Active clinical trials for "Adenocarcinoma"

Phase 2 hypofractionation study usion proton beam therapy for prostate adenocarcinoma

Endoscopically, WHYX cancers demonstrated a vague extent of tumor spread due to pale color changes in both the background atrophic and metaplastic gastric mucosa. However, the clinical outcomes of WHYX cancers after endoscopic resection are unknown. The aim of this study was to evaluate clinical outcomes of WHYX cancers after endoscopic resection.

The purpose of this study is to see if implanting MatriStem will lower the risk of one of the more common complications after stomach or esophagus surgery.

Open label study of sorafenib

The purpose of this study is to determine whether the experimental vaccine "modified CEA peptide CAP 1 -6D" (mCEA) can produce an immune response in patients with pancreatic cancer who have received chemotherapy and radiation therapy.

The principal objective of this study is to demonstrate that patients can safely receive combined High Dose Rate brachytherapy and Intensity-Modulated Radiation Therapy without experiencing a treatment limiting toxicity.

The purpose of the study is to test 18F-BMS-986229 positron emission tomography (PET) imaging a practical and safe way to check the status of esophageal, stomach, and gastroesophageal junction cancer.

The aim of the study is to evaluate the use of irreversible electroporation in the treatment of locally advanced cancers of the head of pancreas with vascular spread. This technique would allow to treat the unresectable part of the tumor to make it more accessible for a secondary surgery.

This study looks at the level of circulating tumor elements (cancer cells or DNA pieces floating in the blood) and how it may be related to how the tumor responds to standard treatment in patients with rectal cancer that has spread to nearby tissue or lymph nodes (locally advanced). Researchers will also compare the level and genetic characteristics of circulating tumor elements between individuals with rectal cancer and healthy individuals to understand how they may change over time. Information from this study may help researchers better understand rectal cancer.

Despite important therapeutic advances, pancreatic adenocarcinoma remains one of the cancers with a high mortality rate (4th leading cause of cancer death in the US in 2021), poor prognosis (5-year overall survival rate of 10%) and increasing incidence. Patients are often metastatic from the start or at an advanced stage at diagnosis, making curative treatment difficult to envisage. Although the gold standard of treatment for resecable pancreatic adenocarcinoma is initial surgery followed by adjuvant chemotherapy, considerable interest has emerged in a treatment strategy involving neoadjuvant therapy in patients at high risk for positive resection margins (R1) on initial imaging workup. The assessment of response to neoadjuvant therapy is complex, especially for the evaluation of vascular invasion with a high risk of overestimating residual invasion after neoadjuvant therapy. Accurate assessment of tumor size before and after neoadjuvant treatment is therefore crucial to identify good responders (according to RECIST 1.1 criteria) and thus improve the selection of patients who can benefit from curative surgery with healthy resection margins (R0). In clinical practice, tumor size assessment is performed by injected computed tomography (CT). The latter has certain advantages in terms of technical reproducibility, but has a number of limitations. Indeed, the delineation of the tumor mass in CT seems to be subject to a significant inter-observer variability. The same is true for vascular invasion. CT also seems to underestimate the size of the tumor compared to the anatomopathological examination of the surgical specimen. On the other hand, Magnetic Resonance Imaging (MRI) has been shown to be superior to CT in tumor detectability and diagnosis of malignancy in the presence of an indeterminate pancreatic mass. It has also been shown that tumor size, whether measured in diameter or volume, is frequently underestimated on CT compared to multiparametric MRI or pathological examination of the resection specimen. In the latest recommendations of the National Comprehensive Cancer Network (NCCN), MRI is indicated at diagnosis in non-metastatic patients with indeterminate liver lesions on CT, or as a second-line alternative to CT for re-evaluation after neo-adjuvant therapy in patients with resectable or borderline resectable disease according to the NCCN classification. However, MRI is increasingly performed routinely in some centers, both at diagnosis and at re-evaluation after neo-adjuvant therapy. The question of which imaging modality between CT and multiparametric MRI is the most reproducible in terms of tumor size measurement becomes important, especially in the evaluation of the response to neoadjuvant therapy. A few studies have investigated the interobserver variability of tumor size measurement in CT versus MRI in the context of radiotherapy management for the delineation of an irradiation field, but to date investigators have not found any study evaluating the interobserver variability of tumor size measurement using RECIST criteria before and after neoadjuvant treatment for pancreatic adenocarcinoma.