Cryosurgery in Treating Patients With Unresectable Liver Metastases From Colorectal Cancer
|First Received Date ICMJE||November 1, 1999|
|Last Updated Date||February 6, 2009|
|Start Date ICMJE||August 1997|
|Primary Completion Date||Not Provided|
|Current Primary Outcome Measures ICMJE||Not Provided|
|Original Primary Outcome Measures ICMJE||Not Provided|
|Change History||Complete list of historical versions of study NCT00002997 on ClinicalTrials.gov Archive Site|
|Current Secondary Outcome Measures ICMJE||Not Provided|
|Original Secondary Outcome Measures ICMJE||Not Provided|
|Current Other Outcome Measures ICMJE||Not Provided|
|Original Other Outcome Measures ICMJE||Not Provided|
|Brief Title ICMJE||Cryosurgery in Treating Patients With Unresectable Liver Metastases From Colorectal Cancer|
|Official Title ICMJE||Phase II Trial of Cryoablation for Treatment of Unresectable Colorectal Hepatic Metastases|
RATIONALE: Cryosurgery for liver metastases may have fewer side effects and improve recovery.
PURPOSE: Phase II trial to study the effectiveness of cryosurgery for patients with unresectable liver metastases from colorectal cancer.
OBJECTIVES: I. Evaluate the feasibility of conducting a multi-institutional clinical study of cryosurgery for liver metastases. II. Evaluate the morbidity and mortality of cryosurgery for liver metastases when applied in a multi-institutional setting. III. Evaluate the efficacy of cryosurgery for liver metastases as measured by total liver control, local lesion control, and overall survival.
OUTLINE: This is a multi-institutional study. Patients are first confirmed by exploratory laparotomy to have no extrahepatic metastases. They then undergo biopsy of the portal lymph node, after which, full mobilization of liver is recommended. Cholecystectomy is optional but recommended for treatment of tumors adjacent to the gallbladder. After mapping out the location and size of the metastatic tumor by ultrasound, cryoablation of the metastases is carried out. Cryoablation involves the delivery of nitrogen through metallic probes placed surgically into the center of the liver metastases. There are two freeze and thaw cycles for each lesion with synchronous intraoperative ultrasound monitoring of the cryoablation. One centimeter margin of cryoablation is determined by this ultrasound image. Treatment of the liver with regional chemotherapy is not allowed until radiographic and pathologic confirmation of disease progression in the liver. Follow-up is at 3 weeks after surgery and then every 3 months.
PROJECTED ACCRUAL: There will be a maximum of 45 patients accrued in approximately 3 years for this study. This is a two stage accrual design in which 17 patients are first accrued of which 15 should be eligible. If fewer than 11 of the initial 15 eligible patients show no evidence of disease at 3 months, the study stops and treatment is abandoned. If at least 11 patients show no evidence of disease, then 28 additional patients are accrued.
|Study Type ICMJE||Interventional|
|Study Phase||Phase 2|
|Study Design ICMJE||Primary Purpose: Treatment|
|Intervention ICMJE||Procedure: cryosurgery|
|Study Arm (s)||Not Provided|
|Publications *||Not Provided|
* Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
|Recruitment Status ICMJE||Completed|
|Enrollment ICMJE||Not Provided|
|Completion Date||Not Provided|
|Primary Completion Date||Not Provided|
|Eligibility Criteria ICMJE||
DISEASE CHARACTERISTICS: Histologically confirmed primary colorectal adenocarcinoma with synchronous and metachronous metastases to liver 1 to 5 liver metastases demonstrated by rapid sequence CT scan or Feridex-enhanced MRI within 2 weeks of registration CT portography not required No single metastasis greater than 6 cm Maximum liver involvement must not be more than 40% by volume No extrahepatic metastases
PATIENT CHARACTERISTICS: Age: 18 and over Performance status: ECOG 0-2 Hematopoietic: Platelet count greater than 80,000/mm3 Prothrombin time less than 15.0 seconds Hepatic: Bilirubin less than 2.0 mg/dL Renal: Not specified Other: Must be disease free for at least 5 years except for treated basal cell or squamous cell skin cancer
PRIOR CONCURRENT THERAPY: Biologic therapy: Not specified Chemotherapy: Prior chemotherapy allowed No concurrent regional chemotherapy allowed Endocrine therapy: Not specified Radiotherapy: Not specified Surgery: Not specified
|Ages||18 Years and older|
|Accepts Healthy Volunteers||No|
|Contacts ICMJE||Contact information is only displayed when the study is recruiting subjects|
|Location Countries ICMJE||United States|
|NCT Number ICMJE||NCT00002997|
|Other Study ID Numbers ICMJE||CDR0000065545, ECOG-1296|
|Has Data Monitoring Committee||Not Provided|
|Responsible Party||Not Provided|
|Study Sponsor ICMJE||Eastern Cooperative Oncology Group|
|Collaborators ICMJE||National Cancer Institute (NCI)|
|Information Provided By||National Cancer Institute (NCI)|
|Verification Date||March 2004|
ICMJE Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP