NCT06134492

Brief Summary

Almost 90 out of 100 people carry herpes simplex viruses (HSV). Once a person has been infected with the herpes viruses, he or she can't get rid of them for the rest of her/his life. For the most part, the viruses are in a dormant state. Only when the immune system is weakened, for example in the case of a serious illness or stress, are the viruses reactivated. They then mainly cause cold sores, which are harmless for healthy people and usually heal without therapy. However, especially in people with a weakened immune system, HSV can also cause serious infections, such as meningitis. In almost every second mechanically ventilated patient in intensive care who has pneumonia, HSV can be detected in the respiratory tract. This is caused by reactivation of the viruses as a result of the severe underlying disease and stress during intensive care therapy. Whether treatment of the herpes viruses (e.g. with acyclovir) is necessary in this situation and helps the patients to cure has not been clarified, especially as acyclovir can also cause side effects such as a deterioration in kidney function. Currently, the physicians decide to treat the herpes viruses in about half of the patients. Several studies have shown that patients for whom the physician decided to treat the viruses survived more often. However, all of these studies looked at the course of the disease only retrospectively and thus are subject to many biases (including physician selection of who receives treatment, missing data). A definitive conclusion as to whether herpesvirus therapy can be recommended cannot be drawn without doubt from these studies. Therefore, the investigators would like to investigate in a randomized controlled trial, i.e. patients are randomly assigned to the experimental (therapy of herpesviruses) or control group (no therapy of herpesviruses), the effect of therapy with acyclovir on survival in ventilated intensive care patients with lower respiratory tract infection (pneumonia) in whom a large amount of HSV was found in the respiratory tract. The goal of the study is to provide clarity on whether therapy will help patients recover.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
616

participants targeted

Target at P75+ for phase_3

Timeline
8mo left

Started Feb 2024

Typical duration for phase_3

Geographic Reach
1 country

28 active sites

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress78%
Feb 2024Dec 2026

First Submitted

Initial submission to the registry

November 1, 2023

Completed
17 days until next milestone

First Posted

Study publicly available on registry

November 18, 2023

Completed
3 months until next milestone

Study Start

First participant enrolled

February 20, 2024

Completed
2.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 1, 2026

Expected
5 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2026

Last Updated

November 21, 2025

Status Verified

November 1, 2025

Enrollment Period

2.4 years

First QC Date

November 1, 2023

Last Update Submit

November 18, 2025

Conditions

Keywords

PneumoniaHerpes SimplexMechanical VentilationAciclovir

Outcome Measures

Primary Outcomes (1)

  • mortality (survival status)

    survival status

    day 30

Secondary Outcomes (14)

  • Ventilation-free days

    day 30

  • Vasopressor-free days

    day 30

  • Delta SOFA score (Sepsis-related Organ Failure Assessment Score)

    Baseline - Day 10 or EOT if this event occurs earlier

  • Delta SOFA sub-score kidney (Sepsis-related Organ Failure Assessment Score)

    Baseline - Day 10 or EOT if this event occurs earlier

  • Delta GFR value

    Baseline - Day 10 or EOT if this event occurs earlier

  • +9 more secondary outcomes

Study Arms (2)

Treatment group

EXPERIMENTAL

Aciclovir therapy

Drug: Acyclovir

Comparison group

NO INTERVENTION

No study-specific treatment measures

Interventions

Dosage: 10mg/kg (current) body weight every 8 hours, dose adjustment to renal function according to technical information. Mode of administration: intravenous (i.v.)

Also known as: Aciclovir
Treatment group

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • ≥ 18 years
  • need for invasive or non-invasive respiratory support
  • PCR HSV-1 detection in BAL (≥ 10\^3 copies/ml)
  • Pneumonia (community or healthcare acquired, incl. ventilator-associated pneumonia)
  • declaration of consent by the patient or legal representative

You may not qualify if:

  • History of hypersensitivity to acyclovir or valacyclovir or other components of the investigational product.
  • Pregnancy/Lactation
  • Simultaneous participation in another interventional clinical trial
  • Decision to withhold life-sustaining therapies
  • Use of a virostatic agent (i.v. or p. os) with activity against herpes simplex (acyclovir, valacyclovir, famciclovir/penciclovir, brivudine, cidofovir, foscarnet) for therapeutic or prophylactic reasons at the time of randomization.
  • Solid organ transplantation, stem cell transplantation
  • Neutropenia (absolute neutrophil count \<1500/μl (\<1.5 × 109 /l)
  • Previous study participation in HerpMV

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (28)

Universitätsklinikum Freiburg

Freiburg im Breisgau, Baden-Wurttemberg, 79106, Germany

RECRUITING

Universitätsklinikum Heidelberg

Heidelberg, Baden-Wurttemberg, 69120, Germany

RECRUITING

Universitätsklinikum Heidelberg

Heidelberg, Baden-Wurttemberg, 69120, Germany

RECRUITING

Universitätsklinikum Tübingen

Tübingen, Baden-Wurttemberg, 72076, Germany

RECRUITING

Universitätsklinikum Augsburg

Augsburg, Bavaria, 86156, Germany

RECRUITING

Klinikum der Ludwig-Maximilian-Universität München

München, Bavaria, 81377, Germany

RECRUITING

Klinikum rechts der Isar

München, Bavaria, 81675, Germany

RECRUITING

Klinikum rechts der Isar

München, Bavaria, 81675, Germany

RECRUITING

Klinikum Nürnberg, Campus Nord

Nuremberg, Bavaria, 90419, Germany

RECRUITING

Klinikum Nürnberg, Campus Süd

Nuremberg, Bavaria, 90471, Germany

RECRUITING

Universitätsklinikum Regensburg

Regensburg, Bavaria, 93053, Germany

RECRUITING

RoMed Klinikum Rosenheim

Rosenheim, Bavaria, 83022, Germany

RECRUITING

Marien Hospital Herne, Universitätsklinikum der Ruhr-Universität Bochum

Herne, Nordreihn-Westfalen, 44625, Germany

RECRUITING

Evangelisches Klinikum Bethel

Bielefeld, North Rhine-Westphalia, 33617, Germany

RECRUITING

Universitätsklinikum Bonn

Bonn, North Rhine-Westphalia, 53127, Germany

RECRUITING

Universitätsklinikum Köln AöR

Cologne, North Rhine-Westphalia, 50937, Germany

RECRUITING

Universitätsklinikum Düsseldorf

Düsseldorf, North Rhine-Westphalia, 40225, Germany

RECRUITING

Universitätsklinikum Essen

Essen, North Rhine-Westphalia, 45147, Germany

RECRUITING

Universitätsklinikum Münster

Münster, North Rhine-Westphalia, 48149, Germany

RECRUITING

Universitätsklinikum Dresden

Dresden, Saxony, 01307, Germany

RECRUITING

Universitätsklinikum Leipzig

Leipzig, Saxony, 04103, Germany

RECRUITING

Universitätsklinikum Leipzig

Leipzig, Saxony, 04103, Germany

RECRUITING

Universitätsklinikum Halle

Halle, Saxony-Anhalt, 06120, Germany

RECRUITING

Universitätsklinikum Schleswig-Holstein Campus Kiel

Kiel, Schleswig-Holstein, 24105, Germany

RECRUITING

Universitätsklinikum Schleswig-Holstein Campus Lübeck

Lübeck, Schleswig-Holstein, 23538, Germany

RECRUITING

Universitätsklinikum Jena

Jena, Thuringia, 07747, Germany

RECRUITING

Evangelisches Klinikum Bethel

Bielefeld, 33611, Germany

RECRUITING

Universitätsklinikum Hamburg Eppendorf

Hamburg, 20246, Germany

RECRUITING

Related Publications (1)

  • Hagel S, Brillinger N, Decker S, Deja M, Ertmer C, Fiedler S, Franken P, Heim M, Weigand MA, Zarbock A, Pletz MW; SepNet Critical Care Trials Group. Effect of acyclovir therapy on the outcome of mechanically ventilated patients with lower respiratory tract infection and detection of herpes simplex virus in bronchoalveolar lavage: protocol for a multicentre, randomised controlled trial (HerpMV). BMJ Open. 2024 Apr 25;14(4):e082512. doi: 10.1136/bmjopen-2023-082512.

Related Links

MeSH Terms

Conditions

Pneumonia, ViralPneumonia, Ventilator-AssociatedCommunity-Acquired PneumoniaHerpes SimplexHealthcare-Associated PneumoniaPneumonia

Interventions

Acyclovir

Condition Hierarchy (Ancestors)

Respiratory Tract InfectionsInfectionsVirus DiseasesLung DiseasesRespiratory Tract DiseasesCross InfectionIatrogenic DiseaseDisease AttributesPathologic ProcessesPathological Conditions, Signs and SymptomsCommunity-Acquired InfectionsHerpesviridae InfectionsDNA Virus InfectionsSkin Diseases, ViralSkin Diseases, InfectiousSkin DiseasesSkin and Connective Tissue Diseases

Intervention Hierarchy (Ancestors)

GuanineHypoxanthinesPurinonesPurinesHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-RingHeterocyclic Compounds

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

November 1, 2023

First Posted

November 18, 2023

Study Start

February 20, 2024

Primary Completion (Estimated)

July 1, 2026

Study Completion (Estimated)

December 1, 2026

Last Updated

November 21, 2025

Record last verified: 2025-11

Data Sharing

IPD Sharing
Will share

Results will be published in a journal indexed in MEDLINE and CTIS; there are no publication restrictions. After publication, deidentified, individual participant data that underlie this trial, along with a data dictionary describing variables in the dataset, will be made available to researchers whose proposed purpose of use is approved by the Trial Management Team.

Shared Documents
STUDY PROTOCOL, SAP, ICF, CSR, ANALYTIC CODE
Time Frame
After publication

Locations