Clinical Trial Results:
Bicentric clinical trial with in vitro experiments to assess the effect of Fibrinogen (FGTW) on Coagulation in Thrombocytopenia
Summary
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EudraCT number |
2012-004087-22 |
Trial protocol |
AT |
Global end of trial date |
28 Aug 2014
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Results information
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Results version number |
v1(current) |
This version publication date |
18 Nov 2016
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First version publication date |
18 Nov 2016
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Other versions |
Trial Information
Subject Disposition
Baseline Characteristics
End Points
Adverse Events
More Information
Subject Disposition
Baseline Characteristics
End Points
Adverse Events
More Information
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Trial identification
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Sponsor protocol code |
FiT2012
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Additional study identifiers
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ISRCTN number |
- | ||
US NCT number |
NCT01955811 | ||
WHO universal trial number (UTN) |
- | ||
Sponsors
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Sponsor organisation name |
Medical University of Innsbruck
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Sponsor organisation address |
Anichstr. 35, Innsbruck, Austria, 6020
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Public contact |
Projektmanagement, Medizinische Universität Innsbruck / Univ.-Klinik für Allgem. und Chirurgische Intensivmedizin, +43 51250480604, bettina.schenk@i-med.ac.at
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Scientific contact |
Projektmanagement, Medizinische Universität Innsbruck / Univ.-Klinik für Allgem. und Chirurgische Intensivmedizin, +43 51250480604, bettina.schenk@i-med.ac.at
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Paediatric regulatory details
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Is trial part of an agreed paediatric investigation plan (PIP) |
No
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Does article 45 of REGULATION (EC) No 1901/2006 apply to this trial? |
No
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Does article 46 of REGULATION (EC) No 1901/2006 apply to this trial? |
No
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Results analysis stage
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Analysis stage |
Final
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Date of interim/final analysis |
28 Aug 2014
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Is this the analysis of the primary completion data? |
Yes
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Primary completion date |
28 Aug 2014
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Global end of trial reached? |
Yes
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Global end of trial date |
28 Aug 2014
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Was the trial ended prematurely? |
No
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General information about the trial
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Main objective of the trial |
The primary objective is to assess the difference in maximum clot firmness (MCF) in ROTEM ExTEM® between blood samples after in vitro spiking and compared to those blood samples obtained from the same patients after platelet-transfusion.
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Protection of trial subjects |
Blood was drawn from an already implemented line.
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Background therapy |
- | ||
Evidence for comparator |
- | ||
Actual start date of recruitment |
02 Jan 2013
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Long term follow-up planned |
No
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Independent data monitoring committee (IDMC) involvement? |
No
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Population of trial subjects
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Number of subjects enrolled per country |
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Country: Number of subjects enrolled |
Austria: 96
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Worldwide total number of subjects |
96
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EEA total number of subjects |
96
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Number of subjects enrolled per age group |
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In utero |
0
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Preterm newborn - gestational age < 37 wk |
0
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Newborns (0-27 days) |
0
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Infants and toddlers (28 days-23 months) |
0
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Children (2-11 years) |
0
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Adolescents (12-17 years) |
0
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Adults (18-64 years) |
34
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From 65 to 84 years |
59
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85 years and over |
3
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Recruitment
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Recruitment details |
- | |||||||||
Pre-assignment
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Screening details |
Patient with the clinical need for platelet transfusion Age 18-85 years | |||||||||
Period 1
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Period 1 title |
Baseline V2 (1 hour after PT)
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Is this the baseline period? |
Yes | |||||||||
Allocation method |
Not applicable
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Blinding used |
Not blinded | |||||||||
Arms
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Are arms mutually exclusive |
No
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Arm title
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Platelet transfusion | |||||||||
Arm description |
- | |||||||||
Arm type |
Experimental | |||||||||
Investigational medicinal product name |
platelet concentrate
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Investigational medicinal product code |
PT
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Other name |
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Pharmaceutical forms |
Infusion
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Routes of administration |
Intravenous use
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Dosage and administration details |
1-2 units (250 - 500 ml)
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Arm title
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Fibrinogen | |||||||||
Arm description |
- | |||||||||
Arm type |
Experimental | |||||||||
Investigational medicinal product name |
Fibrinogen Concentrate
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Investigational medicinal product code |
F1
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Other name |
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Pharmaceutical forms |
Concentrate and solvent for solution for injection, Concentrate and solvent for solution for infusion
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Routes of administration |
In vitro use
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Dosage and administration details |
50,100,200 and 400 mg/kg body weight
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Period 2
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Period 2 title |
Baseline (before PT)
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Is this the baseline period? |
No | |||||||||
Allocation method |
Not applicable
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Blinding used |
Not blinded | |||||||||
Arms
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Are arms mutually exclusive |
Yes
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Arm title
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Fibrinogen | |||||||||
Arm description |
- | |||||||||
Arm type |
Experimental | |||||||||
Investigational medicinal product name |
Fibrinogen Concentrate
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Investigational medicinal product code |
F1
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Other name |
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Pharmaceutical forms |
Concentrate and solvent for solution for injection, Concentrate and solvent for solution for infusion
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Routes of administration |
In vitro use
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Dosage and administration details |
50,100,200 and 400 mg/kg body weight
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Arm title
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Platelet transfusion | |||||||||
Arm description |
platelet transfusion | |||||||||
Arm type |
Active comparator | |||||||||
Investigational medicinal product name |
platelet concentrate
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Investigational medicinal product code |
PT
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Other name |
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Pharmaceutical forms |
Infusion
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Routes of administration |
Intravenous use
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Dosage and administration details |
1-2 units (250 - 500 ml)
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Baseline characteristics reporting groups
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Reporting group title |
Baseline V2 (1 hour after PT)
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Reporting group description |
- | |||||||||||||||||||||||||||||||||||||||||||||||||||
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End points reporting groups
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Reporting group title |
Platelet transfusion
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Reporting group description |
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Reporting group title |
Fibrinogen
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Reporting group description |
- | ||
Reporting group title |
Fibrinogen
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Reporting group description |
- | ||
Reporting group title |
Platelet transfusion
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Reporting group description |
platelet transfusion |
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End point title |
EXTEM MCF | ||||||||||||||||||||
End point description |
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End point type |
Primary
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End point timeframe |
Blood samples from V2 (1 hour after platelet transfusion) are compared to blood samples from V1 (before platelet transfusion) spiked with various amounts of human fibrinogen concentrate.
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Statistical analysis title |
Wilcoxon signed rank test | ||||||||||||||||||||
Comparison groups |
Fibrinogen v Platelet transfusion
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Number of subjects included in analysis |
192
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Analysis specification |
Post-hoc
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Analysis type |
equivalence | ||||||||||||||||||||
P-value |
< 0.05 | ||||||||||||||||||||
Method |
Wilcoxon (Mann-Whitney) | ||||||||||||||||||||
Parameter type |
Median difference (final values) | ||||||||||||||||||||
Point estimate |
0.06
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Confidence interval |
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level |
95% | ||||||||||||||||||||
sides |
2-sided
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lower limit |
0.05 | ||||||||||||||||||||
upper limit |
0.95 | ||||||||||||||||||||
Variability estimate |
Standard deviation
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Adverse events information
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Timeframe for reporting adverse events |
JAN/2013-AUG/2014
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Assessment type |
Systematic | ||||||||||||||||
Dictionary used for adverse event reporting
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Dictionary name |
MedDRA | ||||||||||||||||
Dictionary version |
10
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Reporting groups
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Reporting group title |
Patient Population
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Reporting group description |
- | ||||||||||||||||
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Frequency threshold for reporting non-serious adverse events: 0% | |||||||||||||||||
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Substantial protocol amendments (globally) |
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Were there any global substantial amendments to the protocol? Yes | |||
Date |
Amendment |
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22 Mar 2013 |
addition of confocal microscopy, adaption of fibrinogen values |
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14 Jun 2013 |
adaption of time period and fibrinogen concentration |
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Interruptions (globally) |
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Were there any global interruptions to the trial? No | |||
Limitations and caveats |
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Limitations of the trial such as small numbers of subjects analysed or technical problems leading to unreliable data. | |||
A limitation of the study is that fibrinogen addition was performed ex vivo and that a significant proportion of patients (24%) received fibrinogen concentrate in addition to PT which potentially influences results from V2 Baseline (1 h after PT) |