Treatments & Clinical Trials for Bronchiectasis

Last updated June 2026Data from ClinicalTrials.gov112 active trials
← Browse all Bronchiectasis trials

Bronchiectasis is permanent widening of the airways in the lungs, usually from repeated infections or inflammation. It affects about 350,000 to 500,000 people in the United States. Treatment focuses on airway clearance, managing infections with antibiotics, and addressing the underlying cause when one can be identified.

What's actually going on in research

Trials are testing inhaled antibiotics to prevent infections, anti-inflammatory drugs to reduce airway damage, and mucolytics to help clear mucus. Researchers are also studying macrolide antibiotics for their anti-inflammatory effects, devices that help with airway clearance, and treatments targeting specific bacteria like Pseudomonas aeruginosa that commonly infect damaged airways.

Inhaled antibiotics

Several inhaled antibiotics are being tested to prevent infections in people with bronchiectasis. The goal is to reduce how often antibiotics need to be taken by mouth or through an IV.

Macrolide therapy

Low-dose azithromycin and other macrolides appear to reduce infections through anti-inflammatory effects beyond killing bacteria. Studies are determining which patients benefit most and how long to continue treatment.

Mucolytic agents

Drugs that thin mucus may help people clear their airways more effectively. Trials are testing whether this translates to fewer infections and better lung function over time.

What to know before you search

Eligibility often depends on how many infections you've had in the past year, what bacteria are found in your sputum, and whether you have specific underlying causes like cystic fibrosis or immune deficiency.

What types of trials are currently open

  • Antibiotic trialsTesting inhaled antibiotics, often taken several times weekly, to prevent infections and reduce symptoms in people with frequent exacerbations.
  • Anti-inflammatory trialsTesting macrolide antibiotics and other anti-inflammatory drugs to reduce airway inflammation and prevent damage.
  • Mucolytic trialsTesting drugs that thin mucus to make airway clearance easier and reduce infection risk.
  • Device trialsTesting airway clearance devices and techniques to help people clear mucus more effectively at home.
  • Natural history studiesFollowing people with bronchiectasis to understand how the disease progresses and what factors predict worse outcomes.

Recently added Bronchiectasis trials

RecruitingSafety & dosing

A Phase 1a/1b Study to Investigate the Safety, Tolerability, Microbiological Response, and Pharmacokinetics of Inhaled Rev-56 in Adult Healthy Volunteers and Adult Non-cystic Fibrosis Bronchiectasis (NCFB) Patients With Chronic P. Aeruginosa

This is a Phase 1a/1b study to test the safety, tolerability, microbiological response, and pharmacokinetics of inhaled Rev-56 compared to placebo in adult healthy participants and non-cystic fibrosis bronchiectasis (NCFB) patients with P. aeruginosa, respectively. Phase 1a (Part A) will evaluate single doses of inhaled Rev-56 in adult healthy participants and includes up to 5 cohorts. Eligible participants will be randomized to active treatment or placebo in a 3:1 randomization scheme. Phase 1b (Part B) will evaluate the safety, tolerability, microbiological response, and pharmacokinetics of multiple doses of inhaled Rev-56 in NCFB patients with P. aeruginosa and includes 2 cohorts evaluating once daily dosing and twice daily dosing, respectively. Eligible participants will be randomized to active treatment or placebo in a 2:1 randomization scheme.

Miami, Florida, United States
RecruitingSafety & dosing

First in Human Trial of CTX-187 in Healthy Volunteers and Chronically Infected Patients

The primary objective of this trial is to assess the safety and tolerability of single and multiple ascending intravenously (IV) infused doses of CTX-187 when administered to healthy adult male and female participants and participants with a bacterial infection (bronchiectasis participants chronically infected with P. aeruginosa).

Groningen, Netherlands
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