Active clinical trials for "Breast Neoplasms"

Breast cancer is the most common cancer among women in the United States. Breast cancer research has been hampered by the difficulty in collecting normal breast tissue. In this study, researchers will obtain samples of normal breast tissue from organ donors and will collect risk-factor data from next-of-kin. The purpose of this study is to learn how normal breast develops and responds to stresses that are known to increase a woman s chance of developing breast cancer. Following the breast-tissue donation from 20 volunteers, surgical technicians will make small incisions in the skin and tissue of the breast and remove several samples measuring about one-inch. Technicians also will take samples of the uterine lining to estimate the date of the last menstrual period. The tissue will then be sent to the National Cancer Institute for laboratory research studies. Steps will be taken to ensure that the identity of the participants remains confidential.

The purpose of this study is to observe clinical outcomes of metastatic breast cancer patients whose tumors overexpress the Her2neu protein and are being treated with trastuzumab (Herceptin)either alone or combination with chemotherapy or hormonal therapy.

This study will examine the frequency and severity of problems in women with breast cancer during the first year after initial medical treatment, including: Physical impairments, such as loss of strength or flexibility, increased weight and swelling Symptom distress, such as pain, fatigue and weakness. Functional limitations and disabilities, such as loss of independence in activities of daily living (e.g., grooming, bathing, dressing, driving a car), work and social and recreational activities. It will identify factors associated with these problems and try to determine their relationship to them. Patients 18 years of age and older with stage I, II, III or IV breast cancer may be eligible for this study. Participants will be drawn from patients referred to the National Naval Medical Center for diagnosis and treatment during 2000-20001. Participants will be interviewed and their medical records reviewed for past medical history, history of the present illness and social and recreational history. They will be seen five times over a 1-year period (initial visit and at 3, 6, 9, and 12 months), for 30-minute visits, which will include the following: Interview about past medical history and present illness, social and recreational activities, functional independence at work and during activities of daily living. Complete health survey and upper limb disability questionnaire; physical activity questionnaire to be completed at 6 and 12 months after medical treatment begins. The questionnaires take about 30 to 40 minutes to complete. Upper body examination, including pain measurement using a 10-point scale, an upper limb lift test, and measures of upper limb volume and girth.

The propose of this prospective study focuses on the role of [18F]FES PET imaging in patients with breast cancer who might receive or are receiving hormone therapy. First, we will develop and optimize the radiosynthesis and quality control tests of [18F]FES in conditions that meet good manufacturing practice (GMP) requirements. Secondly, patients with or without metastatic breast cancer will be enrolled for the conduction of human study. [18F]FES PET imaging will be performed on patients before the initiation of hormone therapy to predict the prognosis and therapeutic response to hormone therapy. The [18F]FES PET results will be compared with ER status obtained by immunohistochemical (IHC) staining on surgically obtained specimens. Moreover, in patients with progression of metastatic disease, the [18F]FES PET will be correlated with ESR1 gene mutation, which is one of the mechanisms for resistance to hormone therapy.

Breast Cancer (BC) is one of the most frequent cancers in women and is the most frequent cause of death in the female population. It represents 18% of all female cancers in the world.1 The incidence varies in different populations with almost half of the cases having their origin in North America and Western Europe. In Egypt, according to the National Population-Based Cancer Registry published in 2014, BC was the most frequent cancer among females representing 32% of all female cancers2 Metastatic disease occurs in approximately 20-50% of patients with early BC history and in 6-10% of newly diagnosed BC cases.3 Since patients with metastatic BC form a heterogeneous population, treatment recommendations ought to be made on an individual basis, considering hormone receptor (HR) and human epidermal growth factor receptor 2 (HER2) status, metastasis-free interval (MFI), response to and cumulative doses of previous therapy, location and extent of metastases and symptoms 4,5. Two thirds of BC patients have HR-positive (HR+) tumors 6, for whom endocrine therapy (ET) is the preferred initial treatment for metastatic disease as recommended in the treatment guidelines, even in the presence of visceral metastases 4, 6, 7. The use of ET is supported by data showing a therapeutic benefit with less toxicity and better quality of life in comparison to chemotherapy (CT) 5,8,9. Nevertheless, it is generally thought that CT is associated with greater and earlier tumor response, especially in the case of high burden of disease. For patients with hormone receptor-positive and HER2+ disease CT plus HER2-targeted therapy was strongly recommended, except for highly selected cases for whom clinicians may offer ET 10. On the contrary, for women with hormone receptor-positive HER2-negative disease who are the scope of this study the question of whether to use CT or ET as first-line treatment for metastatic BC remains, to date, partially unresolved.

The aim of the study is to document performance characteristics of a biopsy device indicated for use in axillary lymph nodes, to provide basic insights into the complexity of axillary biopsy procedures and generate hypothesis for further larger comparative trials. This is a Sponsor-initiated prospective, multicenter, registry trial. Patients that present with suspicious axillary lymph nodes at the time of breast cancer diagnosis undergo axillary sampling using the NeoNavia biopsy system. This is in accordance with clinical routine and current clinical guidelines. The system incorporates a new mechanism for controllable and precise needle insertion and a newly developed sampling needle for high yield sampling acquisition. It is approved for use in the breast and axillary lymph nodes.

Breast cancer is the most common cancer in women across the world, accounting for 25.2% of cancer cases among females and 14.7% of cancer-related deaths among females worldwide. The survival rates are markedly lower in the developing countries compared to developed countries, as well as the age at diagnosis. Core management of breast cancer includes surgical removal of the tumor either by breast-conserving surgery (BCS) or mastectomy (removal of the whole breast). Choosing between these two procedures may be influenced by factors that have yet to be studied in Saudi Arabia. The investigators aimed to determine the prevalence of BCS and mastectomy and the factors that may influence the choice of procedure. This retrospective study was carried out by reviewing the records of female breast cancer patients who underwent BCS or mastectomy at King Abdulaziz University Hospital between 2009 to June 2017, excluding those with metastasis (distant spread of the cancer) or recurrence. Using frequencies for the rate, and multivariate tests, the investigators analyzed different demographic, clinicopathological, and radiological factors to detect correlations with procedure choice.

This is a combination retrospective/prospective observational study with two arms:

Postoperative nausea and vomiting ( PONV ) is one of the common complications after general anesthesia while genetic factors may play an important role in Postoperative nausea and vomiting. In this study, the investigators investigated the relationship between gene polymorphism ( such as single nucleotide polymorphism ) of the gene HTR3A ( 5-hydroxytryptamine receptor 3A ), HTR3B ( 5-hydroxytryptamine receptor 3B ), HTR3C ( 5-hydroxytryptamine receptor 3C ) and TACR1 ( tachykinin receptor 1 ) etc. with nausea and vomiting after general anesthesia. Simultaneously, the investigators explored the influencing factors of nausea and vomiting.

After breast cancer (BC) screening was introduced for all Swedish women in 1989-90 the number of early invasive BC, clin N0 rose dramatically. For these BC it was known that only 10 % or less was N+ after axillary dissection and the morbidity for axillary surgery was substantial. Omitting axillary dissection in a randomized trial was ruled out because of anticipated few events. A national cohort was decided for invasive unifocal BC, histological grade 1 or 2, T=max 10mm, free margins, clin node neg. No axillary dissection should be undertaken. This was before the Sentinel Node era. Adjuvant treatment could be given according to regional guidelines for early breast cancer. Not uniform concerning postoperative radiotherapy and antihormonal treatment. Follow-up was clinical the first 5 years with mammography and then by hospital records and national Death register. Primary aim: Number of axillary recurrence and BC specific survival.