On Pregnancy After Losses - OPAL Study
Launched by LEIDEN UNIVERSITY MEDICAL CENTER · Dec 21, 2021
Trial Information
Current as of June 27, 2025
Not yet recruiting
Keywords
ClinConnect Summary
The OPAL Study is a clinical trial aimed at helping couples who have experienced recurrent pregnancy loss (RPL), which means they have lost two or more pregnancies before the fetus could survive outside the womb. This study seeks to understand the chances of having a successful pregnancy in the future, especially for couples who have not been able to find a clear reason for their losses. By gathering information from both past and current couples dealing with RPL, the researchers hope to provide individualized predictions about the likelihood of having a healthy baby in the next three years and during future pregnancies.
To be eligible for this study, couples must have experienced at least two pregnancy losses in their current relationship and include women aged 42 years or younger. Participants can expect to provide information about their pregnancy history and will not face any direct risks from joining the study. While they may not receive immediate benefits from participating, the findings could lead to better support and care for couples facing similar challenges in the future. The study will collect data for up to five years to help improve understanding and management of recurrent pregnancy loss.
Gender
ALL
Eligibility criteria
- Inclusion Criteria:
- Couples that fulfill the following criteria are included (according to the ESHRE Recurrent Pregnancy Loss Guideline 2017):
- * RPL in the current relationship: defined as the loss of ≥ 2 preceding pregnancies. These pregnancy losses include:
- • all pregnancy losses before the 24th week of gestation verified by ultrasonography or uterine curettage and histology
- • non-visualized pregnancies (including biochemical pregnancy losses and/or resolved and treated pregnancies of unknown location), verified by positive urine or serum hCG
- • both consecutive and non-consecutive pregnancy losses
- • Dutch or English speaking couple
- • Couples with females aged ≤42 years at intake
- Exclusion Criteria:
- • Mental or legal incapability of either the male or female of the couple
- • Loss of \< 2 pregnancies in current relationship
About Leiden University Medical Center
Leiden University Medical Center (LUMC) is a prominent academic medical center located in the Netherlands, renowned for its commitment to advancing healthcare through innovative research and high-quality patient care. As a clinical trial sponsor, LUMC focuses on translating scientific discoveries into effective therapies, fostering collaborations between researchers, clinicians, and industry partners. The center is dedicated to conducting rigorous clinical studies across various medical fields, ensuring adherence to ethical standards and regulatory requirements while prioritizing patient safety and outcomes. Through its multidisciplinary approach, LUMC aims to contribute significantly to the understanding and treatment of complex health conditions, driving progress in personalized medicine and improving global health.
Contacts
Jennifer Cobb
Immunology at National Institute of Allergy and Infectious Diseases (NIAID)
Locations
Patients applied
Timeline
First submit
Trial launched
Trial updated
Estimated completion
Not reported
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