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Effectiveness of Microwave Ablation of Hepatocellular Carcinoma as Compared to Radiofrequency Ablation

Microwave Versus Radiofrequency Ablation for Hepatocellular Carcinoma: a Prospective Randomized Control Trial

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01340105
Enrollment
93
Registered
2011-04-22
Start date
2011-04-30
Completion date
2018-03-31
Last updated
2022-03-21

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

Conditions

Hepatocellular Carcinoma

Keywords

Microwave ablation, Radiofrequency ablation, Randomised controlled trial

Brief summary

The purpose of this study is to compare microwave ablation using the Acculis Microwave Tissue Ablation (MTA) System with conventional radiofrequency ablation (RFA) using Covidien cool-tip radiofrequency needle in patients with localized unresectabe hepatocelluar carcinoma (HCC). The investigators hypothesize that microwave ablation can achieve a better complete ablation rate as compared to radiofrerquency ablation. A randomized comparative study is performed by randomly assigned participants to microwave ablation arm or radiofrequency ablation arm. The efficacy of treatment outcome is assessed by the complete tumor ablation rate at 1 month, recurrence rate and survival time of participants. Safety of the procedures is also compared between the 2 treatment arms.

Interventions

PROCEDUREMicrowave ablation

Use of microwave energy to ablate hepatocellular carcinoma. It can be employed by percutaneous, open surgery or laparoscopic means.

PROCEDURERadiofrequency ablation

Use of radiofrequency energy to ablate hepatocellular carcinoma. It can be employed by percutaneous, open surgery or laparoscopic means.

Sponsors

Chinese University of Hong Kong
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Age \>18 years * Unresectable hepatocellular carcinoma (HCC) and tumor amendable for local ablation * Resectable HCC but patient opts for local ablation * Maximum diameter of tumor ≤6cm * Maximum number of tumor nodules ≤3 * Absence of radiology evidence of major vascular or bile duct invasion * Child's A or B liver function * Karnofsky performance status ≥70%

Exclusion criteria

* Informed consent not available * Pregnant female patients * Tumors unfavourable for local ablation (e.g. tumor close to porta hepatis) * HCC with history of rupture * Concomitant hepatectomy * Patients with chronic renal failure

Design outcomes

Primary

MeasureTime frameDescription
Complete ablation rate1 monthMeasure by post-ablation Computed Tomography (CT) with reference to alpha-fetoprotein (AFP)

Secondary

MeasureTime frameDescription
Recurrent disease3 yearIt is defined as the imaging detected new lesions
Survival3 yearOverall and disease-free survival
Treatment related mortality30-dayMortality within 30 days after operation
Treatment related morbidity30-dayComplications related to the treatment received
Hospital stay30-dayTotal length of hospital stay (days)
Long-term liver function3 yearMonitoring of liver function test result and the occurrance of decompensated cirrhosis

Countries

China

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026