Skip to content

CIRSE Emprint Microwave Ablation Registry

CIRSE Emprint Microwave Ablation Registry

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT03775980
Acronym
CIEMAR
Enrollment
500
Registered
2018-12-14
Start date
2019-09-04
Completion date
2026-01-31
Last updated
2026-05-13

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

Conditions

Colorectal Neoplasms Malignant, Neoplasm Metastasis

Brief summary

Observation of the clinical use of the Emprint Microwave Ablation System for the ablation of Liver Metastases of Colorectal Adenocarcinoma.

Detailed description

The CIRSE Emprint Microwave Ablation Registry (CIEMAR) is collecting real-life data on the microwave ablation (MWA) of colorectal liver metastatic disease using the Emprint Microwave Ablation System (full study duration) or Emprint HP Microwave Ablation System (from 2021 onwards). CIEMAR is a prospective, single-arm, multi-centre observational (non-interventional) study with the objective to observe the "real-life" use of MWA in Europe. The study is observing the use of the Emprint or Emprint HP Microwave Ablation System and all patients included in CIEMAR are receiving treatment with this device as their standard care for CRLM. Primary endpoint: local tumour control in liver at 12 months after MWA on a per lesion basis Secondary endpoints: Safety; Overall survival; Overall disease-free survival; Hepatic disease-free survival; Time to untreatable progression by thermal ablation; Systemic cancer therapy vacation; Quality of life; Adverse events and toxicity In order to measure changes in the quality of life of enrolled patients at different moments in time before and after treatment with MWA, CIEMAR is collecting quality of life data using the EORTC QLQ-C30 questionnaire. Filling out the quality-of-life questionnaire is entirely voluntary for the patient. The patient will be offered to fill out the questionnaire in his/her mother tongue. The site and patient recruitment is complete with 500 patients from 30 sites across 11 European countries. The registry is currently collecting follow-up data (until January 2026).

Interventions

DEVICEEmprint Microwave Ablation System

Microwave Ablation of colorectal liver metastases

Sponsors

Cardiovascular and Interventional Radiological Society of Europe
Lead SponsorOTHER
Medtronic
CollaboratorINDUSTRY

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to 99 Years
Healthy volunteers
No

Inclusion criteria

* 18 years or older * Proven colorectal liver metastases either histologically proven or diagnosed by imaging in a patient with known colorectal cancer * Treated with the Emprint or Emprint HP Microwave ablation system * Patient referred to MWA by a multidisciplinary tumour board * Signed informed consent form * Intention to completely treat (ablation, resection, SBRT) all visible disease within 8 weeks * Maximum number of 9 total liver lesions * All liver lesions must be local treatment-naive * Maximum diameter of the largest liver lesion treated with MWA must not exceed 3cm * Maximum diameter of lesions treated surgically may exceed this limitation * Maximum number of 5 lung nodules eligible to be treated * Patients may receive simultaneous liver resection and microwave ablation * Patients may have received previous systemic therapy * Patients must not have received surgical resection or thermal ablation for other liver lesions in the last 3 months before inclusion * Patients treated with a liver-first approach may be included if treatment of the primary tumour is planned * If applicable: complete response of treated rectal tumour proven by imaging

Exclusion criteria

* Life expectancy less than 6 months (palliative treatment) * Extrahepatic metastases with the exception of a maximum of 5 lung nodules * Ongoing infection (viral/bacterial) * Patients receiving simultaneous bowel surgery and microwave ablation * Patients receiving simultaneous IRE, RFA, SBRT, Cryoablation, HIFU or other local treatment than resection * Pregnancy * Patients with liver metastases that cannot be completely and safely treated * Active cancers other than CRC * Non-resected primary colon cancer * Advanced liver disease or evidence of liver insufficiency

Design outcomes

Primary

MeasureTime frameDescription
Local Tumor Control12 monthsLocal Tumor Control at 12 months on a per lesion basis

Secondary

MeasureTime frameDescription
Number of participants with acute and/or chronic adverse events according to the latest version of CTCAE3 yearsSafety and Tolerability will be monitored before, during and after the microwave ablation treatment.
Overall survival3 yearsTime from observation until death due to any cause (or censoring)
Overall disease-free-survival3 yearsTime from observation until disease progression or death assessed by the investigators
Hepatic disease-free-survival3 yearsTime from observation until disease progression in the liver or death assessed by the investigators.
Time to untreatable progression by thermal ablation3 yearsTime from the treatment to the point when liver malignancies can no longer be treated by thermal ablation.
Systemic cancer therapy vacation3 yearsTime that participants can be removed from systemic cancer therapies following the microwave ablation treatment.
Treatment specific quality of life1 yearTreatment specific quality of life will be assessed using the EORTC-QLQ-C30 questionnaire which includes 28 questions on a scale of 1 to 4 where 1 indicates lower impact of the disease on the patient's quality of life and 4 represents a high impact. Additionally 2 questions using a scale form 1 to 7 are used to generally assess the patient's quality of life where 1 represents poor quality of life and 7 represents an excellent quality of life.

Countries

Croatia, Denmark, France, Germany, Greece, Italy, Lithuania, Netherlands, North Macedonia, Norway, Portugal, Spain, Turkey (Türkiye)

Contacts

STUDY_CHAIRPhillippe L. Pereira, PhD

Radiology, Minimally Invasive Therapies and Nuclear Medicine at SLK Clinics Heilbronn GmbH, Germany

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 8, 2026