View clinical trials related to Cough.
Filter by:To assess the effect of a single doses of 20 mg ambroxol hydrochloride on cough reflex sensitivity to citric acid, capsaicin, adenosine triphosphate (ATP) and distilled water in patients with acute cough related to upper respiratory tract infection
The primary objective of this study was to assess the effect of a single dose of gefapixant 100 mg on cough reflex sensitivity to various challenge agents (capsaicin, citric acid, adenosine triphosphate [ATP], and distilled water) in healthy and chronic cough participants.
The aim of the study is to assess the prevalence of bronchial hyperresponsiveness (BHR) in non-smoking adults with chronic cough and the prevalence of BHR in patients with upper airway cough syndrome (UACS) and gastroesophageal reflux disease (GERD), to evaluate the relationship between BHR and cough reflex sensitivity, to assess the diagnostic accuracy of methacholine challenge test (MCT) in cough variant asthma (CVA) with special regard to its discriminating cut off value between CVA and other causes of chronic cough, particularly GERD, to estimate prognostic value of BHR, fractional exhaled nitric oxide (FeNO) and induced sputum eosinophil count in predicting response to asthma treatment. Patients diagnosed with a chronic cough will undergo the standard diagnostic work-up recommended by experts for patients with a chronic cough, including methacholine challenge test (MCT) and an at least 4-week period of causal treatment. Patients with BHR in MCT will be treated with - in first step B2-agonist and inhaled corticosteroid (ICS) for at least 4 weeks, if improvement is not significant in next steps with leukotriene receptor antagonist (LTRA) or systemic corticosteroid. A good treatment response, evaluated by visual analogue scale (VAS), Leicester Cough Questionnaire (LCQ) and cough challenge will confirm the diagnosis of the disease. A statistical analysis will consist of the frequency of BHR in a chronic cough, correlation between the results of MCT and cough reflex sensitivity in capsaicin inhalation test and cut-off point for MCT to discriminate asthma from other causes of a chronic cough.
To investigate the safety and tolerability of ascending repeated oral doses of BAY1817080 in healthy volunteers(Part1). To investigate the safety, tolerability and efficacy of BAY1817080 in patients with refractory chronic cough(Part2).
Study of the efficacy, safety, and tolerability of serlopitant for the treatment of refractory chronic cough
Chronic cough is an important clinical problem in primary care and sub-specialty practice. Besides the distress experienced by patients with chronic cough, significant healthcare resources are expended to understand the role of gastroesophageal reflux, asthma and post-nasal drip in understanding their contribution to cough. Obstructive sleep apnea (OSA) is common in patients with chronic cough. More importantly, treatment of OSA with continuous positive airway pressure (CPAP) has led to improvement in cough for chronic cough patients. Mechanisms by which OSA therapy with CPAP can improve cough includes beneficial effects on reflux and airway inflammation. The aim of this study is to definitively establish that CPAP therapy for treatment of OSA in chronic cough patients improves cough. While these patients with chronic cough are not routinely screened and treated for OSA, this study aims to evaluate these chronic cough patients with screening questionnaires for OSA and if necessary with polysomnography and randomize them to either CPAP or sham CPAP for 6 weeks.
The Pilot of Zinc Acetate to Improve Chronic Cough (ZICO) is a study of 36 patients with chronic refractory cough that will be used to (1) assess if zinc acetate (150 mg/day) will improve patient reported measures of cough, (2) to establish if treatment with zinc acetate is well tolerated, and (3) to determine if the trial logistics are feasible.
Pain, cough, hypertension and tachycardia are frequent events during extubation due to a secondary stimulation of mechanoreceptors located in the airway. The mechanical effect of the endotracheal tube activates autonomic reflexes, a situation that could potentially impair the clinical condition of patients. Previous studies have used remifentanil during emergence and extubation showing good results to control this reflex response. However, it is unknown so far, the optimal effect site concentration (Ce) of remifentanil to allow a better control of these events with a low incidence of adverse effects after have received inhaled anesthesia plus remifentanil for anesthetic maintenance. This study will determine the Ce of remifentanil associated with a lower proportion of cough and hyperdynamic circulatory response during extubation for emergency after exposure to sevoflurane or desflurane.
This study seeks to identify ways to help parents safely use cough/cold medications with their children. The study focuses on 3 key tasks that have been found to be difficult for parents: 1) decision-making about whether medicines should be given based on a child's age, 2) use of active ingredient information to determine which medications are safe to give together, and 3) medication dosing. Specific ways that labels and dosing tools can be changed to improve parent understanding and ability to use pediatric cough and cold medications will be tested. This includes looking at whether including age restriction information on the front panel helps parents make better decisions about whether a medication should be given to a child, as well as whether presence of a specific warning or pictogram can help improve this understanding. In addition, the role of font size, including a box around ingredients, and use of a specific warning to look at and compare active ingredients, will be examined to see if these can help parents decide if two medications can be given together safely. Finally, dosing charts with pictograms of dosing tools, and provision of certain dosing tools, can lead to fewer parent dosing errors. A label/dosing tool combination that incorporates what is learned from the first part of the study will be developed based on findings from the first part of the study, and then tested to see whether this improves parent understanding and use of pediatric cough and cold medicines. Hypotheses include: 1) changes in labels and dosing tools, such as including explicit warnings, and pictographic warnings/instructions can improve parent understanding and ability to act on of medication instructions, 2) parents with low health literacy and/or LEP will especially benefit from strategies such as explicit wording, warnings, and pictogram, and 3) parents receiving the comprehensive labeling and dosing strategy will have a better understanding of appropriate use of cough/cold medications, including fewer dosing errors, compared to standard labels. A multi-part experiment will be conducted. Findings will be merged with known evidence around health literacy best practices to develop a comprehensive, consumer-centered strategy for English and Spanish-speaking parents. Pilot testing of the comprehensive strategy in comparison to existing labels will then take place.
Cervical cancer is the third most common genital cancer worldwide. The diagnosis of cervical cancer is performed with the cervical biopsy which is guided by the colposcopy. The colposcopy guided cervical biopsy creates pain and several methods have been reported to overcome the pain related with this procedure. Local anesthetic agent injection into the cervix has been studied and found to be effective and also, forced coughing was compared with local anesthetic injection and it is found to be more effective. In fact local injections can create the pain by itself.However no study compared the effect of forced coughing to local anesthetic spray. The study aims to evaluate the comparison of forced coughing with local anesthetic spray with respect to perceived pain during colposcopy guided biopsy.