- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03336463
Prediction of Recurrent Pregnancy Loss by a New Thrombophilia Based Genetic Risk Score (TiC-RPL)
Recurrent pregnancy loss (RPL) is a clinical problem affecting 1-5% of couples of reproductive age. The contribution of thrombophilia to RPL is disputed. This controversy is partly due to low sensitivity of the genetic variants currently used to evaluate hereditary thrombophilia: the Leiden mutation (identified as rs6025) in the coagulation factor 5 (F5L) gene and mutation G20210A (identified as rs1799963) in the prothrombin (PT) gene.
Our objective was to determine whether a wider algorithm that includes clinic and genetic variants associated with thrombophilia could be more useful in the prediction for RPL than FVL and PT alone.
Study Overview
Status
Conditions
Detailed Description
Recurrent pregnancy loss can affect up to 5% of women in child-bearing age and is considered one of the most common causes of female sterility. In recent years, the association between thrombophilia and pregnancy failure has been observed in a number of studies, varying according to the nature of the thrombophilia (for example the antiphospholipid syndrome as opposed to the hereditary forms) or the type of pregnancy loss (either isolated or recurrent, or early or late). It has therefore been accepted that thrombophilia is detected in a significant number of idiopathic pregnancy losses, reaching 66% of the cases in some series.
Since the 1990's, a number of studies have associated recurrent pregnancy loss with FVL mutations (most frequently) and G20210 PT. In a systematic review, it was confirmed that women with thrombophilia have a higher risk of developing thromboembolism and complications in pregnancy. Another recent meta-analysis of prospective cohort studies concluded that women who were carriers of FVL had a higher risk of late pregnancy loss, at 52%, as opposed to non-carriers (OR=1.52), though the differences in absolute risk were discreet (4.2% and 3.2%, respectively). However, the analysis of these 2 single nucleotide polymorphisms (SNPs) showed low discriminative capacity and diagnostic sensitivity.
This study hypothesize that the use of the Thrombo inCode® in the screening for hereditary thrombophilia in patients with recurrent pregnancy loss can improve the diagnostic sensitivity and predictive capacity of the routine genetic panel, based on FVL and G20210A PT. Thus, the Thrombo inCode® model can accurately identify more patients with clinical-genetic risk of thromboembolism and therefore establish the appropriate preventive measures.
A transversal observational case-control study will be carried out, with retrospective data analysis. The screening for hereditary thrombophilia will be performed through the Thrombo inCode® panel in cases and controls. The results produced from a single genetic analysis will allow comparison to the centres' routine protocol (FV Leiden and G20210A PT) with the complete Thrombo inCode® panel, that also includes the previously-mentioned classical variants.
Study Type
Enrollment (Actual)
Contacts and Locations
Study Locations
-
-
-
Barcelona, Spain, 08025
- Institut d'Investigació Sant Pau
-
Madrid, Spain, 28040
- Hospital Universitario Fundacion Jimenez Diaz
-
Madrid, Spain, 28029
- Instituto Salud Carlos III
-
Valencia, Spain, 46015
- IVI-RMA Valencia
-
Valencia, Spain, 46026
- Instituto de Investigaciones Sanitarias La Fe
-
-
Navarra
-
Pamplona, Navarra, Spain, 31008
- Clinica Universitaria de Navarra
-
-
Select State
-
Esplugues de Llobregat, Select State, Spain, 08950
- Gendiag.exe, S.L.
-
-
-
-
-
London, United Kingdom, W1G9RQ
- IVI-RMA-London
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Sampling Method
Study Population
Description
CONTROLS
Inclusion Criteria:
- Women >18 and < 38 years old at the time of the first pregnancy.
- Women with successful implantation and at least one full-term pregnancy
- No chronic pathology
Exclusion Criteria:
- Personal or family history of thrombosis
- Personal history of obstetric complications Miscarriage or foetal death Pre-eclampsia or eclampsia Intrauterine growth restriction Placental abruption
- Concomitant anticoagulant treatment and/or antiplatelet treatments during pregnancy
CASES
Inclusion Criteria:
- Repeated clinical miscarriages and/or foetal death (≥ 2 consecutive or ≥ 3 non- consecutive) before the 20th weeks of pregnancy, from spontaneous or assisted pregnancies.
- Recurrent miscarriage with the same gametic origin.
Idiopathic origin:
Women < 38 years old Non-severe seminal factor (sperm concentration > 2 mill/ml) Normal karyotypes in both spouses (or in the male and the donor in the case of ovocyte donation) Antiphospholipid syndrome negative Normal or corrected thyroid function BMI < 30
Exclusion Criteria:
- Diabetes
- Chronic pathologies
- Hydrosalpinx
- Concomitant anticoagulant or antiplatelet treatment
Study Plan
How is the study designed?
Design Details
- Observational Models: Case-Control
- Time Perspectives: Retrospective
Cohorts and Interventions
Group / Cohort |
---|
Controls
No intervention
|
Cases
No intervention
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Recurrent Pregnancy Loss
Time Frame: 20 weeks
|
Repeated clinical pregnancy loss and/or foetal death (≥ 2 consecutive or ≥ 3 non-consecutive) before the 20th weeks of pregnancy
|
20 weeks
|
Pregnancy at term
Time Frame: 20 weeks
|
Pregnancy with life-birth
|
20 weeks
|
Collaborators and Investigators
Sponsor
Collaborators
Investigators
- Study Director: Eduardo S Salas, MD, PhD, Ferrer inCode, S.L.
Publications and helpful links
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- FerrerinCode
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
Clinical Trials on Miscarriage, Recurrent
-
Fudan UniversityUnknown
-
Nanjing UniversityCompletedUnexplained Recurrent Miscarriage and Recurrent Implantation FailureChina
-
Rigshospitalet, DenmarkThe Ministry of Science, Technology and Innovation, DenmarkCompletedSecondary Recurrent MiscarriageDenmark
-
Assiut UniversityCompleted
-
UMC UtrechtCompleted
-
Woman's Health University Hospital, EgyptTerminatedRecurrent Pregnancy LossesEgypt
-
National Cheng-Kung University HospitalMinistry of Science and Technology, TaiwanCompletedCare in Women With History of Recurrent Miscarriage
-
Peking University Third HospitalUnknownInfertility | Recurrent Miscarriage | Recurrent Implantation FailureChina
-
Ain Shams UniversityCompleted
-
Omar Mamdouh ShaabanCompleted