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- W2097920708 abstract "Background Acute exacerbations of COPD reflect in part an inappropriate host response to abnormal bacterial colonization. Orally administered inactivated nontypeable Haemophilus influenzae (NTHi) can drive a specific T-cell response that by promoting intrabronchial phagocytosis down-regulates bronchus inflammation. Methods Subjects with recurrent exacerbations of COPD were studied in a randomized, multicenter, double-blind, placebo-controlled trial, to test efficacy of an NTHi oral immunotherapeutic (HI-164OV). This report describes the outcome in 38 subjects with severe COPD defined as having an FEV1 ≤ 50% of predicted normal. Results Exacerbations defined as an increase in volume and purulence of sputum were reduced by 16% (not significant) in the active group. However, moderate-to-severe exacerbations (defined as requiring corticosteroid therapy) were reduced by 63% (P = .05). The proportion with any acute exacerbation was little changed with treatment, but the proportion with episodes requiring corticosteroid therapy was reduced by 56% (P = .07). The mean duration of episodes was reduced by 37% (P = .01) and prescribed courses of antibiotics were reduced by 56% (P = .03) following therapy. Exacerbations requiring admission into hospital were reduced by 90% (P = .04) in the active group. No specific adverse effect was detected. Conclusions Treatment of severe COPD with frequent exacerbations with HI-164OV was safe and effective, especially with respect to reduction in parameters of severity. Trial registration Australian New Zealand Clinical Trials Registry, www.anzctr.org.au; identifier: ACTRN012606000074594. Acute exacerbations of COPD reflect in part an inappropriate host response to abnormal bacterial colonization. Orally administered inactivated nontypeable Haemophilus influenzae (NTHi) can drive a specific T-cell response that by promoting intrabronchial phagocytosis down-regulates bronchus inflammation. Subjects with recurrent exacerbations of COPD were studied in a randomized, multicenter, double-blind, placebo-controlled trial, to test efficacy of an NTHi oral immunotherapeutic (HI-164OV). This report describes the outcome in 38 subjects with severe COPD defined as having an FEV1 ≤ 50% of predicted normal. Exacerbations defined as an increase in volume and purulence of sputum were reduced by 16% (not significant) in the active group. However, moderate-to-severe exacerbations (defined as requiring corticosteroid therapy) were reduced by 63% (P = .05). The proportion with any acute exacerbation was little changed with treatment, but the proportion with episodes requiring corticosteroid therapy was reduced by 56% (P = .07). The mean duration of episodes was reduced by 37% (P = .01) and prescribed courses of antibiotics were reduced by 56% (P = .03) following therapy. Exacerbations requiring admission into hospital were reduced by 90% (P = .04) in the active group. No specific adverse effect was detected. Treatment of severe COPD with frequent exacerbations with HI-164OV was safe and effective, especially with respect to reduction in parameters of severity." @default.
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- W2097920708 date "2010-04-01" @default.
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- W2097920708 title "Oral Immunotherapy With Inactivated Nontypeable Haemophilus influenzae Reduces Severity of Acute Exacerbations in Severe COPD" @default.
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- W2097920708 doi "https://doi.org/10.1378/chest.09-1382" @default.
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