Concordance Between the Measurement of Whole Blood Fibrinogen by the qLabs®FIB Analyzer and Its Measurement by Conventional Method (Clauss Fibrinogen) in the Context of Severe Postpartum Haemorrhage

Postpartum Hemorrhage Clinical Trial

— FIB-HPPS  

Official title:

Concordance Between the Measurement of Whole Blood Fibrinogen by the qLabs®FIB Analyzer and Its Measurement by Conventional Method (Clauss Fibrinogen) in the Context of Severe Postpartum Haemorrhage: a Prospective Multicenter Non-interventional Study

Clinical Trial Details — Status: Not yet recruiting

Administrative data

• NCT number: NCT06255002
• Other study ID #: APHP231640
• Status: Not yet recruiting
• Start date: March 2024
• Est. completion date: March 2025

Study information

• Verified date: February 2024
• Source: Assistance Publique - Hôpitaux de Paris
• Contact: Hawa KEITA-MEYER, MD-PhD
• Phone: 1 44 49 42 06
• Email: hawa.keita[@]aphp.fr
• Is FDA regulated: No
• Study type: Observational

Clinical Trial Summary

In France in 2021, 11.6% of deliveries were complicated by a postpartum haemorrhage (PPH), including 3.0% by severe PPH (the bleeding volume exceeds 1000 ml). Severe PPH is the 5th cause of maternal death (8.4% or 1.2 deaths per 100,000 live births). These deaths were considered preventable in 90% of cases. A plasma fibrinogen concentration below 2 g/L is considered as a critical threshold which constitutes a marker of severity of PPH and is significantly associated with the occurrence of severe PPH. Measuring the concentration of fibrinogen using a rapid test, simple to perform and interpret, available in the delivery room could optimize the management of severe PPH. The qLabs®FIB analyzer distributed by the Stago Biocare laboratory for the rapid determination of the fibrinogen concentration at the patient's bedside could meet this objective.

Description:

In France in 2021, 11.6% of deliveries were complicated by postpartum hemorrhage (PPH), including 3.0% by severe PPH (the bleeding volume exceeds 1000 ml). Severe PPH is the 5th cause of maternal death (8.4% or 1.2 deaths per 100,000 live births). These deaths were considered preventable in 90% of cases. A plasma fibrinogen concentration below 2 g/L is considered as a critical threshold which constitutes a marker of severity of PPH and is significantly associated with the occurrence of severe PPH. Measuring the concentration of fibrinogen using a rapid test, simple to perform and interpret, available in the delivery room could optimize the management of severe PPH. The qLabs®FIB analyzer distributed by Stago Biocare laboratory for the rapid determination of the fibrinogen concentration at the patient's bedside could meet this objective. The hypothesis of the study is a concordance between the measurement of fibrinogen by the qLabs®FIB Monitoring system and by the Clauss fibrinogen assay in laboratory to identify patients with a fibrinogen level < 2 g/L. The prospects are to provide an easy-to-use delocalized biology tool for early diagnosis of a fibrinogen concentration < 2g predictive of an unfavorable evolution in the context of severe PPH.

Recruitment information / eligibility

• Status: Not yet recruiting
• Enrollment: 40
• Est. completion date: March 2025
• Est. primary completion date: March 2025
• Gender: Female
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

Adult patients having been informed of the study and not having objected to their participation and treated for severe postpartum haemorrhage defined as bleeding greater than 1000 ml within 24 hours postpartum, whatever the route delivery (vaginal route and caesarean section).

Exclusion Criteria:

• Opposition to participation in the study
• Presence of a constitutional fibrinogen deficiency
• Patients under guardianship or curatorship

Related Conditions & MeSH terms

• Hemorrhage
• Postpartum Hemorrhage

Intervention

Biological:
• Fibrinogen concentration by the qLabs®FIB Monitoring system
A drop of blood (~15 µL) is taken from the blood sample for the complete haemostasis assessment (prothrombin level, activated partial thromboplastin time, fibrinogen). This assessment is part of the usual management of severe postpartum haemorrhage. It is carried out urgently in the hospital's medical biology laboratory at the start of treatment (T1) and during or at the end of treatment of the haemorrhage (T2). This drop of blood will allow the measurement of the fibrinogen concentration by the qLabs®FIB Monitoring system for the study at these two times.

Locations

Country	Name	City	State
France	Hôpital Cochin Maternité Port Royal	Paris
France	Hôpital Necker-Enfants Malades	Paris

Sponsors (1)

Lead Sponsor	Collaborator
Assistance Publique - Hôpitaux de Paris

Country where clinical trial is conducted

France, 

References & Publications (15)

Blondel B et al. Enquête nationale périnatale 2021

Charbit B, Mandelbrot L, Samain E, Baron G, Haddaoui B, Keita H, Sibony O, Mahieu-Caputo D, Hurtaud-Roux MF, Huisse MG, Denninger MH, de Prost D; PPH Study Group. The decrease of fibrinogen is an early predictor of the severity of postpartum hemorrhage. J Thromb Haemost. 2007 Feb;5(2):266-73. doi: 10.1111/j.1538-7836.2007.02297.x. Epub 2006 Nov 6. — View Citation

Collins PW, Cannings-John R, Bruynseels D, Mallaiah S, Dick J, Elton C, Weeks AD, Sanders J, Aawar N, Townson J, Hood K, Hall JE, Collis RE. Viscoelastometric-guided early fibrinogen concentrate replacement during postpartum haemorrhage: OBS2, a double-blind randomized controlled trial. Br J Anaesth. 2017 Sep 1;119(3):411-421. doi: 10.1093/bja/aex181. — View Citation

Cortet M, Deneux-Tharaux C, Dupont C, Colin C, Rudigoz RC, Bouvier-Colle MH, Huissoud C. Association between fibrinogen level and severity of postpartum haemorrhage: secondary analysis of a prospective trial. Br J Anaesth. 2012 Jun;108(6):984-9. doi: 10.1093/bja/aes096. Epub 2012 Apr 6. — View Citation

Deleu F, Deneux-Tharaux C, Chiesa-Dubruille C, Seco A, Bonnet MP; EPIMOMS study Group. Fibrinogen concentrate and maternal outcomes in severe postpartum hemorrhage: A population-based cohort study with a propensity score-matched analysis. J Clin Anesth. 2022 Oct;81:110874. doi: 10.1016/j.jclinane.2022.110874. Epub 2022 Jun 2. — View Citation

Deneux-Tharaux C, Bouvier-Colle MH. Severe acute maternal morbidity in France: the epimoms population-based study. Am J Obstet Gynecol. 1 janv 2017;216(1):S345-6

Ducloy-Bouthors AS, Mercier FJ, Grouin JM, Bayoumeu F, Corouge J, Le Gouez A, Rackelboom T, Broisin F, Vial F, Luzi A, Capronnier O, Huissoud C, Mignon A; FIDEL working group. Early and systematic administration of fibrinogen concentrate in postpartum haemorrhage following vaginal delivery: the FIDEL randomised controlled trial. BJOG. 2021 Oct;128(11):1814-1823. doi: 10.1111/1471-0528.16699. Epub 2021 Apr 7. — View Citation

Godeberge C, Deneux-Tharaux C, Seco A, Rossignol M, Chantry AA, Bonnet MP; EPIMOMS Study Group. Maternal Intensive Care Unit Admission as an Indicator of Severe Acute Maternal Morbidity: A Population-Based Study. Anesth Analg. 2022 Mar 1;134(3):581-591. doi: 10.1213/ANE.0000000000005578. — View Citation

Green L, Knight M, Seeney F, Hopkinson C, Collins PW, Collis RE, Simpson NA, Weeks A, Stanworth SJ. The haematological features and transfusion management of women who required massive transfusion for major obstetric haemorrhage in the UK: a population based study. Br J Haematol. 2016 Feb;172(4):616-24. doi: 10.1111/bjh.13864. Epub 2015 Dec 18. — View Citation

Huissoud C, Carrabin N, Audibert F, Levrat A, Massignon D, Berland M, Rudigoz RC. Bedside assessment of fibrinogen level in postpartum haemorrhage by thrombelastometry. BJOG. 2009 Jul;116(8):1097-102. doi: 10.1111/j.1471-0528.2009.02187.x. Epub 2009 May 12. — View Citation

Jokinen S, Kuitunen A, Uotila J, Yli-Hankala A. Thromboelastometry-guided treatment algorithm in postpartum haemorrhage: a randomised, controlled pilot trial. Br J Anaesth. 2023 Feb;130(2):165-174. doi: 10.1016/j.bja.2022.10.031. Epub 2022 Dec 7. — View Citation

Liew-Spilger AE, Sorg NR, Brenner TJ, Langford JH, Berquist M, Mark NM, Moore SH, Mark J, Baumgartner S, Abernathy MP. Viscoelastic Hemostatic Assays for Postpartum Hemorrhage. J Clin Med. 2021 Aug 31;10(17):3946. doi: 10.3390/jcm10173946. — View Citation

Sanfilippo S, Buisson L, Rouabehi H, Dujaric ME, Donnet T, de Raucourt E, Dumont B, Peynaud-Debayle E. The qLabs(R) FIB system, a novel point-of-care technology for a rapid and accurate quantification of functional fibrinogen concentration from a single drop of citrated whole blood. Thromb Res. 2023 Jun;226:159-164. doi: 10.1016/j.thromres.2023.03.018. Epub 2023 Apr 5. — View Citation

Saucedo M, Tessier V, Leroux S, Almeras A, Deneux-Tharaux C. Mortalité maternelle en France, mieux comprendre pour mieux prévenir. Sages-Femmes. sept 2021;20(5):36-42

Sentilhes L, Vayssiere C, Deneux-Tharaux C, Aya AG, Bayoumeu F, Bonnet MP, Djoudi R, Dolley P, Dreyfus M, Ducroux-Schouwey C, Dupont C, Francois A, Gallot D, Haumonte JB, Huissoud C, Kayem G, Keita H, Langer B, Mignon A, Morel O, Parant O, Pelage JP, Phan E, Rossignol M, Tessier V, Mercier FJ, Goffinet F. Postpartum hemorrhage: guidelines for clinical practice from the French College of Gynaecologists and Obstetricians (CNGOF): in collaboration with the French Society of Anesthesiology and Intensive Care (SFAR). Eur J Obstet Gynecol Reprod Biol. 2016 Mar;198:12-21. doi: 10.1016/j.ejogrb.2015.12.012. Epub 2015 Dec 21. — View Citation

* Note: There are 15 references in all — Click here to view all references

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Agreement between fibrinogen measurement by qLabs®FIB and by the Clauss method	Calculation of the average bias and the 95% limits of agreement between the measurement of qLabs®FIB fibrinogen in the delivery room and Clauss fibrinogen at the medical biology laboratory using the Bland and Altman graphic method. A difference of 0.1 g between the two techniques will be considered acceptable to identify patients with a fibrinogen level < 2 g/L.	Through study completion, an average of 1 year
Secondary	Evaluation of the ease of use of qLabs®FIB by the anesthesia team	Ease of use of the qLabs®FIB assessed by a numerical scale between 0-10 by the anesthesia team.	Through study completion, an average of 1 year
Secondary	Evaluation of the time taken to obtain the fibrinogen concentration using the 2 methods	Time to obtain the fibrinogen result with the qLabs®FIB and the Clauss method at the medical biology laboratory using the emergency circuit proposed by the laboratory.	Through study completion, an average of 1 year
Secondary	Evaluation of measurement failure by qLabs®FIB	Number of failed fibrinogen measurements with qLabs®FIB defined as the absence of results returned by the monitor.	Through study completion, an average of 1 year