Active clinical trials for "Polyps"

A Phase 3b Proof-of-Concept study to evaluate the ability of fevipiprant 150 mg and 450 mg, compared with placebo, as add-on to nasal spray standard-of-care (SoC), in reducing endoscopic nasal polyp score in adult (≥ 18 years) patients with nasal polyposis and concomitant asthma.

The study will compare the use of cold snare, hot snare, cold EMR, and hot EMR for polyp resection. Although previous studies have compared two of the potential resection methods, no previous study has evaluated all four of the resection methods.

Primary Objective: To evaluate the efficacy of dupilumab 300 mg every 2 weeks (q2w) compared to placebo on a background of mometasone furoate nasal spray (MFNS) in reducing nasal congestion (NC)/obstruction severity and endoscopic nasal polyp score (NPS) in participants with bilateral nasal polyps (NP). In addition for Japanese participants, reduction in computed tomography (CT) scan opacification of the sinuses was a co-primary objective. Secondary Objectives: To evaluate the efficacy of dupilumab in improving total symptoms score. To evaluate the efficacy of dupilumab in improving sense of smell. To evaluate the efficacy of dupilumab in reducing CT scan opacification of the sinuses (primary objective for Japanese participants). To evaluate ability of dupilumab in reducing proportion of participants who required treatment with systemic corticosteroids (SCS) or surgery for NP. To evaluate the effect of dupilumab on participant reported outcomes and health related quality of life. To evaluate the efficacy of dupilumab 300 mg q2w up to Week 52. To evaluate the efficacy of dupilumab 300 mg q2w up to Week 24 followed by 300 mg every 4 weeks (q4w) up to Week 52. To evaluate the effect of dupilumab in the subgroups of participants with prior surgery and comorbid asthma including non-steroid anti-inflammatory drug exacerbated respiratory disease. To evaluate the safety of dupilumab in participants with bilateral NP. To evaluate functional dupilumab concentrations (systemic exposure) and incidence of treatment emergent anti-drug antibodies.

The purpose of this study is to evaluate safety, tolerability, pharmacokinetics, and pharmacodynamics of PF-06817024 in healthy volunteers, in participants with chronic rhinosinusitis, with nasal polyps and in participants with moderate-to-severe Atopic Dermatitis

This is a Phase 4, open-label, single-arm, multicenter study to evaluate the efficacy and safety of dupilumab subcutaneous (SC) injection monotherapy in Japanese participants aged 18 or older with CRSwNP that is not adequately controlled with existing therapies. Duration of study period (per participant): Screening Period (2 to 4 weeks) Intervention Period (up to 52 weeks±3 days)

Cold snare polypectomy (CSP) is now common practice and has proven to be a safe and effective technique for removal of diminutive polyps. Both thick and thin wire snares are now commonly used for CSP. However, because of their physical characteristics, thick wire snares might leave a higher percentage of residual adenoma at the resection site. Since this may result in a higher risk of recurrence, the technique needs to be optimized. Experts have suggested that a thin wire snare might be more efficient, with a lower risk of residual adenoma at the resection site and consequently a lower risk of recurrence and interval cancer.

Outpatient polyp treatment can be performed in a few different ways but generally involves passing a special type of hysteroscope (3-6 millimetre in diameter) into the womb through which specifically designed miniature operating instruments are passed to remove the polyp(s). At present the most commonly used instruments use an electrical cutting edge. However, a new instrument using a mechanical cutting edge has come to market. In patients having a general anaesthesia the mechanical cutting instrument has been shown to be easier to learn, more effective at completely removing polyps and quicker. However, the instrument is slightly larger, which could potentially cause more discomfort and prolong the procedure in the outpatient setting. Therefore, the investigators want to compare the electrical and mechanical instruments for speed, completeness of polyp removal and patient acceptability.

Hysteroscopy today is considered the gold standard for the diagnosis and treatment of endometrial polyps. In recent years we have used the bipolar energy for resection of polyps by hysteroscopy, becoming a routine clinical practice and universally accepted. Resection of endometrial polyps laser energy has recently begun to be used with satisfactory results, so studies are needed to analyze these results and compare it with the usual techniques . This time in advance of medicine, it is appropriate to introduce minimally invasive procedures , allowing resection of endometrial polyps on an outpatient basis without anesthesia and acceptable to most patients. These procedures assume a lower cost and are associated with a lower surgical risk due to their realization without anesthesia . Hypothesis: Resection of polyps outpatient laser diode has a similar or superior to that of the bipolar electrode tolerability. The diode laser is a viable , quick , simple technique with a high percentage of resection and high degree of satisfaction of patients

The investigators have recently become proficient in a new, and we believe more effective technique for polyp removal. Known as Endoscopic Submucosal Dissection (ESD). ESD involves removing the polyp in one piece. It is preferable to remove the polyp in one piece as it minimises the chance of leaving residual polyp tissue behind. There have also been recent studies overseas that have shown this new technique to be quite effective. In this study, half of the patients will receive the newly developed technique of polyp removal (ESD), while the other half will receive conventional Endoscopic Mucosal Resection (EMR) treatment. This study will allow us to show which technique results in lower recurrence rates and is more effective.

Colorectal cancer accounted for 142,570 new cancer cases and 51,370 cancer deaths in USA in 2010 and worldwide has become the third most common cancer and second leading cause of cancer related deaths. Colonic adenomatous polyps are known precursors of colorectal cancer and endoscopic removal of the polyps prevents development of colon cancer. Removal of such large polyps requires special endoscopic techniques-endoscopic mucosal resection (EMR) and endoscopic submucosal dissection (ESD), which are more technically difficult to perform, labor intensive, time consuming and carries higher risks of complications (bleeding, perforations, etc.). The purpose of this study is to determine the effectiveness and safety of the LumenR Retractor in performing EMR and ESD. It is hypothesized that the use of this modified colonic overtube will simplify colonoscopic removal of difficult polyps, decrease the time needed to complete the procedure and decrease the rate of complications post endoscopic removal of large and flat colonic.