Active clinical trials for "Breast Neoplasms"

Population-based randomized controlled trial carried out in two Swedish counties, Dalarna and Ostergotland to find out the impact of early detection on mortality from breast cancer.

The estrogen-dependent nature of breast cancer was first reported in 1896 with the publication of George Beatson's observations on the regression of breast cancer following oophorectomy. Endocrine therapy, targeting ER either directly by selective estrogen receptor modulators (SERMs) and pure antagonists or indirectly by aromatase inhibitors (AIs) that block estrogen production, remains the mainstay of treatment of hormone-sensitive breast cancer in the adjuvant and metastatic settings. Intrinsic (de novo) and acquired endocrine resistance constitutes an important clinical challenge in the treatment of breast cancer and multiple mechanisms are suspected to underlie the emergence of endocrine resistance. The role of the estrogen receptor (ER), encoded by the ESR1 gene, in normal mammary gland development and the progression of breast cancer is well established. ESR1 mutations, occurring in 10 to 30% of ER-positive metastatic breast cancer resistant to AIs, lead to ligand-independent activation of the ER. For patients treated with AIs, monitoring of circulating tumour DNA (ctDNA) for ESR1, PIK3CA and AKT1 mutations could permit early detection of resistance to AIs as recently reported during 2016 American Society of Clinical Oncology (ASCO) meeting.

Researchers are trying to learn more about the prevalence of genetic mutations in women who are at intermediate/high risk of breast cancer and how that information my assist providers in improving screening and preventative options.

Patients scheduled for mastecotmy will be randomized to receive either an ultrasound-guided double space paravertebral block or a PECSII + parasternal block. In both groups, blocks will be performed with 20 ml of ropivacaine 0.75%, plus ropivacaine 0.375% 10 ml for parasternal block only. Postoperative, all patients will receive a morphine PCA. They will follow at 6, 12, 24 months for persistent postoperative surgical pain (PPSP) and cancer recurrence.

Chemotherapy in clinically node positive breast cancer patients is increasingly administrated in a neoadjuvant setting. The standard treatment regimen in these cases is then: neoadjuvant chemotherapy (NAC) followed by breast surgery and an axillary lymph node dissection (ALND). NAC results in axillary pathologic complete response (pCR) in 1 out of 3 patients, indicating a complete absence of axillary metastases after completion of NAC. In such events, ALND can be regarded as overtreatment that creates unnecessary morbidity. Less invasive axillary surgery which can accurately assess axillary pCR is therefore preferred over standard ALND in all patients. In case of detection of remaining axillary lymph node metastases by this less invasive axillary surgical procedure, completion axillary treatment is standard of care. The novel RISAS procedure is introduced as a possible less invasive axillary staging procedure. RISAS procedure contains Radioactive Iodine Seed localisation in the Axilla in axillary node positive breast cancer combined with a Sentinel node procedure. The iodine seed in the axillary lymph node metastasis will be placed prior to start of NAC.

The purpose of this study is to research more reasonable and safe methods of nutritional support to improve the nutritional status of tumor patients, which guarantees the anti-tumor treatment such as chemotherapy.

The aim of this study is to determine if microRNA's have role in predicting multicentricity in breast cancer. If a specific microRNA will be found to be related with multicentricity, it will help us to make appropriate decisions on the treatment of patients with multicentric breast cancer.

the study aim to protect patients received anthracyclines containing chemotherapy from cardiotoxcity induced by anthracyclines derivatives. by using L-carnitine and Silymarin for protection the heart from anthracyclines toxicities, and in addition its a comparitive study between L-carnitine and Silymarin.

This clinical trial assesses the feasibility and acceptability of a smarter screening intervention for breast and colorectal cancer in older adults. This study aims to learn more about how to support patients and physicians in making cancer screening decisions for older adults.

Recently, there is growing interest in the application of three-dimensional (3D) printed bolus to radiotherapy.At present, the researches on the application of 3D-printed bolus in breast cancer are mainly focused on air gap between skin and bolus or electron beam conformal therapy [7,15], there are no clinical experience with customized 3D-printed bolus for volumetric modulated arc therapy (VMAT) in daily practice has been published up to now. We aim to evaluate dosimetry and application of 3D-printed bolus for the post-mastectomy radiotherapy (PMRT) with Volumetric modulated arc therapy (VMAT). Seventy five patients with breast cancer receiving radiotherapy following post-mastectomy in our department were randomly selected in this study. The accuracy of fit of the 3D-Printed bolus to the chest wall was improved significantly relative to conventional bolus.This study demonstrates customized 3D-printed bolus in post-mastectomy radiation therapy improves fit of the bolus compared to conventional bolus. Furthermore, VMAT based on 3D-printed bolus significantly improves the chest wall target coverage and the conformity of plan, and reduces the dose of ipsilateral lung and heart, compared to conventional bolus.