Active clinical trials for "Carcinoma, Ductal"

According to the World Health Organization, breast cancer is the most common cancer in women, and is responsible for 686,000 new cases every year. The WHO also posit that nearly 420,000 women perished from the disease in 2002. Surgery remains the best option for patients presenting with operable Stage I, II or III cancers. Breast conservation surgery has been shown to be as efficacious as mastectomy. About 60-70% of these women with operable breast cancer are breast conservation candidates. However, the need to achieve negative tumor margins often requires a second operation (re-excision) in up to 70% of the women having lumpectomy surgery. Currently, tumor margins assessment in the operating room is often assessed grossly by palpation. The ability to evaluate tumor margin using our proposed intraoperative imaging technique may provide the surgeon with an alternative, and hopefully, more sensitive method to assess tumor margins which may decrease re-excision and the morbidity associated with additional surgery, and, perhaps, lower the risk of local regional recurrence.

The purpose of this study is to establish techniques for evaluating breast cutaneous sensation at baseline and following either lumpectomy or mastectomy for breast cancer.

Pancreatic duct adenocarcinoma is a highly aggressive carcinoma that is associated with a poor prognosis. Detection of novel biological markers that are specifically over expressed in pancreatic duct adenocarcinoma and their subsequent targeting by anti cancer therapeutic modalities may improve patient's survival.

The rate of axillary dissection avoided in patients with Ductal Carcinoma in Situ (DCIS) and a mastectomy indication will be obtained by calculating the proportion of women with GAS in-patient population that will prove to be DCIS or DCIS-MI + CCI. A confidence interval of 95% will be deferred.

Decision making about whether to have breast reconstruction after mastectomy can be difficult, and previous studies have found that many women are not well informed about their options. Patient decision aids can improve decision quality for a variety of health conditions. This pilot randomized study seeks to determine how a patient decision aid about breast reconstruction affects the quality of decisions about reconstruction including patient knowledge, concordance between preferences and treatment, and decisional regret.

Patients with ductal carcinoma in situ (DCIS) treated with available therapies have experienced excellent outcomes and very low mortality rates due to the disease's non-invasive nature. However, considerable debate exists as to how the DCIS lesion should be treated. As a result, determining strategies to manage DCIS has been identified as a research priority. The role of sentinel lymph node biopsy (SLNB) for DCIS management is controversial in general and needs further scrutiny. Our study addresses this evidence gap as the investigators propose a retrospective cohort study to investigate the outcome of SLNB among DCIS patients. Specifically, the investigators will compare the outcomes, including survival outcomes and treatment side effects, among women older than 67 years of age with DCIS receiving SLNB vs. not receiving SLNB within 6 months of DCIS diagnosis. The investigators have two primary aims in this study: Aim 1: the investigators select our study sample using SEER-Medicare database. The investigators will determine associations between SLNB and acute/subacute side effects, including lymphedema, pain, and limitation of movement of upper extremity from the first breast conserving surgery to 9 months post-diagnosis. Aim 2: the investigators will determine associations between SLNB and long-term outcomes, including breast cancer specific mortality, ipsilateral invasive breast cancer diagnosis, subsequent mastectomy as treated recurrence, and lasting side effects, from >9 months post-diagnosis to death or the end of this study period. Given the nature of our observational study design, the investigators will apply standard multivariate analyses and propensity score methodology to reduce the influence from confounders. The investigators will control for patient demographics, comorbidities, functional status, tumor characteristics, and prior healthcare utilization. Using distance to the nearest provider that uses SLNB for DCIS or surgeon's tendency in using SLNB for stage I/II breast cancer, the investigators also plan to conduct instrument variable analyses if necessary. Stratifying patients by key DCIS characteristics (including grade, comedonecrosis, and tumor size) and their predicted life expectancy (given their age and comorbidities), the investigators also hope to identify patient subgroups who may safely forgo SLNB. The study would provide evidence on the efficacy and safety outcome of SLNB for DCIS management.

A PET scan drop less than 20% in SUVs or below a certain absolute SUV value after the first course of neoadjuvant chemotherapy can predict pathological response, and could in the future lead to an early surgical intervention.

A prospective observational longitudinal study of 464 patients was performed between 2010 and 2015. Patients with invasive ductal carcinoma (IDC) and ductal carcinoma in situ associated to invasive ductal carcinoma (DCIS +IDC) were included and analyzed.

This pilot research trial studies characterization of mechanical tissue properties in patients with pancreatic, liver, or colon cancer. Mechanical properties and stiffness of the cancerous tissue may be correlated with the standard pathology report that describes the stage of the disease.

This study evaluates a new method of testing the lymph nodes in the armpit of patients with breast cancer for tumor involvement. All participants involved in this study will undergo an injection of a small amount of iron dissolved in liquid followed by an ultrasound of the axilla that will make previously invisible lymph nodes visible, allowing them to be sampled in an outpatient setting.