0/360 (0%)
Unresectable colorectal liver metastases:
Stereotactic body radiotherapy VS Microwave ablation:
a phase II prospective randomized controlled trial for intermediate-size (3 – 5 cm) colorectal liver metastases
The primary objective of this study is to compare efficacy of MWA to the efficacy of SBRT with regards to the primary endpoint (local tumour progression free survival at 1 year [1- year LTPFS]) in patients with unresectable CRLM (3 – 5 cm) that are unsuitable for surgery due to either comorbidities, a history of extensive abdominal surgery, a poor performance status or due to a certain unfavourable anatomical location of the tumour.
SBRT or MWA. The panel, consisting of at least two interventional radiologists, two hepatobiliary surgeons and two radiation oncologists, will appoint lesions of 3-5cm that are unresectable and suitable for both MWA and SBRT, as target lesions. All lesions that are not suitable for ablation should be resectable and all unresectable lesions <3cm should be suitable for thermal ablation
Screening must be performed no longer than 6 weeks prior to study inclusion. Subjects are eligible if they meet the following criteria: Histological documentation of primary colorectal tumour; 1-3 unresectable CRLM size 3-5 cm eligible for both MWA and SBRT (target lesions); Additional CRLM are allowed if considered either resectable or ablatable and <3cm No or limited extrahepatic disease (1 extrahepatic lesion is allowed, not including positive para-aortal lymph nodes, celiac lymph nodes, adrenal metastases, pleural carcinomatosis or peritoneal carcinomatosis); For subjects with liver only disease the maximum number of CRLM is 10; for subjects with limited extrahepatic disease the maximum number of CRLM is 5; Prior focal liver treatment is allowed Subjects without prior focal liver treatment should be either unsuitable for 1st line chemotherapy or have progressed under/after 1st -line chemotherapy; Subjects with recurrent (either local or distant-hepatic) CRLM after previous focal treatment should be unsuitable for (further) systemic therapy (further downsizing or conversion to resectable disease improbable); Resection for resectable lesions considered possible obtaining negative resection margins (R0) and preserving adequate future liver remnant (FLR); Age >18 years; Written informed consent
Subjects who meet the following criteria at the time of screening will be excluded: No target lesions suitable for both MWA and SBRT; Radical treatment unfeasible or unsafe (e.g. insufficient FLR); Compromised liver function (e.g. signs of portal hypertension, INR > 1,5 without use of anticoagulants, ascites); Pregnant or breast-feeding subjects; Immunotherapy ≤ 6 weeks prior to the procedure; Chemotherapy ≤ 6 weeks prior to the procedure; Severe allergy to contrast media not controlled with premedication;
| International Clinical Trial Registry Platform (ICTRP) nummer: | CTIS2024-515341-41-01 |
|---|---|
| EU Clinical Trials Register (EUCT): | 2024-515341-41-01 |
| Centrale Commissie Mensgebonden Onderzoek (CCMO): | NL78220.029.22 |