Active clinical trials for "Respiratory Tract Diseases"

A phase I trial conducted in a single centre, observer-blind, randomized, dose-ranging, placebo-controlled study to evaluate the safety, tolerability, and immunogenicity of 2 intramuscular injections of plant-based H7 VLP Influenza Vaccine administered to healthy adults, 18-60 years of age.

The purpose of this study is to evaluate the safety, reactogenicity and immunogenicity of GSK Biologicals' NTHi candidate vaccine in adults, administered for the first time in humans.

This study (A7881006) is the first multiple dose study in moderate asthmatic subjects and aims to determine the safety and efficacy of PF-00610355 when subjects take PF-00610355 on a daily basis for 4 weeks in subjects maintained on inhaled corticosteroid.

A phase II trial multicenter, observer-blind, randomized, dose-ranging, placebo-controlled study to evaluate the immunogenicity, safety, and tolerability of a single intramuscular injection of plant-derived Seasonal VLP Quadrivalent Influenza Vaccine administered to healthy adults 18-49 years of age. A total of three hundred subjects will be randomized in four (4) groups of 75 subjects to receive one injection of either a low, a medium, or a high dose level of the quadrivalent VLP influenza vaccine or the placebo preparation (100 millimolar (mM) phosphate buffer + 150 mM sodium chloride (NaCl) + 0.01% Tween 80).

The purpose of this study is to assess the safety, reactogenicity and immunogenicity of 8 different formulations of investigational NTHI vaccine in current and former smokers, 50-70 years of age.

This study will provide information regarding the sequential administration of two vaccines adjuvanted with AS01. The aim of this study is to understand immunogenicity and safety of NTHi-Mcat vaccine when administered sequentially after Shingrix vaccine and to compare to the immunogenicity of NTHi-Mcat vaccine administered alone. This study will also provide information regarding whether a specific time period is required between the administration of these two different vaccines containing the same adjuvant- AS01 components. The population of this study will include healthy smokers and ex-smokers of 50 to 80 years of age which will be used as a proxy for the COPD population.

Physical inactivity is a consequence of chronic diseases and on Chronic Obstructive Pulmonary Disease patients is an independent predictor of the risk of hospitalizations and early mortality. As physical inactivity is a modifiable risk factor with healthy lifestyle interventions, health professionals should clinically assess physical activity as a vital sign of patients' general physical condition. SmartReab study aims to characterize physical activity in daily life of 100 chronic respiratory patients at baseline when starting Pulmonary Rehabilitation, at discharge time of the program, at 6 months and 1 year follow-up. The Pulmonary Rehabilitation program will be individually tailored according to patients needs and goals settled within the Rehabilitation team and it will take place at Hospital Pulido Valente, from Centro Hospitalar Universitário Lisboa Norte, in Lisbon, Portugal. To access physical activity in daily life patients will participate in a telemonitoring study for 4 days using a smartphone and an oximeter and also answer to the International Physical Activity Questionnaire. SmartReab technology will provide data of physical activity intensity, heart rate and oxygen levels during awakening periods of daytime. To associate physical activity with other aspects related with health and the impact of Pulmonary Rehabilitation, patients will also take a 6 minute walk test and answer questionnaires related with self-perceived health status, impact of respiratory symptoms on quality of life, dyspnea impact on general mobility and on daily life situations, and also anxiety and depression feelings. The research hypothesis is that Pulmonary Rehabilitation will have a positive impact on physical activity in the short, medium and long terms.

This trial will evaluate the effect of acetazolamide (375 mg per day) vs. placebo on lung water content by ultrasound at acute altitude exposure in patients with Chronic Obstructive Pulmonary Disease (COPD).

It is known that the pretreatment with exogenous interferon blocks SARS-CoV-2 infection, but intervention is much more effective if administered prior to infection. In this study the primary aim is to investigate 28-day regime of nasal interferon gama use in healthy participants for COVID-19 and other respiratory infections prevention.

The primary safety objective of this study is to assess the safety of split- virion inactivated H1N1 vaccine with and without adjuvant when administered at the 7.5,15 or 30 mcg dose. The primary immunogenicity objective is to assess the antibody response following each dose of split- virion inactivated A(H1N1) vaccine with and without adjuvant. Participants will include up to 2200 healthy persons age 3 and older who have no history of novel influenza H1N1 2009 infection or novel influenza H1N1 2009 vaccination. This is a randomized, double-blinded, Phase II study in healthy males and non-pregnant females, aged 3 years and older. Subjects will be stratified by elders (equal to or more than 61 years), adults (18-60 years), adolescents (12-17 years) and children (3-11 years), elders and adolescents will be randomized into 5 dose groups (adjuvanted H1N1 vaccine of 7.5,15 or 30 mcg per dose or non-adjuvanted H1N1 vaccine of 15 or 30 mcg per dose), children will be randomized into 4 dose groups (adjuvanted H1N1 vaccine of 7.5 or 15 mcg per dose or non-adjuvanted H1N1 vaccine of 15 or 30 mcg per dose), adults will be randomized into 6 dose groups (adjuvanted H1N1 vaccine of 7.5,15 or 30 mcg per dose or non-adjuvanted H1N1 vaccine of 15 or 30 mcg per dose or placebo), 110 subjects per dose and age stratum will be to receive intramuscular influenza H1N1 vaccine. The H1N1 vaccine will be administered at Day 0 and Day 21. Following immunization, safety will be measured by assessment of adverse events through 21 days following the last vaccination (Day 42 for those receiving both doses), serious adverse events and new-onset chronic medical conditions through 6 months post the final vaccination (Day 180 after second vaccination), and reactogenicity to the vaccine for 8 days (Day 0-7) following each vaccination. Immunogenicity testing will be hemagglutination inhibiting (HAI) on serum obtained on the day 21 of each vaccination (prior to vaccination), on Day 21 after first vaccination, and 21 days following the second vaccination (Day 42).