Clinical trial NCT06288620: Microwave Ablation in the Treatment of Early-stage Unifocal Invasive Breast Cancer
Official title: A Prospective, Open-label, Single-arm Phase II Clinical Study to Evaluate the Efficacy and Safety of Microwave Ablation in the Treatment of Early-stage Unifocal Invasive Breast Cancer
Study type: INTERVENTIONAL
Overall status: RECRUITING
Phase: NA
Conditions: Breast Cancer
Keywords: Ablation
Lead sponsor: The First Affiliated Hospital with Nanjing Medical University
Sponsor class: OTHER
First posted: 2024-03-01
Enrollment: 77
Sex: FEMALE
Minimum age (years): 18
Maximum age (years): 70
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: NA
Intervention model: SINGLE_GROUP
Primary purpose: TREATMENT

Brief summary: Microwave Ablative (MWA) therapy, as a minimally invasive thermal therapy, has been attempted to treat breast cancer of small lesions . However, the optimal indications for MWA in the treatment of breast cancer is unknown. This prospective, open-label, single-arm phase II clinical study was conducted to evaluate the efficacy and safety of MWA in the treatment of early-stage unifocal invasive breast cancer, and to explore the immune activating effect.


Eligibility criteria: Inclusion Criteria:

1. female patients aged 18-70 years;
2. patients with newly diagnosed invasive breast cancer confirmed by core needle biopsy;
3. the tumor smaller than 2cm in greatest diameter confirmed by US (ultrasonography), breast X-ray and breast MRI (contrast-enhanced magnetic resonance image ) were performed at the same time, and the difference of the largest diameter between breast US and MRI was less than 0.5 cm;
4. the single tumor without other suspicious lesions (BI-RADS (the Breast Imaging Recording and Data System) score ≥4) evaluated by breast US, X-ray and MRI;
5. the tumor without adhesion to chest wall, nipple or skin;
6. patients without distant metastasis;
7. Karnofsky performance status greater than 70%.

Exclusion Criteria:

1. multicentric or multifocal breast tumor;
2. the tumor located on nipple and areola area;
3. signs of extensive intraductal carcinoma on imaging examination (diffuse malignant calcification on breast X-ray or segmental distribution, non-mass enhancement, ductal or linear enhancement \> 2.5 cm on MRI);
4. extensive intraductal component in invasive cancer (more than 50% of the tumor volume) confirmed by pathology;
5. invasive lobular carcinoma, metaplastic carcinoma or carcinoma with sclerosing adenosis;
6. patients who were pregnant or breastfeeding;
7. patients with evidence of coagulopathy, chronic liver diseases or renal failure;
8. patients with previous treatment including chemotherapy, targeted drug therapy, or local radiation therapy, etc;
9. patients with substance abuse, or mental or psychological disorders that may interfere with study compliance;
10. any condition that is unstable or likely to compromise the patient's safety and compliance;
11. patients enrolled in other clinical trials;
12. diseases or symptoms that other investigators consider unsuitable for participation.

Primary outcomes:
measure: Complete ablation rate
timeFrame: 1 day
Secondary outcomes:
measure: Safety of microwave ablation
timeFrame: 10 days
Other outcomes:
Locations:
city: Nanjing
country: China
facility: the First Affiliated Hospital of Nanjing Medical University
state: Jiangsu
Study officials:
References: