NCT06177197

Brief Summary

The objective of this study is to show that the use of electrodialyzed seawater reduces the duration (in days) of symptoms in acute infant bronchiolitis compared with the use of saline solution in infants aged 1 month to less than one year. B-CLASS study is a multicenter, prospective, controlled, randomized, double label blind.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
458

participants targeted

Target at P75+ for not_applicable

Timeline
31mo left

Started Jan 2025

Longer than P75 for not_applicable

Geographic Reach
1 country

8 active sites

Status
recruiting

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

Study Progress34%
Jan 2025Dec 2028

First Submitted

Initial submission to the registry

December 11, 2023

Completed
9 days until next milestone

First Posted

Study publicly available on registry

December 20, 2023

Completed
1.1 years until next milestone

Study Start

First participant enrolled

January 10, 2025

Completed
2.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 1, 2027

Expected
1.1 years until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2028

Last Updated

December 17, 2025

Status Verified

December 1, 2025

Enrollment Period

2.8 years

First QC Date

December 11, 2023

Last Update Submit

December 16, 2025

Conditions

Keywords

InfantNasopharyngeal decongestionBronchiolitis

Outcome Measures

Primary Outcomes (1)

  • Duration of resolution of illness (ROI)

    It is the time it takes for the child to return to baseline according to the person administering the care. ROI is defined by ordinal scale from 0 to 4 on which parents globally rate symptoms according to the following categories: (1) worsened, (2) same, (3) improved, (4) resolved. The duration of ROI is the time it takes to obtain a score of 4.

    At day 1, day 2, day 3, day 4, day 5, day 6, day 7, day 8, day 9, day 10

Secondary Outcomes (14)

  • An again medical consultation

    At day 1, day 2, day 3, day 4, day 5, day 6, day 7, day 8, day 9, day 10

  • Hospitalization

    At day 1, day 2, day 3, day 4, day 5, day 6, day 7, day 8, day 9, day 10

  • Time to improvement of cough in days

    At day 1, day 2, day 3, day 4, day 5, day 6, day 7, day 8, day 9, day 10

  • Time to improvement of nasal congestion in days

    At day 1, day 2, day 3, day 4, day 5, day 6, day 7, day 8, day 9, day 10

  • Length with nasopharyngeal decongestion in days

    At day 1, day 2, day 3, day 4, day 5, day 6, day 7, day 8, day 9, day 10

  • +9 more secondary outcomes

Study Arms (2)

Physiomer

EXPERIMENTAL

It is a sterile, isotonic seawater-based solution, with a concentration equivalent to 9 g/L sodium chloride. This solution is packaged in 5 mL single-dose units. It is a Class IIa medical device manufactured by Laboratoire de la mer, and is CE marked. Electrodialyzed seawater solution is administered via the nasal passage, in line with current recommendations. Dosage varies according to age, and the pressure exerted on the unit dose enables the product to be administered into the nostril.

Device: Physiomer

Saline solution

ACTIVE COMPARATOR

It is a sterile, isotonic seawater-based solution, with a concentration egal to 0,9 g/L sodium chloride. This solution is packaged in 5 mL single-dose units. It is a Class IIa medical device manufactured by GiLBERT, and is CE marked. The saline solution is administered via the nasal passage, in line with current recommendations. Dosage varies according to age, and the pressure exerted on the unit dose enables the product to be administered into the nostril.

Device: Saline solution

Interventions

Infants randomized to the control group will be given a saline solution by their parents for up to 10 days. Dosage is adapted according to the child's age and discomfort: * Infant \< 6 months: half a dose to a single dose administered per nostril 8 times a day. * Infant \> 6 months: one single dose administered per nostril 6 times a day.

Saline solution
PhysiomerDEVICE

Infants randomized to the experimental group will be given an electrolyzed seawater solution by their parents for up to 10 days. Dosage is adapted according to the child's age and discomfort: * Infant \< 6 months: half a dose to a single dose administered per nostril 8 times a day. * Infant \> 6 months: one single dose administered per nostril 6 times a day.

Also known as: Electrodilysed seawater solution
Physiomer

Eligibility Criteria

Age1 Month - 1 Year
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17)

You may qualify if:

  • Infants aged more than 1 month and less than 1 year
  • First episode of acute bronchiolitis
  • Emergency consultation
  • Existence of nasal obstruction
  • Onset of symptoms \&amp;lt; 48 hours before emergency consultation
  • Outpatient care after emergency consultation
  • Mild to moderate bronchiolitis according to the \&amp;#34;Haute Autorité de Santé 2019\&amp;#34; criteria:
  • Respiratory rate over 1 minute \&amp;gt;30/minutes and \&amp;lt;60/minute ; Heart rate \&amp;gt;80/minutes and \&amp;lt;180/minutes; Absence of respiratory pauses; Absence of superficial breathing; Absence of signs of intense respiratory struggle: involvement of the lower intercostal accessory muscles, sternocleidomastoid muscles, thoracoabdominal swinging, or flapping of the wings of the nose; Feeding \&amp;gt;50% of the usual quantity over 3 consecutive doses; SpO2 \&amp;gt; 92% during sleep ; \&amp;gt;94% when awake; \&amp;gt;2 months corrected age
  • Parental consent
  • Affiliate to a social security system

You may not qualify if:

  • Hospitalization (excluding short stay unit) after emergency consultation
  • Oxygen therapy
  • History of prematurity (birth \&lt;36 weeks of amenorrhea)
  • History of invasive ventilation in the neonatal period
  • History of chronic pulmonary or cardiac pathology
  • History of immune deficiency
  • History of polyhandicap or neuromuscular pathology
  • History of malformative Ear Nose and Throat pathology affecting the upper airways
  • Impossibility of ensuring the follow-up made necessary by participation in this study

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (8)

Brest, University Hospital

Brest, 29609, France

RECRUITING

Le Mans hospital

Le Mans, 72037, France

RECRUITING

Lille, University hospital

Lille, 59000, France

NOT YET RECRUITING

Saint-Joseph hospital

Marseille, 13008, France

RECRUITING

Morlaix hospital

Morlaix, 29600, France

RECRUITING

Nantes, University Hospital

Nantes, 44400, France

RECRUITING

Rennes, University hospital

Rennes, 35033, France

RECRUITING

Tours, University hospital

Tours, 37000, France

RECRUITING

MeSH Terms

Conditions

Bronchiolitis

Interventions

Abortion, Induced

Condition Hierarchy (Ancestors)

BronchitisRespiratory Tract InfectionsInfectionsBronchial DiseasesRespiratory Tract DiseasesLung Diseases, ObstructiveLung Diseases

Intervention Hierarchy (Ancestors)

Obstetric Surgical ProceduresSurgical Procedures, Operative

Central Study Contacts

Léa GAITAN, MD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Masking Details
neither the patient, the parents nor the investigating physician are aware of the product allocated.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: multicenter, prospective, controlled, randomized in two parallel arms, double label blind.
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

December 11, 2023

First Posted

December 20, 2023

Study Start

January 10, 2025

Primary Completion (Estimated)

November 1, 2027

Study Completion (Estimated)

December 1, 2028

Last Updated

December 17, 2025

Record last verified: 2025-12

Data Sharing

IPD Sharing
Will share

All collected data that underlie results in a publication

Shared Documents
STUDY PROTOCOL
Time Frame
Data will be available beginning three years and ending fifteen years following the final study report completion
Access Criteria
Data access requests will be reviewed by the internal committee of Brest UH. Requestors will be required to sign and complete a data access agreement.

Locations