Lenient rate control versus strict rate control for atrial fibrillation : a statistical analysis plan for the Danish Atrial Fibrillation (DanAF) randomized clinical trial
© 2023. The Author(s)..
BACKGROUND: A key decision in the treatment of atrial fibrillation is choosing between a rhythm control strategy or a rate control strategy as the main strategy. When choosing rate control, the optimal heart rate target is uncertain. The Danish Atrial Fibrillation trial is a randomized, multicenter, two-group, superiority trial comparing strict rate control versus lenient rate control in patients with either persistent or permanent atrial fibrillation at inclusion. To prevent bias arising from selective reporting and data-driven analyses, we developed a predefined description of the statistical analysis.
METHODS: The primary outcome of this trial is the physical component score of the SF-36 questionnaire. A total of 350 participants will be enrolled based on a minimal important difference of 3 points on the physical component score of the SF-36 questionnaire, a standard deviation of 10 points, a statistical power of 80% (beta of 20%), and an acceptable risk of type I error of 5%. All secondary, exploratory, and echocardiographic outcomes will be hypothesis-generating. The analyses of all outcomes will be based on the intention-to-treat principle. We will analyze continuous outcomes using linear regression adjusting for "site," type of atrial fibrillation at inclusion (persistent/ permanent), left ventricular ejection fraction (≥ 40% or < 40%), and the baseline value of the outcome (all as fixed effects). We define our threshold for statistical significance as a p-value of 0.05 and assessments of clinical significance will be based on the anticipated intervention effects defined in the sample size and power estimations. Thresholds for both statistical and clinical significance will be assessed according to the 5-step procedure proposed by Jakobsen and colleagues.
DISCUSSION: This statistical analysis plan will be published prior to enrolment completion and before any data are available and is sought to increase the validity of the DANish Atrial Fibrillation trial.
TRIAL REGISTRATION: Clinicaltrials.gov NCT04542785. Registered on Sept 09, 2020.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:24 |
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| Enthalten in: |
Trials - 24(2023), 1 vom: 01. Apr., Seite 250 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Cold, Isak Mazanti [VerfasserIn] |
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| Links: |
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| Themen: |
Atrial fibrillation |
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| Anmerkungen: |
Date Completed 04.04.2023 Date Revised 05.04.2023 published: Electronic ClinicalTrials.gov: NCT04542785 Citation Status MEDLINE |
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| doi: |
10.1186/s13063-023-07247-7 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM355104873 |
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| 500 | |a ClinicalTrials.gov: NCT04542785 | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a © 2023. The Author(s). | ||
| 520 | |a BACKGROUND: A key decision in the treatment of atrial fibrillation is choosing between a rhythm control strategy or a rate control strategy as the main strategy. When choosing rate control, the optimal heart rate target is uncertain. The Danish Atrial Fibrillation trial is a randomized, multicenter, two-group, superiority trial comparing strict rate control versus lenient rate control in patients with either persistent or permanent atrial fibrillation at inclusion. To prevent bias arising from selective reporting and data-driven analyses, we developed a predefined description of the statistical analysis | ||
| 520 | |a METHODS: The primary outcome of this trial is the physical component score of the SF-36 questionnaire. A total of 350 participants will be enrolled based on a minimal important difference of 3 points on the physical component score of the SF-36 questionnaire, a standard deviation of 10 points, a statistical power of 80% (beta of 20%), and an acceptable risk of type I error of 5%. All secondary, exploratory, and echocardiographic outcomes will be hypothesis-generating. The analyses of all outcomes will be based on the intention-to-treat principle. We will analyze continuous outcomes using linear regression adjusting for "site," type of atrial fibrillation at inclusion (persistent/ permanent), left ventricular ejection fraction (≥ 40% or < 40%), and the baseline value of the outcome (all as fixed effects). We define our threshold for statistical significance as a p-value of 0.05 and assessments of clinical significance will be based on the anticipated intervention effects defined in the sample size and power estimations. Thresholds for both statistical and clinical significance will be assessed according to the 5-step procedure proposed by Jakobsen and colleagues | ||
| 520 | |a DISCUSSION: This statistical analysis plan will be published prior to enrolment completion and before any data are available and is sought to increase the validity of the DANish Atrial Fibrillation trial | ||
| 520 | |a TRIAL REGISTRATION: Clinicaltrials.gov NCT04542785. Registered on Sept 09, 2020 | ||
| 650 | 4 | |a Randomized Controlled Trial | |
| 650 | 4 | |a Multicenter Study | |
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Atrial fibrillation | |
| 650 | 4 | |a Randomized trial | |
| 650 | 4 | |a Rate control | |
| 650 | 4 | |a Statistical analysis plan | |
| 700 | 1 | |a Feinberg, Joshua Buron |e verfasserin |4 aut | |
| 700 | 1 | |a Brandes, Axel |e verfasserin |4 aut | |
| 700 | 1 | |a Davidsen, Ulla |e verfasserin |4 aut | |
| 700 | 1 | |a Dixen, Ulrik |e verfasserin |4 aut | |
| 700 | 1 | |a Dominguez, Helena |e verfasserin |4 aut | |
| 700 | 1 | |a Gang, Uffe Jakob Ortved |e verfasserin |4 aut | |
| 700 | 1 | |a Gluud, Christian |e verfasserin |4 aut | |
| 700 | 1 | |a Hadad, Rakin |e verfasserin |4 aut | |
| 700 | 1 | |a Kristensen, Kit Engedal |e verfasserin |4 aut | |
| 700 | 1 | |a van Le, Doan Tuyet |e verfasserin |4 aut | |
| 700 | 1 | |a Nielsen, Emil Eik |e verfasserin |4 aut | |
| 700 | 1 | |a Olsen, Michael Hecht |e verfasserin |4 aut | |
| 700 | 1 | |a Pedersen, Ole Dyg |e verfasserin |4 aut | |
| 700 | 1 | |a Raymond, Ilan Esra |e verfasserin |4 aut | |
| 700 | 1 | |a Sajadieh, Ahmad |e verfasserin |4 aut | |
| 700 | 1 | |a Soja, Anne Merete Boas |e verfasserin |4 aut | |
| 700 | 1 | |a Jakobsen, Janus Christian |e verfasserin |4 aut | |
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