Pilot Randomized Trial of Fibrinogen in Trauma Haemorrhage
Information source: Rigshospitalet, Denmark
ClinicalTrials.gov processed this data on August 23, 2015 Link to the current ClinicalTrials.gov record.
Condition(s) targeted: Trauma; Haemorrhage
Intervention: Fibrinogen (Drug); Placebo (Drug)
Phase: Phase 2
Status: Recruiting
Sponsored by: Rigshospitalet, Denmark Official(s) and/or principal investigator(s): Jakob Stensballe, MD, PhD, Principal Investigator, Affiliation: Rigshospitalet, Denmark
Overall contact: Jakob Stensballe, MD, PhD, Phone: +4527538687, Email: jakob.stensballe@regionh.dk
Summary
Effect of immediate, pre-emptive fibrinogen concentrate in patients with trauma haemorrhage
needing haemostatic resuscitation - a randomized, controlled, double-blinded
investigator-initiated pilot trial
Clinical Details
Official title: Effect of Immediate, Pre-emptive Fibrinogen Concentrate in Patients With Trauma Haemorrhage Needing Haemostatic Resuscitation - a Randomized, Controlled, Double-blinded Investigator-initiated Pilot Trial
Study design: Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Treatment
Primary outcome: TEG® Functional Fibrinogen maximum amplitude 15 min
Secondary outcome: TEG® Functional Fibrinogen maximum amplitude 2 hoursTEG® Functional Fibrinogen maximum amplitude 6 hours TEG® Functional Fibrinogen maximum amplitude 24 hours TEG® Functional Fibrinogen maximum amplitude 72 hours TEG® maximum amplitude 15 min TEG® maximum amplitude 2 hours TEG® maximum amplitude 6 hours TEG® maximum amplitude 24 hours TEG® maximum amplitude 72 hours Transfusions requirements Total use of haemostatic therapy Time to intervention or placebo Time to FFP and PLT transfusion Percentage of patients receiving intervention or placebo < 1 hour of arrival Time to surgical control of bleeding Thromboembolism day 30 Anaphylaxis day 30 24-hour mortality 30-day mortality
Detailed description:
Objective To assess the efficacy and safety of an immediate pre-emptive first-line treatment
with fibrinogen concentrate in patients with trauma haemorrhage in need of haemostatic
resuscitation.
Hypothesis Immediate, pre-emptive first-line treatment of fibrinogen concentrate in trauma
patients with ongoing critical haemorrhage will increase the clot strength.
Background Trauma haemorrhage remains a leading cause of morbidity and mortality. Fibrinogen
is an essential endogenous component of haemostasis and the plasma level is associated to
bleeding, transfusion and outcome.
Trial rationale Fibrinogen concentrate is widely used to correct acquired
hypofibrinogenaemia, recommended by several international guidelines including in trauma,
but evidence is lacking regarding the treatment safety and efficacy.
Trial population The trial population are patients' ≥ 18 years admitted to the Trauma Centre
at Rigshospitalet with immediate need for blood transfusion at arrival and an expected need
for haemostatic resuscitation with multiple transfusions during the initial resuscitation.
Estimated 30-day mortality is 20 % in the population. Patients included in the trial will be
temporarily incompetent because of acute, severe illness related to the ongoing critical
bleeding needing multiple transfusion and immediate intervention to control bleeding.
Trial design This is a single centre, randomized (1: 1, active: placebo), placebo controlled,
double-blind investigator-initiated phase II trial in patients with traumatic, critical
bleeding, investigating the safety and efficacy of immediate and pre-emptive administration
of fibrinogen concentrate (Riastap®) or placebo as i. v infusion in 40 patients. All patients
will receive standard of care including damage control surgery, radiological interventions
and haemostatic resuscitation as part of their treatment at Rigshospitalet.
Patients considered to be included in the trial will be temporarily incompetent because of
the acute, critical bleeding related to trauma, so scientific guardians will co-sign the
informed consent form. Next-of-kin and the patients' general practitioner or the patients
will co-sign as soon as possible.
During the study blood samples will be taken at different time points. Patients will be
observed and assessed continuously throughout the first 72 hours. During the extended follow
up period at day 30, contact will be made with the patients to follow up on safety events
and establish potential mortality.
Investigational product Immediate intravenous administration as a single dose of fibrinogen
concentrate (Riastap®, CSL Behring), when haemostatic resuscitation is deemed necessary by
the clinician. The aim is to give the intervention < 1 hour of arrival, and the intervention
should, when possible, be given prior to blood products.
Placebo and blinding Saline 0. 9% will be used as placebo. The volume of placebo to be
administered is equal to the volume active drug administered. The content (Riastap® or
placebo) will be provided in opaque syringes and infusion sets (yellow-coloured) to disguise
the content of the allocation to the treatment team.
Outcome measures
Primary outcome measure:
• Thrombelastograph (TEG®) Functional Fibrinogen (FF) maximum amplitude (MA) in mm at 15 min
post intervention
Secondary outcome measures:
- TEG® FF MA in mm at 2, 6, 24 and 72 hours post intervention
- TEG® MA in mm at 15 min., 2, 6, 24 and 72 hours post intervention
- Transfusion requirements (Red blood cells (RBC) or fresh frozen plasma (FFP) or
platelets (PLT)) at 2, 6, 24, 72 hours and in total at day 30
- Total use of haemostatic therapy (i. e. use of coagulation factor concentrates and
tranexamic acid) in the first 24 and 72 hours, omitted from this is active treatment
(intervention)
- Time to intervention or placebo
- Time to FFP and PLT transfusion
- Percentage of patients receiving intervention or placebo < 1 hour of arrival
- Time to surgical control of bleeding as noted by the surgeon
- Severe adverse reactions at day 30, defined as symptomatic thromboembolism at day 30
and anaphylaxis at day 30
- 24-hour and 30-day mortality
Eligibility
Minimum age: 18 Years.
Maximum age: N/A.
Gender(s): Both.
Criteria:
Inclusion Criteria:
- Trauma patient received directly from the scene of the accident AND
- Age ≥ 18 years AND
- Initiated order of transfusion of at least one blood component within the 1st hour of
arrival AND
- Predicted to need transfusion package therapy during the initial resuscitation (first
2 hours) AND
- Consent obtainable from patient or scientific guardians (independent physicians
and/or next of kin
Exclusion Criteria:
- Duration of > 2 hours from time of accident to arrival at trauma centre OR
- Known anticoagulant treatment (vitamin K antagonist, dabigatran, rivaroxiban,
apixaban) OR
- Severe isolated traumatic brain injury OR
- Moribund patient with devastating injuries and expected to die within one hour of
admission OR
- Withdrawal from active therapy OR
- Previously, within 30 days, included in a randomized trial, if known at the time of
enrolment OR
- Known body weight < 55 kg OR
- Any blood product prior to inclusion
Locations and Contacts
Jakob Stensballe, MD, PhD, Phone: +4527538687, Email: jakob.stensballe@regionh.dk
Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark; Recruiting Jakob Stensballe, MD, PhD, Phone: +45 3545 8369, Email: jakob.stensballe@regionh.dk Jakob Stensballe, MD, Principal Investigator
Additional Information
Starting date: February 2015
Last updated: February 4, 2015
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