Clinical trials: Monochorionic Twins
Placenta, Monochorionic Twins
Placental Characteristics Within Monochorionic Twin Pregnancies
This prospective study aims to collate a comprehensive database of all main monochorionic twin groups to enable comparisons to be made within each twin group and additionally between each group with regards to several placental…
- Conditions
- Placenta, Monochorionic Twins, Anatomy
- Trial name
- NCT07124312
- Where
- United Kingdom
- Volunteers
- 65 people, healthy volunteers welcome
- Sponsor
- Birmingham Women's NHS Foundation Trust
Twin Pregnancy, Antepartum Condition or Complication, Twin to Twin Transfusion as Antepartum Condition
Multicenter Prospective Cohort Study of Twin Maternal-Child Dyads in China
Multicenter Prospective Cohort Study of Twin Maternal-Child Dyads in China (ChiTwiMC) is supported by National Key Research and Development Program of China - Reproductive Health and Women's and Children's Health Protection…
- Conditions
- Twin Pregnancy, Antepartum Condition or Complication, Twin to Twin Transfusion as Antepartum Condition, Pre-Term, Pre-Eclampsia
- Trial name
- ChiTwiMC (NCT06414655)
- Where
- 11 sites in China
- Volunteers
- 2,000 people, healthy volunteers welcome
- Sponsor
- Peking University Third Hospital
Twin Dichorionic Diamniotic Placenta, Twin Monochorionic Monoamniotic Placenta
Austrian Registry on the Outcome of Monochorionic Pregnancies
About one third of twin pregnancies are resulting from a single fertilized oocyte. Two third of these monozygotic twins share a common placenta and are therefore called monochorionic.
- Conditions
- Twin Dichorionic Diamniotic Placenta, Twin Monochorionic Monoamniotic Placenta, Twin-To-Twin Transfusion Syndrome, Twin Pregnancy With Antenatal Problem
- Trial name
- MonoReg (NCT03171909)
- Where
- 13 sites in Austria
- Volunteers
- 1,000 people, healthy volunteers welcome
- Sponsor
- Medical University of Graz
Preterm Birth, Preterm Labor
Is the Vaginal Microbiome and Metabolome Associated With Spontaneous Preterm Birth (sPTB) in Multiple Pregnancies?
The aim of this study is to try and find links between the microscopic organisms (such as bacteria, yeasts and viruses) in the vagina, and twin pregnancies that deliver too early (preterm birth).
- Conditions
- Preterm Birth, Preterm Labor, Multiple; Pregnancy, Complicated, Twin Dichorionic Diamniotic Placenta
- Trial name
- SPRUCE (NCT06053697)
- Where
- United Kingdom
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- University of Liverpool
Twin Placenta
A Study of the Placental Methylome of Dichorionic and Monochorionic Monozygotic Twin Pairs to Establish a Timeline of Epigenetic Programming
The timing of the moment of splitting is variable amongst twins and can be inferred from chorionicity, allowing a time-line of early environmental influences to be established.
- Trial name
- NCT05733065
- Testing
- saliva sample, questionnaire
- Where
- Belgium
- Volunteers
- 240 people, healthy volunteers welcome
- Sponsor
- University Hospital, Ghent
Prenatal Disorder, Premature Birth
Develop a Multi-disciplinary Approach for a Personalized Prenatal Diagnostics and Care for Twin Pregnancies
Different screening modalities evaluation to develop algorithms to predict pregnancy complications in twin pregnancies, and evaluation of serologic response to BNT162b2 Pfeizer/BioNTech vaccination.
- Conditions
- Prenatal Disorder, Premature Birth, Twin Pregnancy With Antenatal Problem, Twin; Pregnancy, Affecting Fetus or Newborn
- Trial name
- PRETWINSCREN (NCT04595214)
- Testing
- TTTS cases are treated by intra-uterine laser for separation.
- Where
- 7 sites in Belgium, Canada and 4 more
- Volunteers
- 1,200 people, healthy volunteers welcome
- Sponsor
- Assaf-Harofeh Medical Center
Twin Pregnancy, Monochorionic, Pregnancy Followed
Ductus Venosus Doppler at 16 Weeks in Monochorial Pregnancy
Studies shows that the realization of the Ductus venosus Doppler may improve the screening of the twin-twin transfusion syndrome.
- Trial name
- DVSTT (NCT03579069)
- Testing
- Ductus venosus Doppler
- Where
- France
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- University Hospital, Montpellier
Intrauterine Growth Retardation
Randomized Clinical Trial: Expectant Management vs Laser Treatment of Monochorionic Twins With Severe Selective Intrauterine Growth Retardation and Absent or Reverse Diastolic Flow in the Umbilical Artery
Intrauterine growth retardation (IUGR) occurs in approximately 3 to 10% of singleton pregnancies, in 9.1% of all twins and 9.9% of monochorionic twins.
- Trial name
- NCT01177553
- Testing
- selective laser photocoagulation of communicating vessels, Expected Management
- Where
- 2 sites in United States
- Volunteers
- 5 people, healthy volunteers welcome
- Sponsor
- University of South Florida