NCT04378231

Brief Summary

Chronic wet cough is one of the most common symptoms of respiratory diseases in children. Protracted bacterial bronchitis (protracted bacterial bronchitis, PBB) is the most common cause of chronic wet cough in children. Potassium amoxicillin clavulanate is the recommended drug for the treatment of PBB, but there is not enough evidence to date on the dose and course of treatment. investigate the efficacy of different doses of amoxicillin clavulanate sodium in the treatment of chronic bacterial bronchitis in children. The methods of this study are summarized as following:

  1. 1.Screening cases of chronic wet cough in children aged 2 to 6 years old who came to our hospital for treatment. Those diagnosed as PBB were included in this study, after obtaining the written informed consent from their parents or guardians.
  2. 2.The enrolled patients were randomly divided into high-dose (90mg/kg/d) and standard dose (60mg/kg/d) amoxicillin clavulanate potassium treatment group.
  3. 3.Medical history data of enrolled patients and daily cough score data were collected.
  4. 4.Assess the cough remission rate within two weeks and recurrence rate within 6 months in both groups.

Trial Health

35
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
100

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started May 2020

Typical duration for not_applicable

Status
unknown

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

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

April 23, 2020

Completed
8 days until next milestone

Study Start

First participant enrolled

May 1, 2020

Completed
6 days until next milestone

First Posted

Study publicly available on registry

May 7, 2020

Completed
1.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2021

Completed
7 months until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2022

Completed
Last Updated

May 7, 2020

Status Verified

May 1, 2020

Enrollment Period

1.6 years

First QC Date

April 23, 2020

Last Update Submit

May 5, 2020

Conditions

Outcome Measures

Primary Outcomes (1)

  • cough remission rate

    defined as a more than 75% reduction in VCD cough score at the end of the study compared to the baseline score at enrollment, or cough cessation for more than 3 days during the study period.

    within two weeks of inclusion

Secondary Outcomes (2)

  • the absolute change in VCD score

    within two weeks of inclusion

  • the incidence of adverse events

    through their followup completion, an average of half year

Study Arms (2)

high-dose group

EXPERIMENTAL

patients take dry suspension of amoxicillin clavulanate potassium 45 mg/kg/ time (amoxicillin) orally twice a day, total daily dose not exceeding 2 g, and the course of treatment is two weeks.

Drug: Amoxicillin-Clavulanate 200 Mg-28.5 Mg Oral dry suspension

standard dose group

EXPERIMENTAL

patients take dry suspension of amoxicillin clavulanate potassium 30 mg/kg/ time (amoxicillin) orally twice a day, total daily dose not exceeding 2 g, and the course of treatment is two weeks.

Drug: Amoxicillin-Clavulanate 200 Mg-28.5 Mg Oral dry suspension

Interventions

dry suspension of amoxicillin clavulanate potassium

Also known as: Amoxicillin and Clavulanate Potassium for Suspension
high-dose groupstandard dose group

Eligibility Criteria

Age2 Years - 6 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17)

You may qualify if:

  • Children diagnosed with first-onset PBB
  • Subjects and their guardians agree to participate in the study and sign an informed consent

You may not qualify if:

  • Seriously delayed development of the nervous system;
  • With severe underlying diseases: such as severe neuromuscular diseases, immunodeficiency, malnutrition, heart diseases, congenital respiratory system malformation, and other diseases of the heart, brain, liver, kidney and blood system;
  • Other diseases that can cause chronic wet cough, including chronic rhinitis, sinusitis, interstitial lung disease, and clinical suspicion of bronchiectasis;
  • With poor compliance and expected difficulty in completing the study;
  • Other conditions considered inappropriate by the researcher.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Interventions

Amoxicillin-Potassium Clavulanate CombinationAmoxicillinClavulanic AcidSuspensions

Intervention Hierarchy (Ancestors)

Clavulanic Acidsbeta-LactamsLactamsAmidesOrganic ChemicalsAmpicillinPenicillin GPenicillinsSulfur CompoundsHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-RingHeterocyclic CompoundsDrug CombinationsPharmaceutical PreparationsColloidsComplex MixturesDosage Forms

Study Officials

  • Hai-lin Zhang, MD

    Second Affiliated Hospital of Wenzhou Medical Universitiy

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Xiao-guang Hu, MD., PhD.

CONTACT

Hai-lin Zhang, MD., PhD.

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

April 23, 2020

First Posted

May 7, 2020

Study Start

May 1, 2020

Primary Completion

December 1, 2021

Study Completion

July 1, 2022

Last Updated

May 7, 2020

Record last verified: 2020-05

Data Sharing

IPD Sharing
Will not share