Steroid Therapy in Acute Bronchiolitis A New Old Line of Therapy.

NCT ID: NCT03436225

Last Updated: 2019-01-09

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

PHASE1

Total Enrollment

80 participants

Study Classification

INTERVENTIONAL

Study Start Date

2019-02-28

Study Completion Date

2019-03-31

Brief Summary

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The aim of the present study is to evaluate the efficacy of steroid therapy and hospital stay in patients with acute bronchiolitis at assiut university children hospital.

Detailed Description

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Bronchiolitis is an acute lower respiratory tract infection in early childhood.A subcommittee of the American Academy of Pediatrics (AAP) together with the European Respiratory Society (ERS) underlined that is a clinical diagnosis, recognized as "a constellation of clinical symptoms and signs including a viral upper respiratory prodrome followed by increased respiratory effort and wheezing in children less than 2 years of age".

Bronchiolitis is the common reason for hospitalization of children in many countries, challenging both economy, area and staffing in pediatric departments. A substantial proportion of children will experience at least one episode with bronchiolitis, and as much as 2-3% of all children will be hospitalized with bronchiolitis during their first year of life. Bronchiolitis is the most common medical reason for admission of children to intensive care units (ICU) particularly those with risk Factors will have a severe course of bronchiolitis, providing challenges regarding ventilation, fluid balance and general support This may be a particular challenge for ICUs without a specialized pediatric section.

Many respiratory viruses have been associated with acute viral bronchiolitis although Respiratory Syncytial Virus (RSV) remains the most common identified virus causing bronchiolitis, occurring in epidemics during winter months.The infection starts in the upper respiratory tract, spreading to the lower airways within few days.The inflammation in the bronchioles is characterized by a peri-bronchial infiltration of white blood cell types, mostly mono nuclear cells, and oedema of the submucosa and adventitia. Damage may occur by a direct viral injury to the respiratory airway epithelium, or indirectly by activating immune responses. Oedema, mucus secretion, and damage of airway epithelium with necrosis may cause partial or total airflow obstruction, distal air trapping, atelectasis and a ventilation perfusion mismatch leading to hypoxemia and increased work of breathing. Smooth-muscle constriction seems to play a minor role in the pathologic process of bronchiolitis.

Risk factors for bronchiolitis are male gender, a history of prematurity, young age, being born in relation to the RSV season, pre-existing disease such as broncho pulmonary- dysplasia , underlying chronic lung disease , neuromuscular disease, congenital heart- disease , exposure to environmental tobacco smoke , high parity, young maternal age, short duration/no breast feeding , maternal asthma and poor socioeconomic factors.

Bronchiolitis often starts with rhinorrhoea and fever, thereafter gradually increasing with signs of a lower respiratory tract infection including tachypnoea, wheezing and cough. Very young children, particularly those with a history of prematurity, may appear with apnea as their major symptom.Feeding problems are common.

On clinical examination, the major finding in the youngest children may be fine inspiratory crackles on auscultation, whereas high-pitched expiratory wheeze may be prominent in older children. By observation, the infants may have increased respiratory rate, chest movements, prolonged expiration, recessions, use of accessory muscles, cyanosis and decreased general condition.

No routine laboratory or radio graphic diagnostic tests for bronchiolitis except for pulse oxymetry , have been shown to have a substantial impact on the clinical course of bron- chiolitis , and recent guidelines and evidence-based reviews recommend that no diagnostic tests are used routinely.

The present study describes the efficacy of steroid therapy in patients with acute bronchiolitis. Theoretically, corticosteroid, an anti-inflammatory agent, should be helpful in the treatment of bronchiolitis because airway inflammation and edema are the main pathophysiologies. Recent evidence has shown elevation of interleukins and other inflammatory mediators in the respiratory tracts of children with acute bronchiolitis. Eosinophil cationic protein, implicated in the pathogenesis of asthma, was found to have a significant role in RSV bronchiolitis. Most of these mediators could be found during the period of virus replication.The clinical effect of dexamethasone, with a long half -life of 36-72 hr, may peak after 3-4 hr of treatment. Corticosteroids widely used in different routes in the treatment of acute bronchiolitis:

Dexamethasone injection used in hospitalized children with acute bronchiolitis showed significantly reduction in the mean respiratory distress duration, mean duration of oxygen therapy and the mean length of hospital stay.

Oral dexamethasone used in pediatric out patients with acute bronchiolitis produced demonstrable clinical improvement in the initial 4 hr of treatment and reduced the hospitalization rate.

Corticosteroid inhalation therapy used in RSV- bronchiolitis showed evidence of prolonged positive effects in reduction of the incidence of subsequent respiratory symptoms in the near future. However, the best and sufficient length of the treatment period, as well as the dose of the inhaled steroid, need to be determined..

Fluticasone propionate, a potent corticosteroid, has been demonstrated in vitro to inhibit virus-induced chemokine production by airway cells in patients infected with Respiratory Syncytial Virus. However, the inhibition was found to take at least 48 hr to reach its full effect.

Conditions

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Bronchiolitis; Respiratory Syncytial Virus

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Group one

Group one will receive dexamethasone orally (0.15mg /kg / dose) twice daily for 3 to 5 days.

Group Type OTHER

Dexamethasone orally.

Intervention Type DRUG

Administered orally (0.15mg /kg / dose) twice daily for 3 to 5 days.

Group two

Group two will receive dexamethasone parenteral (0.15mg /kg /dose) twice daily for 3 to 5 days.

Group Type OTHER

Dexamethasone parenteral.

Intervention Type DRUG

Administered parenteral (0.15mg /kg / dose) twice daily for 3 to 5 days.

Group three

Group three will receive inhaled nebulized budesonide (1 mg/2ml) twice daily for 3 to 5 days.

Group Type OTHER

Inhaled nebulized Budesonide.

Intervention Type DRUG

Administered for inhalation (1 mg/ 2ml) twice daily for 3 to 5 days.

Group four

Group four will receive symptomatic treatment in form of inhaled nebulized salbutamol(0.15mg/kg/ dose) daily every 6-8 hours.

Group Type OTHER

Inhaled nebulized salbutamol.

Intervention Type DRUG

Administered for inhalation (0.15mg /kg / dose) daily every 6-8hrs

Interventions

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Dexamethasone orally.

Administered orally (0.15mg /kg / dose) twice daily for 3 to 5 days.

Intervention Type DRUG

Dexamethasone parenteral.

Administered parenteral (0.15mg /kg / dose) twice daily for 3 to 5 days.

Intervention Type DRUG

Inhaled nebulized Budesonide.

Administered for inhalation (1 mg/ 2ml) twice daily for 3 to 5 days.

Intervention Type DRUG

Inhaled nebulized salbutamol.

Administered for inhalation (0.15mg /kg / dose) daily every 6-8hrs

Intervention Type DRUG

Other Intervention Names

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Apidone syrup. Phenadone syrup. Fortecortin 8 mg /2 ml ampoule i.v /i.m injection . Pulmicorte respules1 mg /2 ml. Farcoline respirator 0,5% solution.

Eligibility Criteria

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Inclusion Criteria

1. Infants and young children aged from 3 months to 2 years with acute bronchiolitis.
2. Infants aged \<12 months with respiratory rate over 60 breaths/min, childrens aged \>12months with respiratory rate over 50 breaths/min.
3. Patients with an O2- saturation, breathing room air, under 95%.
4. Patients with apathy and/or refusal to eat.
5. Patients with normal white blood cell count for age.
6. Full term babies without chronic disease.

Exclusion Criteria

1. Infants aged \< 3 months, children aged \>2 years
2. known or suspected asthma (by observing the good response to first dose of salbutamol nebulization especially among those with personal history of atopy).
3. Proven or suspected acute bacterial infection.
4. Presence of symptoms more than 7 days.
5. Previous treatment with corticosteroid by any route within 2 weeks.
6. Having a contra- indication to corticosteroid.
7. Severe cases requiring initial admission to intensive care unit with endotracheal intubation (in order to reduce confounding factors such as nosocomial infection or complication due to mechanical ventilation).
8. A previous history of intubation.
9. Premature babies (due to possible respiratory problems associated with prematurity).
10. Children with chronic cardiopulmonary diseases (Bronchopulmonary- dysplasia , Congenital Heart Disease and Cystic fibrosis)
11. Children with immunodeficiencies .
12. Children with neuromuscular disease.
Minimum Eligible Age

3 Months

Maximum Eligible Age

2 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Assiut University

OTHER

Sponsor Role lead

Responsible Party

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Marina shohdy dous

Principal Investigator.

Responsibility Role PRINCIPAL_INVESTIGATOR

References

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Other Identifiers

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Steroid in bronchiolitis.

Identifier Type: -

Identifier Source: org_study_id

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