Evidence map›Paper›PMID 33177675›Full record

ReviewPediatric research2021

Antenatal corticosteroids: a reappraisal of the drug formulation and dose.

Alan H Jobe, Matthew Kemp, Augusto Schmidt, Tsukasa Takahashi, John Newnham, Mark Milad

Open access · hybridAbstract readReview
In one paragraph

Review in Pediatric research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed, 5 pooled it
4.6field-weighted citation impact, top 4% of its field
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

34 citing papers in PubMed, 5 syntheses or guidelines pooled it, 62 citations in OpenAlex.

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  14. Insulin-Like Growth Factor 2 Reverses Synaptic and Cognitive Deficits in Fetal Growth Restriction Mice.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2025
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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

6 authors at 3 institutions in 3 countries.

Alan H JobeDivision of Obstetrics and Gynecology, The University of Western Australia, Perth, WA, Australia. Alan.Jobe@cchmc.org.
Matthew KempDivision of Obstetrics and Gynecology, The University of Western Australia, Perth, WA, Australia.
Augusto SchmidtDivision of Neonatology, Department of Pediatrics, University of Miami, Miami, FL, USA.
Tsukasa TakahashiDivision of Obstetrics and Gynecology, The University of Western Australia, Perth, WA, Australia.
John NewnhamDivision of Obstetrics and Gynecology, The University of Western Australia, Perth, WA, Australia.
Mark MiladMilad Pharmaceutical Consulting, Plymouth, MI, USA.
Tohoku University Hospital · JPUniversity of Western Australia · AUUniversity of Miami · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We review the history of antenatal corticosteroid therapy (ACS) and present recent experimental data to demonstrate that this, one of the pillars of perinatal care, has been inadequately evaluated to minimize fetal exposure to these powerful medications. There have been concerns since 1972 that fetal exposures to ACS convey risk. However, this developmental modulator, with its multiple widespread biologic effects, has not been evaluated for drug choice, dose, or duration of treatment, despite over 30 randomized trials. The treatment used in the United States is two intramuscular doses of a mixture of 6 mg betamethasone phosphate (Beta P) and 6 mg betamethasone acetate (Beta Ac). To optimize outcomes with ACS, the goal should be to minimize fetal drug exposure. We have determined that the minimum exposure needed for fetal lung maturation in sheep, monkeys, and humans (based on published cord blood corticosteroid concentrations) is about 1 ng/ml for a 48-h continuous exposure, far lower than the concentration reached by the current dosing. Because the slowly released Beta Ac results in prolonged fetal exposure, a drug containing Beta Ac is not ideal for ACS use. IMPACT: Using sheep and monkey models, we have defined the minimum corticosteroid exposure for a fetal lung maturation. These results should generate new clinical trials of antenatal corticosteroids (ACS) at much lower fetal exposures to ACS, possibly given orally, with fewer risks for the fetus.

Indexed as

Prenatal CareAdrenal Cortex HormonesAnimalsDrug CompoundingDrug Dosage CalculationsFemaleFetal Organ MaturityGestational AgeHumansLungModels, BiologicalPregnancyPremature BirthRisk AssessmentRisk FactorsAdrenal Cortex Hormones

Identifiers

PMID33177675
PMCPMC7892336
OpenAlexW3105796402

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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 OpenQuestion graph.