View clinical trials related to Breast Biopsy.
Filter by:BACKGROUND AND CURRENT STATUS: Advancements in neoadjuvant systemic treatments (NST) for HER2 positive and triple-negative (TN) breast cancer (BC) subtypes have led to high rates of pathologic complete response (pCR), raising questions about the necessity of subsequent surgery, especially for those undergoing adjuvant radiotherapy. While Magnetic Resonance Imaging (MRI) remains the most effective imaging technique for assessing neoadjuvant treatment response, surgery is still required to confirm pCR in cases of almost complete or complete MRI response (iCR). To safely avoid surgery in these BC "exceptional responders," a technique with high negative predictive value is imperative. OBJECTIVE: This study aims to establish the diagnostic efficacy of image-guided vacuum-assisted biopsy (VAB) in assessing pathological complete response (pCR) after NST in HER2 positive or TN breast cancer subtypes, particularly those showing post NST-MRI complete or almost complete response. METHODS: A prospective study was conducted at "Hospital Universitario 12 de Octubre de Madrid" from June 25, 2018, to October 25, 2029. Twenty-five patients with HER2-positive or TN operable invasive ductal carcinoma (IDC) BC subtype, at stages cT1-3/N0-2 undergoing primary NST and showing complete or almost complete response on post NST-MRI, were enrolled. Ultrasound or stereotactic-guided vacuum-assisted biopsy (VAB) of the previous clip and tumor bed area was performed before surgery. VAB pathological results were compared with surgical pathological results to evaluate the diagnostic efficacy of predicting pCR with VAB after NST. Pathological representativeness of the VAB sample was ensured. pCR was defined as the absence of invasive ductal carcinoma and in situ ductal carcinoma.
This will be a single-center prospective randomized control trial that is Institutional Review Board (IRB) approved. The study plans to enroll 250 female patients presenting to the University of Alabama at Birmingham (UAB) for stereotactic biopsy. This study is a prospective and will target approximately 250 patients. This will be a HIPPA-compliant randomized control trial planned on spanning approximately six months' time. Patients will be entered into the study only based on their already scheduled stereotactic biopsy procedure. Patients will be informed of the study and they will be offered the opportunity to participate or not participate in the study. Their participation is completely voluntary. This study will not involve any intervention that is not already a part of standard care. Patients will be randomized to two groups, one group that will undergo clip placement with approximately with a 5 mm retraction of the biopsy clip post-placement and one that will involve no retraction prior to deployment.
Ultrasound-guided diffuse optical tomography (DOT) has demonstrated its potential role in differentiating malignant and benign breast abnormalities and in predicting and monitoring the neoadjuvant chemotherapy (NAC) response of breast cancer. This unique approach employs a commercial ultrasound (US) transducer and near infrared (NIR) optical imaging sensors mounted on a hand-held US probe. The co-registered US is used for lesion localization, and optical sensors are used for imaging tumor related vascularity.
Comparison of biopsy needles with a different diameter, i.e. 14 vs 16 gauge, used for breast biopsies