New inhaled combo aims to fight stubborn lung infections in cystic fibrosis

NCT ID NCT06016088

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tested an inhaled drug called RSP-1502, which combines the antibiotic tobramycin with a substance called CaEDTA, in 71 people with cystic fibrosis who have chronic Pseudomonas lung infections. The goal was to check safety and find the right dose. Participants received either RSP-1502 or a standard tobramycin inhaler to compare effects.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance

RSP-1502 (tobramycin plus CaEDTA) inhaled via nebulizer

What this could lead to

If it works, this could offer a new inhaled treatment to better control chronic lung infections in cystic fibrosis, potentially reducing hospital stays.

What could go wrong

This is an early-phase safety and dosing study with only 71 participants, so it may not show clear benefit. Side effects or lack of effectiveness could limit its use.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Conditions

The condition(s) this trial relates to.

Bronchiolitis Obliterans Syndrome cystic fibrosis Pseudomonas aeruginosa infectious disease Pseudomonas infection Recurrence respiratory tract infectious disorder

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • Augusta University

    Augusta, Georgia, 30912, United States

  • Center for Cystic Fibrosis at Keck Medical Center of USC

    Los Angeles, California, 90033, United States

  • Columbia University Cystic Fibrosis Program

    New York, New York, 10027, United States

  • Dell Children's Medical Center of Central Texas

    Austin, Texas, 78723, United States

  • Lung Institute of Western Australia

    Nedlands, Western Australia, Australia

  • Nationwide Children's Hospital

    Columbus, Ohio, 43205, United States

  • Queensland Children's Hospital

    Brisbane, Queensland, Australia

  • Rainbow Babies and Children's Hospital / University Hospitals Cleveland Medical Center

    Cleveland, Ohio, 44106, United States

  • Royal Adelaide Hospital

    Adelaide, South Australia, Australia

  • Royal Prince Albert Hospital

    Camperdown, New South Wales, Australia

  • Stanford University Medical Center

    Palo Alto, California, 94305, United States

  • The Alfred Hospital

    Melbourne, Victoria, Australia

  • The Cystic Fibrosis Institute

    Northfield, Illinois, 60093, United States

  • The Kids Research Institute Australia, Perth Children's Hospital

    Perth, Western Australia, Australia

  • The Minnesota Cystic Fibrosis Center

    Minneapolis, Minnesota, 55403, United States

  • The Prince Charles Hospital

    Brisbane, Queensland, Australia

  • The Royal Children's Hospital

    Parkville, Victoria, Australia

  • Tucson Cystic Fibrosis Center

    Tucson, Arizona, 85750, United States

  • Tulane University

    New Orleans, Louisiana, 70118, United States

  • University of Pennsylvania

    Philadelphia, Pennsylvania, 19104, United States

  • Washington University School of Medicine

    St Louis, Missouri, 63130, United States

  • Westmead Hospital

    Westmead, New South Wales, Australia