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RecruitingNCT06481995SWIFTUpdated Apr 27, 2026

SWIFT - SWIss Factor XIII Trial in PPH

A Phase 4 interventional study of Fibrogammin in Postpartum Hemorrhage, Coagulation Disorder and Coagulation Factor Deficiency, sponsored by Christian Haslinger. Recruiting at 9 sites in Switzerland. Open to female participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-04-27.

Sponsored by Christian Haslinger · Phase 4, Interventional, and Treatment

From the registry’s dates

  • Started Jul 2024; still recruiting 2 years 4 months later.
Phase
Phase 4
Study type
Interventional
Enrollment
988
Allocation
Randomized
Ages
18 Years and older
Sex
Female
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Study summary

The goal of this trial is to determine if postpartum blood loss can be reduced by replenishing coagulation factor XIII (FXIII) at an early stage of postpartum hemorrhage (PPH).

Summary of current body of evidence:

  • Morbidity and mortality due to PPH is rising.
  • Current guidelines focus on replenishment of fibrinogen as an initial step in the treatment of PPH-related coagulopathy, despite non-conclusive evidence in all prospective trials.
  • Trials from other specialties demonstrate a significant impact of FXIII on perioperative bleeding complications; a previous study at the University Hospital Zurich showed that pre-partum factor XIII activity had a strong association to postpartum blood loss.

Therefore, this nationwide, multi-center, randomized, controlled trial in multiple perinatal centers across Switzerland will be conducted. The goal is to determine if postpartum blood loss and PPH-related complications can be reduced by replenishing FXIII.

All participating women receive, according to the national guideline, 1g tranexamic acid (TXA) i.v. in case of PPH (measured blood loss [MBL] ≥ 500 mL) during the pre-study phase. Randomization takes place if bleeding continues and exceeds 700mL. The intervention group then receives FXIII (Fibrogammin®) according to approved dosage in addition to obstetric standard of care treatment for causes of PPH; the control group receives only standard of care treatment.

Read the detailed description

Postpartum hemorrhage (PPH) is a main reason for maternal mortality and morbidity. PPH, defined by the WHO as blood loss of 500 mL or more within 24 hours after delivery, causes about 30% of maternal deaths worldwide. The internationally observed trend towards increased PPH-related morbidity and mortality is disturbing and demands new strategies in the prevention and treatment of PPH.

Although the most frequent causes for severe PPH are believed to be uterine atony or retained placenta, virtually all cases of severe PPH lead to a disorder of the coagulation system which itself aggravates bleeding.

At the moment, most guidelines on coagulation management during PPH and expert opinions focus on the replenishment of coagulation factor I (fibrinogen) although three out of three randomized controlled trials with early or pre-emptive administration of fibrinogen during PPH were negative.

Based on earlier research, it was hypothesized that coagulation factor XIII (FXIII) might play a significant role in women with increased postpartum blood loss, because of its role in the establishment of blood clot stability and fibrinolytic resistance. This hypothesis was tested in a prospective diagnostic study involving 1300 parturient women at the University Hospital Zurich and showed that pre-partum factor XIII activity had a strong association to postpartum blood loss.

Therefore, this nationwide, multi-center, open-label, randomized controlled trial in major perinatal centers across Switzerland will be conducted. The goal is to determine if postpartum blood loss and PPH-related complications can be reduced by substitution of FXIII at an early stage of PPH.

Irrespective of the answer to the question whether FXIII is effective in the treatment of PPH, this trial will contribute to enhancing the comprehension of coagulopathy in the context of PPH

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Conditions studied

  • Postpartum Hemorrhage
  • Coagulation Disorder
  • Coagulation Factor Deficiency
  • Hemorrhage
  • Postpartum Complication

Keywords

  • Postpartum hemorrhage
  • coagulation factor XIII
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In context

Postpartum Hemorrhage

469 studies on the registry are indexed under Postpartum Hemorrhage; 76 are open to participants now.

This study's planned enrollment of 988 is above the median of 148 across 360 interventional studies indexed under Postpartum Hemorrhage.

Browse Postpartum Hemorrhage studies →

Lead sponsor

Christian Haslinger is the lead sponsor of 3 studies on the registry; 1 is open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
Female
Accepts healthy volunteers
No

Eligibility criteria

Inclusion Criteria:

  • planned vaginal delivery
  • singleton vital pregnancy
  • gestational age at delivery >= 30+0 weeks
  • maternal weight at admission for delivery \<100 kg

Exclusion Criteria:

  • Antithrombotic therapy in pregnancy (therapeutic dosage) until admission for delivery (LMWH, UFH)
  • diagnosis of preeclampsia (ISSHP classification , eclampsia or HELLP syndrome),
  • known history of deep vein thrombosis or pulmonary embolism,
  • known diagnosis of bleeding disorder or thrombophilia,
  • known thrombocytopenia during second half of pregnancy with \< 100 G/L,
  • known anemia during second half of pregnancy with \<80 g/L,
  • known sickle cell disease,
  • known malignant tumor(s),
  • participation in another study with drug within the 30 days preceding and during the present study,
  • inability to follow the procedures of the study, e.g. due to language problems,
  • known or suspected non-compliance, drug or alcohol abuse.

Exclusion criteria prior randomization

  • Maternal fever ≥39.0°C
  • unplanned cesarean delivery is performed,
  • Measured Blood Loss remains \< 700 mL after administration of 1g tranexamic acid .
  • Postpartum hemorrhage due to occult bleeding (intra-abdominal, retroperitoneal, parametric),
Terms in these criteria, in plain language(3)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

Hemoglobin (Hb)

The protein in red blood cells that carries oxygen. A low level is anaemia, which can cause tiredness and breathlessness. Measured in g/dL or g/L (9 g/dL is 90 g/L).

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

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Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Outcomes assessor)
Enrollment
988 participants (estimated)

Study arms

  • Experimental
    Fibrogammin (FXIII)

    Women in the intervention group receive FXIII intravenously in addition to the standard of care treatment for PPH. FXIII is administered when blood loss is \> 700 ml. Women weighing \<80 kg receive 1250 IU Fibrogammin®; women weighing 80-99.9 kg receive 1500 IU Fibrogammin®; thus ensuring a dose of 15-20 IU FXIII per kg body weight according to the manufacturer's recommendation.

    Drug: Fibrogammin

  • No intervention
    Control

    Women in the control group will be treat according to the standard of care procedure for PPH.

Interventions

  • Fibrogammin is administered according to the Summary of product characteristics (SmPC) after measured blood loss exceeds 700 ml and bleeding is ongoing

    Also known as: Factor XIII

06

What researchers measure

Primary outcomes

  1. Blood Loss during post partum hemorrhage

    Measured blood loss, in ml

    Time frame: Day 1 (within 24 hours after delivery)

Secondary outcomes

  1. Outcome of postpartum hemorrhage

    Composite of adverse maternal outcomes related to postpartum hemorrhage, including postpartum hemorrhage with measure blood loss ≥2000 mL (within 24 hours), admission to intensive care unit, blood transfusion, need for embolization of the pelvic arteries, laparotomy with surgical measures (such as compression sutures, or ligatures), or hysterectomy during hospitalization.

    Time frame: Time point of assessment will be 48 hours (range 36 to 60) postpartum, if not stated otherwise

  2. Changes in hematological standard value: hemoglobin

    Comparison of hemoglobin values, pre-partum and post-partum (in g/L)

    Time frame: shortly before delivery and 48 hours (range 36 to 60 hours) after delivery

  3. Changes in hematological standard value: leucocyte count

    Comparison of leucocyte count, pre-partum and post-partum (in G/l)

    Time frame: shortly before delivery and 48 hours (range 36 to 60 hours) after delivery

  4. Changes in hematological standard value; thrombocyte count

    Comparison of thrombocyte count, pre-partum and post-partum (in G/l)

    Time frame: shortly before delivery and 48 hours (range 36 to 60 hours) after delivery

  5. Hospital costs

    Total costs (in CHF)

    Time frame: from admission to hospital until hospital discharge, up to 9 weeks

  6. Breastfeeding

    Number of women who exclusively breastfeed their babies after PPH

    Time frame: 6 - 9 weeks after delivery

  7. Patient survey (in a subgroup of patients only)

    Questionnaire for personal experience during PPH

    Time frame: discharge from hospital, estimated 3 - 5 days after delivery

Other outcomes

  1. Thromboembolic events

    Number of thromboembolic events (safety outcome)

    Time frame: 6 - 9 weeks after delivery (visit 4)

07

Study locations

8 of 9 sites recruiting
08

References and documents

Publications

  • Say L, Chou D, Gemmill A, Tuncalp O, Moller AB, Daniels J, Gulmezoglu AM, Temmerman M, Alkema L. Global causes of maternal death: a WHO systematic analysis. Lancet Glob Health. 2014 Jun;2(6):e323-33. doi: 10.1016/S2214-109X(14)70227-X. Epub 2014 May 5. PubMed 25103301 ↗
  • GBD 2015 Maternal Mortality Collaborators. Global, regional, and national levels of maternal mortality, 1990-2015: a systematic analysis for the Global Burden of Disease Study 2015. Lancet. 2016 Oct 8;388(10053):1775-1812. doi: 10.1016/S0140-6736(16)31470-2. PubMed 27733286 ↗
  • Weeks A. The prevention and treatment of postpartum haemorrhage: what do we know, and where do we go to next? BJOG. 2015 Jan;122(2):202-10. doi: 10.1111/1471-0528.13098. Epub 2014 Oct 7. PubMed 25289730 ↗
  • WHO Recommendations for the Prevention and Treatment of Postpartum Haemorrhage. Geneva: World Health Organization; 2012. Available from http://www.ncbi.nlm.nih.gov/books/NBK131942/ PubMed 23586122 ↗
  • Korte WC, Szadkowski C, Gahler A, Gabi K, Kownacki E, Eder M, Degiacomi P, Zoller N, Devay J, Lange J, Schnider T. Factor XIII substitution in surgical cancer patients at high risk for intraoperative bleeding. Anesthesiology. 2009 Feb;110(2):239-45. doi: 10.1097/ALN.0b013e318194b21e. PubMed 19194150 ↗
  • Wettstein P, Haeberli A, Stutz M, Rohner M, Corbetta C, Gabi K, Schnider T, Korte W. Decreased factor XIII availability for thrombin and early loss of clot firmness in patients with unexplained intraoperative bleeding. Anesth Analg. 2004 Nov;99(5):1564-1569. doi: 10.1213/01.ANE.0000134800.46276.21. PubMed 15502066 ↗
  • Haslinger C, Korte W, Hothorn T, Brun R, Greenberg C, Zimmermann R. The impact of prepartum factor XIII activity on postpartum blood loss. J Thromb Haemost. 2020 Jun;18(6):1310-1319. doi: 10.1111/jth.14795. Epub 2020 Apr 16. PubMed 32176833 ↗
  • Jacobs JW, Abels EA, Adkins BD, Booth GS, Costa V, Raza S, Simon M, Woo JS, Wheeler AP. Factor XIII Supplementation in Postpartum Hemorrhage: From Biological Rationale to Clinical Implementation. Am J Hematol. 2026 Apr;101(4):794-806. doi: 10.1002/ajh.70181. Epub 2025 Dec 31. PubMed 41472522 ↗
  • Haslinger C, Hothorn T, Bossung V, Kalimeris S, Ranieri E, Ochsenbein-Koelble N, Korte W. Effects of early factor XIII replacement in postpartum hae morrhage: study protocol for a multicentre, open-label, randomised, controlled, investigator-initiated trial. BMJ Open. 2025 May 8;15(5):e100262. doi: 10.1136/bmjopen-2025-100262. PubMed 40345697 ↗

Individual participant data

Plan to share: Yes — The data sharing plan aims to ensure computational reproducibility of all published research findings obtained from data collected in this trial. Each publication will be accompanied by a dedicated compendium containing deidentified individual patient data necessary to independently reproduce the analyses presented in the corresponding publication. Such a compendium also contains information about the computer code that was used to generate figures, tables, and other statistical output. Distribution will be via a data repository following FAIR principles (such as zenodo.org).

Supporting information: Study protocol, Informed consent form, Analytic code

Time frame: At the time of publication

Access criteria: Access will be provided without limitations. Data will be provided to allow independent computational reproducibility of already published results.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Jul 2024 (actual). Primary completion is estimated for Jun 2028, 47 months after the start.

Of 27 non-industry phase 4 interventional studies under Postpartum Hemorrhage, half reached primary completion within 12 months of starting (the median), counting those still running; a quarter within 10 and three quarters within 20. This study's planned 47 months is above that.

Counting every sponsor, half of 28 studies reached it within 12 months; a quarter within 10 and three quarters within 20.

How these figures are worked out, and which studies are left out of them.

Registered
May 31, 2024
First posted
Jul 1, 2024
StartActual
Jul 9, 2024
Primary completionEst.
Jun 30, 2028
CompletionEst.
Dec 31, 2028
Last update
Apr 27, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Apr 27, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT06481995
Lead sponsor
Christian Haslinger
Collaborators
Swiss National Science Foundation
Responsible party
Christian Haslinger (Prof. Dr. med. Christian Haslinger, University of Zurich) — Sponsor-investigator
First posted
Jul 1, 2024
Start date
Jul 9, 2024
Primary completion
Jun 30, 2028 (estimated)
Completion
Dec 31, 2028 (estimated)
Last update
Apr 27, 2026

Study contacts

Christian Haslinger, Prof. Dr
Contact
Christian.haslinger@usz.ch
0041 432537575
Annick Toggenburger, PhD
Contact
annick.toggenburger-schroeder@usz.ch
Christian Haslinger, Prof. Dr.
study chair · University of Zurich
Sara de Oliveira, MD
principal investigator · University Hospital, Geneva
Hélène Legardeur, MD
principal investigator · University of Lausanne Hospitals
Beatrice Mosimann, Prof. Dr.
principal investigator · University Hospital, Basel, Switzerland
Tina Fischer, MD
principal investigator · HOCH Health Ostschweiz
Leonhard Schäffer, Prof. Dr.
principal investigator · Kantonsspital Baden
Michael Winter, MD
principal investigator · Spital Zollikerberg
Jarmila Zdanowicz, MD
principal investigator · Inselspital-University Hospital Bern
Leila Sultan-Beyer, MD
principal investigator · Cantonal Hospital Winterthur

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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