Evidence mapPaperPMID 39446608Full record

Trial reportActa obstetricia et gynecologica Scandinavica2024

A double-blind, randomized, placebo-controlled trial of melatonin as an adjuvant agent for induction of labor: The MILO trial.

Diane Quach, Ben W Mol, Jamie Springer, Erin Tully, Chloe Higgins, Madeleine Jones, David Hennes, Yen Pham, Kamala Swarnamani, Kirsten Palmer and 1 more

Abstract readRandomized Controlled TrialMulticenter Study
In one paragraph

Trial report in Acta obstetricia et gynecologica Scandinavica, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Trial
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors.

Diane QuachDepartment of Obstetrics and Gynecology, Monash Women's, Monash Health, Clayton, Victoria, Australia.ORCID 0000-0002-2638-209X
Ben W MolDepartment of Obstetrics and Gynecology, Monash University, Clayton, Victoria, Australia.ORCID 0000-0001-8337-550X
Jamie SpringerDepartment of Obstetrics and Gynecology, Monash Women's, Monash Health, Clayton, Victoria, Australia.
Erin TullyDepartment of Obstetrics and Gynecology, Monash Women's, Monash Health, Clayton, Victoria, Australia.
Chloe HigginsDepartment of Obstetrics and Gynecology, Monash Women's, Monash Health, Clayton, Victoria, Australia.
Madeleine JonesDepartment of Obstetrics and Gynecology, Monash Women's, Monash Health, Clayton, Victoria, Australia.
David HennesDepartment of Obstetrics and Gynecology, Monash Women's, Monash Health, Clayton, Victoria, Australia.
Yen PhamThe Ritchie Centre, Hudson Institute of Medical Research, Clayton, Victoria, Australia.
Kamala SwarnamaniThe Ritchie Centre, Hudson Institute of Medical Research, Clayton, Victoria, Australia.
Kirsten PalmerDepartment of Obstetrics and Gynecology, Monash Women's, Monash Health, Clayton, Victoria, Australia.
Miranda Davies-TuckThe Ritchie Centre, Hudson Institute of Medical Research, Clayton, Victoria, Australia.ORCID 0000-0003-1918-5538

Funding

National Health and Medical Research Council APP1123498
6 · The paper itself

Abstract

introductionMelatonin has been suggested to have a biological role in the onset and progress of labor. We tested the hypothesis that the addition of melatonin during an induction of labor will reduce the need for a cesarean birth. MATERIAL AND

methodsThis trial underwent protocol amendments that are detailed in the main text of the article. This trial is registered with the Australian and New Zealand Clinical Trials Registry (ACTRN12616000311459). At a multi-center health service including secondary and tertiary obstetric hospitals, we performed a randomized, double-blind, placebo-controlled trial in women with a singleton cephalic pregnancy, free of significant maternal or perinatal complications who were undergoing induction of labor (with or without cervical ripening). Women were randomized to 10 mg melatonin vs placebo, with cervical ripening as required, and then 6-h during their induction of labor to a maximum of four doses or until birth. The primary outcome was cesarean birth. Secondary outcomes included labor, maternal, and neonatal outcomes. Data were analyzed using intention to treat. Sub-group analyses based on mode of ripening and parity were also performed.

resultsBetween 2019 and 2021 we randomized 189 women (103 to melatonin and 86 to placebo). The study was prematurely terminated due to logistical complications resulting from the COVID-19 pandemic. Cesarean rates were 28/103 (27.2%) in the melatonin group vs 20/84 (23.3%) in the placebo group (RR 1.17 95% CI 0.71-1.92). There were no significant differences in rate of cesarean birth between the melatonin and placebo groups for failure to progress (13.4% and 9.3%, respectively, RR 1.46; 95% CI 0.64-3.32) or suspected fetal distress (10.7% and 10.5%, respectively, RR 1.02; 95% CI 0.44-2.34). The melatonin group had significantly lower rates of spontaneous vaginal birth within 24 h (35.0% vs. 50.0%; RR 0.70 95% CI 0.50-0.98). The rates of secondary outcomes such as total length of labor, rate of postpartum hemorrhage, and instrumental birth were comparable. Babies born in the melatonin group were more likely to need admission to the special care nursery, namely for hypoglycemic monitoring (18.5% vs. 8.1% RR 2.26; 95% CI 1.00-5.10).

conclusionsIn women undergoing induction of labor, melatonin does not reduce the cesarean section rate. Melatonin use intrapartum may also be associated with neonatal hypoglycemia.

Indexed as

Cesarean SectionLabor, InducedMelatoninAdultCervical RipeningDouble-Blind MethodFemaleHumansPregnancyPregnancy OutcomeMelatonincesarean birthhypoglycemiainduction of labormelatoninobstetricspharmacokinetics

Identifiers

PMID39446608
PMCPMC11609988

What Socratic holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.