Update on the General Practice Optimising Structured Monitoring to Improve Clinical Outcomes in Type 2 Diabetes (GP-OSMOTIC) trial: statistical analysis plan for a multi-centre randomised controlled trial.


Journal

Trials
ISSN: 1745-6215
Titre abrégé: Trials
Pays: England
ID NLM: 101263253

Informations de publication

Date de publication:
30 Jan 2019
Historique:
received: 08 09 2018
accepted: 11 12 2018
entrez: 1 2 2019
pubmed: 1 2 2019
medline: 29 5 2019
Statut: epublish

Résumé

General Practice Optimising Structured Monitoring to Improve Clinical Outcomes in Type 2 Diabetes (GP-OSMOTIC) is a multicentre, individually randomised controlled trial aiming to compare the use of intermittent retrospective continuous glucose monitoring (r-CGM) to usual care in patients with type 2 diabetes attending general practice. The study protocol was published in the British Medical Journal Open and described the principal features of the statistical methods that will be used to analyse the trial data. This paper provides greater detail on the statistical analysis plan, including background and justification for the statistical methods chosen, in accordance with SPIRIT guidelines. To describe in detail the data management process and statistical methods that will be used to analyse the trial data. An overview of the trial design and primary and secondary research questions are provided. Sample size assumptions and calculations are explained, and randomisation and data management processes are described in detail. The planned statistical analyses for primary and secondary outcomes and sub-group analyses are specified along with the intended table layouts for presentation of the results. In accordance with best practice, all analyses outlined in the document are based on the aims of the study and have been pre-specified prior to the completion of data collection and outcome analyses. Australian New Zealand Clinical Trials Registry, ACTRN12616001372471 . Registered on 3 August 2016.

Sections du résumé

BACKGROUND BACKGROUND
General Practice Optimising Structured Monitoring to Improve Clinical Outcomes in Type 2 Diabetes (GP-OSMOTIC) is a multicentre, individually randomised controlled trial aiming to compare the use of intermittent retrospective continuous glucose monitoring (r-CGM) to usual care in patients with type 2 diabetes attending general practice. The study protocol was published in the British Medical Journal Open and described the principal features of the statistical methods that will be used to analyse the trial data. This paper provides greater detail on the statistical analysis plan, including background and justification for the statistical methods chosen, in accordance with SPIRIT guidelines.
OBJECTIVE OBJECTIVE
To describe in detail the data management process and statistical methods that will be used to analyse the trial data.
METHODS METHODS
An overview of the trial design and primary and secondary research questions are provided. Sample size assumptions and calculations are explained, and randomisation and data management processes are described in detail. The planned statistical analyses for primary and secondary outcomes and sub-group analyses are specified along with the intended table layouts for presentation of the results.
CONCLUSION CONCLUSIONS
In accordance with best practice, all analyses outlined in the document are based on the aims of the study and have been pre-specified prior to the completion of data collection and outcome analyses.
TRIAL REGISTRATION BACKGROUND
Australian New Zealand Clinical Trials Registry, ACTRN12616001372471 . Registered on 3 August 2016.

Identifiants

pubmed: 30700324
doi: 10.1186/s13063-018-3126-1
pii: 10.1186/s13063-018-3126-1
pmc: PMC6354399
doi:

Substances chimiques

Biomarkers 0
Blood Glucose 0
Glycated Hemoglobin A 0
hemoglobin A1c protein, human 0

Types de publication

Clinical Trial Protocol Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

93

Subventions

Organisme : National Health and Medical Research Council
ID : 1104241
Organisme : Sanofi Australia
ID : N/A

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Auteurs

Sharmala Thuraisingam (S)

Department of General Practice, University of Melbourne, 200 Berkeley St, Carlton, VIC, 3053, Australia. sharmala.thuraisingam@unimelb.edu.au.

Patty Chondros (P)

Department of General Practice, University of Melbourne, 200 Berkeley St, Carlton, VIC, 3053, Australia.

Max Catchpool (M)

Centre for Health Policy, University of Melbourne, Level 4, 207 Bouverie St, Carlton, VIC, 3053, Australia.

Kim Dalziel (K)

Centre for Health Policy, University of Melbourne, Level 4, 207 Bouverie St, Carlton, VIC, 3053, Australia.

Jo-Anne Manski-Nankervis (JA)

Department of General Practice, University of Melbourne, 200 Berkeley St, Carlton, VIC, 3053, Australia.

Jane Speight (J)

School of Psychology, Deakin University, 1 Gheringhap St, Geelong, VIC, 3220, Australia.
The Australian Centre for Behavioural Research in Diabetes, Diabetes Victoria, 570 Elizabeth St, Melbourne, VIC, 3000, Australia.

Elizabeth Holmes-Truscott (E)

School of Psychology, Deakin University, 1 Gheringhap St, Geelong, VIC, 3220, Australia.
The Australian Centre for Behavioural Research in Diabetes, Diabetes Victoria, 570 Elizabeth St, Melbourne, VIC, 3000, Australia.

Ralph Audehm (R)

Department of General Practice, University of Melbourne, 200 Berkeley St, Carlton, VIC, 3053, Australia.

Jason Chiang (J)

Department of General Practice, University of Melbourne, 200 Berkeley St, Carlton, VIC, 3053, Australia.

Irene Blackberry (I)

John Richards Centre for Rural Ageing Research, Latrobe University, 133 McKoy St, West Wodonga, VIC, 3689, Australia.

David O'Neal (D)

Department of General Practice, University of Melbourne, 200 Berkeley St, Carlton, VIC, 3053, Australia.

Kamlesh Khunti (K)

Diabetes Research Centre, University of Leicester, Gwendolen Rd, Leicester, LE1 7RH, UK.

James Best (J)

Lee Kong Chian School of Medicince, Nanyang Technological University, 50 Nanyang Ave, Singapore, 639798, Singapore.

John Furler (J)

Department of General Practice, University of Melbourne, 200 Berkeley St, Carlton, VIC, 3053, Australia.

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Classifications MeSH