View clinical trials related to Breast Cancer.
Filter by:The study is being conducted to evaluate the safety, tolerability， preliminary efficacy, pharmacokinetics, and immunogenicity of SHR-A1811 combined with capecitabine in treatment of unresectable or metastatic breast cancer with low HER2 expression.
Evaluation of quality of life after conservative oncoplastic surgery in patients with breast cancer
Chemotherapy is one of the most common treatments for breast cancer, but the adverse effects can be severe enough to delay or make chemotherapy intolerable, thus affecting the efficacy of the disease. Women and younger patients are more likely to experience chemotherapy-induced nausea and vomiting (CINV) . Therefore, antiemetic drugs is a key way to reduce chemotherapy side effects, which ensures compliance, and maintain quality of life. CINV is usually induced by two pathways. The central pathway is mediated by neurokinin-1 (NK-1) receptors, where chemotherapeutic agents stimulate the secretion of substance-P (SP) from the vomiting center located in the medulla oblongata and nucleus accumbens, which binds to NK-1 receptors and induces vomiting. The peripheral pathway is mediated by 5-hydroxytryptamine 3 (5-HT3) receptors, and chemotherapy stimulates intestinal chromophores in the gastrointestinal mucosa to secrete 5-HT3, which binds to its receptors to induce vomiting. Most guidelines currently recommend the combination of 5-HT3 receptor antagonists, NK-1 receptor antagonists, and dexamethasone for high-emetogenic-risk chemotherapy regimens. Usually 5-HT3 receptor antagonists include granisetron, ondansetron, and palonosetron. Palonosetron is a second-generation 5-HT3 receptor antagonist with stronger affinity and higher efficacy than other antagonists. The commonly used NK-1 receptor antagonists are aprepitant and fosaprepitant. Fosaprepitant is an aprepitant prodrug that can be rapidly converted to aprepitant in the body, blocking the binding of substance P to NK-1 receptors for antiemetic purposes. Clinical trial has confirmed that the overall complete response (CR) rate of palonosetron 0.75 mg combined with fosaprepitant and dexamethasone was 54.9%, with 75.9% CR in the acute phase (0-24 h after chemotherapy) and 62.3% in the delayed phase (24-72 h after chemotherapy). Another clinical trial showed an acute phase CR of 89.8% and a delayed phase CR of 90.4% for oral aprepitant combined with intravenous palonosetron 0.75 mg and dexamethasone. The data suggests that both oral and intravenous administration are effective in preventing CINV, but there are no clinical trial results for oral versus intravenous administration. Oral administration is painless, has fewer side effects, and is a safer mode of administration, but bioavailability is different and drug absorption is affected by a variety of factors; whereas intravenous injection has rapid onset of action, but there are risks of injection reactions, phlebitis, and infection. Therefore, we hope to conduct a non-inferiority study on the efficacy of oral and intravenous 5-HT3 receptor antagonists combined with NK-1 receptor antagonists through this trial, which can provide more options for patients by combining the cost and administration methods.
This is an open label, phase III study evaluating the efficacy and safety of Pyrotinib in Combination With Trastuzumab and paclitaxel in patients HER2 Positive and lymph node negative invasive Breast Cancer
The design builds on past studies by integrating social network analysis (SNA) and implementation science (IS) into a longitudinal randomized clinical trial (RCT). The investigator will compare the long-term effects of interventions by examining guideline-concordant initial and repeat Brease Cancer (BC) screening.
According to the National Comprehensive Cancer Network (NCCN) guidelines, patients receiving high-risk or moderate-risk febrile neutropenia (FN) chemotherapy with at least one risk factor should receive prophylactic granulocyte colony-stimulating factors (G-CSFs). However, pegfilgrastim-induced bone pain (PIBP) remains a common and significant clinical issue without a satisfactory solution. Studies have reported that the incidence rate of PIBP is 71.3%, with severe bone pain occurring in 27.0% of cases. Currently, the available data on PIBP treatment are limited to case reports, reviews, and small randomized controlled trials. The NCCN guidelines recommend preventive oral non-steroidal anti-inflammatory drugs or antihistamines as the treatment for PIBP. However, even with these preventive measures, the incidence rate of PIBP remains high at 61.1%, with severe bone pain occurring in 19.2% of cases. Severe bone pain can significantly impact the patient's health-related quality of life (HRQol), leading to potential refusal of pegfilgrastim administration and subsequent dose reduction in effective chemotherapy. Ultimately, this may have negative implications for tumor cure rates and patient survival. Based on previous literature, it appears that delaying the administration of pegfilgrastim may be associated with a lower incidence of PIBP. Therefore, our study aims to investigate the correlation between the timing of pegfilgrastim administration and the occurrence of PIBP.
The purpose of this study is to examine the impact of metformin as an adjuvant to chemotherapy on IGF levels in both progressing and non progressing cases of metastatic breast cancer in female patients.
To evaluate the patterns and treatment outcomes of pyrotinib plus trastuzumab and chemotherapy in the real world.
All participants will read a decision aid (DA) communicating evidence about mammography screening benefits and harms. Participants' evaluations of that evidence will be assessed, along with their screening intentions and receipt of screening. Participants will be sent 3 surveys via email and a final brief survey conducted by email or phone. The four surveys will be collected 1) upon enrollment and prior to the primary care appointment; 2) following the primary care appointment; 3) 3 months after enrollment; 4) 1 year after enrollment. The final 2 surveys will offer an increased incentive to increase retention rates.
The standard method for localizing non-palpable breast cancer is currently clip localization, its positive margin rate still remains around 20-50%. This study aims to compare the accuracy and efficacy of single vs. combined breast tissue markers in localizing non-palpable breast cancer.