Severe acute (viral) wheeze and severe acute asthma MedDRA version: 19.0 Level: LLT Classification code 10047921 Term: Wheeze System Organ Class: 10038738 - Respiratory, thoracic and mediastinal disorders MedDRA version: 19.0 Level: PT Classification code 10041961 Term: Status asthmaticus System Organ Class: 10038738 - Respiratory, thoracic and mediastinal disorders
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: -Between 2-18 years of age at moment of inclusion -Admitted to PICU for Severe Acute Asthma or Severe acute (viral) wheeze -Requiring administration of IV salbutamol Are the trial subjects under 18? yes Number of subjects for this age range: 52 F.1.2 Adults (18-64 years) no F.1.2.1 Number of subjects for this age range F.1.3 Elderly (>=65 years) no F.1.3.1 Number of subjects for this age range
Exclusion criteria
Exclusion criteria: -Patient is outside of specified age range -Patient has already received a -loading dose- of IV salbutamol in the general hospital -Lower airway infection with consolidation on a chest X ray -Patient has Down’s Syndrome -Patient has a congenital/acquired heart defect that interferes with normal asthma treatment -Patient has a primary/secondary immunodeficiency -Patient has a pre-existing chronic pulmonary condition, known to mimic asthma: Cystic fibrosis, Bronchopulmonary dysplasia, Bronchiolitis obliterans
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Secondary Objective: To assess the following pharmacodynamics parameters of a loading dose of intravenous salbutamol in children admitted to a PICU for severe acute wheeze or severe acute asthma. -Maximum rate and duration of infusion of IV salbutamol -Total (cumulative) dose of IV salbutamol -Length of stay on PICU -Need for other medication (e.g. sodium bicarbonate, theophyllin, sevoflurane) -Need for non-invasive/invasive mechanical ventilation (+ duration) -Frequency of side effects (Tachycardia, Arrhythmia, Hypotension, Hypokalaemia, Hyperglycaemia, Lactic acidosis) -Distribution of ADBR2 receptor polymorphisms ;Main Objective: To assess the efficacy of a loading dose of intravenous salbutamol in children admitted to a PICU for severe acute wheeze or severe acute asthma. Efficacy is measured by the reduction in asthma score (Qureshi) at 1 hour after administration of the loading dose, compared to placebo.;Primary end point(s): The primary outcome variable is (reduction of) asthma score (Qureshi) 1 hour after administration of loading dose in the intervention group compared to the placebo group. Based on expert opinion, we consider a reduction of 2 points to represent a clinically relevant improvement. ;Timepoint(s) of evaluation of this end point: 1 hour after administration of loading dose of IV salbutamol | — |
Secondary
| Measure | Time frame |
|---|---|
| Secondary end point(s): • The (reduction of) asthma score (Qureshi) 6 hours after administration of loading dose in the intervention group compared to the placebo group. • Cumulative dose of IV salbutamol • Maximum infusion rate of IV salbutamol in mcg/kg/min • Total duration of IV salbutamol treatment in hours • Occurrence/frequency of side effects (categorical) (Tachycardia, Arrhythmia, Hypotension, Hypokalaemia, Hyperglycaemia, Lactic acidosis) • Length of Stay on PICU in days • Use of co-medication + dosage + timing (e.g. sodium bicarbonate, theophylline, sevoflurane) • Use of prednisone + time/method of first administration • Use of/duration of non-invasive/invasive mechanical ventilation in days • Distribution of ADRB2-receptor polymorphisms (SNPs for Arginine and Glycine on chromosomes 16 and 27) compared to normal population (non-SAA) ;Timepoint(s) of evaluation of this end point: Asthma score will be measured at baseline and the following timepoints after administration of IV salbutamol loading dose: 30 minutes, 1 hour, 3 hours, 6 hours, 12 hours, 24 hours and >24 hours. The remaining secondary end points have no specific time points. | — |
Countries
Netherlands
Contacts
Erasmus MC - Sophia Children's Hospital