Active clinical trials for "Cough"

Condition of the State: (terminated, recruiting, etc.) Terminated Study Design: Main Objective: Compare the frequency and intensity of coughing at the time of extubation with two infusions of remifentanil that predict a plasma concentration (PC) of 3 - 4 and 2 - 3 ng/ml, through the technique of target controlled anesthesia

Cough variant asthma (CVA), subtype of bronchial asthma, is considered to be one of the most common causes of chronic cough in different cough guidelines of United States, Europe, China and other countries. From a multicenter survey in China, over one third of chronic cough is caused by CVA, which is higher than western countries. CVA differs from classic asthma, usually manifesting a symptom of only coughing without wheezing or dyspnea and particularly coughing at night. With less clinical manifestation and medical intervention, CVA patients are easily be neglected and misdiagnosed, and 30-40% of them will develop to typical asthma in the next few years. Currently there's no specific therapy recommendation for CVA in GINA. Although cough guidelines in China recommend that CVA patients should be treated as typical asthma, no recommendation on details about ICS/LABA dosage and duration. There are only a few sporadic CVA therapy researches with small sample size. Two studiesfound that CVA patients can't get cough symptom relief even after treating by low dose of ICS/LABA for 3 months. Some patients' cough symptom relapses during the 24-week follow-up phase after treating by ICS/LABA for 3 months. Overall, the best treatment of CVA is not yet clear. GINA 2018 emphasize that asthma need long-term management. Euro-SMART study found that budesonide/formoterol 2 inhalation twice daily plus as needed can reduce daytime asthma symptoms and night-time awakenings, as well as reduce exacerbation risk more than 1 inhalation twice daily. Based on the above reasons, We assume that increase the dosage of ICS/LABA can decrease relapse rate in CVA patients with severe cough. This multi-center, randomized, controlled clinical trial can help to clarify the best dosage of budesonide/formoterol of CVA in China.

When diagnosing chronic cough (cough lasting longer than 8 weeks), the physician nowadays very often relies on the patient's narrative and description. In our research project we want to find out whether a cough detector can continuously and reliably record the cough, how the user-friendliness of the cough detector is assessed and whether this continuous recording can support the physician in his diagnosis.

Chronic cough is a common complain of patients in respiratory clinic and its global prevalence was up to 9.6%. Persistent cough of unexplained origin is a significant health issue that occurs in up to 5% to 10% of patients seeking medical assistance for a chronic cough and from 0% to 46% of patients referred to specialty cough clinics. Previous studies showed that sputum prostaglandin D2( PGD2) and prostaglandin E2 (PGE2) concentrations were significantly higher in chronic cough. And some research showed that Inhaled PGE2 /PGF2α /PGD2 / PGI2/ 6-oxo-PGF1a could induced cough. And PGE2 /PGF2α/PGI2/thromboxane A2 (TXA2) also increased the sensitivity of the cough reflex. All these five primary prostaglandins were synthesized though the metabolism of arachidonic acid via the cyclooxygenase pathway. Indomethacin is a strong inhibitor of cyclooxygenase , which decrease the level of prostaglandins in airway. The investigator's preliminary study showed that indomethacin could relieve cough and improve cough sensitivity of some patients with refractory cough. Therefore this randomized, double-blind, placebo-controlled trial were designed to investigate whether indomethacin can relive cough in patients with refractory cough and to explore the possible mechanism of indomethacin in improving cough in patients with refractory cough.

This single-center, randomized, double-blind, placebo-controlled trial was undertaken at an outpatient clinic in Shuguang Hospital. Newly diagnosed cough variant asthma adult patients with the T.C.M. pattern of pathogenic-wind are randomly divided into treatment and control group, with 60 patients in each group. Clinical observation of the Respiratory Impedance and Inflammation in Cough Variant Asthma adults reated in Combination of Chanqin Granules.

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.

It is believed that the suppository consisting of guaiacol, menthol, camphor and eucalyptol, by their pharmacological properties already established for each component, has the ability to reduce the signs and symptoms related to upper respiratory infections in a manner equivalent (not inferior) to medicine used as a comparator in this study and higher than the suppository containing only guaiacol concentration of 12.5 mg.

Patients with Sjogren's disease have destruction of the mucus secreting cells in the airway. This manifestation of the disease leads to the common complaint of persistent dry cough that is seen in many of these patients. This study is aimed at determining whether the regular use of Pulmozyme will result in decreased cough and improved quality of life.

The study examines if diagnostic ultrasound imaging of larynx and diaphragm can be as accurate as transnasal fiberoptic laryngoscopy in visualizing the larynx during NIV and Mechanically Assisted Cough interventions.

The sensitivity of a persons cough reflex can be measured by getting them to breath in (inhale) irritant chemicals. The purpose of this clinical research study is to test the sensitivity of the cough reflex to a variety of chemicals that can be inhaled to see if coughing responses are different between healthy people and people with respiratory problems that make them cough.