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Spots Global Cancer Trial Database for Trial of Ablation of Small Hepatocellular Carcinomas in Patients of Cirrhosis

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Trial Identification

Brief Title: Trial of Ablation of Small Hepatocellular Carcinomas in Patients of Cirrhosis

Official Title:

Study ID: NCT01438437

Interventions

PAI
RFA

Study Description

Brief Summary: The purpose of this study is to assess the efficacy of Radiofrequency ablation (RFA) and percutaneous acetic acid ablation (PAI) in the management of small hepatocellular carcinoma (HCC) in patients of cirrhosis of liver.

Detailed Description: Setting The study would be conducted at the All India Institute of Medical Sciences, New Delhi, a tertiary care teaching hospital, in the departments of Gastroenetrology and Radiodiagnosis. Sample size Taking RFA as a standard procedure with an estimated success rate of 95%, a sample size of minimum 27 for each arm is required to detect an equivalence difference of 10%, assuming that PAI has a success rate of 85%. This sample size is expected to provide a power of 80%. Randomization * Stratified randomization of Child A and B will be done. * Randomization into A (Acetic acid) and B (Radiofrequency ablation) will be done. Diagnostic criteria * Cirrhosis of liver- Diagnosis will be founded on the basis of clinical, biochemical, imaging and endoscopy findings. Hepatocellular carcinoma- when any one of the following is present 1. Two imaging modalities (dual phase CT (DPCT)/ contrast enhanced Magnetic Resonance Imaging (MRI)) showing arterialization of the hepatic mass 2. AFP more than 400ng/ml along with arterialisation on one imaging modality (DPCT/ contrast enhanced MRI) 3. Fine needle aspiration cytology (FNAC) Definitions 1. Local recurrence : When the Triple phase CT shows- * An area of nodular enhancement that abuts or surrounds the ablation defect or protrudes into the low attenuating necrotic tissue (may sometimes be seen only on arterial phase of CT) * Recurrent soft tissue causing distortion of the otherwise smooth interphase with the adjoining liver parenchyma. 2. Fresh lesion- When a new lesion is seen in the liver at a site other than the primary site of the treated lesion with normal liver parenchyma intervening in between will be considered as a fresh lesion. 3. Residual disease or incomplete ablation When the follow up Triple phase CT shows- * Residual nodular enhancement that abuts or surrounds the low attenuating ablation defect or protrudes into the low attenuating necrotic tissue (may sometimes be seen only on arterial phase of CT) * Residual soft tissue causing distortion of the otherwise smooth interphase with the adjoining liver parenchyma. * Concenteric hyperemia around the low attenuating defect showing area of focal nodularity or asymmetric thickness. 4. End point of ablation When the Triple phase CT shows- * A homogenous, well defined, uniformly low attenuating defect larger than the pretreatment size. * No residual soft tissue seen within or at the periphery of the low attenuating defect * Concentric hyperemia around the low attenuating defect of uniform thickness with no focal nodularity. Follow up 1. Clinical follow up * All patients would be followed up in the Liver clinic monthly unless their clinical condition warrants earlier follow up * Liver function tests/ complete blood count would also be done at each visit and Alfafetoprotein (AFP) every six months * Patient tolerance, child's status would be estimated. 2. Imaging follow up * At one month, a dual phase CT would be done to ascertain the local response to therapy and the need to repeat the procedure. After achieving the end point after ablation (PAI and RFA, the DPCT would be done at 3 and 6 monthly intervals. Duration of follow up - Since more than 80% recurrence occurs in 2 years therefore the duration of follow up would be 2 years after ablation.

Eligibility

Minimum Age: 12 Years

Eligible Ages: CHILD, ADULT, OLDER_ADULT

Sex: ALL

Healthy Volunteers: No

Locations

AIIMS, New Delhi, Delhi, India

Contact Details

Useful links and downloads for this trial

Clinicaltrials.gov

Google Search Results

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