Loading clinical trials...
Loading clinical trials...
Browse 3,705 clinical trials for asthma. Find studies that match your criteria and connect with research centers.
Find trials near:
Showing 1701-1720 of 3,705 trials
NCT04715243
Objective: To determine whether NIV delivered through helmet interface reduces intubation rate among patients with COVID-19 ARDS compared to face-mask NIV and HFNC. Design, setting \& participants: Two-center randomized clinical trial of 360 patients with mild to moderate ARDS and confirmed COVID-19 requiring non-invasive ventilation between August 2020 to January 2021. The patients with respiratory rate (RR) more than 30/min or oxygen saturation (SpO2) less than 90% or PaO2/FiO2 ratio less than 300 despite standard oxygen therapy by face mask (\<15 L/min) who present to Royal hospital or Sultan Qaboos University Hospital (SQUH) emergency department, medical wards or intensive care unit (ICU). Intervention: Patients will be randomly assigned (block randomization) to either face-mask NIV, HFNC or Helmet NIV. The helmet is a transparent hood that covers the entire head of the patient and has a rubber collar neck seal. Main outcome and measures: The primary outcome is the rate of endotracheal intubation at 28-days. Secondary outcomes include hospital mortality at 28 and 90 days, NIV free days, invasive ventilator free days and hospital length of stay. Expected results: We assume the failure rate of Helmet NIV to be 30%, failure rate of HFNC to be 40% and failure rate of face-mask NIV to be 50%. A sample size of 360 patients (120/group) will achieve a power of 0.90 at a significance level of 0.05. To account for 10% dropout rate, the total sample required is 396 subjects(132/group).
NCT03465280
Recurrent Respiratory Papillomatosis (RRP) causes wart-like growths in the airway which can make it difficult to breathe, speak and carry out normal everyday activities. It is a rare condition affecting all ages, but is more common and aggressive in children than in adults, affecting 4 in every 100,000 children. There is no known cure for RRP, but symptoms are checked through regular hospital visits, with multiple therapies or procedures under general anaesthetic needed to remove or shrink the growths which can grow back quickly. The problem is that nobody knows which therapies or procedures work best. Aim: To identify which RRP treatments currently used in National Health Service (NHS) hospitals within the United Kingdom (UK) are the most effective and safest in the short- and long-term. It will also identify which patients respond best to specific treatments, and those who are at higher risk of experiencing a complication after treatment. Method: Collect information from usual patient care and quality of life questionnaire responses in a secure online database. Participation in this study requires patient/parent/guardian consent. This observational study does not require patients to undergo any additional intervention as part of the research.