Active clinical trials for "Breast Neoplasms"

Previous clinical studies with the MarginProbe (MP) system demonstrated the MP System diagnostic accuracy for identification of cancerous/abnormal tissue at the margins (≤ 1mm) of the ex-vivo lumpectomy specimen. The current study is a prospective data collection study with the enhanced technology, the MP2.0 System and is aimed at collecting data to optimize the system algorithm/procedure and to subsequently validate the system to demonstrate non-inferiority to the MP1.x system. In this study, MP2.0 system will be used on ex-vivo lumpectomy specimens at the Operating Room (OR). The study will collect a library of case information data using the MP2.0 system in sequential cohorts of a minimum of 50 subjects until the software and procedure are optimized. The final analysis sample size will be determined and outlined in the SAP based upon the results of the optimization stage.

The main purpose of this study is to evaluate the quality of life of premenopausal participants with Hormone Receptor (HR) positive and Human Epidermal Growth Factor Receptor-2 (HER2) negative breast cancer who are receiving, in addition to triptorelin, an endocrine cancer treatment. The study will also get more information about: - the effectiveness and safety of triptorelin; - the relationship that could exist between the characteristics of the disease and the treatment chosen by the Investigator.

RATIONALE: According to previous results from PHARE study, a subgroup of patients with low-risk cancer (< 3 cm) without axillary lymph node involvement or small (< 2 cm) with minimal lymph node involvement (1 positive node) presented low risk of recurrence. Maintaining chemotherapy in this subgroup could cause toxicity and it is not yet known whether giving trastuzumab as monotherapy in neoadjuvant setting is as effective as giving trastuzumab combined with paclitaxel in patients with low risk early breast cancer. PURPOSE: This randomized phase III trial is studying trastuzumab as monotherapy in neoadjuvant setting to see if this treatment regimen is as efficient compared to trastuzumab combination with paclitaxel chemotherapy in treating women with low risk (tumor size< 3 cm, N0) early breast cancer.

Due to high pathological complete remission (pCR) rates in both breast and lymph nodes (ypT0/Tis, ypN0) following neoadjuvant systemic therapy (NST) in many patients with initially clinically node-positive (cN+) breast cancer, the standard treatment of the axilla has changed from axillary lymph node dissection (ALND), which is associated with high morbidity, to less invasive, surgical approaches. In several studies, targeted axillary dissection (TAD) has presented with false-negative rates (FNRs) less than 5%, however, in patients with high initial lymph node involvement (≥ 3 clinically suspicious lymph nodes) TAD has not been thoroughly investigated. The present prospective registry study aims to evaluate the FNR of TAD in patients with ≥ 3 initially suspicious lymph nodes and clinically node-negative status (ycN0) after NST in comparison to ALND.

In this study the characteristics and alterations of the gut microbiome during neoadjuvant therapy for HER2-positive breast cancer patients are studied, as well as the relation between the gut microbiome and probability of pCR.

An international multicenter study to prospectively validate the association between sonographic GTC and subsequent breast cancer risk in women with dense breasts.

The incidence of homologous recombination deficiency in metastatic triple negative breast cancer was 52%-59%，PARP plays a key role in sensing DNA damage and converting it into intracellular signals that activate the base excision repair (BER) and single-strand break repair pathways. Treatment with PARP inhibitors could represent a novel opportunity to selectively kill a subset of cancer cells with deficiencies in DNA repair pathways. This is a multicenter, single-arm, phase II study evaluating the efficacy and safety of niraparib in patients with HRD positive metastatic triple negative breast cancer.

This is a prospective, randomized, controlled trial for evaluating the efficacy of addition of transversus thoracic muscle plane block to pectoral nerves block versus pectoral nerves block for quality of recovery scores in breast cancer surgery.

This is an open, multicenter, randomized controlled clinical study aimed to explore the efficacy and safety of chidamide combined with exemestane (+/- goserelin) versus chemotherapy in the neoadjuvant treatment of stage II-III HR +/HER2- breast cancer patients with poor response to previous chemotherapy.

This randomized Phase III study aims to show major complication rate of hypofractionation radiation therapy is not inferior, compared to conventional fractionation radiation therapy in breast cancer patients undergoing mastectomy and reconstruction surgery.