Comparison of Microwave Ablation With Cryoablation for Breast Tumor

Comparison of Ultrasound Guided Percutaneous Microwave Ablation With Cryoablation for Breast Tumor

The investigators will perform this study to prospectively compare the clinical outcome after percutaneous microwave ablation(MWA) and cryoablation of benign and malignant breast lesion under ultrasound (US) guidance.

Study Overview

• Status: Unknown
• Conditions: Breast Tumor; Microwave Ablation; Cryoablation
• Intervention / Treatment: Procedure: microwave ablation

Detailed Description

A total of more than 200 patients diagnosed with benign breast lesions and 50 patients with malignant breast lesions in two centers of China will be recruited in this study and underwent US-guided percutaneous MWA and cryoablation treatment. Information for each patient includes demographics; longest diameters of tumors; tumor numbers; tumor pathological type; location of tumor according to whether adjacent to skin, pectoralis, areola and papilla. Ablation variables including session, puncture, time, and power; complete ablation, complications; reduction in volume, palpability, pain and cosmetic satisfying outcomes,recurrence,survival will be compared and analyzed.

• Study Type: Interventional
• Enrollment (Anticipated): 250
• Phase: Not Applicable

Contacts and Locations

Study Locations

• China
  • Beijing
    • Beijing, Beijing, China, 100853
      • Recruiting
      • Chinese PLA General Hospital

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Child; Adult; Older Adult
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: Female

Description

Inclusion Criteria:

• (a) the breast tumor obtained the pathological diagnosis by using core-needle biopsy; (b) for the benign lesion, continually increasing during a half year followup,with the symptoms of local pain, discomfortable or compression considered probably relating to the mass of breast; the patient with evidently psychological pressure due to the occurrence of the BBL despite clearly benignancy on imaging; (c) for the malignant lesion, with the tumor size smaller than 2cm and without other metastasis.

Exclusion Criteria:

• (a) the patients who were pregnant or breast-feeding; (b) the patients with evidence of coagulopathy or acute or severe pulmonary insufficiency or heart dysfunction; (c) the patients during menstrual period; (d) the patients referring to other therapies including surgical excision and vacuum-assisted biopsy.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Non-Randomized
• Interventional Model: Parallel Assignment
• Masking: None (Open Label)

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: microwave ablation; Microwave ablation（MWA）refers to all electromagnetic methods of inducing tumor destruction by using devices with frequencies greater than or equal to 900MHz. The rotation of dipole molecules accounts for most of the heat generated during MWA. Water molecules as dipoles attempt to continuously reorient at the same rate in microwave's oscillating electric field. As a result of microwave transmission, the water molecules flip back and forth billions of times a second. The vigorous movement of water molecules produce friction and heat, thus inducing cellular death via coagulation necrosis. The microwave unit (KY-2000, Kangyou Medical, Nanjing, China) is capable of producing 100 Watts of power at 2450 MHz.The needle antenna has a diameter of 1.6 mm (16G) and a length of 10 cm. The active tip length is 3mm and 5mm.	Procedure: microwave ablation; Microwave ablation and cryoablation are both thermal ablation techniques for minimally invasive treatment of breast tumor. They are performed percutaneously by ultrasound guidance.The tumor can be completely killed without injurying adjacent tissue.; Other Names: cryoablation
Active Comparator: cryoablation; Clinically, cryosurgery is accomplished by placing a cryoprobe(up to 3.5 mm) through a stab incision into the tumor under ultrasound guidance.Liquid nitrogen is utilized under low operating pressure as cryogen which is controlled by the computer modulated cryogen regulator. The cryoprobe achieves rapid freezing by means of an active freeze zone at its distal tip.	Procedure: microwave ablation; Microwave ablation and cryoablation are both thermal ablation techniques for minimally invasive treatment of breast tumor. They are performed percutaneously by ultrasound guidance.The tumor can be completely killed without injurying adjacent tissue.; Other Names: cryoablation

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
overall survival		5 year
volume reduce rate	divide the volume of ablation zone by unablated lesion volume	3 year

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
local tumor progress	any nodular occurence adjacent to the ablation zone during the follow-up	5 year
metastasis	any nodular occurence keeping away from the ablation zone during the follow-up	5 year
complication	numbers of participants with side effect and major complications	5 year

Collaborators and Investigators

• Sponsor: Chinese PLA General Hospital

Study record dates

Study Major Dates

• Study Start (Actual): January 1, 2016
• Primary Completion (Anticipated): December 31, 2018
• Study Completion (Anticipated): December 31, 2018

Study Registration Dates

• First Submitted: August 8, 2017
• First Submitted That Met QC Criteria: September 15, 2017
• First Posted (Actual): September 18, 2017

Study Record Updates

• Last Update Posted (Actual): September 18, 2017
• Last Update Submitted That Met QC Criteria: September 15, 2017
• Last Verified: September 1, 2017

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Skin Diseases; Neoplasms; Neoplasms by Site; Breast Diseases; Breast Neoplasms
• Other Study ID Numbers: 66939530yj

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No