Efficacy and Safety of Indacaterol, a New 24-hour<i>β</i><sub><i>2</i></sub>-Agonist, in Patients with Asthma: A Dose-Ranging Study
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Bibliographic record
Abstract
BACKGROUND: Indacaterol is a new once-daily inhaled beta(2)-agonist in clinical development for asthma as a component of a fixed-dose combination with an inhaled corticosteroid. OBJECTIVES: To investigate the efficacy and safety of indacaterol in patients with chronic persistent asthma. METHODS: A total of 115 patients were randomized in a double-blind, incomplete-block cross-over design to sequences of four 7-day treatment periods (separated by 7-day washouts) with indacaterol 100, 200, 300, 400, or 600 micro g or placebo, once daily, via single-dose dry-powder inhaler. After the fourth washout, patients received 1 day of open-label formoterol 12 mu g twice daily. Forced expiratory volume in 1 second (FEV(1)) was measured for 24 hours post-dose on days 1 and 7. RESULTS: For standardized (with respect to time) FEV(1) area under the curve at 22 to 24 hours (AUC(22-24h)) on day 1, indacaterol doses >or=200 micro g were superior to placebo (p < 0.05) and similar or greater than formoterol 12 micro g twice daily. By day 7, mean differences from placebo in FEV(1) standardized AUC(22-24h) were 0.08, 0.16, 0.15, 0.11, and 0.16 L for indacaterol 100, 200, 300, 400, and 600 micro g, respectively (all p < 0.05 vs. placebo). Mean FEV(1) for indacaterol doses >or= 200 micro g on day 7 was higher than placebo (p < 0.05) pre-dose and at all post-dose time points. AEs were generally mild in severity; no serious AEs occurred. No clinically meaningful differences were observed between treatments in any safety assessments. CONCLUSIONS: Once-daily indacaterol demonstrated sustained 24-hour bronchodilator efficacy, with similar efficacy on days 1 and 7, and was generally well tolerated.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it