- ICH GCP
- Реестр клинических исследований США
- Клиническое испытание NCT00512746
Screening for Lung Cancer in Current or Past Smokers With Chronic Obstructive Pulmonary Disease
A Randomised Controlled Trial of Surveillance for the Early Detection of Lung Cancer in an at Risk Group [Lung-SEARCH Trial]
RATIONALE: Screening tests or exams may help doctors find lung cancer sooner, when it may be easier to treat.
PURPOSE: This randomized clinical trial is studying screening tests or exams to see how well they work compared to usual care in finding early stage lung cancer in current or past smokers with chronic obstructive pulmonary disease.
Обзор исследования
Статус
Условия
Подробное описание
OBJECTIVES:
Primary
- To show that the proportion of lung cancer diagnosed at stage I or II is significantly greater in the surveillance arm than in the control arm.
Secondary
- Establish whether sputum cytology and/or cytometry can be employed to stratify patients with chronic obstructive pulmonary disease (COPD) according to their risk of developing incidence lung cancer.
- Identify patients with pre-invasive lesions in their airways and examine the risk of developing lung cancer in patients harboring these lesions.
- Provide an opportunity to archive blood samples from patients under surveillance to enable the identification of markers of disease progression.
- Examine the compliance of regular screening among patients in this high-risk group.
- Determine the proportion of patients in which it is not possible to provide a sputum screening result.
OUTLINE: This is a randomized, controlled, multicenter study. Patients are stratified according to recruiting site, age, gender, smoking history (current vs ex-smoker) and severity of chronic obstructive pulmonary disease (COPD) (mild vs moderate). Patients are randomized to 1 of 2 arms.
- Control arm: Patients are managed according to the usual practice of their hospital or general practice for their COPD treatment. They undergo no particular investigations except those that may arise due to a change in their clinical condition. Those patients who are not diagnosed with lung cancer during the course of the study are offered a chest x-ray after 5 years of follow-up.
- Surveillance arm: Patients undergo surveillance for 5 years. A sputum sample is collected for cytology and cytometry. If the sputum sample is normal the patient is asked to provide a sputum sample annually. If the sputum sample is abnormal the patient undergoes an annual spiral CT scan followed by autofluorescence bronchoscopy. At bronchoscopy, the following samples are taken: bronchial washings, bronchial brushings, and bronchial biopsies. Bronchoscopy is repeated every 4-12 months depending upon the histology results. If an invasive lesion is found, the patient is referred for treatment via the normal hospital systems. Any remaining sputum sample is stored frozen as part of the tissue bank associated with this trial.
Peer Reviewed and Funded or Endorsed by Cancer Research UK.
Тип исследования
Регистрация (Действительный)
Фаза
- Непригодный
Контакты и местонахождение
Места учебы
-
-
England
-
Cambridge, England, Соединенное Королевство, CB23 3RE
- Papworth Hospital
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Coventry, England, Соединенное Королевство, CV2 2DX
- Walsgrave Hospital
-
Leeds, England, Соединенное Королевство, LS1 3EX
- Leeds General Infirmary
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Leicester, England, Соединенное Королевство, LE3 9QP
- University Hospitals of Leicester Nhs Trust
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London, England, Соединенное Королевство, SW3 6NP
- Royal Brompton Hospital
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London, England, Соединенное Королевство, SW10 9NH
- Chelsea Westminster Hospital
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London, England, Соединенное Королевство, WC1E 5DB
- University College Hospital - London
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Manchester, England, Соединенное Королевство, M23 9LT
- Wythenshawe Hospital
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Sunderland, England, Соединенное Королевство, SR4 7TP
- Sunderland Royal Hospital
-
-
Northern Ireland
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Belfast, Northern Ireland, Соединенное Королевство, BT9 7AB
- Respiratory Research Office Belfast City Hospital
-
-
Критерии участия
Критерии приемлемости
Возраст, подходящий для обучения
- Ребенок
- Взрослый
- Пожилой взрослый
Принимает здоровых добровольцев
Полы, имеющие право на обучение
Описание
DISEASE CHARACTERISTICS:
Inclusion criteria:
Meets 1 of the following criteria:
- Current smoker, defined as ≥ a 20 pack year smoking history and/or 20 year duration of smoking
- Ex-smoker who has quit smoking within the past 8 years AND has ≥ a 20 pack year smoking history and/or 20 year duration of smoking
Mild to moderate chronic obstructive pulmonary disease (COPD) as defined by the GOLD criteria
- Mild COPD: FEV_1/forced vital capacity (FVC) < 70%; FEV_1 ≥ 80% of predicted*
- Moderate COPD: FEV_1/FVC < 70%; FEV_1 50-80% of predicted* NOTE: *Spirometric values will be obtained post bronchodilator according to the recommendations in the GOLD criteria
Exclusion criteria:
- Inadequate lung function (FEV_1 < 50% of predicted after bronchodilator)
PATIENT CHARACTERISTICS:
Inclusion criteria:
- Life expectancy must be at least 5 years
Exclusion criteria:
- History of malignant disease within the past 5 years except non-melanomatous skin cancers
- Other serious co-morbidity
- Evidence of severe or uncontrolled systemic diseases that, in the view of the investigator, makes it undesirable for the patient to participate in this trial
- Any disorder making reliable informed consent impossible
- Unlikely to co-operate with a 5 year follow-up
PRIOR CONCURRENT THERAPY:
- Patients may receive all concurrent therapy deemed to provide adequate care as decided by their medical doctors
Учебный план
Как устроено исследование?
Детали дизайна
- Основная цель: Скрининг
- Распределение: Рандомизированный
- Интервенционная модель: Параллельное назначение
- Маскировка: Нет (открытая этикетка)
Оружие и интервенции
Группа участников / Армия |
Вмешательство/лечение |
|---|---|
|
Активный компаратор: Контроль
Рычаг управления
|
Patients not diagnosed with lung cancer during the course of the study, will be offered an exit chest x-ray after 5 years or sooner if they withdraw from the trial before 5 years.
This could help identify a lung cancer that may not have been associated with symptoms earlier.
|
|
Другой: Surveillance
Screened arm
|
Samples tested and further interventions added if positive
Patients not diagnosed with lung cancer during the course of the study, will be offered an exit chest x-ray after 5 years or sooner if they withdraw from the trial before 5 years.
This could help identify a lung cancer that may not have been associated with symptoms earlier.
The bronchial tree will be inspected first under white light and then under blue light.
All areas that appear abnormal will initially be documented and only sampled when the bronchoscopic examination has been completed.
Другие имена:
All patients with abnormal sputum cytology and/or cytometry will undergo low dose spiral CT without contrast.
|
Что измеряет исследование?
Первичные показатели результатов
Мера результата |
Мера Описание |
Временное ограничение |
|---|---|---|
|
Proportion of lung cancer that is diagnosed as stage I or II
Временное ограничение: 5 years
|
In the control arm, it is expected that only 15% of cancers will be detected early.
In the surveillance arm, we expect that at the time of the first screen, the detection rate of prevalence cancers will be about 3%, from data reported in CT screening studies
|
5 years
|
Вторичные показатели результатов
Мера результата |
Временное ограничение |
|---|---|
|
Uptake of screening (the proportion of patients in the surveillance arm who undergo annual screening, among those invited to attend)
Временное ограничение: 5 Years
|
5 Years
|
|
Proportion of patients in the surveillance arm who have abnormal sputum cytology
Временное ограничение: 5 Years
|
5 Years
|
|
Proportion of patients in the surveillance arm who have abnormal sputum cytometry
Временное ограничение: 5 Years
|
5 Years
|
|
Death from lung cancer
Временное ограничение: Up to 15 years
|
Up to 15 years
|
|
Proportion of failed sputum samples (i.e., where it is not possible to obtain adequate sputum samples)
Временное ограничение: 5 Years
|
5 Years
|
|
Prevalence of pre-invasive disease in patients in the surveillance arm with abnormal cytometry
Временное ограничение: 5 Years
|
5 Years
|
|
Number of patients in the surveillance arm with pre-invasive lesions who develop lung cancer locally and at remote sites within the lung
Временное ограничение: 5 Years
|
5 Years
|
Соавторы и исследователи
Спонсор
Следователи
- Учебный стул: Stephen G. Spiro, University College London Hospitals
Публикации и полезные ссылки
Даты записи исследования
Изучение основных дат
Начало исследования
Первичное завершение (Действительный)
Даты регистрации исследования
Первый отправленный
Впервые представлено, что соответствует критериям контроля качества
Первый опубликованный (Оценивать)
Обновления учебных записей
Последнее опубликованное обновление (Оценивать)
Последнее отправленное обновление, отвечающее критериям контроля качества
Последняя проверка
Дополнительная информация
Термины, связанные с этим исследованием
Дополнительные соответствующие термины MeSH
Другие идентификационные номера исследования
- CDR0000558413
- CRUK-BRD/06/10
- EU-20738
- ISRCTN80745975
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