Royal Melbourne Hospital
Melbourne, Victoria, 3050, Australia
Location status: Recruiting
NCT Number: NCT07122258
This study aims to evaluate the safety of the CAROL device for treating lung tumors in patients diagnosed with non-small cell lung cancer (NSCLC) with tumor size ≤ 2 cm (cT1b). The primary objective is to assess safety by monitoring and grading adverse events using the CTCAE v5.0 criteria at one month following the procedure.
Interested in participating?
Request Info18 year and older
All sexes
Interventional
Not applicable
Melbourne, Victoria, 3050, Australia
Location status: Recruiting
Healthy volunteers accepted: No
Only the study team can determine whether someone qualifies for participation.
Inclusion criteria
Those who meet all the following criteria are eligible to participate in the clinical trial.
Exclusion criteria
Those who meet any of the following criteria are excluded from this clinical trial.
Participants in this single-arm study will undergo treatment with the CAROL device for localized lung tumors (NSCLC ≤ 2 cm, cT1b). All participants will receive a single CAROL procedure using a conformable electrode, followed by surgical resection of the tumor.
The first 3 sentinel participants will receive a maximum dose of 0.3 mL of the conformable electrode. The next 4 participants will receive up to 2.0 mL. Safety and preliminary efficacy will be assessed through scheduled follow-up visits, including imaging, pulmonary function testing, laboratory assessments and pain monitoring.
Adverse events will be monitored throughout the study, with grading based on CTCAE v5.0, specifically focusing on "Respiratory, thoracic, and mediastinal disorders." The study includes visits at screening, pre-procedure, post-procedure (24-36 hours), pre- and post-resection, and follow-up at approximately one and three months.
Time frame: 1 month post-procedure
Graded using CTCAE grade (v5.0) criteria(CTCAE) The CTCAE utilizes a scale ranging from Grade 1 (mild) to Grade 5 (death-related) to classify the severity of adverse events. A higher CTCAE grade indicates increased severity of the adverse event, signifying a worse outcome.
Time frame: Immediately after application (measured by imaging during the procedure)
Success rate of CAROL device positioning at the target site The success rate of CAROL device positioning at the target site immediately after application, as assessed by fluoroscopic imaging and /or bronchoscopic visualization during the procedure. Proper positioning is defined as complete coverage of the target segmental bronchus by the ablation electrode without malposition or dislodgement. Frequencies and percentages will be presented to summarise the success rate.
Time frame: Immediately after procedure (intraoperative and early postoperative period)
Successful delivery of the ablation treatment for lung cancer using the CAROL system, performed according to the Instruction for Use (IFU) and treatment plan. Success will be determined based on the following criteria:
Successful delivery of the CAROL catheter to the target site Successful injection of the Conformable Electrode (E-GaIn) Achievement of target ablation temperature Retrieval of the device without malfunction
Time frame: 5 ~ 10 days after lung resection
Pathological analysis Pathological evidence of effective ablation will be evaluated using hematoxylin and eosin (H&E) staining to assess tissue viability. The extent of the coagulative necrotic zone relative to the tumor location will be quantified by pathologists. Descriptive statistics (mean, range) will summarize the extent of ablation effectiveness.
Time frame: 2~9 days after the CAROL procedure
Imaging data evaluation Imaging data from computed tomography (CT) scans will be assessed to evaluate the extent of ablation, including lesion size and ablation margin relative to baseline. Measurements will be reviewed by radiologists using standard radiologic assessment criteria. Descriptive statistics will be presented for changes in treated areas.
Time frame: 2~9 days after CAROL the procedure
Evaluation of Quality of Life scores(EQ-5D) The EQ-5D questionnaire will be used to assess patient's health-related quality of life. The EQ-5D includes 5 dimensions (mobility, self-care, usual activities, pain/discomfort, and anxiety/depression), each scored on 5 levels.
Scores will be converted to an index value ranging from -0.594 (worst health state) to 1.000 (perfect health), based on country-specific value sets. Higher scores indicate better health-related quality of life.
Time frame: 2~9 days after the CAROL procedure
Visual Analogue Scale (VAS) Pain intensity will be assessed using the Visual Analogue Scale (VAS), a validated instrument consisting of a 10 cm horizontal line anchored by "no pain" (0) and "worst imaginable pain" (10). Participants will be asked to indicate their current level of pain on the scale. Higher scores indicate greater pain severity.
Time frame: 6~14 days after the CAROL procedure
The volume of Conformable Electrode (E-GaIn) predicted during the planning phase will be compared with the actual volume delivered during the CAROL procedure. Measurements will be obtained from procedure records and delivery system readouts. Differences will be quantified in milliliters (mL) and summarized using descriptive statistics.
Time frame: 6 to 14 days after the CAROL procedure
The ablation size predicted during pre-treatment planning will be compared to the actual ablation zone measured by post-procedural imaging. Ablation volume will be quantified in cubic centimeters (cm3) using CT or MRI data, and descriptive statistics will be used to summarize differences.
Time frame: Day 23 to Day 37 after the CAROL procedure
CT images will be used to assess the spatial distribution of the Conformable Electrode (E-GaIn) across different bronchial structures. Anatomical coverage (e.g., lobar/segmental bronchi), symmetry, and dispersion pattern will be visually classified and quantitatively measured by independent radiologists. Descriptive statistics will summarize the observed distribution patterns.
Time frame: Day 23 to Day 37 after the CAROL procedure
The feasibility of procedural planning will be assessed based on whether the planned delivery paths through bronchial geometries were technically achievable during procedure simulation using CT-based airway mapping.
Time frame: Day 23 to Day 37 after the CAROL procedure
Accuracy will be assessed by comparing the planned device path (based on CT-based bronchial mapping) with the actual path and final position as observed in post-procedure CT imaging. The deviation between the planned and actual paths will be measured in millimeters in three-dimensional space by independent radiologists. Descriptive statistics (mean, standard deviation, and range) will be used to summarize the accuracy for each bronchial geometry type (e.g., lobar, segmental).
Time frame: Day 23 to Day 37 after the CAROL procedure
User feedback will be collected using a standardized questionnaire assessing device usability and operating handling characteristics, including perceived ease of use, catheter maneuverability, and procedural confidence. Responses will be summarized using descriptive analysis of response frequencies and thematic grouping of any free-text comments.
Contact information is provided by the study sponsor or research team.
Daniel Steinfort, MD, PhD
CONTACT
Jaeyoung Seo
CONTACT
Tau Medical Australia Pty Ltd
Industry
To Investigate the Safety of the CAROL Device for Lung Tumour Treatment in Patients With Non-small Cell Lung Cancer Tumours(s) ≤ 2 cm (cT1b)
OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.
View the official ClinicalTrials.gov record (opens in a new tab)This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.
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