Active clinical trials for "Neoplasms"

In order to more accurately discover the cause of drug resistance in tumor treatment, and to provide a new basis for precise treatment. Therefore, based on the umbrella theory of precision medicine, we carried out this single-center, prospective, and observational study to include patients with liver metastases from colorectal cancer. By combining genome, transcriptome, and proteomic sequencing data, we established a basis for colorectal cancer liver Transfer the multi-omics data of the sample, describe the reason for the resistance of the first-line treatment, and search for new therapeutic targets.

Platinum-sensitive is an important basis for the treatment of recurrent epithelial ovarian cancer (EOC) without effective methods to predict.We aimed to develop and validate the EOC deep learning system to predict the platinum-sensitive of EOC patients through analysis of enhanced magnetic resonance imaging (MRI) images before initial treatment.Ninety-three EOC patients received platinum-based chemotherapy (>= 4 cycles) and debulking surgery from Sun Yat-sen Memorial Hospitalin China from January 2011 to January 2020 were enrolled. This deep-learning EOC signature achieved a high predictive power for platinum-sensitive, and the signature based on MRI whole volume is better than that on primary tumor area only.

This study is about preparing people with cancerous tumours, soft-tissue sarcoma (STS), in the leg to recover more quickly from surgery. Prehabilitation or "surgery school" is done before surgery while undergoing other cancer-related treatments. To test this idea, two groups will be formed. One group will have the prehabilitation program and the other group will have the same amount of attention from the research team who will visit them at the time of the radiotherapy sessions to provide support and any information they may need.The results of the study will indicate whether it is a good idea to conduct a bigger study that would involve many centres in Canada.

The excessive accumulation of fluid between the membranes surrounding the lung, a clinical condition commonly referred to as "pleural effusion", is caused by one of three factors: increased production of pleural fluid, decreased ability to reabsorb pleural fluid or a mixture both. The basis of pleural effusion accumulation may originate from multiple pathologies: from benign and extrapulmonary conditions to intrinsic pleural pathology (inflammatory or neoplastic primary or metastatic) in which the accumulation of fluid in the pleural space is mainly due to changes in the structure of the pleural membrane (loss of integrity and / or infiltration by neoplastic cells). An example of extrapulmonary conditions is the pleural effusion observed in patients with congestive heart failure in which there is increase in hydrostatic capillary pressure, due to failure of the cardio circulatory pump. The distinction between benign and malignant causes is currently a diagnostic challenge that usually requires the collection of material (cells immersed in the pleural fluid or even a histological sample). The first step of this investigation is currently the cytological evaluation of the pleural fluid, that is, the observation of cells, of an initial sample of the pleural fluid. This procedure is associated with an average sensitivity of 62% while a second sample through thoracentesis improves the sensitivity of the diagnosis by 10%. In certain cases, however, it is not possible to diagnose by analyzing the pleural fluid and, as a rule, a more invasive diagnostic method is recommended, such as pleural biopsy (collected by puncture with a "blind" needle, echo guided or computed tomography guided or obtained by means of direct visualization of the pleural cavity through pleuroscopy). The diagnostic yield of this approach can reach up to 97% (in the case of pleural biopsy obtained by medical thoracoscopy). However, it implies greater morbidity and greater consumption of resources (material and human). The development of a more sensitive and specific and at the same time less invasive diagnostic method for pleural fluid may contribute to a more effective screening of patients, limiting the use of more invasive methods to only patients with a higher risk of malignant pathology.

This is a comparison of totally laparoscopic and laparoscopic-assisted colon cancer resection, a prospective registration study comparing the safety and benefits of the two operations

The purpose of this study is to explore the effect of immunological heterogeneity of tumor microenvironment in the short-term outcome and long-term outcome of patients with gastric cancer.

Breast cancer ranks as the top leading malignant tumors among females, and also accounts for the most common cause of tumor related mortality in females worldwide. Approximately, 20-30% of breast cancer cases develop metastasis, while 50% of patients will suffer from breast cancer liver metastasis. The proper indication for surgical treatment of breast cancer liver metastasis is still a matter of discussion. Surgery is becoming more practical and effective than conservative treatment in improving the outcomes of patients with breast cancer liver metastasis and liver metastasis surgery is included in an onco- surgical strategy.

"Nasal polyposis is a chronic inflammation of the sinonasal mucosa which is characterized by the development of polyps in the sinonasal cavities. In the general population, its prevalence is 4% with a clear increase from the age of 50 years. When drug treatment is not effective, and the patient's quality of life is impaired, surgery is proposed. It allows to widen the nasal cavities with aerodynamic and acoustics effects on speech. There are few studies, that have focused on the impact of NP and its treatment on speech. Yet there is a real demand from patients to obtain answers related to the impact of this surgery on their voice. Preoperatively and postoperatively, the resonance will be disturbed: polyps will impacted the quality of the nasal sounds. And after surgery, the new anatomical shape can create an excessive resonance in the nasal cavities. Indeed, there is a diversity of acoustic effects that differ according to the sinuses involved, the nature and type of surgery and the anatomical and physiological specificities of the patient. The impairment of acoustic properties after surgery is diverse and little known. The surgery improves the communication between sinuses and nasal cavities but the real impact on nasal resonance still unknown. The particularity of this pathology stands in the obstruction of the sinonasal cavity by polyps. On this study, it represents a model of nasality disturbance/impairment ? Indeed, all aspects of nasality will be altered : the articulation by the obstruction of the sino-nasal cavities, the aerodynamic by a disturbance of the circulation of the airflow within the nasal cavity, acoustics by an alteration of the resonance of this flow, and finally the perception of speech by others where the comprehension of speech is difficult. Thus, the investigators wish to observe this dysfunction in a multipara metric way in order to have an accurate approach. This population is therefore ideal. In preoperative, it will allow to measure by aerodynamic, articulatory, acoustic, and perceptive data taking this dysfunction, to give precise answers. Then, postoperatively, these measurements will be repeated to observe a return to the expected functioning of the nasal cavity. Indeed, the cavities being no longer congested, a greater flow of nasal air would be expected, which would have acoustic consequences on the resonance of nasal sounds. This could be accentuated because of the new anatomical configuration due to the surgery. Perceptually, the voice after surgery should no longer be considered as pathological. In addition to the linguistics aspect, this population has the particularity of having a strongly impacted quality of life. The investigators would therefore like to measure this impact on quality of life before and after surgery. For this study, the main objective is to measure the articulatory, aerodynamics, acoustics and perceptive impact of the nasal polyposis on speech before and after surgery. the secondaries objectives are to: Compare the differences in aerodynamic, acoustic, articulatory and perceptual changes between the ""presence of polyps in the nasal and sinus cavities"" group and the ""presence of polyps in the sinus cavities"" group Compare the modifications on the speech of the pathology before and after surgical treatment Identify the elements related to the quality of life impacted by this pathology. Identify the glottic compensation strategies induced by the pathology Compare preoperative and postoperative nasal resonance and the relationship between nasal and sinus cavities using 3D models Validate the adequacy of the nasality-speech questionnaire for patients with sinonasal polyposis"

Malignant pleural mesothelioma (MPM) is a highly aggressive tumor with atypical clinical manifestations. Most patients with MPM are at an advanced stage at the time of diagnosis, and only a few patients can be cured by radical surgery and other treatment measures. Pemetrexed + cisplatin chemotherapy with or without bevacizumab is still the standard treatment for MPM. In recent years, multimodality therapy including surgery, radiotherapy and chemotherapy have shown certain advantages in improving patient overall survival time. Targeted and immunotherapy may bring breakthroughs in MPM therapy. However, there are still no high-quality evidence-based medical evidence reports on the treatment model and effects of MPM patients in China. Focusing on MPM, we plan to systematically review the relevant scientific literature, confirm relevant scientific research questions, and provide references for related treatments. On this basis, we will estimate MPM incidence and mortality rates from 2014 to 2025 based on the data published by the National Cancer Registry. Meanwhile, a retrospective study cohort was constructed based on the electronic medical record database, and according to the research demand, patients were followed up with their post-discharge survival status to comprehensively describe and analyze the incidence, diagnosis, treatment, and prognosis of MPM patients. Also, exploratory analysis of the therapeutic effects of existing clinical treatments was conducted.

Rationale: To date, the diagnosis and subtyping of basal cell carcinoma (BCC) is verified with histopathology which requires a biopsy. Because this technique is invasive, new non-invasive strategies have been developed, including Optical Coherence Tomography (OCT). This innovative technique enables microscopically detailed examination of lesions, which is useful for diagnosing and identification of various subtypes of BCC. The diagnostic value of the VIVOSIGHT OCT in daily clinical practice, has not been established to date.