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Asthma clinical trials

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NCT ID: NCT01405963 Completed - Asthma Clinical Trials

Double-blind, Multiple Dose Study of Tezepelumab (AMG 157) in Adults With Mild Atopic Asthma

Start date: October 31, 2011
Phase: Phase 1
Study type: Interventional

The purpose of this study is to assess the late and early asthmatic response after an allergen inhalation challenge in adults with mild atopic asthma after receiving multiple doses of tezepelumab (AMG 157), as well as the safety, tolerability, immunogenicity, and pharmacokinetics of multiple doses of tezepelumab in adults with mild atopic asthma.

NCT ID: NCT01405625 Completed - Asthma Clinical Trials

Improving Parent Understanding of Instructions About Asthma Care

Start date: July 2011
Phase: N/A
Study type: Interventional

Asthma has an especially great impact on poor urban children and their families. In addition to higher asthma prevalence and morbidity, those in low SES urban areas are at risk for low health literacy. Low health literacy is associated with poorer asthma outcomes. The provision of a written asthma action plan has been shown to help with asthma management and to reduce hospitalizations and ER visits. Poor urban families who may have low literacy may need an alternative asthma action plan to convey the treatment plan. This pilot study proposes to investigate whether a plain language asthma action plan can improve parent understanding and adherence with medication instructions, compared to standard written materials, among parents of children with asthma. This is an RCT in which parents of children with asthma will be randomized to either receive a pictogram-based low literacy asthma action plan, or a standard action plan (AAAAI), to examine whether those who receive the low literacy plan have improved asthma action plan knowledge when presented with a hypothetical scenario. A second part of the study is to examine whether providers who are given the pictogram-based low literacy asthma action plan will be more likely to counsel about certain aspects of asthma management (eg. need for daily medications even when sick, spacer use, confusion between everyday and rescue inhaler)compared to providers who receive use a standard action plan (AAAAI). This is an RCT in which pediatric providers are randomized to counsel a hypothetical patient using the pictogram-based action plan or the standard action plan (AAAAI).

NCT ID: NCT01403467 Completed - Acute Asthma Clinical Trials

Impact of Continuous Positive Airway Pressure on the Treatment of Acute Asthma Exacerbation

Start date: April 2009
Phase: Phase 4
Study type: Interventional

This current study aimed to demonstrate the effectiveness of the addition of CPAP to the current conventional therapy in terms of airway obstruction improvement in acute asthma patients.

NCT ID: NCT01402986 Completed - Asthma Clinical Trials

A Phase 2b, Randomized, Double-blind Study to Evaluate the Efficacy of Tralokinumab in Adults With Asthma

Start date: August 2011
Phase: Phase 2
Study type: Interventional

The purpose of this study is to determine whether the addition of tralokinumab to standard asthma medication is effective in the treatment of adults with asthma

NCT ID: NCT01400906 Completed - Asthma Clinical Trials

Inhalation of Corticosteroids in Smoking and Non-smoking Asthmatics.

Start date: July 20, 2011
Phase: Phase 2
Study type: Interventional

People with asthma suffer from breathlessness because the small tubes (bronchioles) that carry air in and out of the lungs become inflamed and narrow. Steroids reduce the inflammation, and are commonly used to control asthma, but they do not work well in some asthmatics, particularly those who smoke. This study is done to find out more about why smokers with asthma do not benefit from steroid treatment. In this study, the effect of Flixotide (fluticasone propionate), a steroid widely used to treat asthma, is tested in smokers and non-smokers with mild asthma. 16 smokers and 16 non-smokers, aged 18−55 years will be enrolled in this study. Subjects will take each of the following treatments: - 100 micrograms Flixotide twice daily for 7 days; - 500 micrograms Flixotide twice daily for 7 days; and - placebo (dummy medicine) twice daily for 7 days. Study design: subjects will have a screening visit (over 2 days), and will take part in 3 treatment periods (which are separated by interval of at least 14 days); a follow-up visit is scheduled 7 days after the last intake of study treatment. The order in which order the subjects will take the treatments is defined at random. Total study duration: about 11 weeks. To test the effects of Flixotide, the subject's responses to : - an inhaled allergen test - a PC20 methacholine test - blood, urine and sputum PD markers will be analysed. This study will take place in 2 centres: 1 in the United Kingdom and 1 in Belgium. The units will recruit participants by advertising (newspaper, radio, and websites), word of mouth, from volunteer databases, and via the centres' websites.

NCT ID: NCT01400217 Completed - Asthma Clinical Trials

Qvar Versus Clenil, a General Practice Research Database Study

Start date: January 1991
Phase: N/A
Study type: Observational

This study will compare the absolute and relative effectiveness of asthma management in patients on inhaled corticosteroid (ICS) maintenance therapy as either extra-fine-particle or larger-particle formulation beclomethasone dipropionate (BDP) via metered-dose inhalers (MDIs) using the propellant hydrofluoroalkane propellant (HFA-BDP), namely Qvar® MDI compared with Clenil® MDI.

NCT ID: NCT01399411 Completed - Asthma Clinical Trials

Agricultural Health Study Follow-up

Start date: July 5, 2011
Phase:
Study type: Observational

Background: - The Agricultural Health Study (AHS) is looking at the long-term health effects of farming exposures including pesticides, crops, and animals. The chronic health effects of exposure to pesticides are easier to study in farmers and their spouses. They know what chemicals they use and tend to live in the same place for most of their adult lives. AHS participants are expected to report any changes in their health. This includes any new medical conditions. Researchers want to follow up on these reports to confirm their accuracy. Objectives: - To follow up AHS participants who have self-reported that they have a new disease and confirm their diagnosis. Eligibility: - Current AHS participants. Design: - Researchers will confirm self-reported changes in medical conditions by contacting the AHS participant to ask for more information. - The AHS participant will give permission for researchers to contact their doctor to look at their medical records. They will also be asked to provide a cheek swab or saliva sample. - Diseases of interest are rheumatoid arthritis, lupus, and Sjogren s Syndrome. Other diseases will be followed up in the future. Other diseases will be followed up in the future.

NCT ID: NCT01395589 Completed - Asthma Clinical Trials

Rapid vs Maintenance Vitamin D Supplementation in Deficient Children With Asthma to Prevent Exacerbations.

Start date: February 2011
Phase: Phase 1
Study type: Interventional

The role of vitamin D in respiratory health remains uncertain. Whether vitamin D reduces clinically important exacerbations of childhood asthma remains uncertain. We compared rapid to maintenance vitamin D repletion analyzed by baseline vitamin D level.

NCT ID: NCT01393340 Completed - Asthma Clinical Trials

Clinical and Biological Effects of Anti-IgE (Omalizumab) in Patients With Bilateral Nasal Polyposis and Asthma

Start date: December 2006
Phase: Phase 2
Study type: Interventional

This pilot study is a double-blinded, randomized controlled, two-centre trial in which subjects will receive 4 to 8 (subcutaneous administered) doses of medication (Omalizumab or placebo) (dose and dosing interval calculated on body weight and baseline total serum IgE). During the treatment period and follow-up, the clinical efficacy of the treatment will be assessed by evaluation of symptoms, Quality of Life questionnaire, morning Peak Expiratory Flow measurement, smell test, nasal endoscopy, CT-scan, peak nasal inspiratory flow and spirometry. Biological activity will be evaluated by measuring peripheral and local (in serum, in nasal secretions, biopsies) markers of inflammation. Study hypothesis 1. Evaluation of the efficacy and safety of anti-IgE (Omalizumab) in patients with nasal polyposis and comorbid asthma. 2. Exploration of anti-IgE effects on local and systemic metabolism of IgE in nasal polyposis 3. Clinical assessment of the IgE theory in the pathogenesis of nasal polyps

NCT ID: NCT01392859 Completed - Asthma Clinical Trials

Characterization of the Role of Histamine in Children With Asthma

Start date: June 2011
Phase: Phase 2/Phase 3
Study type: Interventional

Asthma, a chronic disease which produces significant morbidity and mortality in children, is a significant health problem to a large segment of society. Despite considerable advances in the diagnosis and treatment of asthma over the past several years, a sizeable portion of patients do not respond to the "core" treatments. The investigators are now learning that the underlying pathophysiology of disease is different among patients with asthma therefore; treatments which are beneficial in some patient groups may be not achieve affect in other groups. Antihistamines have been studied in the past for the treatment of asthma. These studies have shown that there may be a beneficial effect of antihistamines in patients with allergic asthma where histamine likely plays a large role in disease and treatment response. However, there is not enough evidence to include these drugs in the standard treatment of asthma. The investigators hypothesize that histamine plays a definable, significant role in disease pathogenesis and treatment response in children with allergic asthma. The investigators plan to test this overall hypothesis through two specific aims. The first aim will characterize the relative contribution of histamine in allergic vs. non-allergic asthma. This aim will be accomplished by comparison of the microvasculature response to histamine in children with allergic asthma and children with non-allergic asthma, measured by histamine iontophoresis with laser Doppler (HILD) monitoring, to determine potential phenotype-associated differences in the pharmacodynamic response to histamine.