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- W2075565532 abstract "Intravenous augmentation therapy with purified intravenous alpha-1 antitrypsin replaces the deficient protein and is the only currently approved treatment for alpha-1 antitrypsin deficiency (AATD) related lung disease. While augmentation therapy has been available for more than 20 years, there are a limited number of studies evaluating the effect of augmentation on lung function.We examined the decline in forced expiratory volume in one second (FEV(1)) in patients enrolled in the Alpha-1 Foundation DNA and Tissue Bank in relation to the use or not of alpha-1 antitrypsin augmentation therapy. For the purpose of our analysis we included 164 patients with AATD and PI ZZ genotype.Mean age of the patients was 60 years, 52% were females, 94% were white and 78% ex-smokers. The mean FEV(1) at baseline was 1.7 L and the mean FEV(1) % of predicted was 51.3%. The mean follow-up time was 41.7 months. A total of 124 (76%) patients received augmentation therapy (augmented group) while 40 patients (24%) did not received it (non-augmented group). When adjusted by age at baseline, sex, smoking status, baseline FEV(1) % of predicted, the mean overall change in FEV(1) was 47.6 mL/year, favoring the augmented group (DeltaFEV(1) 10.6 +/- 21.4 mL/year) in comparison with the non-augmented group (DeltaFEV(1) -36.96 +/- 12.1 mL/year) (P = 0.05). Beneficial DeltaFEV(1) were observed in ex-smokers and the group with initial FEV(1) % of predicted of <50%. No differences were observed in mortality.In conclusion, augmentation therapy improves lung function in subjects with AATD when adjusted by age, gender, smoking status and baseline FEV(1) % of predicted. The beneficial effects were noted in ex-smoker subjects with FEV(1) below 50% of predicted." @default.
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- W2075565532 date "2009-12-01" @default.
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- W2075565532 title "Alpha-1-antitrypsin augmentation therapy in deficient individuals enrolled in the Alpha-1 Foundation DNA and Tissue Bank" @default.
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- W2075565532 doi "https://doi.org/10.2147/copd.s8577" @default.
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