A Multi-Center 52-Week Study to Assess the Safety of an Albuterol Dry-powder Inhaler in Subjects With Asthma
试验速览
- 阶段
- 3 期
- 状态
- 终止
- 入组人数
- 331
- 试验地点
- 1
- 主要终点
- Changes From Screening in the Vital Signs That Are Clinically Significant in the Opinion of the Investigator
研究概览
简要总结
This is a one-year study to look at the safety of a dry powder inhaler with albuterol. After a one-week run in, for the first 3 months subjects will use an inhaler with either albuterol or a dummy drug at regular times four times a day. Then for the last nine months of the study, all subjects will be given the albuterol dry powder inhaler and will use it only when needed to help with breathing problems. Subjects will need to keep a daily diary (both paper and electronic) throughout the study recording any inhaler use and health problems. There will be visits to the study doctor about once a month for a year. This study is intended to show that the albuterol dry powder inhaler works well and is safe for use over a long period of time.
详细描述
The Sponsor terminated this study due to the need for a modification to the Spiromax device utilized in this study; the problem identified has no impact on patient safety. Exposure ranged from 3 to 49 days with the majority of subjects receiving ≤30 days of double-blind treatment.
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
- 12 Years 至 —（Child, Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Documented history of persistent asthma with rescue use of albuterol on average of at least once/ week over the 4-weeks prior to screening.
- •Female subjects who are of childbearing potential (as judged by the investigator) must be currently using and willing to continue to use a medically reliable method of contraception for the entire study duration
- •General good health
- •Capable of understanding the requirements, risks, and benefits of study participation
- •Non-smoker for at least one year prior to the screening visit and a maximum pack-year smoking history of 10 years
- •Other criteria apply
排除标准
- •Pregnancy, nursing, or plans to become pregnant or donate gametes (ova or sperm) for in vitro fertilization during the study period or for 30 days following the subject's last study related visit
- •Participation in any investigational drug trial within 30 days preceding the screening visit
- •A known hypersensitivity to albuterol or any of the excipients in the formulations.
- •History of severe milk protein allergy
- •History of a respiratory infection or disorder (including, but not limited to bronchitis, pneumonia, acute or chronic sinusitis, otitis media, influenza, etc) which is not resolved within 1 week prior to the Screening Visit.
- •Use of any protocol prohibited concomitant medications for asthma or any protocol prohibited concomitant non-asthma medications
- •Inability to tolerate or unwillingness to comply with the protocol requirements.
- •History of life-threatening asthma
- •Any asthma exacerbation within 3 months of the Screening Visit requiring oral or systemic corticosteroids
- •History of life-threatening asthma
- •Other criteria apply
研究组 & 干预措施
Albuterol Spiromax
Albuterol multi-dose dry powder inhaler (Spiromax) at a dose of 720 micrograms per day administered as 2 inhalations of 90 mcg /inhalation four times a day for the 12 week double-blind period. Participants then continue into the 40 week open-label period in which they take albuterol multi-dose dry powder inhaler (Spiromax) inhalations of 90 mcg /inhalation as required (PRN).
干预措施: Albuterol Spiromax (Drug)
Placebo Spiromax
Placebo delivered using a multi-dose dry powder inhaler (Spiromax) as 2 inhalations four times a day for the 12 week double-blind period. Participants then continue into the 40 week open-label period in which they administer albuterol multi-dose dry powder inhaler (Spiromax) inhalations of 90 mcg /inhalation as required (PRN).
干预措施: Placebo Spiromax (Drug)
Placebo Spiromax
Placebo delivered using a multi-dose dry powder inhaler (Spiromax) as 2 inhalations four times a day for the 12 week double-blind period. Participants then continue into the 40 week open-label period in which they administer albuterol multi-dose dry powder inhaler (Spiromax) inhalations of 90 mcg /inhalation as required (PRN).
干预措施: Albuterol Spiromax (Drug)
结局指标
主要结局
Changes From Screening in the Vital Signs That Are Clinically Significant in the Opinion of the Investigator
时间窗: Days -15 to -8 (Screening), Week 12, Week 52
Vital sign measurements (heart rate and blood pressure) were to be evaluated as part of the safety profile assessment. The participant was to be seated at least 2 minutes before vital signs were performed. Either an electronic or manual sphygmomanometer could be used.
Changes From Screening in the Results of the Electrocardiograms (ECGs) That Are Clinically Significant in the Opinion of the Investigator
时间窗: Days -15 to -8 (Screening), Week 12, Week 52
A standard 12-lead ECG was to be performed at screening and at week 12 and week 52 (TV15) or early termination/discontinuation of the participant. The ECG recording methods were to be centralized and standardized across all study subjects.
Participants With Treatment-Emergent Adverse Events
时间窗: Day 1 to Day 49 (study termination)
Adverse events (AEs) summarized in this table are those that began or worsened after treatment with study drug (treatment-emergent AEs). An adverse event was defined in the protocol as any untoward medical occurrence that develops or worsens in severity during the conduct of a clinical study and does not necessarily have a causal relationship to the study drug. Severity was rated by the investigator on a scale of mild, moderate and severe, with severe= an AE which prevents normal daily activities. Relation of AE to treatment was determined by the investigator. Serious AEs include death, a life-threatening adverse event, inpatient hospitalization or prolongation of existing hospitalization, persistent or significant disability or incapacity, a congenital anomaly or birth defect, OR an important medical event that jeopardized the patient and required medical intervention to prevent the previously listed serious outcomes.
Changes From Screening in the Results of the Physical Examination That Are Clinically Significant in the Opinion of the Investigator
时间窗: Days -15 to -8 (Screening), Week 12, Week 52
A complete physical examination was planned at study screening, week 12 and week 52 or early termination/discontinuation of the participant. At weeks 12 and 52,the qualified healthcare professional was to evaluate whether each physical finding is a new finding, worsening, improvement or resolution of an existing condition compared with the baseline physical exam. Where possible, the same qualified healthcare professional that performed the physical examination at study screening should perform all the scheduled physical examinations.
Changes From Screening in the Results of the Laboratory Evaluations That Are Clinically Significant in the Opinion of the Investigator
时间窗: Days -15 to -8 (Screening), Week 12, Week 52
Blood samples were to collected for laboratory evaluations at the screening visit and at weeks 12 and 52 or early termination/discontinuation of the participant. The blood samples were to be drawn after an overnight fast of at least 6 hours and analyzed by a central laboratory.
次要结局
未报告次要终点