Experimental drug aims to help COVID survivors breathe easier

NCT ID NCT04652518

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tested a drug called deupirfenidone (LYT-100) in 185 adults who had breathing problems after a serious COVID-19 infection. Participants took either the drug or a placebo for several weeks to see if it improved their ability to walk. The trial was stopped early, so the full results are not available.

What this could mean

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

Active substance

Deupirfenidone (LYT-100)

What this could lead to

If it worked, this could point toward a treatment for long-term breathing difficulties after COVID-19.

What could go wrong

The trial was terminated early, so we don't have clear results. It was also a small, early-phase study, so even if completed, success was not guaranteed.

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.

COVID-19 interstitial lung disease long COVID-19 pulmonary fibrosis

As listed by the trial registrant

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

Contacts and locations

Locations

  • Affinity Health Corp

    Nashville, Tennessee, 37203, United States

  • CETI - Centro de Estudos em Terapias Inovadoras

    Curitiba, Paraná, 80030-110, Brazil

  • Center for Advanced Research and Education

    Gainesville, Georgia, 30501, United States

  • Central Florida Pulmonary Group

    Orlando, Florida, 32803, United States

  • Circuit Clinical/Crystal Run Healthcare LLP

    Middletown, New York, 10941, United States

  • Clinica Central S.A

    Villa Regina, Río Negro Province, 8336, Argentina

  • Coastal Pulmonary and Critical Care

    St. Petersburg, Florida, 33704, United States

  • Frostwood Family Medicine

    Houston, Texas, 77024, United States

  • Fundacion Estudios Clinicos

    Rosario, Santa Fe Province, 2000, Argentina

  • GenHarp Clinical Solutions

    Evergreen Park, Illinois, 60805, United States

  • Guy's and St Thomas' NHS Foundation Trust - St Thomas' Hospital

    London, SE1 9RT, United Kingdom

  • Hospital de Clinicas de Porto Alegre

    Porto Alegre, Rio Grande do Sul, 90035-903, Brazil

  • Instituto de Doencas do Torax

    Rio de Janeiro, 21941-913, Brazil

  • Investigaciones en Patologias Respiratorias

    San Miguel de Tucumán, Tucumán Province, 4000, Argentina

  • Medical Center of Limited Liability Company "Harmoniya krasy"

    Kiev, 01135, Ukraine

  • National Institute for Infectious Diseases "Prof. Dr. Matei Balş" (Arensia Eploratory Medicine)

    Bucharest, Romania

  • North Alabama Medical Center

    Florence, Alabama, 35630, United States

  • PMSI Republican Clinical Hospital "T. Mosneaga"

    Chisinau, 2025, Moldova

  • Quirino Memorial Medical Center (QMMC)

    Quezon City, 1109, Philippines

  • Southeastern Research Center

    Winston-Salem, North Carolina, 27103, United States

  • Spitalul Clinic De Pneumoftiziologie "Leon Daniello" Cluj-Napoca

    Cluj-Napoca, 400332, Romania

  • Spitalul Clinic de Boli Infectioase si Pneumoftiziologie Dr. Victor Babes - Timisoara

    Timișoara, 300310, Romania

  • Spitalul Clinic de Boli Infectioase si Pneumoftiziologie Dr. Victor Babes Craiova

    Craiova, 200515, Romania

  • St George's University Hospitals NHS Foundation Trust - St George's Hospital

    London, SW17 0QT, United Kingdom

  • Tampa General Hospital

    Tampa, Florida, 33606, United States

  • The University of Texas Health Sciences Center at San Antonio

    San Antonio, Texas, 78229, United States

  • University of Alabama at Birmingham

    Birmingham, Alabama, 35294, United States

  • University of Pittsburg Medical Center

    Pittsburgh, Pennsylvania, 15213, United States

  • University of Southern California - Keck School of Medicine

    Los Angeles, California, 90033, United States

  • University of the Philippines Manila - Philippine General Hospital (PGH)

    Manila, 1000, Philippines

  • Vista Health Research

    Miami, Florida, 33176, United States