Treatment of Chronic Cough in Idiopathic Pulmonary Fibrosis With Thalidomide
试验速览
- 阶段
- 3 期
- 状态
- 已完成
- 入组人数
- 25
- 试验地点
- 1
- 主要终点
- Efficacy of Thalidomide in Suppressing the Chronic Cough of Idiopathic Pulmonary Fibrosis Using the Cough Quality of Life Questionnaire.
研究概览
简要总结
Idiopathic Pulmonary Fibrosis (IPF) is a rapidly progressive lung disorder that is often associated with a chronic, intractable cough. The etiology of the cough associated with IPF is unclear but it is often so severe that it adversely effects the patient's quality of life. We propose that thalidomide specifically suppresses the cough associated with idiopathic pulmonary fibrosis via its anti-inflammatory properties, by suppressing the excessive functional up-regulation of sensory fibers with in the respiratory tract of patients with IPF.
This study is a Phase III, double blinded, randomized, placebo controlled, crossover trial testing the efficacy of thalidomide in suppressing the chronic cough of IPF. The primary objective of this study is to determine the efficacy of thalidomide administered daily for 12 weeks to suppress the chronic cough in patients with idiopathic pulmonary fibrosis as measured by cough specific questionnaires, scales and improved quality of life.
详细描述
This study is a Phase III, double blinded, randomized, placebo controlled, crossover trial testing the efficacy of thalidomide in suppressing the chronic cough of IPF. All subjects will be randomized to either begin the study receiving the active study drug - (thalidomide) or inactive drug (placebo). Study drug will be administered in escalating dose starting at 50 mg a day increasing to 100 mg a day if cough is still present after 2 weeks. Study drug will be taken by mouth at bedtime. Patients will remain on their initial treatment for 12 weeks. After 12 weeks of treatment, the subjects will be administered the Cough Specific Quality of Life Questionnaire (CQLQ), a visual cough analogue scale, and St. Georges Respiratory Questionnaire (SGRQ). In addition, investigators will collect the subjects cough diary. After 12 weeks of treatment all subjects will enter a 2 week wash-out phase in which all drugs will be discontinued. After the 2 week wash-out phase, all subjects will again be administered the Cough Specific Quality of Life Questionnaire (CQLQ), a visual cough analogue scale, and St. Georges Respiratory Questionnaire (SGRQ). In addition, investigators will collect the subjects cough diary. All subjects will then be crossed over to the other treatment arm for an additional 12 weeks of treatment. After the second 12 weeks of treatment, the subjects will be administered the Cough Specific Quality of Life Questionnaire (CQLQ), a visual cough analogue scale, and St. Georges Respiratory Questionnaire (SGRQ). In addition, investigators will collect the subjects cough diary.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Crossover
- 主要目的
- Treatment
- 盲法
- Double (Participant, Investigator)
入排标准
- 年龄范围
- 50 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Idiopathic pulmonary fibrosis for >3 months <5 years
- •High resolution CT scan of chest consistent with IPF within the previous 12 months
- •FVC > 40% and < 90% predicted, TLC >40% <80%, DLCo >30% <90%
- •Chronic Cough - cough >8 weeks
- •Non-child bearing potential
排除标准
- •Pregnant or lactating women
- •Women of child bearing potential
- •Known etiology of lung fibrosis other than IPF
- •Significant respiratory toxin exposure
- •Collagen Vascular Disease
- •Use of narcotic anti-cough agent in last week
- •significant peripheral vascular disease or neuropathy
- •history of seizures
- •poorly controlled diabetes
- •allergy to thalidomide
研究组 & 干预措施
Experimental: Placebo, then Thalidomide
Participants first received Placebo tablet for 12 weeks. After a washout period of two weeks, they then received Thalidomide tablet for 12 weeks.
干预措施: Thalidomide (Drug)
Experimental: Thalidomide, then placebo
Participants first received Thalidomide tablet for 12 weeks. After a washout period of two weeks, they then received placebo tablet for 12 weeks.
干预措施: Thalidomide (Drug)
Experimental: Thalidomide, then placebo
Participants first received Thalidomide tablet for 12 weeks. After a washout period of two weeks, they then received placebo tablet for 12 weeks.
干预措施: Placebo (Drug)
Experimental: Placebo, then Thalidomide
Participants first received Placebo tablet for 12 weeks. After a washout period of two weeks, they then received Thalidomide tablet for 12 weeks.
干预措施: Placebo (Drug)
结局指标
主要结局
Efficacy of Thalidomide in Suppressing the Chronic Cough of Idiopathic Pulmonary Fibrosis Using the Cough Quality of Life Questionnaire.
时间窗: 6 months
The primary endpoint, suppression of cough was measured by the Cough Quality of Life Questionnaire (CQLQ) to measure the effect of interventions on cough-specific quality of life. CQLQ consist of 28 questions about cough and its effects using Likert-like 4-point scales, with lower scores indicating less effect of cough on health related quality of life. CQLQ scale ranges from 28 to 112 ( The lower the value, the higher the quality of life, 28 is considered the best).
次要结局
- Efficacy of Thalidomide in Suppressing the Chronic Cough of Idiopathic Pulmonary Fibrosis Using the Visual Analog Scale of Cough and the St. George Respiratory Questionnaire.(6 months)
研究者
Maureen R. Horton
Associate Professor of Medicine
Johns Hopkins University