Efficacy and Safety of Formoterol in Japanese Patients with COPD
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概要
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Objective This study evaluated the efficacy and safety of the formoterol Turbuhaler® at dosages of 4.5, 9 and 18 μg bid compared with placebo in Japanese patients with COPD. Methods In this randomized, double-blind, placebo-controlled, multicenter study, 36 patients with a pre-bronchodilator FEV1 value within 40 to 70% of the predicted value were randomized to receive formoterol at doses of 4.5, 9, and 18 μg bid, and placebo, for 1 week in a crossover fashion. Results The primary outcome variable, one hour post-dose FEV1 on the last day of the one week treatment period, was significantly higher for all formoterol dosages compared with placebo (p<0.001 for all doses); adjusted g-means for formoterol 4.5, 9 and 18 μg bid, and placebo, were 1.510 L, 1.491 L, 1.520 L and 1.342 L, respectively. All three dosages of formoterol also provided significantly better improvements than placebo in the secondary variables FVC, inspiratory capacity (IC) and morning and evening PEF. Results for IC and PEF indicated a trend towards a larger improvement at higher dosages. Conclusion Treatment with formoterol at dosages of 4.5, 9 and 18 μg bid showed significantly superior effects to placebo on FEV1 in Japanese patients with COPD. The results for some of the secondary variables (IC and PEF) indicated a trend towards larger improvements at higher dosages. All dosages of formoterol were well tolerated in Japanese patients.
著者
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Koga Takeharu
Division Of Respirology Neurology And Rheumatology Department Of Medicine Kurume University School O
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Ichinose Masakazu
The Third Department Of Internal Medicine Wakayama Medical University
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Aizawa Hisamichi
Division Of Respirology Neurology And Rheumatology Department Of Internal Medicine Kurume University
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MINAKATA Yoshiaki
the Third Department of Internal Medicine, Wakayama Medical University, School of Medicine
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Ogawa Hiromasa
Division of Respiratory and Infectious Diseases, Tohoku University Graduate School of Medicine
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Iijima Hideya
Respiratory Medicine, Sendai Open Hospital
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Takahashi Tsuneyuki
Internal Medicine, NTT East Tohoku Hospital
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Miura Motohiko
Respiratory Medicine, Tohoku Rousai Hospital
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Kimura Keiji
The Second Department of Internal Medicine, Hiraga General Hospital
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Kinoshita Masaharu
Respiratory Medicine, Nagata Hospital
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Tsuda Tohru
Internal Medicine, Tsuda Hospital
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Minakata Yoshiaki
The Third Department of Internal Medicine, Wakayama Medical University
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Koga Takeharu
Division of Respirology, Department of Medicine, Kurume University School of Medicine
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