Clinical trial NCT06440616: Benefit of Spectral Information in Patients Suspected for Lung Cancer
Official title: Benefit of Spectral Information Provided by Photon Counting CT in Patients Suspected for Lung Cancer
Study type: INTERVENTIONAL
Overall status: RECRUITING
Phase: NA
Conditions: Lung Neoplasm Malignant
Keywords: Computed tomography
Spectral CT
Lead sponsor: Copenhagen University Hospital at Herlev
Sponsor class: OTHER
Collaborators: name: Rigshospitalet, Denmark
name: Aarhus University Hospital
First posted: 2024-06-04
Enrollment: 1000
Sex: ALL
Standard ages: CHILD
ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: DIAGNOSTIC

Brief summary: Purpose The aim of the study is to investigate the utilization of photon counting CT (PCCT) and the spectral information provided to determine the impact of spectral information on follow-up examinations.

As secondary aims we will compare conventional CT, CT + 18Flouro-deoxy-glucose (18F-FDG) positron emission tomography (PET) and PCCT + 18F-FDG PET for the tumor-node-metastasis (TNM) staging of lung cancer patients.

PCCT with and without spectral information to assess the need for additional work-up,TNM classification, and sensitivity/specificity for malignant lesions. Patients will be randomized for reading with or without spectral information available within a clinical setting. The clinical readings are performed as a structured reports of all significant findings. Including both malignant and benign findings. Furthermore, in case additional follow-up/work-up is needed based on the guidelines on incidental findings by the American College of Radiology (ACR), this will be reported as well. If lesions suspicious of pulmonary malignancy is present, a provisional TNM classification is provided based on the scan findings.

After 3 months, the patient record is reviewed where additional examinations that can be attributed to the PCCT scan are recorded. The financial impact is calculated by a health economist based on the findings. PET/CT, conventional CT and PCCT combined with PET will be assessed retrospectively for comparison. Endpoints are number of supplementary examinations and cost savings. Sensitivity and specificity for any malignant finding. The T, N and M stages are assessed separately as diagnostic measures by the McNemar's test with a reference standard from the Danish Lung cancer register. The number of malignant lesions will be determined by reviewing the patient records incl. pathology assessment if available 12 months after inclusion of the last patient.


Eligibility criteria: Inclusion Criteria:

* Patients suspected of lung cancer refered to Copenhagen University Hospital as per the guidelines from the danish national health authorities from either the general practitioner or from the department of pulmonology.
* Informed consent

Exclusion Criteria:

* Patients who cannot tolerate intravenous iodinated contrast
* Already verified lung cancer from another institution
* Comorbidities that exclude the patient from receiving treatment
* Lack of reference standard in the form of either histology or follow-up
* Known extrapulmonary malignancy
* Technical limitations within the scans/reconstructions
* other

Primary outcomes:
measure: Number of follow up examinations
timeFrame: Baseline
Secondary outcomes:
measure: T, N, and M stage
timeFrame: 24 months
measure: Number of malignant lesions
timeFrame: 24 months
Other outcomes:
Locations:
city: Herlev
country: Denmark
facility: Copenhagen University Hospital Herlev
state: Capital Region
Study officials:
affiliation: Copenhagen University Hospital, Herlev-Gentofte
name: Michael B Andersen, PhD
role: PRINCIPAL_INVESTIGATOR
References: