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198 active trials for Esophageal Cancer

Laser Fluorescence in Cancer Surgical Treatment

The use of fluorescence for real-time evaluation of organ and tissue vascularization and lymph node anatomy is a recent technology with potential for the surgical treatment of cancer. The real-time analysis of tissue vascularization allows immediate identification to the surgeon of areas with greater or lesser blood circulation, favoring surgical decision making and prevention of complications related to tissue ischemia (necrosis, dehiscences and infections). It is a technology with potential application in the areas of Digestive Surgery, Repairing Plastic Surgery in Oncology, Head and Neck Surgery. In addition, fluorescence can be used as a method to identify lymph node structures of interest in the oncological treatment of patients with urologic, gynecological and digestive tumors. Introduced by Pestana et al. In the late 2000s, the perfusion mapping system through intraoperative indocyanine assisted laser angiography (SPY Elite System © LifeCell Corp., Branchburg, N.J.) had its initial application in repairing surgery after breast cancer treatment. The method proved to be useful in the prevention of ischemic and infectious complications in cancer surgery. Pestana, in a prospective clinical series of 29 microsurgical flaps used in several reconstructions, observed a single case of partial loss of the flap, the present technology having a relevant role in intraoperative decision making. In the same year, Newman et al. The first application of the system in breast reconstruction surgery. In an initial series of 10 consecutive cases of reconstruction with microsurgical flaps, in 4 cases the system allowed the intraoperative identification of areas of low perfusion, thus changing the surgical procedure. According to the authors, there was a 95% correlation between indocyanine laser assisted and subsequent development of mastectomy skin necrosis, with sensitivity of 100% and specificity of 91%. Similarly, Murray et al. Evaluated the intraoperative perfusion, however, of the areola-papillary complex in patients submitted to subcutaneous mastectomies with satisfactory results in terms of predictability of cutaneous circulation. Other authors in larger clinical series and evaluating other procedures have observed valid results in terms of prevention of complications. Vascular perfusion of anastomoses and fistulas following bowel surgery for cancer remain a serious and common complication. These fistulas can be caused by insufficient perfusion of the intestinal anastomosis. Intraoperative angiography with indocyanine assisted laser can be used to visualize the blood perfusion following intravenous injection of the indocyanine green contrast. Several groups reported the ability to assess blood perfusion of the anastomotic area after bowel surgery. Although they studied retrospectively, Kudszus and colleagues described a reduction in the risk of revision due to fistula in 60% of patients whose anastomosis was examined using laser fluorescence angiography compared to historically paired patients without this method. The same principle can be used to evaluate the tubulized stomach to be transposed to the cervical region after subtotal esophagectomy. Currently, fluorescence-guided sentinel lymph node mapping has been studied in breast cancer as well as investigative character in colorectal cancer, skin cancer, cervical cancer, vulvar cancer, head and neck, lung cancer, penile cancer, cancer Endometrial cancer, gastric cancer and esophageal cancer. These early studies demonstrated the feasibility of this methodology during surgery. Comparison of laser fluorescence images on blue dyes indicate that fluorescence images can replace blue dyes because they exceed them due to increased tissue penetration depth and absence of staining in the patient and cleaning of the operative field. To date, there are no clinical studies involving intraoperative perfusion mapping and identification of lymph node structures with the SPY Elite System © system or other platforms (Pinpoint or Firefly) in Brazil that evaluate the Brazilian population. In an objective way the influence of this technology as predictive in the better or worse evolution of the oncologic surgery as well as in the prevention of the local ischemic complications by means of intraopeal change of conduct

Start: July 2016
Applying PET/MR in Oncology - a Prospective Project

Cancer is a global health issue. According to the World Health Organization, Cancer is the second leading cause of death globally, and is responsible for an estimated 9.6 million deaths in 2018. In Israel, more than 30,000 new cases of cancer were diagnosed, and more than 11,000 deaths were cancer-related during 2016. Imaging plays a pivotal role in cancer management, and multiple techniques are used in all phases of cancer management. The overall morphological, structural, metabolic and functional information obtained in imaging is used for improved individualized therapy planning. Different imaging modalities are available during different time points in the natural history of different malignancies: Early detection of cancer through screening based on imaging is probably a major contributor to a reduction in mortality for certain cancers . Once a diagnosis is made, determining the clinical stage of cancer, meaning the extent of the disease before any treatment is given, is a critical element in determining appropriate treatment based on the experience and outcomes of groups of previous patients with similar stage . Precise clinical staging of cancer is crucial. Not only that this clear non-ambiguous description is a key factor that defines prognosis, it is also a chief component of inclusion, exclusion, and stratification criteria for clinical trials. Several cancer staging systems are used worldwide. The most clinically useful staging system is the tumor, node, and metastasis (TNM) staging system developed by the American Joint Committee on Cancer (AJCC) in collaboration with the Union for International Cancer Control (UICC). The AJCC TNM system classifies cancers by the size and extent of the primary tumor (T), involvement of regional lymph nodes (N), and the presence or absence of distant metastases (M). There is a TNM staging algorithm for cancers of virtually every anatomic site and histology, with the primary exception of pediatric cancers. The clinical TNM (cTNM) classification should be used to determine correctly the clinical stage of cancer and to help guide primary therapy planning.

Start: November 2019
TreatmENT of AnastomotiC Leakage After Esophagectomy

Rationale: Anastomotic leakage (0% - 30%) is a severe complication after esophagectomy with mortality rates approximately ranging from 2% - 12%. In addition, it is associated with a prolonged ICU treatment and hospital stay. Anastomotic leakage severity is currently graded according to how it is treated (grade I: conservative treatment, grade II endoscopic or radiologic intervention and grade III surgical intervention). However, this scoring system cannot be used to guide decision making when anastomotic leakage is diagnosed in a clinical setting. Factors that may influence the severity of the anastomotic leakage are (amongst others) location of the anastomosis, estimated surface of the defect, estimated circumference of the defect, extent of contamination, degree of sepsis and time from diagnosis until therapy. However, little is known about to what extent these and other factors contribute to anastomotic leakage severity. In addition, there is a paucity of data on what leakage characteristics dictate the success of a specific treatment. Primary study objectives To investigate what factors contribute to anastomotic leakage severity and to compose an evidence based anastomotic leakage severity score. To investigate what anastomotic leakage characteristics are associated with success of different anastomotic leakage treatments and to compare the effectiveness of different initial anastomotic leakage treatments for leakages classified according to severity and leakage characteristics. Study design: International multicenter retrospective cohort study. Study population: Adult patients with anastomotic leakage after esophagectomy and gastric conduit reconstruction for esophageal cancer. Cohort size: 1000-2000 patients with anastomotic leakage after esophagectomy for cancer. Primary outcome parameter: 90 day mortality. Secondary outcome parameters: in-hospital mortality, 30-day mortality, 180-day mortality, comprehensive complications index, total number of reinterventions, hospital and ICU length of stay, hospital related costs. Funding: Radboudumc

Start: April 2019
The Efficacy of Immunodetection Point Inhibitors for Advanced Esophageal Cancer

Esophageal cancer is one of the most common malignancies of the digestive system. Esophageal squamous cell carcinoma is the main type of esophageal cancer, accounting for more than 90% of esophageal cancer in China. The 5-year survival rate is about 15%~25%. Many patients with esophageal cancer are initially diagnosed as advanced, and many patients with early initial diagnosis will still relapse and metastasis after radical treatment. Currently, chemotherapy plays a central role in palliative care, but its objective remission rate is only 20-40%, and the median survival is about 8-10 months. However, most of the current phase III studies on targeted drugs for esophageal squamous cell carcinoma have failed, and the treatment of esophageal squamous cell carcinoma has entered the bottleneck stage. Therefore, it is urgent to explore a treatment method that can significantly improve the prognosis of patients with esophageal cancer. In recent years, with the development of biological immunotherapy, immunocheckpoint inhibitors, including pd-1 inhibitors, pd-l1 inhibitors and ctla-4 inhibitors, have achieved significant curative effect and made breakthroughs in the treatment of multiple solid tumors including melanoma, non-small cell lung cancer and kidney cancer. These immunocheckpoint inhibitors have also been tried for esophageal cancer, with initial success in immunotherapy for esophageal cancer. In this observational study, all patients with esophageal cancer who used immunocheckpoint inhibitors in clinical practice were included, without limitation on the number of treatment lines or combinations of different chemotherapy. Through follow-up observation, the purpose of this study was to analyze the efficacy of immunocheckpoint inhibitors for esophageal cancer in the real world, and to explore the differences in the efficacy of immunocheckpoint inhibitors in different stages of treatment, as well as the efficacy of different chemotherapy combinations, so as to provide clinical evidence for the use of immunotherapy for advanced esophageal cancer.

Start: May 2019
Prospective Analysis of Robot-Assisted Surgery

The robot-assisted surgery allows three-dimensional view, detailed access of small structures, depth perception and articulated movements with wide latitude. Thinking about the inclusion of this branch of surgical outcome ICESP encouraged the training of their doctors and other health professionals , and has three tutors in the area of robot- assisted laparoscopic surgery , and various medical clinical staff , already trained , and already perform the procedure in other centers . The da Vinci ® Surgical System ( only existing in the World market) , consisting of one or two consoles for the surgeon and a tutor if necessary was adopted. Ergonomically designed, a stand next to the patient , with four interactive robotic arms , one of them , a vision system for high performance and the other three for exclusive EndoWrist ® instruments . Driven by the latest robotic technology , computer programs , frictionless transmission of manual controls , movements in scale and filtered made by the surgeon in the da Vinci ® System console are translated into precise movements of the instruments EndoWrist ® For surgeons , the da Vinci ® System offers superior 3D viewing with larger surgical precision ergonomic comfort and dexterity . For hospitals , the da Vinci ® Surgical System enables clinical and economic benefits of minimally invasive surgery are applied to a broader base of patients cirúrgicos.The main objective is to evaluate the safety and effectiveness of robotic surgery in the surgical treatment of cancer in operations below, as their specialties : Digestive , Urology , Gynecology , Head and Neck and Thorax . This is a prospective study lasting 36 months , where 1120 patients with surgical diseases in programming for the following operations will be studied : transthoracic esophagectomy ; subtotal gastrectomy with lymphadenectomy ; partial pancreatectomy ; resection of the rectum ; prostatectomy ; cystectomy ; partial nephrectomy ; hysterectomy with or without pelvic and paraaortic lymphadenectomy ; resection of malignant tumors of the mouth and orofaringolaringe and lung lobectomy . Patients will come from the outpatient services of the Institute of Cancer of São Paulo - ICESP

Start: March 2014