Active clinical trials for "Respiratory Tract Infections"

The primary objective of this study is to evaluate the effectiveness of ingesting an alkylamide-rich echinacea root product (Quick Defense, Gaia Herbs) for 2 days immediately following each onset of acute respiratory illness (ARI) symptomatology during a 12-week period in the winter and early spring in women. Hypothesis: Subjects randomized to Quick Defense compared to placebo over a 12-week period will experience reduced ARI symptomatology, both acutely during each ARI episode and collectively over the entire 12-week study period.

A phase 2, Randomized, Observer-blind, Multicenter, Dose-Ranging Study to Evaluate the Immunogenicity, Safety, and Tolerability of the plant-made H5 VLP Influenza vaccine adjuvanted with Alhydrogel or Glucopyranosyl-lipid adjuvant in squalene emulsion (GLA-SE), in healthy adults 18-60 years of age.

A phase I/II trial conducted in a single centre, observer-blind, randomized, dose-ranging, placebo-controlled study to evaluate the safety, tolerability, and immunogenicity of a single intramuscular injection of plant-based Seasonal Quadrivalent VLP Influenza Vaccine administered to healthy adults 18-49 years of age. A total of one hundred and twenty (120) subjects will be randomized in four (4) groups of 30 subjects to receive one injection of either a low, a medium, or a high dose level of VLP 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 primary goal of this project is to determine whether behavioral training in mindfulness meditation or moderate intensity sustained exercise will lead to reductions in acute respiratory infection (ARI) illness, such as common cold and influenza like illness. Specifically, this project aims to: Determine whether an 8-week training program in mindfulness meditation, as compared to the control group, will lead to significant reductions in incidence, duration, and severity of ARI illness. Determine whether an 8-week training program in moderate intensity sustained exercise, as compared to the control group, will lead to reductions in incidence, duration, and severity of ARI illness. Assess whether any observed reductions in ARI illness are accompanied by fewer ARI-related health care visits and less time lost to productive work (reduced absenteeism). Compare the potential benefits of mindfulness meditation to those from moderate intensity sustained exercise. Discern potential mediating factors and causal pathways that might help explain how these interventions lead to improved ARI illness-related outcomes. The investigators' preliminary findings suggest substantial benefit of these interventions in terms of reduced incidence, duration and severity of ARI illness, with corresponding reductions in days of work lost to illness. If the proposed research confirms these findings, there will be major implications for public and private health-related policy and practice, as well as for scientific knowledge regarding health maintenance and disease prevention.

The aim of this study is to evaluate the usefulness in Russian general practice of C-reactive protein testing in patients with acute cough or lower respiratory tract infections. In addition to studying the effect of C-reactive protein testing on the prescription of antibiotics, the purpose is to find out whether the frequency of referral to radiography could be reduced.

The aim of the intervention is to examine the effect of a combination of the two bacterial strains BB-12 and LGG, provided for 6 month, on the prevalence of infections and allergic manifestations in small children, and how a combination of BB-12 and LGG affects the immune system, gastrointestinal tract and the microbiota. Children are enrolled during 2 winter seasons.

The primary objective is to assess the immunogenicity and safety and tolerability of two consecutive doses of H5 VLP Influenza vaccine given 21 days apart, at three dose levels: in part A: 20 µg, 30 µg and 45 µg combined with Alhydrogel® 1%, or 45 µg without Alhydrogel®, compared to the placebo, (100mM phosphate buffer + 150mM NaCl + 0.01% Tween 80).

The purpose of this study is to test the effectiveness of an enhanced oral hygiene protocol in preventing pneumonia among nursing home residents.

The primary objective is to assess the safety and tolerability of two consecutive doses of plant-based H5 VLP, (H5N1) pandemic influenza vaccine combined with Alhydrogel®, given 21 days apart, at three dose levels: 5µg, 10µg and 20µg., compared to the placebo, and combined with Alhydrogel®.

To assess protection against early life infections through supplementation of mothers during pregnancy to the newborns' growth, morbidity, immune status intra and extra-uterine.