{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,12]],"date-time":"2026-06-12T15:10:27Z","timestamp":1781277027122,"version":"3.54.1"},"reference-count":31,"publisher":"BMJ","issue":"5","license":[{"start":{"date-parts":[[2025,5,9]],"date-time":"2025-05-09T00:00:00Z","timestamp":1746748800000},"content-version":"unspecified","delay-in-days":8,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001711","name":"Swiss National Science Foundation","doi-asserted-by":"crossref","award":["33IC30_213591"],"award-info":[{"award-number":["33IC30_213591"]}],"id":[{"id":"10.13039\/501100001711","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Open"],"accepted":{"date-parts":[[2025,4,11]]},"published-print":{"date-parts":[[2025,5]]},"abstract":"<jats:sec>\n                    <jats:title>Introduction<\/jats:title>\n                    <jats:p>The primary objective of this trial is to evaluate the effect of replenishing coagulation factor XIII (FXIII) in women with postpartum haemorrhage (PPH) on measured blood loss (MBL). Based on earlier research, we hypothesise that the administration of FXIII leads to a significant reduction in postpartum blood loss.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods and analysis<\/jats:title>\n                    <jats:p>This is a randomised, controlled trial that will allocate eligible patients in the event of a PPH and after receiving tranexamic acid either to the treatment group, receiving FXIII, or to the control group (standard of care). The primary endpoint is the MBL within 24 hours using a standardised method. For the primary analysis, estimation of the OR under a proportional odds assumption is conducted simultaneously for all possible cut-off points. A corresponding estimate, along with a two-sided 95% CI and two-sided p value against the null hypothesis OR=1, is obtained from the Continuous Outcome Logistic Regression model. More than 7000 patients will be screened in order to include a total of 988 eligible patients into the trial. Secondary outcomes include the rate of adverse maternal outcomes related to PPH, the rate of women breastfeeding after PPH and the safety of the administration of FXIII in women with PPH. Dynamics of blood coagulation factors in women with PPH and their association with MBL will be assessed in specific centres. A preliminary overview on costs and potential savings through early treatment of PPH with FXIII is included in the analysis as well as a patient and public involvement report, asking for patients\u2019 personal experience during PPH in the main study centre.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Ethics and dissemination<\/jats:title>\n                    <jats:p>Ethics approval was granted by the central ethics committee (Kantonale Ethikkommission Z\u00fcrich\/Switzerland) on 16 June 2024, reference number: BASEC 2024-00374. Results will be disseminated via open-access publication in a relevant medical journal.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Trial registration number<\/jats:title>\n                    <jats:p>\n                      ClinicalTrials.gov ID\n                      <jats:ext-link xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" ext-link-type=\"clintrialgov\" xlink:href=\"NCT06481995\">NCT06481995<\/jats:ext-link>\n                      .\n                    <\/jats:p>\n                  <\/jats:sec>","DOI":"10.1136\/bmjopen-2025-100262","type":"journal-article","created":{"date-parts":[[2025,5,9]],"date-time":"2025-05-09T01:35:33Z","timestamp":1746754533000},"page":"e100262","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":5,"title":["Effects of early factor XIII replacement in postpartum hae morrhage: study protocol for a multicentre, open-label, randomised, controlled, investigator-initiated trial"],"prefix":"10.1136","volume":"15","clinical-trial-number":[{"clinical-trial-number":"nct06481995","registry":"10.18810\/clinical-trials-gov"}],"author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3344-9480","authenticated-orcid":false,"given":"Christian","family":"Haslinger","sequence":"first","affiliation":[{"name":"Department of Obstetrics, University Hospital Zurich, Z\u00fcrich, ZH, Switzerland"},{"name":"University of Zurich, Faculty of Medicine, Z\u00fcrich, ZH, Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8301-0471","authenticated-orcid":false,"given":"Torsten","family":"Hothorn","sequence":"additional","affiliation":[{"name":"Institut f\u00fcr Epidemiologie, Biostatistik und Pr\u00e4vention, Universit\u00e4t Z\u00fcrich, Z\u00fcrich, Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Verena","family":"Bossung","sequence":"additional","affiliation":[{"name":"Department of Obstetrics, University Hospital Zurich, Z\u00fcrich, ZH, Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stylianos","family":"Kalimeris","sequence":"additional","affiliation":[{"name":"Department of Obstetrics, University Hospital Zurich, Z\u00fcrich, ZH, Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Elisabetta","family":"Ranieri","sequence":"additional","affiliation":[{"name":"Department of Obstetrics, University Hospital Zurich, Z\u00fcrich, ZH, Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nicole","family":"Ochsenbein-Koelble","sequence":"additional","affiliation":[{"name":"Department of Obstetrics, University Hospital Zurich, Z\u00fcrich, ZH, Switzerland"},{"name":"University of Zurich, Faculty of Medicine, Z\u00fcrich, ZH, Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wolfgang","family":"Korte","sequence":"additional","affiliation":[{"name":"Zentrum F\u00fcr Labormedizin (ZLM), St. Gallen, Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"239","published-online":{"date-parts":[[2025,5,8]]},"reference":[{"key":"2025121602043039000_15.5.e100262.1","doi-asserted-by":"crossref","first-page":"e323","DOI":"10.1016\/S2214-109X(14)70227-X","article-title":"Global causes of maternal death: a WHO systematic analysis","volume":"2","author":"Say","year":"2014","journal-title":"Lancet Glob Health"},{"key":"2025121602043039000_15.5.e100262.2","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(16)31470-2"},{"key":"2025121602043039000_15.5.e100262.3","doi-asserted-by":"crossref","first-page":"202","DOI":"10.1111\/1471-0528.13098","article-title":"The prevention and treatment of postpartum haemorrhage: what do we know, and where do we go to next?","volume":"122","author":"Weeks","year":"2015","journal-title":"BJOG"},{"key":"2025121602043039000_15.5.e100262.4","unstructured":"WHO recommendations for the prevention and treatment of postpartum haemorrhage. 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