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Breast Neoplasms clinical trials

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NCT ID: NCT06370234 Completed - Breast Cancer Clinical Trials

The Prediction Model of NAC Response for Breast Cancer Based on The Parametric Dynamics Features.

Start date: April 21, 2015
Phase: N/A
Study type: Interventional

The main purpose of this study is to develop a computer-aided prediction model for NAC treatment response. Based on the heterogeneity of internal parametric tumor composition commonly observed, this study will utilize the histologic characteristics and treatment response to investigate the image features as input data for predicting treatment response using Deep Learning technology. Using this technique, preoperative treatment evaluation may be facilitated by tumor heterogeneity analysis from developed dynamic radiomics, and the possibility of personal medicine can be realized not far ahead. In the first two years of this study using images from DCE-MRI, PET/CT and QDS-IR, we plan to develop the image processing algorithms, including segmenting breast and tumor region, extracting image feature which reflects angiogenic properties and permeability of tumor, which are highly correlated with NAC treatment response. During the third year of the project, the morphology and texture features from first two years can be combined for PET/MRI and prediction model can be achieved in accordance with the features extracted from dynamic features extraction using longitudinal images of PET/MRI.

NCT ID: NCT06359054 Completed - Breast Cancer Clinical Trials

The Role of 68GA DOTATATE PET/CT In Breast Cancer Imaging

Start date: November 11, 2020
Phase: N/A
Study type: Interventional

Currently, F-18 FDG PET/CT is routinely used for breast cancer staging and treatment response assessment. Most breast cancers express Estrogen Receptor (ER) and Progesterone Receptor (PR) and this subtype shows lower activity on FDG imaging. 68Ga DOTATATE PET/CT is an effective imaging option for somatostatin receptor (SSTR) positive neuroendocrine tumors. There are case reports showing 68Ga DOTATATE uptake in non-Hodgkin lymphoma, meningioma, breast cancer, thyroid adenoma and papillary carcinoma. There are also histochemical studies showing that SSTR is a potential radiopharmaceutical target for ER+/PR+ breast cancer . Its hypothesized that 68Ga DOTATATE PET/CT may be superior to 18F FDG PET/CT primarily in hormone receptor (HR) positive breast cancer. In this study, its aimed to compare the uptake pattern of breast cancer lesions and HR status with 68Ga DOTATATE and 18F FDG uptake in lesions.

NCT ID: NCT06357689 Completed - Breast Cancer Clinical Trials

Association of SNPs in Long Intergenic Noncoding RNA 00511 (LINC00511) With Breast Cancer Among the Egyptian Population

Start date: October 24, 2021
Phase:
Study type: Observational

Long non-coding RNAs (lncRNAs) play an important role in different types of cancer, including breast cancer, through regulation of gene expression and epigenetic signatures. Genetic variations such as single nucleotide polymorphisms (SNPs) in lncRNAs have been found to be associated with cancer. Our aim was to provide information about the role of LINC00511 SNPs (rs11657109 or rs17780195 or rs9906859, rs4432291 and rs1558535) in breast cancer susceptibility in the Egyptian population.

NCT ID: NCT06335550 Completed - Breast Cancer Clinical Trials

Surgical and Patient Reported Outcomes in Robotic Mastectomy

Start date: November 24, 2022
Phase: N/A
Study type: Interventional

Conventional nipple and/or skin-sparing mastectomy (NSM/SSM) with or without immediate reconstruction is becoming one of the mainstream surgical treatment for breast cancer and risk reducing mastectomy in recent years. While this technique provides satisfactory oncologic and aesthetic outcomes, its disadvantages include skin flap and/or nipple-areolar complex (NAC) necrosis, NAC malposition/distortion as well as visible scar(s) on the breast. In terms of technical aspects, NSM/SSM has its inherent challenges in view of limited incisions and thereby difficulties in dissection. Since 2015, a number of institutions worldwide had adopted a new technique of NSM/SSM using robotic surgical system. Institutional experiences worldwide demonstrated feasibility and safety of this technique coupled with improved patients' satisfactions. To date, there is no center in Singapore or the region offering Robotic NSM/SSM (R-NSM/R-SSM). The authors believe that robotic mastectomy is a feasible and safe technique that can be utilized in our institution and it provides superior aesthetic outcomes with less morbidity and higher patient satisfaction if compared to conventional NSM/SSM. The aim of this study is to conduct a single-arm prospective pilot study to investigate the safety and feasibility as well as learning curve of R-NSM/R-SSM.

NCT ID: NCT06322316 Completed - Breast Neoplasms Clinical Trials

Analgesic Efficacy of U/S Retrolaminar Block and Erector Spinae Plane Block in MRM

Start date: October 1, 2022
Phase: N/A
Study type: Interventional

Modified radical mastectomy (MRM) is the most commonly performed surgical procedure in breast cancer patients and is usually associated with severe postoperative pain. The peripheral nerve block techniques were suggested to reduce acuter post-mastectomy pain. The study compared the analgesic efficacy of retrolaminar block (RLB) and ESPB in patients undergoing MRM.

NCT ID: NCT06309459 Completed - Clinical trials for Triple Negative Breast Cancer

Carbonic Anhydrase IX Enzyme in Triple Negative Breast Carcinoma

Start date: August 1, 2018
Phase:
Study type: Observational

Triple-negative breast carcinoma is characterized by the absence of estrogen receptors, progesterone receptors, and HER2/neu receptors. Carbonic anhydrase IX (CA IX) is a tumor-associated cell surface glycoprotein that is involved in adaptation to hypoxia-induced acidosis and plays a role in cancer progression. This study aimed to investigate CA IX expression in TNBC and its relationship with treatment effect.

NCT ID: NCT06307457 Completed - Breast Cancer Clinical Trials

A Study of HR+/HER2- Metastatic Breast Cancer Patients Treated With Palbociclib Together With an Aromatase Inhibitor From 2017 to 2023 in Denmark.

Start date: March 11, 2024
Phase:
Study type: Observational

The purpose of this study is to describe the effect of the medicine palbociclib when given together with an aromatase inhibitor for treatment of breast cancer. The study will consider participants who: - have advanced or metastatic breast cancer that is spread to other parts of the body. - have HR+/HER2- (hormone receptor positive* / human epidermal growth factor receptor 2 negative**) breast cancer types. - Hormone receptor positive (HR+): are cells that have a group of proteins that bind to a specific hormone. For example, some breast cancer cells have receptors for the hormones estrogen or progesterone. These cells are hormone receptor positive, and they need estrogen or progesterone to grow. This can affect how the cancer is treated. Knowing if the cancer is hormone receptor positive may help plan treatment. - Human epidermal growth factor receptor 2 negative (HER2-): cells that have a small amount or none of a protein called HER2 on their surface. In normal cells, HER2 helps control cell growth. Cancer cells that are HER2 negative may grow more slowly and are less likely to recur (come back) or spread to other parts of the body than cancer cells that have a large amount of HER2 on their surface. Checking to see if a cancer is HER2 negative may help plan treatment. - have started treatment in the period between January 2017 and December 2021. The study will describe the treatment effect for different patient groups in terms of age and comorbidities. Comorbidity is the condition of having two or more diseases at the same time. The data is collected by the Danish Breast Cancer Group in the period between 2017 to 2023.

NCT ID: NCT06305702 Completed - Clinical trials for HER2-positive Metastatic Breast Cancer

Real-world Study of Inetetamab in HER2-positive Metastatic Breast Cancer

Start date: July 1, 2022
Phase:
Study type: Observational

A multicenter real-world study was conducted to gather clinicopathological data from patients with HER2-positive metastatic breast cancer who were treated with inetetamab between 2022 and 2023. The study aimed to estimate the progression-free survival (PFS), objective response rate (ORR), disease control rate (DCR), and adverse events (AEs) associated with inetetamab therapy.

NCT ID: NCT06299930 Completed - Breast Cancer Clinical Trials

Locoregional Recurrence After Neoadjuvant Versus Adjuvant Chemotherapy

Start date: April 22, 2022
Phase:
Study type: Observational

Neoadjuvant chemotherapy (NACT) for early-stage breast cancer is associated with an increased risk of locoregional recurrence (LRR). However, few studies have conducted subgroup analyses of patients with various molecular subtypes, which are one of the determinant factors for treatments. The aim of the study is to investigate whether the risk of LRR after NACT varies across tumor subtypes. The investigators retrospectively reviewed the medical records of female breast cancer patients who underwent breast-conserving surgery at three institutions between January 1, 2004, and Dec 31, 2018.

NCT ID: NCT06239766 Completed - Breast Cancer Clinical Trials

BC Risk Assessment Before Top Surgery

Start date: March 15, 2023
Phase:
Study type: Observational

The population of transgender and gender-diverse (TGD) persons in Wisconsin and the U.S. is steadily increasing. As this population grows, the number of individuals seeking gender-affirming therapies, including gender-affirming operations and gender-affirming hormone therapy, is also growing. An example of gender-affirming surgery is chest masculinization surgery, in which most breast tissue is removed in a person assigned female or intersex at birth to allow the chest to appear masculine. Gender-affirming chest masculinization surgery is not generally considered equivalent to an oncologic mastectomy, which aims to removal all breast tissue for future breast cancer reduction or current breast cancer treatment. The goals of this investigation are to 1) determine the percent of TGD persons considering chest masculinization surgery who have an elevated lifetime risk of breast cancer development and/or a pathogenic genetic mutation; 2) measure the percent who are at risk and choose to undergo risk-reducing mastectomies as part of chest masculinization surgery; and 3) assess and compare self-perceived breast cancer risk with calculated risk. The results of this study will substantially inform TGD patients and surgeons on the utility of personalized breast cancer risk assessment prior to chest masculinization surgery and the accuracy of self-perceived breast cancer risk in TGD persons.