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Markerless Image Guidance Using Intrafraction Kilovoltage X-ray Imaging

MAGIK: Using Implanted Markers to Determine the Feasibility of Markerless Image Guidance Using Intrafraction Kilovoltage X-ray Imaging: A Phase I Interventional Study of Lung Cancer Radiotherapy

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04086082
Acronym
MAGIK
Enrollment
30
Registered
2019-09-11
Start date
2023-05-24
Completion date
2028-12-01
Last updated
2026-05-20

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

Conditions

Lung Cancer

Keywords

Lung cancer, NSCLC, Oligometastases

Brief summary

This trial will investigate the feasibility of the Markerless Tumour Tracking technology.

Detailed description

Markerless Tumour Tracking will be integrated with existing treatment machines to provide real-time monitoring of tumour motion during treatment delivery. Eligible patients will be implanted with fiducial markers, which act as the ground truth for evaluating the accuracy of Markerless Tumour Tracking. The patients will undergo the current standard of care radiotherapy, with the exception that kilovoltage x-ray images will be acquired continuously during treatment delivery to enable Markerless Tumour Tracking.

Interventions

DEVICEMarkerless Image Guidance

Single arm trial using implanted markers to determine the feasibility of Markerless Image Guidance using Intrafraction Kilovoltage X-ray Imaging

Sponsors

University of Sydney
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Is willing to comply with all trial procedures and intends to provide written Informed Consent for participation in this trial. * Patients undergoing external beam radiotherapy. * Histologically proven Stage I NSCLC or oligometastatic lung metastases (3 or less). * MRI/4D-CT prior to insertion of fiducial markers. * Patient must be able to have fiducial markers placed in the lung (if on anticoagulants, must be cleared by LMO or cardiologist). * ECOG performance status 0-2. * A maximum of three metastases to the lung from any non-haematological malignancy. Multiple metastases will be treated separately. * 1 cm ≤ Tumour diameter in any dimension ≤ = 5 cm. * The distance between the tumour centroid and the top end of the diaphragm is \<=10 cm.

Exclusion criteria

* Patient has low respiratory performance as evaluated by the physicians. * Previous high-dose thoracic radiotherapy. * Less than one fiducial marker implanted in the lung. * Fiducial markers are too far from the tumour centroid (\>9 cm). * Cytotoxic chemotherapy within 3 weeks of commencement of treatment, or concurrently with treatment. Hormonal manipulation agents are allowable (e.g. aromatase inhibitors, selective oestrogen receptor modulators, and gonadotropin releasing hormone receptor modulators). * Targeted agents (such as sunitinib, bevacizumab and tarceva) within 7 days of commencement of treatment, or concurrently with treatment. * Women who are pregnant or lactating. * Unwilling or unable to complete quality of life questionnaires.

Design outcomes

Primary

MeasureTime frameDescription
Markerless Tumour Tracking is feasible for motion-adaptive lung cancer radiotherapy2 yearsThis will be measured by 90% of the treatment fractions achieving: 1. Continuous on-line tracking with no software failure; 2. Agreement between markerless and marker-based tracking within 3 mm in each direction (left-right, superior-inferior, anterior-posterior) for at least 80% of the beam-on time as assessed in off-line analyses.

Countries

Australia

Contacts

CONTACTTrial Coordinator
shona.silvester@sydney.edu.au+61 2 8627 1185
CONTACTResearch Student
Jonathan.Hindmarsh@sydney.edu.au+61 2 8627 1185
PRINCIPAL_INVESTIGATORPaul Keall, PhD

University of Sydney

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 21, 2026