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Glasgow Low-dose CT and AI-based Diagnostics to Case Find Lung Cancer and Other Cardio-respiratory Long-term Conditions - Feasibility Study

GALACTIC 1 - Glasgow Low-dose CT and AI-based Diagnostics to Case Find Lung Cancer and Other Cardio-respiratory Long-term Conditions - Feasibility Study

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07372508
Acronym
GALACTIC-1
Enrollment
500
Registered
2026-01-28
Start date
2026-05-26
Completion date
2028-09-02
Last updated
2026-06-23

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Cancer

Brief summary

Lung cancer is one of the most common and serious cancers in Scotland and is often diagnosed at a late stage. Early detection is crucial to improving survival rates. The value of screening for lung cancer with low-dose CT (LDCT) scans has been established, and these scans can also identify other diagnoses earlier. Additional tests undertaken alongside the CT scan may add value to the lung cancer screening program being rolled out. This study aims to explore the feasibility and utility of a lung cancer screening program with added heart and breathing tests within a single clinic visit. A Lung Health Check will be offered to people at higher risk of lung cancer, specifically those aged 55-74 with a history of cigarette smoking. This will include a quick and painless LDCT scan, which uses a small amount of radiation to create detailed images of the lungs to detect lung cancer at an early and more treatable stage. In this "GALACTIC-1" study, the investigators will explore whether structured reporting of the CT scan, combined with additional tests (blood sample, ECG heart trace, and spirometry breathing test), can help identify conditions such as chronic obstructive pulmonary disease (COPD), lung scarring (pulmonary fibrosis), coronary artery disease, heart failure, and early signs of bone fractures (osteoporosis). This enhanced Lung Health Check may improve overall health by identifying and allowing early management of these conditions. The investigators plan to use the data from the "GALACTIC-1" study to explore AI performance by comparing it to reporting done by doctors. The results will help shape future rollout of lung cancer screening across Scotland, ensuring it is effective, efficient, and beneficial. The investigators will also have a focus group with patients and interviews with NHS staff to understand their opinions on the screening.

Interventions

DIAGNOSTIC_TESTLow dose Chest CT

Low dose Chest CT

Sponsors

NHS Greater Glasgow and Clyde
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
DIAGNOSTIC
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
55 Years to 74 Years
Healthy volunteers
No

Inclusion criteria

* Resident in South Sector NHS GG\&C. * Capacity to undertake informed consent. * No active cancer other than non-melanoma skin cancer, monitored localised prostate cancer or localised treated breast cancer. * Aged 55-74 at date of invitation. * Smoking history: current tobacco smoker or ex-smoker with \>20 pack year history and \<15 years from quit date.

Exclusion criteria

* CT thorax scan undertaken in prior 12 months. * Does not have capacity to give consent (standard criteria for assessing capacity apply). * Aged \<55 or \>74 years of age at date of invitation * Weight exceeds restrictions for scanner (\>200kg). * Unable to lie flat. * People who are pregnant. * Active symptoms of possible lung cancer

Design outcomes

Primary

MeasureTime frameDescription
Proportion of eligible invited participants who receive all components of the combined low-dose CT (LDCT) screening and AI-assisted cardiorespiratory diagnostic tests within the study active period.6 monthsNumber of patients successfully screened per protocol within recruitment timelines

Secondary

MeasureTime frameDescription
Sensitivity of LDCT for detecting confirmed lung cancer (proportion of patients with lung cancer correctly identified as positive).Baseline
Specificity of LDCT for detecting confirmed lung cancer (proportion of patients without lung cancer correctly identified as negative).Baseline
Lung cancer detection rateBaselineProportion of participants found to have lung cancer
Stage distribution of detected lung cancersBaselineThe proportion detected at Stage I/II vs. Stage III/IV
Detection rate of undiagnosed COPD and/or emphysema in participants.Baseline
Detection rate of undiagnosed interstitial lung abnormalities (ILA) and pulmonary fibrosis in participants.Baseline
Detection rate of undiagnosed significant coronary artery disease (CAD) in participantsBaseline
Detection rate of undiagnosed heart failure - radiological, ECG or biomarker (elevated NT-proBNP) indicators requiring further evaluation in participants.Baseline
Detection rate of undiagnosed osteoporotic fractures in participants.Baseline
Impact of addressable long-term condition case-finding on subsequent investigations, preventative therapy initiation and clinical outcomes.Year 1 and Year 2Accessible health records, investigation requests, prescriptions, hospital admissions and survival at year 1 and year 2 post Galactic-1 clinic will be reviewed to determine the impact the LDCT had on the patient's care.
Performance and potential utility of AI-based radiology co-reporting of lung cancer screening CT scansBaselineNumber of radiology reports which agree with the AI report
Acceptability and qualitative evaluationBaselineParticipant experience questionnaires will be collected during GALACTIC-1 clinic to provide an overview of experienced acceptability at the time of clinic attendance. Additional focus group or semi-structured interviews will be conducted.
The potential cost-effectiveness of AI-detection of early-stage lung cancer as well as other conditions such as COPD, pulmonary fibrosis, coronary artery disease, heart failure, and osteoporotic fracturesYear 2

Countries

United Kingdom

Contacts

CONTACTClare Dolan
clare.dolan3@nhs.scot0141 314 4328
PRINCIPAL_INVESTIGATORChris Carlin

NHSGGC

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 24, 2026