View clinical trials related to Carcinoma, Squamous Cell.
Filter by:At present, concurrent chemoradiotherapy (cCRT) with platin-based dual-drug regimen is the standard treatment for inoperable, locally advanced esophageal cancer in patients with a good performance status. However, cCRT has substantial toxic effects, and a large number of patients with older age, malnutrition and other morbidities, cannot tolerate cCRT. Several phase II trials showed combining PD-1 inhibitor with definitive cCRT provided encouraging activity and acceptable toxicity in patients with locally advanced esophageal squamous cell carcinoma (LA-ESCC). Therefore, this single-arm, multicenter, phase II trial aims to assess the efficacy and safety of immunotherapy plus radiotherapy with immunonutrition support in patients with LA-ESCC and positive PD-L1 expression who are intolerant to cCRT.
To date, there is controversy as to whether type II diabetes mellitus is associated with adverse short- and long-term outcomes in patients with esophageal squamous cell carcinoma undergoing minimally invasive esophagectomy. At the same time, to the best of our knowledge, the impact of metformin use and glycemic control on short- and long-term outcomes in this patient population is also controversial. Therefore, this study aims to test the hypothesis that diabetes mellitus is associated with reduced survival in patients with esophageal squamous cell carcinoma undergoing minimally invasive esophagectomy and that treatment with metformin and/or good glycemic control (HbA1c<7.0%) is associated with improved survival.
Evaluate a deep-learning model trained on computational histopathology for predicting outcomes in cutaneous squamous cell carcinoma
The purpose of the study is to investigate the ability of mass spectrometry imaging to locate aggregates of basal cell carcinoma (BCC) and squamous cell carcinoma (SCC) ex-vivo, and to distinguish areas containing these carcinomas from normal skin. It is suggested that non-melanoma skin cancer (NMSC) cells show a different profile of endogenous lipids than healthe skin tissue which can be used as identifying biomarkers. If that hypothesis is correct it will be possible in the future to develop real-time tissue diagnosis and treatment of NMSC using mass spectrometry guided surgery. Method between 60 and 100 patients with BCCs, SCCs, and actinic keratoses (AK) will be recruited. For patients referred for Mohs surgical procedure at the Department of Dermatology, Bispebjerg Hospital, to treat BCCs or SCCs, three skin sections (5-10 um thick) of the tissue that is already removed will be use in our study. One section will be HE stained so we know exactly where the regions of interest are. Two sections will be used for MS analysis (MSI spectrum and REIMS spectrum). When patients are referred for a procedure to have treated several actinic keratoses (grade 1, 2 or 3) at Department of Dermatology, Bispebjerg Hospital we will take an extra punch biopsy (2-4 mm) depending on the size of the lesion. The biopsy is embedded and sectioned. We will use 3 skin sections (5-10 um thick) we will again use one section for HE staining and two for MS analysis. Multivariate statistical analysis will be performed on all mass spectra using Matlab or similar program. Linear discriminant analysis will be used to identify spectral differences between pre-malignant, cancer and normal tissue. Classification performance will be recorded with a leave-one- patient- out cross- validation scheme.
As there is no consensus to date on the optimal postoperative nutritional support route for patients undergoing minimally invasive esophagectomy, the purpose of this study is to assess whether there is a potential advantage to receiving jejunostomy feedings for postoperative patients undergoing McKeown MIE as compared to the conventional nasoenteric tube feeding method.
It has been reported that patients with esophageal squamous cell carcinoma who achieved pathological complete response (PCR) to neoadjuvant chemoradiotherapy have better survival than those with non-PCR. Howeve, there is still recurrent diseases developed in PCR patients after esophagectomy. Herein, we aimed to investgate the risk factors of recurrence in PCR patients.
The care of patients with high-risk cutaneous squamous cell carcinomas in the head-neck area is complex and requires a multidisciplinary approach. A key component in this care is the need and experience of patients. However, studies on the experiences and needs of patients with high-risk cutaneous squamous cell carcinomas in the head-neck region are lacking.
In our previous study (title: Expression of Major Histocompatibility Complex Molecules class II- HLA-DR in Squamous Cell Carcinoma of the Head and Neck. ID 2222)the Authors verified that the epithelial cells of squamous cell carcinoma of the head and neck acquire the ability to express HLA-DR. Although the role of the expression of these molecules on neoplastic cells still remains controversial, a positive association between HLA-DR expression and clinical outcome was observed by us in analogy to what was reported by several studies on various types of tumors : in squamous cell carcinoma of the larynx, colorectal cancer , stomach cancer and others. In these tumors the expression of HLA-DR correlates with the presence of immune cells such as CD16+/CD11c macrophage myeloid cells, associated with a good prognosis and T cells which, recalled in the damaged tissue, they determine the formation of an immunogenic microenvironment that could support an anti-tumor immune response. Oncology studies are in fact focusing on the role of the tumor microenvironment which is characterized by different cell populations, among which the most abundant population is represented by tumor-associated fibroblasts (CAF). CAFs are fibroblasts which, in a tumor context, assume a phenotype similar to that of myo-fibroblasts and are distinguishable from normal fibroblasts by a greater expression of α-sma, FAP and FSP-1, which represent their specific markers, as well as a greater expression of vimentin, fibronectin, and type XI collagen. Numerous evidences in different types of tumors have reported both the immunosuppressive role, as these cells are capable in vitro of inhibiting the proliferation of T lymphocytes, to favor their apoptosis or to induce the phenotype of regulatory T lymphocytes; and the pro-tumor role, as they are capable of promoting tumor proliferation and invasion, angiogenesis and metastasis, thus contributing to the worsening of the prognosis. Many studies are directing their research on which factors secreted by CAFs are responsible for their function. In particular, among the many factors secreted by CAFs, there are the interleukins IL-17 and IL-33 which, as it has been demonstrated, can induce the activation of HLA-DR molecules on bone marrow-derived mesenchymal cells . It therefore seems interesting to investigate the role of HLA-DR in relation to the presence of the tumor microenvironment represented by CAFs.
According to the most recent guideline of the National Comprehensive Cancer Network (NCCN), desmoplasia is considered to be a very high risk factor for recurrence, metastasis and death in cutaneous squamous cell carcinoma (cSCC). The presence of desmoplasia is assessed by dermatopathologists during histological examination of cSCCs. However, the inter-observer agreement is between dermatopathologists in the assessment of desmoplasia is unclear. Studies on inter-observer variability in the assessment of differentiation grade in cSCCs showed that there is only a weak to moderate agreement among dermatopathologists in the assessment of differentiation grade (2-4). This study aims to investigate the interobserver agreement of desmoplasia between dermatopathologists. In this prospective study, 50 cSCCs will be assessed for desmoplasia by at least eight dermatopathologists using a predefined definition.
This study examines tumor- en surgical characteristics of stage T3 cutaneous squamous cell carcinomas on the scalp, diagnosed between 2010 and 2018. Histological data and patient- and tumor characteristics were collected.