Evaluating the effects of early administration of fibrinogen concentrate in adults with major traumatic haemorrhage.

ISRCTN ISRCTN67540073
DOI https://doi.org/10.1186/ISRCTN67540073
Secondary identifying numbers 19181
Submission date
05/08/2015
Registration date
06/08/2015
Last edited
12/09/2023
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Injury, Occupational Diseases, Poisoning
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English summary of protocol

Background and study aims
Injury is a leading cause of death and disability worldwide. Around 7,800 people die in England every year, and many thousands more are left severely disabled. Uncontrolled bleeding is the main cause of death in 40% of cases. Transfusion therapy (which includes giving patients additional red blood cells, fresh frozen plasma, platelets and cryoprecipitate) is an important part of emergency treatment for major bleeding. Although the standard transfusion therapy is routinely followed in all hospitals, we are not sure whether by giving an additional source of fibrinogen, with a drug called fibrinogen concentrate, as quickly as possible works better than standard practice. The main objective of this clinical trial is to test whether it is possible to give fibrinogen concentrate within 45 minutes of admission to hospital to adult trauma patients with severe bleeding.

Who can participate?
People aged at least 16 with severe bleeding and shock.

What does the study involve?
Patients are randomly allocated to one of two groups. Those in group 1 are given 6g of fibrinogen concentrate within 45 minutes of being admitted to hospital, in addition to standard major haemorrhage therapy. Those in group 2 are given a placebo in additional to the standard major haemorrhage therapy. The effects of the two treatment regimens are then compared, focusing in particular on differences in blood test results and on clinical outcomes such as bleeding and organ failure.

What are the possible benefits and risks of participating?
The potential benefits associated of this study include early stopping of major bleeding which may lead to reduced need for transfusions of red cells, plasma or platelets. This, in turn, may lead to improved clinical outcomes such as reduced stays on intensive care, or total in hospital stay. It may have an effect on reducing the number of deaths, but this is not yet known. The theoretical risk of giving higher dose fibrinogen is to cause an increased chance of thromboembolism (blood clot) both in the vein (such as a pulmonary embolism or deep venous thrombosis) or in the artery (such as a heart attack or a stroke).

Where is the study run from?
The John Radcliffe Hospital (lead centre), the Royal London Hospital, Southampton General Hospital and the Edinburgh Royal Infirmary (UK)

When is the study starting and how long is it expected to run for?
October 2015 to April 2017

Who is funding the study?
CSL Behring

Who is the main contact?
Dr Nicola Curry

Contact information

Dr Nicola Curry
Scientific

University of Oxford
Churchill Hospital
Old Road
Oxford
OX3 7LE
United Kingdom

ORCiD logoORCID ID 0000-0002-3849-0688

Study information

Study designRandomised controlled trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Other
Study typeTreatment
Participant information sheet Not available in web format, please use contact details to request a participant information sheet
Scientific titleA multi-centre, randomised, double blind, placebo-controlled trial evaluating the effects of early administration of fibrinogen concentrate in adults with major traumatic haemorrhage.
Study acronymE-FIT 1 v1.0
Study objectivesThe main objective of this clinical trial is to test whether it is possible to give fibrinogen concentrate within 45 minutes of admission to hospital to adult trauma patients with severe bleeding.
Ethics approval(s)Oxford REC C, 15/07/2015, ref: 15/SC/0316
Health condition(s) or problem(s) studiedTopic: Injuries and Emergencies, Haematology; Subtopic: Injuries and Emergencies (All Subtopics), Haematology (All Subtopics); Disease: Injuries and Emergencies, Non-malignant Haematology
InterventionEarly supplementation of Fibrinogen concentrate (FgC) in patients with major traumatic haemorrhage. Patients will be randomised to receive either 6g fibrinogen concentrate or placebo within 45 minutes of admission to hospital.
Intervention typeOther
Primary outcome measureCurrent primary outcome measure as of 24/08/2018:
1. Mean fibrinogen levels over time by treatment arm at admission, At 2 hours from admission during first active haemorrhage and 7 days from admission

Previous primary outcome measures:
1. Feasibility of administering fibrinogen concentrate within 45 minutes of admission.
2. Proportion of patients with at least one Clauss fibrinogen level ≥ 2 g/L during active haemorrhage.
Secondary outcome measuresCurrent secondary outcome measure as of 24/08/2018:
1. Transfusion volumes, in numbers of units, for red cells, plasma, platelets and cryoprecipitate at 3, 6 hours and 24 hours from admission

Previous secondary outcome measures:
1. Transfusion volumes, in numbers of units, for red cells, plasma, platelets and cryoprecipitate at 3, 6 hours and 24 hours from admission
2. Clauss fibrinogen levels at day 7 post randomisation
3. ROTEM measures of coagulation (EXTEM and FIBTEM, where available) to day 7 post randomisation
4. Thrombotic events: clinically apparent venous thromboembolism (DVT, PE) and arterial events (MI, stroke) to day 28 from randomisation
5. Duration of and/or requirement for organ support to day 28 from admission, as defined by the CTCOFR score
6. All-cause mortality (including death from bleeding) at 3, 6 and 24 hours and up to day 28 from admission. Mortality at 1 year by longer term follow up
7. Hospital stay including ICU/HDU stay
8. Quality of life at 28 day from admission
9. Proportion of patients achieving haemostasis at 3 hours from admission (defined using a trial specific haemorrhage assessment tool)
Overall study start date01/10/2015
Completion date30/04/2017

Eligibility

Participant type(s)Patient
Age groupAdult
SexBoth
Target number of participants48
Key inclusion criteria1. Written informed consent or agreement, or waiver of consent, is obtained before any study related activity
2. The participant is judged to be an adult (aged 16 years or over) and is affected by traumatic injury
3. The participant is deemed by the attending clinician to have ongoing active haemorrhage with shock
AND REQUIRES:
4. Activation of the local major haemorrhage protocol for management of severe blood loss and/or transfusion of emergency (Group O) red cells
Key exclusion criteria1. The participant has been transferred from another hospital
2. The trauma team leader deems the patient inappropriate for the trial i.e. injuries deemed to be incompatible with life
3. More than 3 hours have elapsed from the time of injury
4. The participant is pregnant
5. Severe isolated TBI or unsalvageable head injury
Date of first enrolment01/10/2015
Date of final enrolment31/03/2017

Locations

Countries of recruitment

  • England
  • Scotland
  • United Kingdom

Study participating centres

John Radcliffe Hospital (lead centre)
Oxford
OX3 9DU
United Kingdom
Royal London Hospital
London
E1 1BB
United Kingdom
Southampton General Hospital
Southampton
SO16 6YD
United Kingdom
Edinburgh Royal Infirmary
Edinburgh
EH16 4SA
United Kingdom

Sponsor information

NHS Blood and Transplant (NHSBT)
Hospital/treatment centre

NHSBT Clinical Trials Unit
Long Road
Cambridge
CB2 0QQ
England
United Kingdom

ROR logo "ROR" https://ror.org/0227qpa16

Funders

Funder type

Industry

CSL Behring
Private sector organisation / For-profit companies (industry)
Alternative name(s)
CSL Behring LLC, CSL Behring GmbH, CSL
Location
United States of America

Results and Publications

Intention to publish date18/06/2018
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryAvailable on request
Publication and dissemination planThe final study data set will be analysed and results published as soon as possible following completion of study follow up, final data checks and database lock. Individual Clinicians must not publish data concerning their patients that are directly relevant to questions posed by the trial until the Trial Management Group has published its report. The Trial Management Group will form the basis of the Writing Committee and will advise on the nature of publications.
IPD sharing plan

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Results article results 18/06/2018 Yes No
Basic results 24/08/2018 24/08/2018 No No
HRA research summary 28/06/2023 No No
Protocol article 26/05/2017 12/09/2023 Yes No

Additional files

ISRCTN67540073_BasicResults_24Aug18.pdf
Uploaded 24/08/2018

Editorial Notes

12/09/2023: Publication reference added.
24/08/2018: The following changes have been made:
1. The outcome measures were updated.
2. The intention to publish date was added.
3. The basic results of this trial have been uploaded as an additional file.
4. Publication reference added.