Clinical trial Recruiting at 8 sites Phase 4 Interventional Ages 18 and up

Stopping antibiotics for viral respiratory infections

Official title: Antibiotic Therapy in Viral Airway Infections: An Open Labeled Randomized Controlled Pragmatic Trial to Evaluate the Efficacy and Safety of Discontinuing Antibiotic Therapy in Adult Patients With Respiratory Viruses

Run by University Hospital, Akershus · NCT05045612 · Data updated 2026-11-12

This study is testing if hospitalized adults with viral respiratory infections can safely stop taking antibiotics without affecting their recovery compared to those who keep taking them.

More Influenza trials

Quick facts

PhasePhase 4
Study typeInterventional
Ages18 Years and up
SexAll
Enrollment380 (estimated)
SponsorUniversity Hospital, Akershus
Academic / other
Drugs / interventionschemotherapy
Locations12 sites (Bergen and 11 other locations)
StatusRecruiting
StartedJanuary 13, 2022
Main results expectedMay 2027
Study endsNovember 2029
Registry record updatedAugust 12, 2025
Trial IDNCT05045612 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are hospitalized adults aged 18 and older with moderately severe respiratory viral infections who are currently on antibiotic therapy.

Probably not a fit

Patients requiring intensive care or exhibiting severe pneumonia symptoms may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study evaluates the safety and efficacy of discontinuing antibiotic therapy in hospitalized adults with respiratory viral infections. It aims to determine if patients with positive airway samples for viruses can safely stop antibiotics without compromising their recovery compared to those who continue treatment. The primary outcome is the early clinical response at 120 hours post-randomization, while secondary outcomes include mortality rates and duration of hospital stays. The study leverages rapid viral detection methods to guide treatment decisions and reduce unnecessary antibiotic use.

Why it matters

Potential benefit: If successful, this approach could reduce antibiotic overuse and combat antimicrobial resistance while ensuring patient safety.

How similar studies have gone: Other studies have shown promise in reducing antibiotic use for viral infections, but this specific approach is novel in its focus on early discontinuation based on rapid viral testing.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Hospitalized
* Adults 18 year or older
* Moderately severe disease (CRB65 ≤ 2 at time of inclusion)
* Nasopharyngeal swab positive for influenza virus, parainfluenza virus, respiratory syncytial virus (RSV) or human metapneumovirus (hMPV)
* On antibiotic therapy as instituted by the receiving physician from the emergency department
* Signed informed consent must be obtained and documented according to ICH GCP, and national/local regulations.

Exclusion Criteria:

* Requiring ICU admission at screening
* Requiring high-flow oxygen therapy or non-invasive ventilation at screening
* Signs of severe pneumonia (abscesses, massive pleural effusion, a well-defined lobar infiltrate on chest X-ray strongly suggestive of bacterial etiology)
* Not immunocompetent (i.e. on active chemotherapy, corticosteroid therapy equaling ≥ 20 mg prednisolone daily for ≥ 4 weeks, chronic immunosuppression due to solid organ transplant)
* SARS-CoV-2 positive
* Bacteremia
* Urine antigen test positive for legionella
* Any other infection necessitating antibiotic treatment
* Antibiotic use for assumed airway infection within the last 24 hours before admission to hospital
* Time from initiation of antibiotic therapy to screening \>48 hours

Where it's running

  • Drammen Hospital, Vestre Viken Hospital Trust
    Drammen, Norway
    Recruiting
  • Sykehuset Østfold HF
    Grålum, Norway
    Recruiting
  • Sørlandet sykehus HF
    Kristiansand, Norway
    Recruiting
  • Akershus University Hospital
    Lørenskog, Norway
    Recruiting
  • Oslo University Hospital, Ullevål
    Oslo, Norway
    Recruiting
  • Stavanger University Hospital
    Stavanger, Norway
    Recruiting
Show 6 more locations
  • University Hospital of North Norway
    Tromsø, Norway
    Recruiting
  • Sykehuset i Vestfold HF
    Tønsberg, Norway
    Recruiting
  • Haukeland University Hospital
    Bergen, Norway
    Not yet recruiting
  • Bærum Hospital, Vestre Viken Hospital Trust
    Gjettum, Norway
    Not yet recruiting
  • Telemark Hospital Trust
    Skien, Norway
    Not yet recruiting
  • St. Olavs hospital
    Trondheim, Norway
    Not yet recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.