{"title":"妊娠期预防性使用重组ADAMTS-13治疗先天性血栓性血小板减少性紫癜","authors":"Éloïse Colliou , Agnès Ribes , Clotilde Gaible , Mathilde Marlas , David Ribes , Isabelle Labadens , Paul Guerby , Stanislas Faguer","doi":"10.1016/j.rpth.2025.102687","DOIUrl":null,"url":null,"abstract":"<div><h3>Background</h3><div>Congenital thrombotic thrombocytopenic purpura (cTTP) related to ADAMTS-13 deficiency is associated with a maternal risk of death of 10% and a risk of fetal loss greater than 50% without treatment.</div></div><div><h3>Key Clinical Question</h3><div>Is prophylactic use of recombinant (r)ADAMTS-13 during pregnancy in patients with cTTP safe and effective in preventing cTTP relapse?</div></div><div><h3>Clinical Approach</h3><div>rADAMTS-13 was given intravenously weekly (40 Units/kg) from 17 weeks’ gestation. ADAMTS-13 activity was undetectable before the first administration, reached 60% to 90% of normal levels 2 hours after, and became undetectable between days 4 and 6. A full dose was given in the hours preceding the delivery and on day 3. No flare-up of cTTP occurred during the pregnancy, and rADAMTS-13 was tolerated well. No anti–ADAMTS-13 antibodies developed.</div></div><div><h3>Conclusion</h3><div>Prophylactic use of rADAMTS-13 during pregnancy may prevent relapse of cTTP and reduce the risk of fetal loss, but an optimal regimen requires further attention.</div></div>","PeriodicalId":20893,"journal":{"name":"Research and Practice in Thrombosis and Haemostasis","volume":"9 1","pages":"Article 102687"},"PeriodicalIF":3.4000,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Prophylactic use of recombinant ADAMTS-13 during pregnancy for congenital thrombotic thrombocytopenic purpura\",\"authors\":\"Éloïse Colliou , Agnès Ribes , Clotilde Gaible , Mathilde Marlas , David Ribes , Isabelle Labadens , Paul Guerby , Stanislas Faguer\",\"doi\":\"10.1016/j.rpth.2025.102687\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><h3>Background</h3><div>Congenital thrombotic thrombocytopenic purpura (cTTP) related to ADAMTS-13 deficiency is associated with a maternal risk of death of 10% and a risk of fetal loss greater than 50% without treatment.</div></div><div><h3>Key Clinical Question</h3><div>Is prophylactic use of recombinant (r)ADAMTS-13 during pregnancy in patients with cTTP safe and effective in preventing cTTP relapse?</div></div><div><h3>Clinical Approach</h3><div>rADAMTS-13 was given intravenously weekly (40 Units/kg) from 17 weeks’ gestation. ADAMTS-13 activity was undetectable before the first administration, reached 60% to 90% of normal levels 2 hours after, and became undetectable between days 4 and 6. A full dose was given in the hours preceding the delivery and on day 3. No flare-up of cTTP occurred during the pregnancy, and rADAMTS-13 was tolerated well. No anti–ADAMTS-13 antibodies developed.</div></div><div><h3>Conclusion</h3><div>Prophylactic use of rADAMTS-13 during pregnancy may prevent relapse of cTTP and reduce the risk of fetal loss, but an optimal regimen requires further attention.</div></div>\",\"PeriodicalId\":20893,\"journal\":{\"name\":\"Research and Practice in Thrombosis and Haemostasis\",\"volume\":\"9 1\",\"pages\":\"Article 102687\"},\"PeriodicalIF\":3.4000,\"publicationDate\":\"2025-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Research and Practice in Thrombosis and Haemostasis\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2475037925000111\",\"RegionNum\":3,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"HEMATOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Research and Practice in Thrombosis and Haemostasis","FirstCategoryId":"3","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2475037925000111","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"HEMATOLOGY","Score":null,"Total":0}
Prophylactic use of recombinant ADAMTS-13 during pregnancy for congenital thrombotic thrombocytopenic purpura
Background
Congenital thrombotic thrombocytopenic purpura (cTTP) related to ADAMTS-13 deficiency is associated with a maternal risk of death of 10% and a risk of fetal loss greater than 50% without treatment.
Key Clinical Question
Is prophylactic use of recombinant (r)ADAMTS-13 during pregnancy in patients with cTTP safe and effective in preventing cTTP relapse?
Clinical Approach
rADAMTS-13 was given intravenously weekly (40 Units/kg) from 17 weeks’ gestation. ADAMTS-13 activity was undetectable before the first administration, reached 60% to 90% of normal levels 2 hours after, and became undetectable between days 4 and 6. A full dose was given in the hours preceding the delivery and on day 3. No flare-up of cTTP occurred during the pregnancy, and rADAMTS-13 was tolerated well. No anti–ADAMTS-13 antibodies developed.
Conclusion
Prophylactic use of rADAMTS-13 during pregnancy may prevent relapse of cTTP and reduce the risk of fetal loss, but an optimal regimen requires further attention.