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Dr Adel Elfeky
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Trial forge guidance 1: what is a study within a trial (SWAT)?
S Treweek, S Bevan, P Bower, M Campbell, J Christie, M Clarke, C Collett, ...
Trials 19, 1-5, 2018
2162018
A systematic review of non-randomised evaluations of strategies to improve participant recruitment to randomised controlled trials
HR Gardner, L Albarquoni, A El Feky, K Gillies, S Treweek
F1000Research 9, 2020
362020
Trial Forge Guidance 2: how to decide if a further Study Within A Trial (SWAT) is needed
S Treweek, S Bevan, P Bower, M Briel, M Campbell, J Christie, C Collett, ...
Trials 21, 1-9, 2020
342020
Non-randomised evaluations of strategies to increase participant retention in randomised controlled trials: a systematic review
A Elfeky, K Gillies, H Gardner, C Fraser, T Ishaku, S Treweek
Systematic reviews 9, 1-13, 2020
252020
A protocol for a systematic review of non-randomised evaluations of strategies to increase participant retention to randomised controlled trials
A El Feky, K Gillies, H Gardner, C Fraser, S Treweek
Systematic reviews 7, 1-7, 2018
142018
Using systematic data categorisation to quantify the types of data collected in clinical trials: the DataCat project
E Crowley, S Treweek, K Banister, S Breeman, L Constable, S Cotton, ...
Trials 21, 1-10, 2020
132020
Perioperative oxygen therapy: a protocol for an overview of systematic reviews and meta-analyses
A Elfeky, YF Chen, A Grove, A Hooper, A Wilson, K Couper, M Thompson, ...
Systematic Reviews 11 (1), 140, 2022
32022
Using qualitative methods in pilot and feasibility trials to inform recruitment and retention processes in full-scale randomised trials: a qualitative evidence synthesis
A Elfeky, S Treweek, K Hannes, H Bruhn, C Fraser, K Gillies
Bmj Open 12 (4), e055521, 2022
32022
Biomechanical adaptation to post-stroke visual field loss: a systematic review
A Elfeky, K D’Août, R Lawson, LR Hepworth, NDA Thomas, A Clynch, ...
Systematic Reviews 10, 1-41, 2021
22021
Exploring the perspectives of selectors and collecters of trial outcome data: an international qualitative study
HR Green, A Dawson, A Elfeky, D Pickles, S Treweek, K Gillies
BMC Medical Research Methodology 23 (1), 229, 2023
12023
Using qualitative methods in pilot and feasibility trials to inform recruitment and retention processes in full-scale randomised trials: a qualitative evidence synthesis (vol …
A Elfeky, S Treweek, K Hannes
BMJ OPEN 13 (10), 2023
2023
Using qualitative methods in pilot and feasibility trials to inform recruitment and retention processes in full-scale randomised trials: a qualitative evidence synthesis
A Elfeky, S Treweek, K Hannes, H Bruhn, C Fraser, K Gillies
2023
A good use of time? Providing evidence for how effort is invested in primary and secondary outcome data collection in trials
H Gardner, A Elfeky, D Pickles, A Dawson, K Gillies, V Warwick, ...
Trials 23 (1), 1047, 2022
2022
Selecting and collecting outcomes for clinical trials: an international qualitative study exploring stakeholder perspectives
HR Gardner, A Dawson, A Elfeky, D Pickles, S Treweek, K Gillies
2022
A good use of time?
H Gardner, A Elfeky, D Pickles, A Dawson, K Gillies, V Warwick
2022
Making trials less lossy: is there anything worth knowing from non-randomised evaluations of trial retention strategies?
A El Feky
TRIALS 20, 2019
2019
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Articles 1–16