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Published in: BMC Pregnancy and Childbirth 1/2018

Open Access 01-12-2018 | Research article

The treatment of booking gestational diabetes mellitus (TOBOGM) pilot randomised controlled trial

Authors: David Simmons, Jodie Nema, Chloe Parton, Lisa Vizza, Annette Robertson, Rohit Rajagopal, Jane Ussher, Janette Perz

Published in: BMC Pregnancy and Childbirth | Issue 1/2018

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Abstract

Background

We piloted a randomised controlled trial (RCT) comparing pregnancy outcomes among women with booking gestational diabetes (GDM) receiving immediate or deferred treatment.

Methods

Consecutive, consenting women < 20 weeks gestation, with GDM risk factors attending the hospital book-in clinic, completed an oral glucose tolerance test (OGTT). Clinicians were blinded to OGTT results. Women fulfilling World Health Organisation GDM criteria were randomised to either clinic referral /ongoing treatment (Treated Group n = 11), or no treatment (No Treatment Group n = 10). Women without ‘Booking GDM’ (‘Decoys’ n = 58) and those in the No Treatment Group had a repeat OGTT at 24–28 weeks (with GDM treated if diagnosed). Midwives and mothers were asked to complete surveys and attend focus groups before and after the study respectively regarding their experiences and expectations of the study protocol.

Results

Sufficient women completed each step of the RCT. Gestation at OGTT was late at 18 ± 2 weeks with Treated and No Treatment groups largely similar. At 24–28 weeks gestation, GDM was present in 8/9 (89%) in the No Treatment group and 11/56 (20%) Decoys. NICU admission was highest in the Treated group (36% vs 0% p = 0.043), largely due to small for gestational age, and Large for Gestational Age babies greatest in the No Treatment group (0% vs 33% p = 0.030).

Conclusion

An RCT deferring ‘Booking GDM’ treatment is feasible. Most women with untreated ‘Booking GDM’ in mid 2nd trimester had GDM at 24–28 weeks. Early treatment may have both benefits and harms. A full RCT is needed.

Trial registration

Australia New Zealand Clinical Trials Registry ACTRN12615000974505. Registered 17th May 2015; URL: https://​www.​anzctr.​org.​au/​Trial/​Registration/​TrialReview.​aspx?​id=​369100&​isReview=​true Retrospectively Registered.
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Metadata
Title
The treatment of booking gestational diabetes mellitus (TOBOGM) pilot randomised controlled trial
Authors
David Simmons
Jodie Nema
Chloe Parton
Lisa Vizza
Annette Robertson
Rohit Rajagopal
Jane Ussher
Janette Perz
Publication date
01-12-2018
Publisher
BioMed Central
Published in
BMC Pregnancy and Childbirth / Issue 1/2018
Electronic ISSN: 1471-2393
DOI
https://doi.org/10.1186/s12884-018-1809-y

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