Could a cold sore virus treatment save ICU pneumonia patients?

NCT ID NCT06134492

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

Summary

This study tests whether the antiviral drug acyclovir helps people on breathing machines who have pneumonia and also have herpes simplex virus (HSV) in their lungs. About 616 adults in intensive care will be randomly assigned to receive acyclovir or no antiviral treatment. The goal is to see if treating the virus improves survival, since current evidence is unclear and acyclovir can cause kidney side effects.

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Conditions

The condition(s) this trial relates to.

Community-Acquired Pneumonia Healthcare-Associated Pneumonia herpes simplex infectious disease nosocomial infection pneumonia Pneumonia, Ventilator-Associated viral pneumonia

As listed by the trial registrant

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

Contacts and locations

Locations

  • Evangelisches Klinikum Bethel

    RECRUITING

    Bielefeld, North Rhine-Westphalia, 33617, Germany

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

  • Evangelisches Klinikum Bethel

    RECRUITING

    Bielefeld, 33611, Germany

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

  • Klinikum Nürnberg, Campus Nord

    RECRUITING

    Nuremberg, Bavaria, 90419, Germany

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

  • Klinikum Nürnberg, Campus Süd

    RECRUITING

    Nuremberg, Bavaria, 90471, Germany

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

  • Klinikum der Ludwig-Maximilian-Universität München

    RECRUITING

    München, Bavaria, 81377, Germany

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

  • Klinikum rechts der Isar

    RECRUITING

    München, Bavaria, 81675, Germany

  • Klinikum rechts der Isar

    RECRUITING

    München, Bavaria, 81675, Germany

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

  • Marien Hospital Herne, Universitätsklinikum der Ruhr-Universität Bochum

    RECRUITING

    Herne, Nordreihn-Westfalen, 44625, Germany

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

  • RoMed Klinikum Rosenheim

    RECRUITING

    Rosenheim, Bavaria, 83022, Germany

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

  • Universitätsklinikum Augsburg

    RECRUITING

    Augsburg, Bavaria, 86156, Germany

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

  • Universitätsklinikum Bonn

    RECRUITING

    Bonn, North Rhine-Westphalia, 53127, Germany

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

  • Universitätsklinikum Dresden

    RECRUITING

    Dresden, Saxony, 01307, Germany

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

  • Universitätsklinikum Düsseldorf

    RECRUITING

    Düsseldorf, North Rhine-Westphalia, 40225, Germany

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

  • Universitätsklinikum Essen

    RECRUITING

    Essen, North Rhine-Westphalia, 45147, Germany

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

  • Universitätsklinikum Freiburg

    RECRUITING

    Freiburg im Breisgau, Baden-Wurttemberg, 79106, Germany

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

  • Universitätsklinikum Halle

    RECRUITING

    Halle, Saxony-Anhalt, 06120, Germany

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

  • Universitätsklinikum Hamburg Eppendorf

    RECRUITING

    Hamburg, 20246, Germany

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

  • Universitätsklinikum Heidelberg

    RECRUITING

    Heidelberg, Baden-Wurttemberg, 69120, Germany

  • Universitätsklinikum Heidelberg

    RECRUITING

    Heidelberg, Baden-Wurttemberg, 69120, Germany

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

  • Universitätsklinikum Jena

    RECRUITING

    Jena, Thuringia, 07747, Germany

    Contact Phone: •••-•••-•••• Email: •••••@•••••

  • Universitätsklinikum Köln AöR

    RECRUITING

    Cologne, North Rhine-Westphalia, 50937, Germany

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

  • Universitätsklinikum Leipzig

    RECRUITING

    Leipzig, Saxony, 04103, Germany

  • Universitätsklinikum Leipzig

    RECRUITING

    Leipzig, Saxony, 04103, Germany

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

  • Universitätsklinikum Münster

    RECRUITING

    Münster, North Rhine-Westphalia, 48149, Germany

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

  • Universitätsklinikum Regensburg

    RECRUITING

    Regensburg, Bavaria, 93053, Germany

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

  • Universitätsklinikum Schleswig-Holstein Campus Kiel

    RECRUITING

    Kiel, Schleswig-Holstein, 24105, Germany

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

  • Universitätsklinikum Schleswig-Holstein Campus Lübeck

    RECRUITING

    Lübeck, Schleswig-Holstein, 23538, Germany

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

  • Universitätsklinikum Tübingen

    RECRUITING

    Tübingen, Baden-Wurttemberg, 72076, Germany

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact