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NCT Number: NCT06869122

Bronchoscopic Microwave Ablation of Lung Tissue in Surgical Candidates - UK

This study involves the use of a medical device, the Creo Medical MicroBlate Flex instrument, to heat and destroy lung tumour cells using microwave energy (this is also called ablation). In this study, the investigators are investigating whether the ablation instrument can be used effectively to treat lung tumours or tumours that have spread to the lungs. If successful, using this technology may mean future patients may not need to undergo surgical removal of these types of lung tumours.

The aim of this study is to evaluate the safety and performance of the MicroBlate Flex instrument in treating individuals with cancerous lung tumours that are due to be removed by surgery. All participants in the study will undergo the microwave ablation procedure, which is a separate and additional procedure to their surgical procedure.

The study, funded by Creo Medical, will be conducted at sites in the UK and Italy, and will involve up to 18 participants.

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Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Observational

Primary location

Istituto Europeo di Oncologia (IEO), Via Ripamonti 435, Milan, Italy

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About this study

Participation (approximately 2 months) in this study, will include a screening visit, a bronchoscopy procedure that includes the microwave ablation treatment, and the planned surgical removal of the lung tumour 7 to 21 days after the ablation.

There are 2 follow-up visits, one at 7 days after the ablation treatment, the second just before the planned surgical procedure. After surgery, patients will be monitored according to the hospital's routine clinical practice. Participation in the research study ends once the patient is discharged from hospital.

Participation in this study has the potential to provide the following benefits for other people who have the same medical condition:

  • The option of choosing microwave ablation as an alternative treatment for lung tumours and avoiding a major surgical procedure.
  • Shorter patient recovery times.
  • Reduced incidence of complications.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

Patients who:

  • Have signed informed consent.
  • Subject is willing and able to comply with all aspects of the treatment and evaluation schedule.
  • Are ≥ 18 years old.
  • Have lung lesion(s)/nodule(s) which are histopathological confirmed as cancer.
  • Have soft tissue lung lesion(s):
  • ≤ 20 mm in the largest dimension of the pulmonary window
  • Are candidates for surgical resection as determined by a multi-disciplinary team (MDT) or tumour board.
  • > 10 mm of tumour-free lung parenchyma between target tumour and pleura or fissure.
  • Subject is willing and able to comply with the study protocol requirements.
  • Are assigned an ASA (American Society of Anaesthesiologists) score of ≤ 3 or the patient is deemed fit for general anaesthesia.

Exclusion criteria

Patients who:

  • Have target nodule(s) within the International Association for the Study of Lung Cancer (IASLC) "Central Zone" (including bronchial tree, major vessels, heart, oesophagus, spinal cord, and phrenic & laryngeal nerves).
  • Are pregnant or breast feeding, as determined by standard site practices.
  • Have participated in an investigational drug or device research study within 30 days of enrolment that would interfere with this study.
  • Have a physical or psychological condition that would impair study participation or jeopardise the safety or welfare of the subject.
  • Have an expected survival less than 12 months.
  • Have an implantable device, including pacemakers or other electronic implants.
  • Have known pulmonary hypertension (PASP [pulmonary artery systolic pressure] >50mmHg).
  • Subject had a prior pneumonectomy.
  • Diagnosis of Small Cell Lung Cancer.
  • Subject had a therapeutic intervention (e.g., SBRT) within same lobe as the target lesion.
  • Subjects currently undergoing or underwent chemotherapy, systemic immunosuppressive treatment, or radiotherapy within 3 months of planned Study procedure.

Treatment and study plan

ablation

Device

Bronchoscopy and microwave ablation of the lung tumour prior to surgical resection.

Primary outcomes

  1. Safety of the MicroBlate Flex AB1 system in lung tumour ablation

    Time frame: Up to 21 days after the ablation procedure

    Identification of serious device-related adverse events associated with the delivery of microwave energy by the AB1 system from ablation (Day 0) up to the first surgical incision for the resection (Day 7-21)

  2. Technical Success and Performance of the AB1 instrument

    Time frame: Up to 28 days post ablation procedure

    Initial technical success, defined as successful bronchoscopic access by the AB1 instrument of the target tissue, delivery of the scheduled microwave energy to the target tissue (per pre-specified target) and confirmed ablation as evidenced by macroscopic assessment post-surgical resection of the ablated lesion

Secondary outcomes

  1. Assessment/visualization/quantification of the dimensions of the ablated tissue including assessment of margin relative to lesion

    Time frame: Up to 1 week post surgical resection procedure

    Dimensions of the ablated tissue to confirm, correct or add to the IFU-reported relationship between AB1 ablation time and dimensions and volume of the ablated tissue, per pre-specified target

  2. Assessment/visualization/quantification of the dimensions of the ablation observed within the post-ablation CT

    Time frame: Up to 1 week post ablation procedure

    Dimensions of the ablated tissue as evidenced on the post-ablation CT

  3. Procedural Time

    Time frame: Up to 1 week post ablation procedure

    Procedural time to be captured in the electronic case report form

  4. Assessment of ease of system use (Clinician Questionnaires)

    Time frame: Up to 1 week post ablation procedure

    Questionnaires to be completed by clinicians following each procedure, rating their responses on a Likert scale of 1 to 7, with 1 being "extremely clear/easy" and 7 being "extremely difficult"

Other outcomes

  1. Assessment of immunological response following microwave ablation procedure

    Time frame: Up to 28 days post ablation procedure

    Immunological response, as determined by change from baseline to pre-surgical resection in immunological and inflammatory blood markers

Study contacts

Contact information is provided by the study sponsor or research team.

Annie Goulding

CONTACT

[email protected]

+44 1291 606 005

Charlie Campion

CONTACT

[email protected]

+44 7939 600137

Sponsors and collaborators

Lead sponsor

Creo Medical Limited

Industry

Registry information

Official study title

Assessment of the Safety and Performance of the AB1 Electrosurgical System for Bronchoscopic Microwave Ablation of Lung Tissue in Surgical Candidates - UK

Acronym: AB1MALTISC-UK

Important dates

Study start
2025
Primary completion
2026
Study completion
2026
First posted
Mar 11, 2025
Registry last updated
Apr 21, 2026

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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