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NCT Number: NCT05028153

Azithromycin Treatment of Hospitalized Children With Asthmatic Symptoms

The purpose of this double-blind, randomized, controlled clinical trial is to investigate the effect of a three-day azithromycin treatment versus placebo treatment in children aged 1-5 years who are hospitalized due to asthma-like symptoms.

Recruiting

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Key information

Age range

12 month–71 month

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 2

Primary location

About this study

The children who are included must be have a known history with one or more previous episodes of asthmatic symptoms and is currently / have received treatment with SABA as monotherapy or SABA in combination with ICS and possibly LTRA. The primary purpose during hospitalization is to replicate the results of our previous study, where it was shown that azithromycin treatment significantly shortened the duration of the asthmatic episode. In this study, hospitalized children who provide a more diverse group than the COPSAC2010 cohort will be included. In addition, the study aims to focus on examining the individual response to treatment. The expectation is that in the future the study will be able to contribute to personal treatment based on the child's respiratory microbiome and / or immunological profile so that only the children who will benefit from the azithromycin treatment will receive it. The expectation is also that the study will contribute to an increased understanding of the influence of bacteria on asthma-like episodes in preschool children, and thus will lead to an evidence-based better treatment of these.

The study hypothesis is:

● that antibiotic treatment with azithromycin compared to placebo in the patient group aged 1-5 years, known with previous episode (s) with asthma-like symptoms and is currently / have received treatment with SABA as monotherapy, or SABA in combination with ICS and possibly LTRA, will lead to a significant reduction in the symptom burden and duration of the asthmatic episode in days.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Previous episode(s) with asthma-like symptoms and / medical treatment with SABA as mono-therapy or SABA in combination with ICS and possibly LTRA.
  • The parent/guardian(s) agrees to admit the child and is willing to follow the procedure of the trial.
  • The child is between 12-71 months old.
  • Fluent Danish skills with parents / guardians.

Exclusion criteria

  • Known allergy to macrolide antibiotics.
  • Known impaired liver function.
  • Known renal impairment.
  • Known with neurological or psychiatric diseases.
  • Known with congenital or documented acquired QT interval.
  • Known for clinically relevant bradycardia, cardiac arrhythmia or severe heart failure.
  • Clinical signs of pneumonia (Objective findings, including severe tachypnoea: respiratory rate (RF)> 50 and / or Fever: temperature> 39 °C and / or C-reactive protein (CRP)> 50).

Treatment and study plan

Azithromycin Oral Liquid Product

Drug

10 mg/kg for 3 consecutive days

Placebo mixture

Other

Placebo mixture containing no active substance

Primary outcomes

  1. Duration in days of the asthma-like episode from the start of randomization.

    Time frame: 1-30 days

    Number of days based on a diary.

Secondary outcomes

  1. Change in symptom score.

    Time frame: From day 1 after randomization to completion of each randomized asthmatic episode aged 1-5 years.

    Using a previously validated symptom scoring model based on a diary. The score range is from 0 (no symptoms) and up to 3 (depending on presence of one or more of the followings symptoms: Cough, breathlessness and wheezing).

  2. Effect modification in relation to the child's respiratory microbiota profile.

    Time frame: Sample time, day 1

    Airway microbiota, pathogenic bacteria and vira as measured by 16S-rRNA and whole genome sequencing.

  3. Effect modification in relation to the child's respiratory immunological profile.

    Time frame: Sample time, day 1

    Evaluation of immune mediator profiles (cytokine and chemokine levels) in the upper airway epithelial lining fluid.

  4. The length of hospitalization (days)

    Time frame: 1-30 days

    Determined by participants medical record.

  5. Need for SABA during the asthma-like episode

    Time frame: 1-30 days

    Number of days based on a diary.

  6. Need for oral corticosteroids (OCS) during the asthma-like episode.

    Time frame: 1-30 days

    Number of days based on a diary.

  7. Stratification of the above analyzes.

    Time frame: Sample time, day 1

    On the basis of the presence or absence of bacteria/microbiota in the respiratory tract, based on outcomes 3, 4 and 5.

  8. Number of days away from daycare offers.

    Time frame: 1-30 days

    Number of days based on a diary.

  9. Health economic gain based on treatment costs and lost earnings. lost earnings for parent / guardian (s)

    Time frame: 1-30 days

    The number of days home from daycare causing parent absenteeism due to illness based on this diary registration.

  10. Gut microbiome profile

    Time frame: 1-30 days

    Occurrence, diversity and abundance of gut microbiota using 16S rRNA sequencing and whole genome sequencing.

  11. Resistance profiles

    Time frame: 1-30 days

    Occurrence, diversity and abundance of antibiotic resistance genes as assessed by metagenome sequencing.

  12. Adverse Event (AE) registration

    Time frame: 1-30 days

    Number of events and type of event based on a diary.

Study contacts

Contact information is provided by the study sponsor or research team.

Klaus Bønnelykke, MD, PhD

CONTACT

[email protected]

+4538677360

Ulrik Ralfkiaer, MSc, PhD

CONTACT

[email protected]

+4538674164

Sponsors and collaborators

Lead sponsor

Copenhagen Studies on Asthma in Childhood

Other

Registry information

Official study title

Azithromycin Treatment of Hospitalized Children With Asthmatic Symptoms: A Double-blinded, Randomized, Controlled Study

Acronym: COPSACazt

Important dates

Study start
2022
Primary completion
2026
Study completion
2032
First posted
Aug 31, 2021
Registry last updated
Apr 13, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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