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Updated: Feb 14, 2026
Application of Laparoscopic Hepatectomy Combined with Intraoperative Microwave Ablation in Colorectal Cancer Liver Metastasis
Published on: March 3, 2023
Liver resection surgery versus thermal ablation for colorectal LiVer MetAstases (LAVA): study protocol for a
Kurinchi Gurusamy1, Neil Corrigan2, Julie Croft2
1Royal Free Campus, Division of Surgery and Interventional Science, University College London, 9th Floor, Royal Free Hospital, Rowland Hill Street, NW3 2PF, London, UK.
Background:
Although surgical resection has been considered the only curative option for colorectal liver metastases (CLM), thermal ablation has recently been suggested as an alternative curative treatment. A prospective randomised trial is required to define the efficacy of resection vs ablation for the treatment of colorectal liver metastases.
Methods:
Design and setting: This is a multicentre, open, randomised controlled non-inferiority trial design with internal pilot and will be performed in tertiary liver centres in UK and The Netherlands.
Participants:
Eligible patients will be those with colorectal liver metastases at high surgical risk because of their age, co-morbidities or tumour burden and who would be suitable for liver resection or thermal ablation.
Intervention:
Thermal ablation as per local policy.
Control:
Surgical liver resection performed as per centre protocol. Co-interventions: Further chemotherapy will be offered to patients as per current practice. Outcomes Pilot study: Same as main study and in addition patients and clinicians' acceptability of the trial to assist in optimisation of recruitment.
Primary Outcome:
Disease-free survival (DFS) at two years post randomisation.
Secondary Outcomes:
Overall survival, timing and site of recurrence, additional therapy after treatment failure, quality of life, complications, length of hospital stay, costs, trial acceptability, DFS measured from end of intervention.
Follow-Up:
24 months from randomisation; five-year follow-up for overall survival.
Sample Size:
330 patients to demonstrate non-inferiority of thermal ablation.
Discussion:
This trial will determine the effectiveness and cost-effectiveness of thermal ablation vs surgical resection for high-risk people with colorectal liver metastases, and guide the optimal treatment for these patients.
Trial Registration:
ISRCTN Registry, ISRCTN52040363 . Registered on 9 March 2016.
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