Azithromycin to Prevent Wheezing Following Severe RSV Bronchiolitis-II
试验速览
- 阶段
- 2 期
- 状态
- 已完成
- 入组人数
- 200
- 试验地点
- 1
- 主要终点
- Number of Participants Who Experienced the Occurrence of a Third Episode of Post-RSV Wheezing (Recurrent Wheeze)
研究概览
简要总结
The main objective of the APW-RSV II clinical trial is to evaluate if the addition of azithromycin to routine bronchiolitis care, among infants hospitalized with RSV bronchiolitis, reduces the occurrence of recurrent wheeze during the preschool years.
详细描述
The APW-RSV II clinical trial is a double blind, placebo-controlled, parallel-group, randomized trial, including otherwise healthy 188 participants, ages 1-18 months, who are hospitalized due to RSV bronchiolitis. The study includes active treatment phase with azithromycin or placebo for 2 weeks, and an observational phase for up to 48 months.
The main objective of the APW-RSV II clinical trial is to evaluate if the addition of azithromycin to routine bronchiolitis care, among infants hospitalized with RSV bronchiolitis, reduces the occurrence of recurrent wheeze (RW) during the preschool years.
Study participants will be enrolled during 3 consecutive RSV seasons beginning in Fall 2016. Study participants will be randomized to receive PO azithromycin 10 mg/kg/day for 7 days followed by 5mg/kg/day for additional 7 days, or matched placebo. The primary clinical outcome is the time to the occurrence of a third episode of wheezing. The duration of follow up is 18-48 months, which is determined based on the year in which the participants is recruited: first year recruits will be followed for up to 48 months, while the 3rd year recruits will be followed for at least 18 months.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
入排标准
- 年龄范围
- 1 Month 至 18 Months（Child）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Age: 1-18 months.
- •Hospitalization for the first episode of RSV bronchiolitis.
- •Confirmed RSV infection by positive nasal swab results (PCR assay and/or direct antigen detection).
- •At least two of the following symptoms/signs of bronchiolitis: respiratory rate greater than 40 breaths/minute; cough; wheezing; audible rales, crackles, and/or rhonchi; paradoxical chest movements (retractions)
- •Duration of respiratory symptoms from onset of symptoms of the current illness to admission is 120 hours (5 days) or less.
- •Randomization can be performed within 168 hours (7 days) from onset of symptoms.
- •Willingness to provide informed consent by the child's parent or guardian.
排除标准
- •Prematurity (gestational age < 36 weeks).
- •Presence or history of other significant disease (CNS, lung, cardiac, renal, GI, hepatic disease, hematologic, endocrine or immune disease). Children with atopic dermatitis and/or food allergy will not be excluded from the study.
- •Clinically significant gastroesophageal reflux currently treated with a daily anti-reflux medication (anti- H2 or PPI).
- •The child has significant developmental delay/failure to thrive, defined as weight < 3% for age and gender.
- •History of previous (before the current episode) wheeze or previous (before the current episode) treatment with albuterol.
- •History of previous treatment with corticosteroid (systemic or inhaled) for respiratory issues.
- •Treatment (past or present) with montelukast.
- •Treatment with any macrolide antibiotic (azithromycin, clarithromycin or erythromycin) over the past 4 weeks or current treatment with any macrolide antibiotic. Current or prior treatment with non-macrolide antibiotic is not an exclusion criterion.
- •Chronic treatment with any daily medication other than vitamins or nutritional supplements. Although routine vitamin D supplement (400 IU per day) is not an exclusion criterion, high dose vitamin D supplements are not allowed.
- •Participation in another clinical trial.
- •Participant requires invasive mechanical ventilation due to RSV bronchiolitis.
- •Evidence that the family may be unreliable or non-adherent, or has definitive plans to move from the clinical center area before trial completion.
- •Contraindication of use of azithromycin or any other macrolide antibiotics such as history of allergic reaction (or other adverse reaction) to these antibiotics.
- •Diagnosis of asthma.
- •Treatment with other medication that may cause QT interval prolongation.
研究组 & 干预措施
Oral azithromycin
Oral Azithromycin
干预措施: Oral azithromycin (Drug)
Placebo
Oral Placebo
干预措施: Placebo (Drug)
结局指标
主要结局
Number of Participants Who Experienced the Occurrence of a Third Episode of Post-RSV Wheezing (Recurrent Wheeze)
时间窗: Follow up duration of 18-48 months
Episodes of wheezing were captured at each of the study telephone interviews and clinic visits using the question, "Has your child's chest sounded wheezy or whistling (with and without a cold)?". A new wheezing episode was defined if at least 7 days without wheezing had been reported since the previous episode.
次要结局
- Number of Participants Who Had Physician Asthma Diagnosis(Follow up duration of 18-48 months)
- Annualized Number of Days With Respiratory Symptoms (Wheezing, Cough, or Shortness of Breath)(Follow up duration of 18-48 months)
- Annualized Number of Days With Albuterol Use(Follow up duration of 18-48 months)
- Annualized Number of Oral Corticosteroid Courses(Follow up duration of 18-48 months)
- Annualized Number of Antibiotic Courses(Follow up duration of 18-48 months)
- Number of Participants Who Experienced Serious Adverse Events(Follow up duration of 18-48 months)
研究者
Avraham Beigelman
Associate Professor of Pediatrics
Washington University School of Medicine