Evidence map›Paper›PMID 25906770›Full record

Trial reportTrials2015

Fibrinogen concentrate versus placebo for treatment of postpartum haemorrhage: study protocol for a randomised controlled trial.

Nadine Aawar, Raza Alikhan, Daniel Bruynseels, Rebecca Cannings-John, Rachel Collis, John Dick, Christopher Elton, Roshan Fernando, Judith Hall, Kerry Hood and 11 more

Open access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Trials, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 2 pooled it
15.5field-weighted citation impact, top 1% 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

8 citing papers in PubMed, 2 syntheses or guidelines pooled it, 36 citations in OpenAlex.

  1. Pooled it
  2. Antifibrinolytic drugs for treating primary postpartum haemorrhage.The Cochrane database of systematic reviews · 2018
    Pooled it
  3. Article
  4. The Role of Systemic Inflammatory Indices in Predicting Composite Adverse Outcomes of Peripartum Hemorrhage Treated with Fibrinogen Concentrate.Indian journal of hematology & blood transfusion : an official journal of Indian Society of Hematology and Blood Transfusion · 2025
    Article
  5. Article
  6. Article
  7. Article
  8. Review
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

21 authors at 6 institutions in 1 country.

Nadine AawarInnovation, Methodology and Engagement, South East Wales Trials Unit, Institute of Translation, Cardiff University School of Medicine, Neuadd Meirionnydd, Heath Park, Cardiff, CF14 4YS, UK. aawarn@cf.ac.uk.
Raza AlikhanDepartment of Haematology, Cardiff and Vale University Health Board, Cardiff, UK. raza.alikhan@wales.nhs.uk.
Daniel BruynseelsDepartment of Anaesthetics and Pain Control, Cardiff and Vale University Health Board, Cardiff, UK. danielbruynseels@doctors.org.uk.
Rebecca Cannings-JohnInnovation, Methodology and Engagement, South East Wales Trials Unit, Institute of Translation, Cardiff University School of Medicine, Neuadd Meirionnydd, Heath Park, Cardiff, CF14 4YS, UK. CanningsRL@cardiff.ac.uk.
Rachel CollisDepartment of Anaesthetics and Pain Control, Cardiff and Vale University Health Board, Cardiff, UK. rachel.collis@wales.nhs.uk.
John DickDepartment of Anaesthetics, University College Hospital, London, UK. john.dick@uclh.nhs.uk.
Christopher EltonDepartment of Anaesthetics, Leicester Royal Infirmary, Leicester, UK. chris.d.elton@uhl-tr.nhs.uk.
Roshan FernandoDepartment of Anaesthetics, University College Hospital, London, UK. r.fernando@btinternet.com.
Judith HallDepartment of Anaesthetics and Pain Control, Cardiff and Vale University Health Board, Cardiff, UK. hallj@wales.nhs.uk.
Kerry HoodInnovation, Methodology and Engagement, South East Wales Trials Unit, Institute of Translation, Cardiff University School of Medicine, Neuadd Meirionnydd, Heath Park, Cardiff, CF14 4YS, UK. hoodk1@cf.ac.uk.
Nicki LackDepartment of Obstetrics, University College Hospital, London, UK. nicki.lack@uclh.nhs.uk.
Shuba MallaiahDepartment of Anaesthetics, Liverpool's Women's Hospital, Liverpool, UK. shuba.mallaiah@nhs.net.
Helena MayburyDepartment of Obstetrics, Leicester Royal Infirmary, Leicester, UK. Helena.j.maybury@uhl-tr.nhs.uk.
Jacqueline NuttallInnovation, Methodology and Engagement, South East Wales Trials Unit, Institute of Translation, Cardiff University School of Medicine, Neuadd Meirionnydd, Heath Park, Cardiff, CF14 4YS, UK. NuttallJ@cardiff.ac.uk.
Shantini ParanjothyInstitute of Primary Care and Public Health, Cardiff University School of Medicine, Cardiff, UK. ParanjothyS@cf.ac.uk.
Rachel RaymentDepartment of Obstetrics, Cardiff and Vale University Health Board, Cardiff, UK. rachel.rayment@wales.nhs.uk.
Alexandra ReesDepartment of Obstetrics, Cardiff and Vale University Health Board, Cardiff, UK. alexandra.rees2@wales.nhs.uk.
Julia SandersInnovation, Methodology and Engagement, South East Wales Trials Unit, Institute of Translation, Cardiff University School of Medicine, Neuadd Meirionnydd, Heath Park, Cardiff, CF14 4YS, UK. sandersj3@cardiff.ac.uk.
Julia TownsonInnovation, Methodology and Engagement, South East Wales Trials Unit, Institute of Translation, Cardiff University School of Medicine, Neuadd Meirionnydd, Heath Park, Cardiff, CF14 4YS, UK. townson@cardiff.ac.uk.
Andrew WeeksDepartment of Women's and Children's Health, University of Liverpool, Liverpool, UK. aweeks@liverpool.ac.uk.
Peter CollinsDepartment of Haematology, Cardiff and Vale University Health Board, Cardiff, UK. peter.collins@wales.nhs.uk.
Cardiff University · GBCardiff and Vale University Health Board · GBLeicester Royal Infirmary · GBUniversity College Hospital · GBUniversity of Liverpool · GBUniversity College London · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPostpartum haemorrhage (PPH) is a major cause of maternal morbidity. Bleeding is caused by a combination of physical causes, such as failure of the uterus to contract or operations, and is made worse by impairment of the blood clotting system. A number of studies have shown that low levels of the blood clotting factor fibrinogen are associated with progression of bleeding, the need for invasive interventions and transfusions of red blood cells and fresh frozen plasma (FFP). This trial will investigate whether early infusion of fibrinogen concentrate during a major PPH, with the aim of correcting a low fibrinogen to a level that is normal for delivery, based on the Fibtem test, reduces the total number of allogeneic blood products (red blood cells, FFP, cryoprecipitate and platelets) transfused after study medication until discharge, compared to placebo. METHODS/

designThis is a prospective, randomised, double-blind placebo controlled trial. Women will enter an observational phase and if their Fibtem levels fall they will be randomised in the interventional phase. A total of 60 women will be randomised and women are eligible for the trial if they meet all of the following inclusion criteria: age 18 years or over, gestation ≥24 + 0 weeks, haemorrhage of about 1500 ml and on-going bleeding without another complication or haemorrhage of about 1000 ml and caesarean section/uterine atony/placental abruption/placenta praevia/cardiovascular instability or microvascular oozing. Participants with a Fibtem A5 < 16 mm will be randomly allocated to receive either a bolus infusion of fibrinogen concentrate or placebo (isotonic saline). The dose of fibrinogen concentrate or placebo will be calculated based on the woman's ideal body weight for height and the measured Fibtem A5 with the aim of increasing the Fibtem A5 to 23 mm. DISCUSSION: The trial aims to provide evidence on the efficacy and safety of fibrinogen concentrate during acute bleeding in an obstetric setting.

trial registrationISRCTN ref: ISRCTN46295339 (01.07.2013); EudraCT: 2012-005511-11 (28.11.2012), UKCRN ref: 13940.

Indexed as

AdolescentAdultBlood Coagulation TestsBlood TransfusionClinical ProtocolsDouble-Blind MethodDrug Administration ScheduleDrug Dosage CalculationsFemaleFibrinogenHemostasisHemostaticsHumansInfusions, ParenteralPostpartum HemorrhagePregnancyFibrinogenHemostatics

Identifiers

PMID25906770
PMCPMC4408576
OpenAlexW2130249111

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.