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

June 18, 2026 updated by: NHS Greater Glasgow and Clyde

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

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.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
500

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • United Kingdom
      • Glasgow, United Kingdom
        • Recruiting
        • Queen Elizabeth University Hospital
        • Contact:
        • Principal Investigator:
          • Geesh Jayasekera

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

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

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Diagnostic
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Other: All patients
Diagnostic test: Low dose Chest CT
Low dose Chest CT

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
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.
Time Frame: 6 months
Number of patients successfully screened per protocol within recruitment timelines
6 months

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Sensitivity of LDCT for detecting confirmed lung cancer (proportion of patients with lung cancer correctly identified as positive).
Time Frame: Baseline
Baseline
Specificity of LDCT for detecting confirmed lung cancer (proportion of patients without lung cancer correctly identified as negative).
Time Frame: Baseline
Baseline
Lung cancer detection rate
Time Frame: Baseline
Proportion of participants found to have lung cancer
Baseline
Stage distribution of detected lung cancers
Time Frame: Baseline
The proportion detected at Stage I/II vs. Stage III/IV
Baseline
Detection rate of undiagnosed COPD and/or emphysema in participants.
Time Frame: Baseline
Baseline
Detection rate of undiagnosed interstitial lung abnormalities (ILA) and pulmonary fibrosis in participants.
Time Frame: Baseline
Baseline
Detection rate of undiagnosed significant coronary artery disease (CAD) in participants
Time Frame: Baseline
Baseline
Detection rate of undiagnosed heart failure - radiological, ECG or biomarker (elevated NT-proBNP) indicators requiring further evaluation in participants.
Time Frame: Baseline
Baseline
Detection rate of undiagnosed osteoporotic fractures in participants.
Time Frame: Baseline
Baseline
Impact of addressable long-term condition case-finding on subsequent investigations, preventative therapy initiation and clinical outcomes.
Time Frame: Year 1 and Year 2
Accessible 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.
Year 1 and Year 2
Performance and potential utility of AI-based radiology co-reporting of lung cancer screening CT scans
Time Frame: Baseline
Number of radiology reports which agree with the AI report
Baseline
Acceptability and qualitative evaluation
Time Frame: Baseline
Participant 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.
Baseline
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 fractures
Time Frame: Year 2
Year 2

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
NHS Greater Glasgow and Clyde

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Chris Carlin, NHSGGC

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
May 26, 2026

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 2, 2026

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
September 2, 2028

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
January 9, 2026

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 19, 2026

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
January 28, 2026

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
June 23, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
June 18, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
June 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • INGN25HS173
  • IRAS: 357735 (Other Identifier: IRAS)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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