Active clinical trials for "Adenoma"

This study was designed to check the efficacy of a new oral medical drug treatment, namely Cabergoline, for the treatment of Cushing Disease due to pituitary adenoma. Background: Cabergoline is a Dopamine 2 receptor agonist. Corticotroph adenoma has shown to have the D2 receptor in in vitro studies.

This study is a prospective randomized study to evaluate the role of NBI for improving complete resection rate of sessile serrated adenoma/polyp (SSA/P). The authors will enroll consecutive patients who underwent colon polypectomy for SSA/P during colonoscopy. The authors will inspect resection margin of SSA/P using white light endosocpy (WLE) or NBI after randomization for the evaluation of remnant lesion. Additional resection will be performed for suspicious of remnant lesion, and then 4 biopsies from 4 quadrants of margin for evaluation of complete resection.

Because the ampulla of Vater is strategically located at the confluence of the pancreatic and common bile ducts, endoscopic resection of papillary neoplasms may be technically different from endoscopic mucosal resection in other parts of the gastrointestinal tract. The best method of endoscopic ablation and the optimal period for surveillance have not been established.

Water-aided method for colonoscopy can be broadly subdivided into two major categories. Water Immersion (WI), characterized by suction removal of the infused water predominantly during the withdrawal phase of colonoscopy, and Water Exchange (WE), characterized by suction removal of infused water predominantly during the insertion phase of colonoscopy. Several studies showed that WE significantly reduces pain compared to WI and colonoscopy with traditional air insufflation (AI), increases the number of unsedated procedures and adenoma detection rate (ADR), in particular proximal ADR. This randomized controlled trial will be a direct comparison of Air Insufflation, Water Immersion and Water Exchange to test the hypothesis that WAC (particularly WE) would significantly decrease pain score during colonoscopy in diagnostic patients. Several other secondary outcomes will also be analyzed.

A prospective multicenter randomized controlled trial (RCT) comparing water exchange (WE) colonoscopy and carbon dioxide (CO2) insufflation in terms of right colon combined adenoma miss rate (AMR) and hyperplastic polyp miss rate (HPMR) by tandem inspection.

The PREEMPT CRC study is a prospective multi-center observational study to validate a blood-based test for the early detection of colorectal cancer by collecting blood samples from average-risk participants who will undergo a routine screening colonoscopy.

This will be a prospective randomized controlled trial comparing CO2 insufflation and WE in terms of right colon combined adenoma miss rate (AMR) and hyperplastic polyp miss rate (HPMR) by tandem inspection. It will be a single-site study conducted in Taiwan.

The NICE study is a prospective, multi-site study to train and validate a blood-based, glycoproteomic test for the early detection of advanced adenoma and colorectal cancer by collecting blood samples and associated relevant clinical information from average-risk participants who undergo routine screening colonoscopy as well as participants undergoing colonoscopy for surveillance or diagnostic indications

The CRC DRAW study will assess the sensitivity and specificity of the blood-based, Next-Gen CRC Screening Test for the detection of CRC.

During transsphenoidal resection of pituitary tumors and cysts, surgery is performed by a neurosurgeon and ear nose and throat surgeon. The pituitary tumor or cyst is reached by making a small hole in the back of the nose into the bottom of the skull. The surgeon is able to see the pituitary and tumor with an endoscope and remove the tumor through the hole. Surgery on the pituitary can cause disruption in the secretion of ACTH and cause adrenal failure (lack of cortisol secretion) which can cause nausea, vomiting, low blood pressure, and rarely can be fatal. There is no consensus among endocrinologists and neurosurgeons about the use of perioperative steroids in pituitary patients. Traditionally, all patients undergoing pituitary surgery were given steroids before, during, and after surgery because of the assumption that there would be some compromise in the amount of ACTH released by the pituitary as a result of surgical trauma. Studies have failed to show, however, that ACTH secretion is in fact compromised during transsphenoidal pituitary microsurgery. As a result, there are some centers that routinely give perioperative steroids to all patients undergoing pituitary surgery and there are some centers that do not routinely give perioperative steroids. There are several retrospective and prospective studies that have addressed this issue and have shown that withholding perioperative steroids is safe, but there has never been a prospective study comparing the two approaches. Objectives: The goal of this study is to prospectively compare two approaches to the perioperative management of patients undergoing transsphenoidal resection of a pituitary tumor or cyst. One protocol includes the routine use of perioperative steroids and the other does not. The investigators hypothesis, based on previous studies, is that patients who are adrenally sufficient do not routinely need to be treated with perioperative steroids. The investigators also hypothesize that the use of perioperative steroids may be associated with a higher rate of adverse outcomes