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Screening for Lung Cancer in Current or Past Smokers With Chronic Obstructive Pulmonary Disease

20 dicembre 2011 aggiornato da: University College, London

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.

Panoramica dello studio

Stato

Completato

Condizioni

Intervento / Trattamento

Descrizione dettagliata

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.

Tipo di studio

Interventistico

Iscrizione (Effettivo)

1569

Fase

  • Non applicabile

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Luoghi di studio

  • Regno Unito
    • England
      • Cambridge, England, Regno Unito, CB23 3RE
        • Papworth Hospital
      • Coventry, England, Regno Unito, CV2 2DX
        • Walsgrave Hospital
      • Leeds, England, Regno Unito, LS1 3EX
        • Leeds General Infirmary
      • Leicester, England, Regno Unito, LE3 9QP
        • University Hospitals Of Leicester Nhs Trust
      • London, England, Regno Unito, SW3 6NP
        • Royal Brompton Hospital
      • London, England, Regno Unito, SW10 9NH
        • Chelsea Westminster Hospital
      • London, England, Regno Unito, WC1E 5DB
        • University College Hospital - London
      • Manchester, England, Regno Unito, M23 9LT
        • Wythenshawe Hospital
      • Sunderland, England, Regno Unito, SR4 7TP
        • Sunderland Royal Hospital
    • Northern Ireland
      • Belfast, Northern Ireland, Regno Unito, BT9 7AB
        • Respiratory Research Office Belfast City Hospital

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

  • Bambino
  • Adulto
  • Adulto più anziano

Accetta volontari sani

No

Sessi ammissibili allo studio

Tutto

Descrizione

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

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

  • Scopo principale: Selezione
  • Assegnazione: Randomizzato
  • Modello interventistico: Assegnazione parallela
  • Mascheramento: Nessuno (etichetta aperta)

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Comparatore attivo: Controllo
Braccio di controllo
Altro: Chest x ray
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.
Altro: Surveillance
Screened arm
Altro: cytology and cytometry specimen collection procedure
Samples tested and further interventions added if positive
Altro: Chest x ray
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.
Procedura: Autofluorescence bronchoscopy
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.
Altri nomi:
  • AFB
Procedura: CT scan
All patients with abnormal sputum cytology and/or cytometry will undergo low dose spiral CT without contrast.

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Proportion of lung cancer that is diagnosed as stage I or II
Lasso di tempo: 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

Misure di risultato secondarie

Misura del risultato
Lasso di tempo
Uptake of screening (the proportion of patients in the surveillance arm who undergo annual screening, among those invited to attend)
Lasso di tempo: 5 Years
5 Years
Proportion of patients in the surveillance arm who have abnormal sputum cytology
Lasso di tempo: 5 Years
5 Years
Proportion of patients in the surveillance arm who have abnormal sputum cytometry
Lasso di tempo: 5 Years
5 Years
Death from lung cancer
Lasso di tempo: 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)
Lasso di tempo: 5 Years
5 Years
Prevalence of pre-invasive disease in patients in the surveillance arm with abnormal cytometry
Lasso di tempo: 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
Lasso di tempo: 5 Years
5 Years

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Sponsor

University College, London

Investigatori

  • Cattedra di studio: Stephen G. Spiro, University College London Hospitals

Pubblicazioni e link utili

La persona responsabile dell'inserimento delle informazioni sullo studio fornisce volontariamente queste pubblicazioni. Questi possono riguardare qualsiasi cosa relativa allo studio.

Pubblicazioni generali

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio

1 agosto 2007

Completamento primario (Effettivo)

1 marzo 2011

Date di iscrizione allo studio

Primo inviato

6 agosto 2007

Primo inviato che soddisfa i criteri di controllo qualità

6 agosto 2007

Primo Inserito (Stima)

8 agosto 2007

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Stima)

21 dicembre 2011

Ultimo aggiornamento inviato che soddisfa i criteri QC

20 dicembre 2011

Ultimo verificato

1 dicembre 2011

Maggiori informazioni

Termini relativi a questo studio

Parole chiave

Termini MeSH pertinenti aggiuntivi

Altri numeri di identificazione dello studio

  • CDR0000558413
  • CRUK-BRD/06/10
  • EU-20738
  • ISRCTN80745975

Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .

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