Clinical trials: Twin Diseases
Conjoined Twin
Conjoined Twins: a Report of Four Cases.
The present study aims to report our experience in conjoined twin separation surgery in Assuit university and pediatric hospital, Assiut university, Assiut, Egypt over a period of 20 years.
- Trial name
- CT (NCT03388684)
- Testing
- Conjoined twin separation surgery
- Volunteers
- 4 people
- Sponsor
- Assiut University
Stress Disorders, Post-Traumatic, Depression
Veteran Health Study
The purpose of The Veteran Health Study (CSP #569) is to better understand the mental and physical health of veterans as they get older.
- Conditions
- Stress Disorders, Post-Traumatic, Depression, Diabetes, Cardiovascular Disease
- Trial name
- NCT01175629
- Where
- United States
- Volunteers
- 7,568 people
- Sponsor
- US Department of Veterans Affairs
Twin; Pregnancy, Affecting Fetus or Newborn, Fetal Growth Retardation
Selective Fetal Growth Restriction in Monochorionic Twins - an International Investigation
Optimal diagnostic management and underlying pathophysiological mechanisms of selective fetal growth restriction (sFGR) in monochorionic diamniotic (MCDA) twin pregnancies have not been fully clarified.
- Conditions
- Twin; Pregnancy, Affecting Fetus or Newborn, Fetal Growth Retardation, Twin Monochorionic Diamniotic Placenta, Twin Diseases
- Trial name
- CONTRAST (NCT05952583)
- Testing
- Ultrasound
- Where
- 6 sites in United States, Belgium and 4 more
- Volunteers
- 274 people
- Sponsor
- Leiden University Medical Center
Normal Pregnancy
Maternal and Umbilical Cord Hormone Concentrations in Twin and Singleton Pregnancies
This study will examine levels of hormones, such as estrogen and testosterone, in maternal and umbilical cord blood to compare hormones between mothers who are having twins and mothers who are having one baby.
- Trial name
- NCT00341263
- Where
- United States
- Volunteers
- 111 people
- Sponsor
- National Cancer Institute (NCI)
Cardiovascular Diseases, Cerebrovascular Accident
Stroke Risk in the NAS-NRC Twin Registry
To investigate stroke risk using the National Academy of Sciences Twin Registry.
- Conditions
- Cardiovascular Diseases, Cerebrovascular Accident, Myocardial Infarction, Coronary Disease
- Trial name
- NCT00005413
- Sponsor
- National Heart, Lung, and Blood Institute (NHLBI)
Preterm Birth
17OHP for Reduction of Neonatal Morbidity Due to Preterm Birth (PTB) in Twin and Triplet Pregnancies
Hypothesis: Among women with twin or triplet pregnancies, weekly injections of 17-alpha-hydroxyprogesterone caproate (17OHP), started before 24 weeks of gestation, will reduce neonatal morbidity by reducing the rate of preterm…
- Trial name
- 170HP (NCT00163020)
- Testing
- 17-alpha-hydroxyprogesterone caproate injectable
- Where
- 18 sites in United States
- Volunteers
- 321 people
- Sponsor
- Obstetrix Medical Group
Twin Pregnancy With Antenatal Problem
Vaginal Progesterone 400mg v.s 200mg for Prevention of Preterm Labor in Twin Pregnancies
It is already known that the risk of preterm labor in twin pregnancy before 37 week is 8-9 fold higher compared to singletons, and progesterone supplementation can decrease the incidence of preterm labor in singleton pregnancy.
- Trial name
- NCT04748562
- Testing
- Progesterone
- Where
- Egypt
- Volunteers
- 100 people
- Sponsor
- Ain Shams University
Herpes Zoster
T Cell Responses to Varicella Zoster Virus (VZV) Vaccine SLVP020
In this study the investigators are trying to identify immune signatures that are associated with effective or poor vaccine responses to naturally-acquired herpes zoster virus and the zoster (shingles) vaccine, Zostavax.
- Trial name
- NCT01911065
- Testing
- Zostavax™
- Where
- United States
- Volunteers
- 54 people, healthy volunteers welcome
- Sponsor
- Stanford University
Preterm
Cerclage Plus Progesterone vs Progesterone Alone in Twin Short Cervix
This study aims to compare the effectiveness of cervical cerclage combined with progesterone versus progesterone alone in preventing preterm birth among women with twin pregnancies and a short cervix (cervical length ≤ 30 mm).
- Trial name
- VNTWINC (NCT07372495)
- Testing
- Cervical cerclage, Progesterone
- Where
- 6 sites in Vietnam
- Volunteers
- 260 people
- Sponsor
- National Hospital of Obstetrics and Gynecology
Cardiovascular Diseases, Coronary Disease
Genetic Epidemiology of Coronary Heart Disease Risk in Women Twins
To examine genetic and environmental influences on several recently identified coronary heart disease risk factors in identical and fraternal adult women twins.
- Conditions
- Cardiovascular Diseases, Coronary Disease, Heart Diseases
- Trial name
- NCT00005239
- Sponsor
- National Heart, Lung, and Blood Institute (NHLBI)
Twin Pregnancy, Antepartum Condition or Complication, Gestational Diabetes
Diet in Twin Pregnancy: the Wellness of Mother and Babies.
The aim of this study is to evaluate how variations in maternal nutrition may affect twin pregnancy and in particular: incidence of maternal obstetric complications: gestational diabetes gestational hypertension or preeclampsia…
- Conditions
- Twin Pregnancy, Antepartum Condition or Complication, Gestational Diabetes, Gestational Hypertension, Intrahepatic Cholestasis of Pregnancy
- Trial name
- FIT (NCT05773677)
- Testing
- Specific Diet
- Where
- Italy
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Fondazione Policlinico Universitario Agostino Gemelli IRCCS
Malocclusion, Angle Class II, Overbite (Excessive) Horizontal
Long-term Stability of Treatment With the Twin Block Appliance
The objective of this observational study is to investigate the long-term stability of treatment with the Twin block appliance in a patient group previously treated with a Twin block appliance.
- Conditions
- Malocclusion, Angle Class II, Overbite (Excessive) Horizontal, Overbite (Excessive) Deep, Treatment Outcome
- Trial name
- NCT07752498
- Where
- Sweden
- Volunteers
- 72 people
- Sponsor
- Region Jönköping County
Pygopagus Conjoined Twins, Separation Surgery
The Importance of Physiotherapy After Separation Surgery in Pygopagus Conjoined Twins
Motor function delays are observed in pygopagus conjoined twins due to limited movement experience and deficits in proprioceptive sense.
- Conditions
- Pygopagus Conjoined Twins, Separation Surgery, Pediatric Physiotherapy
- Trial name
- NCT06599281
- Testing
- Physiotherapy
- Where
- Turkey (Türkiye)
- Volunteers
- 4 people
- Sponsor
- Acıbadem Atunizade Hospital
Obesity
Genetic Influences Between Cognitive Function and BMI
In this study the investigators will interrogate an existing data set to examine whether genetic variants contribute to an inverse association between weight status and cognitive function.
- Trial name
- NCT03116334
- Where
- United States
- Volunteers
- 869 people, healthy volunteers welcome
- Sponsor
- Baylor College of Medicine
Monochorionic Diamniotic Placenta, Monochorial Monoamniotic Placenta
Database of Monochorionic Pregnancies
The purpose of this study is to collect and analyze data regarding natural history, indications for fetal interventions, and maternal and fetal/neonatal outcomes associated with complicated monochorionic twin pregnancy.
- Conditions
- Monochorionic Diamniotic Placenta, Monochorial Monoamniotic Placenta, Twin; Complicating Pregnancy, Twin to Twin Transfusion Syndrome
- Trial name
- NCT05543499
- Where
- United States
- Volunteers
- 1,200 people
- Sponsor
- University of Miami
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
Influenza
T-cell And General Immune Response to Seasonal Influenza Vaccine (SLVP018) Year 3, 2011
This study will investigate markers, mechanisms and define general predictors for immunological health by comparing influenza vaccine responses in monozygotic and dizygotic twins.
- Trial name
- NCT03022422
- Testing
- TIV, High-Dose TIV
- Volunteers
- 63 people, healthy volunteers welcome
- Sponsor
- Stanford University
Anemia
Treatment and Prevention of Anemia With Ferrous Sulfate Plus Folic Acid in Children in Goiania - Goias, Brazil
Iron deficiency anemia is the most common nutritional problem in the world. The objectives of this study are: to evaluate the prevalence of anemia in children from 6 to 24 months of age and the therapeutic and prophylactic…
- Trial name
- NCT00701246
- Testing
- ferrous sulfate, folic acid
- Where
- Brazil
- Volunteers
- 196 people
- Sponsor
- Universidade Federal de Goias
Class II Malocclusion, Mandibular Deficiency
Dentoskeletal Effects of 3D-Printed Fixed Twin Block Versus MARA Appliances in Management of Skeletal Class II
Objective: to evaluate the dentoskeletal effects of CAD/CAM 3D-Printed fixed twin block versus MARA appliances in the management of skeletal class II due to Mandibular Deficiency in Preadolescence Class II malocclusion is…
- Trial name
- NCT07340242
- Testing
- MARA appliance, fixed twin block
- Where
- Egypt
- Volunteers
- 60 people
- Sponsor
- Mansoura University
Hematologic Pregnancy Complications
Doubling the Iron Dose to Prevent IDA in Twin Pregnant Women
In twin pregnancies, the maternal iron demands are magnified, estimated at 1.8 times more than in singleton pregnancies due to greater maternal red blood cell mass and plasma volume expansion as well as increased fetal and…
- Trial name
- IDA (NCT03836703)
- Testing
- Feroglobin single daily use, Feroglobin twice daily dose
- Where
- Egypt
- Volunteers
- 450 people, healthy volunteers welcome
- Sponsor
- Ain Shams University