Inhaled gene therapy aims to fix cystic fibrosis lungs

NCT ID NCT05248230

First seen Jun 25, 2026 · Last updated Jul 07, 2026 · Updated 3 times

Summary

This phase 1/2 trial tests a single inhaled dose of gene therapy called 4D-710 in 30 adults with cystic fibrosis who cannot take standard modulator drugs. The therapy delivers a working copy of the CFTR gene directly to lung cells. The main goal is to check safety and side effects, but researchers will also look for signs that the treatment is improving lung function.

What this could mean

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

Active substance
4D-710 (gene therapy delivered via inhalation)
What this could lead to
If successful, this could provide a new treatment option for cystic fibrosis lung disease, especially for people who cannot take current modulator therapies.
What could go wrong
This is an early phase trial with only 30 participants, so safety and effectiveness are not yet proven. Gene therapy may not reach enough lung cells or could cause side effects.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

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

Contacts and locations

Study contacts

  • Contact

    Email: •••••@•••••

Locations

  • Boston Children's Hospital

    RECRUITING

    Boston, Massachusetts, 02115, United States

  • Johns Hopkins Hospital

    RECRUITING

    Baltimore, Maryland, 21287, United States

  • Massachusetts General Hospital

    RECRUITING

    Boston, Massachusetts, 02114, United States

  • Medical University of South Carolina

    RECRUITING

    Charleston, South Carolina, 29425, United States

  • National Jewish Health

    RECRUITING

    Denver, Colorado, 80206, United States

  • Nationwide Children's Hospital

    RECRUITING

    Columbus, Ohio, 43205, United States

  • Northwestern Memorial Hospital

    RECRUITING

    Chicago, Illinois, 60611, United States

  • Penn State Health

    WITHDRAWN

    Hershey, Pennsylvania, 17033, United States

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

    RECRUITING

    Cleveland, Ohio, 44146, United States

  • The Hospital of the University of Pennsylvania

    RECRUITING

    Philadelphia, Pennsylvania, 19104, United States

  • The University of Arizona

    RECRUITING

    Tucson, Arizona, 85724, United States

  • The University of Texas Southwestern Medical Center

    RECRUITING

    Dallas, Texas, 75390, United States

  • University of Alabama Child Health Research Unit

    RECRUITING

    Birmingham, Alabama, 35233, United States

  • University of California San Francisco

    RECRUITING

    San Francisco, California, 94143, United States

  • University of Florida

    RECRUITING

    Gainesville, Florida, 32610, United States

  • University of Kansas Medical Center

    RECRUITING

    Kansas City, Kansas, 66160, United States

  • University of Miami Hospital

    RECRUITING

    Miami, Florida, 33136, United States

  • University of North Carolina at Chapel Hill

    COMPLETED

    Chapel Hill, North Carolina, 27599, United States

  • University of Washington Medical Center

    RECRUITING

    Seattle, Washington, 98195, United States

  • Virginia Commonwealth University Health System

    RECRUITING

    Richmond, Virginia, 23298, United States

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