Lung Cancer Early Diagnosis With Digital Tomosynthesis: Re-evaluation of Lung Nodule Detection Rate at 5 Years

Lung Cancer Clinical Trial

— SOS2  

Official title:

A Monocenter Prospective No-profit Interventional Study for Lung Cancer Early Diagnosis With Tomosynthesis: Re-evaluation of Lung Nodule Detection Rate at 5 Years

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT03645018
• Other study ID #: SOS2
• Status: Completed
• Phase: Phase 3
• Start date: September 1, 2017
• Est. completion date: August 31, 2018

Study information

• Verified date: September 2018
• Source: Ospedale Santa Croce-Carle Cuneo
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

Lung cancer is the leading cause of cancer-related death around the world, it represents 13% of all new cancer diagnoses. The lung cancer incidence is gradually increasing, especially among women and young people, but the fraction of cured patient remains low. In 80% of cases lung cancer, in early phase, is treatable only with surgery without chemotherapy or adjuvant radiotherapy and the survival perspective at five years exceeds 70%. Several scientific guidelines recommends chest CT (computed tomography) in lung cancer screening. Digital tomosynthesis (DTS) is a limited angle tomography that allows reconstruction of coronal images from a set of projection acquired over a small angle of X-ray tube movement. Several studies demonstrates that DTS is a reasonable alternative to the CT and allows a better evaluation of suspects nodules compared to conventional chest RX.

Description:

Lung cancer is the leading cause of cancer-related death around the world. In 2008 there were nearly 1.6 million new cases worldwide, accounting for the 12.7% of all new cancer diagnoses. Despite decreasing trends in smoking and resulting decrease in lung cancer mortality, the population at risk for lung cancer continues to be large. In the past years several programs have been developed to screen for lung cancer using low-dose chest computed radiography (CT). However, only recently different studies demonstrated a clear reduction in mortality. In particular, NLST low dose CT screening trial demonstrated a 6.7% reduction in the death rate compared to chest X-ray with a positive screening test rate for lung cancer detection of 24.2%, compared to 6.9% for conventional X-ray. Digital tomosynthesis (DTS) is a limited angle tomography that allows reconstruction of multiple image planes from a set of projection data acquired over a relatively small angle of X-ray tube movement. Although it does not have the spatial depth resolution of computed tomography, it provides high-resolution images in the sagittal planes at a lower dose and cost than CT. Several studies have shown that DTS offers advantages over conventional chest X-ray and comparable of those of CT. The Studio OSservazionale (SOS) was a clinical trial conducted within Santa Croce e Carle Hospital analysing smokers and former smokers aged 45-80 with no cancer diagnosis. All the subjects in whom a suspicious nodule was detected by DTS underwent diagnostic CT. The SOS study demonstrated that baseline DTS detected pulmonary abnormalities in 14.5% and lung cancer in 1.0% of the subjects, comparable to results that are obtained in CT screening programs. A second DTS, within the same study, executed one year later reported pulmonary abnormalities in 0.7% and lung cancer in 0.3% of the subjects.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 1341
• Est. completion date: August 31, 2018
• Est. primary completion date: August 31, 2018
• Accepts healthy volunteers: No
• Gender: All
• Age group: 45 Years to 80 Years

Eligibility

Inclusion Criteria:

• current or former smoker status;

• for former smokers, the maximum time since quitting smoking must be below 10 years;

• smoking history of at least 20 pack-years;

• age 45-80 years;

• no previous history of cancer in the 10 years before the beginning of the study;

• be able to stand and hold the breath for 11 seconds during image acquisition;

• previous participation to SOS trial.

Exclusion Criteria:

• pregnancy

Related Conditions & MeSH terms

• Lung Cancer
• Lung Neoplasms

Intervention

Diagnostic Test:
• diagnosis with tomosynthesis
Re-evaluation of lung nodule detection rate at 5 years in patients with early diagnosis of lung cancer

Locations

Country	Name	City	State
Italy	OSCroceCarle	Cuneo	CN

Sponsors (3)

Lead Sponsor	Collaborator
Ospedale Santa Croce-Carle Cuneo	Fondazione CRC - Cuneo, University of Turin, Italy

Country where clinical trial is conducted

Italy, 

References & Publications (2)

Bertolaccini L, Viti A, Tavella C, Priotto R, Ghirardo D, Grosso M, Terzi A; SOS Study Group. Lung cancer detection with digital chest tomosynthesis: first round results from the SOS observational study. Ann Transl Med. 2015 Apr;3(5):67. doi: 10.3978/j.is — View Citation

Terzi A, Bertolaccini L, Viti A, Comello L, Ghirardo D, Priotto R, Grosso M; SOS Study Group. Lung cancer detection with digital chest tomosynthesis: baseline results from the observational study SOS. J Thorac Oncol. 2013 Jun;8(6):685-92. doi: 10.1097/JTO — View Citation

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	To evaluate the lung cancer detection rate in the population of high risks subjects previously enrolled in lung cancer screening trial with chest digital tomosynthesis (SOS trial).	Lung cancer detection rate (primary endpoint)	1 year
Secondary	Percentage of lung cancer addressed to radical surgery treatment		1 year
Secondary	Sensitivity of DTS evaluating the number of lung cancer occurred in the population of SOS study in the last 5 years		1 year
Secondary	Mortality		1 year
Secondary	OS	Overall survival	1 year
Secondary	QoL: quality of life: Percentage of partecipants changing their smoking habits	Percentage of partecipants changing their smoking habits after trial	1 year