Study on Antithrombotic Prevention in Thrombophilia and Pregnancy Loss
OTTILIA
A Proposal of a Prospective Study on Prevention of Pregnancy Loss in Women Carrying Inherited Thrombophilia
1 other identifier
observational
108
1 country
1
Brief Summary
The occurrence of a spontaneous fetal loss (FL) is a rather frequent event: it has been estimated that up to 15% of pregnancies result in a fetal loss. However, recurrent events, defined as \>2 or \>3 loss, depending on the guidelines used (American College of Obstetricians and Gynecologists or Royal College of Obstetricians Gynaecologists guidelines), occur in 1 % of all pregnancies and it is noteworthy that Recurrent Fetal Loss ( RFL) in about 30-40% of cases remain unexplained after standard gynaecological, hormonal and karyotype investigations. Furthermore, it is important to consider that chromosomal abnormalities are responsible for at least 60% of FL in the first trimester, thus an abnormal karyotype in the fetus should be excluded prior to consider testing women for genetic susceptibility to placental vascular complications (inherited thrombophilia). Common inherited conditions, the factor V Leiden (FV) and the factor II G20210A (FII) mutations have been recognized as risk factors for FL. The efficacy of treatment with antithrombotic drugs during pregnancy in women with a history of RFL/ Intra Uterine Fetal Death (IUFD) and thrombophilia is still debated, due to scarcity of available data. Italian guidelines suggest the use of Low-Molecular-Weight Heparin (LMWH) in women with FV or FII mutations and previous otherwise unexplained obstetric complications, while guidelines released by RCOG suggest that heparin therapy during pregnancy may improve the live birth rate in women with second trimester loss associated with inherited thrombophilias. Hence, the idea to propose this prospective observational study comparing clinical data and outcomes in women with common inherited thrombophilias and in women without. During this study the investigators will collect and evaluate clinical data from examinations and visits by patients, eligible for the study as carriers of thrombophilic defects. This observation will begin before pregnancy and continue until the puerperium, allowing us to study all possible factors influencing these conditions. The study will add knowledge for improving feto-maternal prognosis and preventing spontaneous and recurrent FL. Plan of the study: multicenter observational study
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for all trials
Started Jan 2012
Longer than P75 for all trials
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
January 1, 2012
CompletedFirst Submitted
Initial submission to the registry
March 5, 2015
CompletedFirst Posted
Study publicly available on registry
March 11, 2015
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 1, 2020
CompletedStudy Completion
Last participant's last visit for all outcomes
December 1, 2020
CompletedJanuary 31, 2019
January 1, 2019
8.9 years
March 5, 2015
January 30, 2019
Conditions
Outcome Measures
Primary Outcomes (1)
Number of live births
10 months
Study Arms (3)
Inherited Thrombophilia
Women with Common Inherited Thrombophilias and previous foetal loss
Other Thrombophilias with Pregnancy loss
Women with Thrombophilias other than common inherited thrombophilias and previous foetal loss
No thrombophilia
Women without thrombophilias and previous foetal loss
Interventions
Eligibility Criteria
Consecutive pregnant women with previous pregnancy loss
You may qualify if:
- recurrent otherwise unexplained FL (defined as \>3, or 2 in the presence of at least 1 normal fetal karyotype) (according to Lussana et al.) or
- at least 1 intrauterine fetal death (IUFD), defined as a loss after 20 weeks of a morphologically normal fetus with/without HETEROZYGOUS FOR FACTOR V LEIDEN or HETEROZYGOUS FOR FIIA20210 (PTm)
You may not qualify if:
- personal history of venous and/or arterial thromboembolism;
- documented hemorrhagic disease;
- allergy to LMWH;
- uterine abnormalities;
- cervical incompetence;
- untreated endocrine diseases (diabetes mellitus or thyroid disease);
- indication to anticoagulant treatment during pregnancy;
- chromosomal abnormalities in parents
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
I.R.C.C.S. Casa Sollievo della Sofferenza
San Giovanni Rotondo, Foggia, 71013, Italy
Related Publications (2)
Grandone E, Tiscia GL, Mastroianno M, Larciprete G, Kovac M, Tamborini Permunian E, Lojacono A, Barcellona D, Bitsadze V, Khizroeva J, Makatsarya A, Cacciola R, Martinelli I, Bucherini E, De Stefano V, Lodigiani C, Colaizzo D, De Laurenzo A, Piazza G, Margaglione M. Findings from a multicentre, observational study on reproductive outcomes in women with unexplained recurrent pregnancy loss: the OTTILIA registry. Hum Reprod. 2021 Jul 19;36(8):2083-2090. doi: 10.1093/humrep/deab153.
PMID: 34195794DERIVEDVillani M, Baldini D, Totaro P, Larciprete G, Kovac M, Carone D, Passamonti SM, Permunian ET, Bartolotti T, Lojacono A, Cacciola R, Pinto GL, Bucherini E, De Stefano V, Lodigiani C, Lavopa C, Cho YS, Pizzicaroli C, Colaizzo D, Grandone E. Rationale and design of two prospective, multicenter, observational studies on reproductive outcome in women with recurrent failures after spontaneous or assisted conception: OTTILIA and FIRST registries. BMC Pregnancy Childbirth. 2019 Aug 13;19(1):292. doi: 10.1186/s12884-019-2444-y.
PMID: 31409287DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Elvira Grandone, MD
Thrombosis Unit, I.R.C.C.S. Casa Sollievo della Sofferenza, S. Giovanni Rotondo (Foggia)
Central Study Contacts
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Target Duration
- 10 Months
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- A proposal of a prospective study on prevention of pregnancy loss in women carrying inherited thrombophilia.
Study Record Dates
First Submitted
March 5, 2015
First Posted
March 11, 2015
Study Start
January 1, 2012
Primary Completion
December 1, 2020
Study Completion
December 1, 2020
Last Updated
January 31, 2019
Record last verified: 2019-01