Preterm Birth Clinical Trial
— TWIN-UICOfficial title:
Cervical Cerclage for Preventing Spontaneous Preterm Birth in Twin Pregnancies With Transvaginal Ultrasound Cervical Length ≤ 15mm: a Study Protocol for a Randomized Clinical Trial
NCT number | NCT03340688 |
Other study ID # | 17D.326 |
Secondary ID | |
Status | Recruiting |
Phase | N/A |
First received | |
Last updated | |
Start date | June 22, 2017 |
Est. completion date | June 2025 |
This is a multicenter randomized study designed to determine if ultrasound indicated cerclage reduces the incidence of spontaneous preterm birth <34 weeks in asymptomatic women with twin gestations and cervical length ≤15mm, diagnosed by transvaginal ultrasound between 16 to 23 6/7 weeks of gestation.
Status | Recruiting |
Enrollment | 200 |
Est. completion date | June 2025 |
Est. primary completion date | June 2024 |
Accepts healthy volunteers | No |
Gender | Female |
Age group | 18 Years to 60 Years |
Eligibility |
Inclusion Criteria: 1. Pregnant women more than 18 years of age (limits the participants to female gender) 2. Diamniotic twin pregnancy 3. Asymptomatic 4. Transvaginal cervical length = 15 mm between 16-23 6/7 weeks gestation Exclusion Criteria: 1. Singleton or higher order than twins multiple gestation 2. Transvaginal cervical length >15mm 3. Cervical dilation with visible amniotic membranes 4. Amniotic membranes prolapsed into the vagina 5. Fetal reduction after 14 weeks form higher order 6. Monoamniotic twins 7. Twin-twin transfusion syndrome 8. Ruptured membranes 9. Major fetal structural anomaly 10. Fetal chromosomal abnormality 11. Cerclage already in place for other indication 12. Active vaginal bleeding 13. Clinical chorioamnionitis 14. Placenta previa 15. Painful regular uterine contractions 16. Labor |
Country | Name | City | State |
---|---|---|---|
Egypt | The Egyptian IVF Center | Cairo | |
Italy | Bologna University | Bologna | |
Italy | University of Brescia | Brescia | |
Italy | Università degli Studi di Napoli "Federico II" | Naples | |
Spain | University of Barcelona | Barcelona | |
United States | Austin Maternal Fetal Medicine St David's Health Care | Austin | Texas |
United States | Thomas Jefferson University Hospital | Philadelphia | Pennsylvania |
United States | George Washington University | Washington | District of Columbia |
Lead Sponsor | Collaborator |
---|---|
Thomas Jefferson University | Federico II University |
United States, Egypt, Italy, Spain,
Conde-Agudelo A, Romero R, Hassan SS, Yeo L. Transvaginal sonographic cervical length for the prediction of spontaneous preterm birth in twin pregnancies: a systematic review and metaanalysis. Am J Obstet Gynecol. 2010 Aug;203(2):128.e1-12. doi: 10.1016/j — View Citation
Goldenberg RL, Iams JD, Miodovnik M, Van Dorsten JP, Thurnau G, Bottoms S, Mercer BM, Meis PJ, Moawad AH, Das A, Caritis SN, McNellis D. The preterm prediction study: risk factors in twin gestations. National Institute of Child Health and Human Developmen — View Citation
Hamilton BE, Hoyert DL, Martin JA, Strobino DM, Guyer B. Annual summary of vital statistics: 2010-2011. Pediatrics. 2013 Mar;131(3):548-58. doi: 10.1542/peds.2012-3769. Epub 2013 Feb 11. — View Citation
Roman A, Rochelson B, Fox NS, Hoffman M, Berghella V, Patel V, Calluzzo I, Saccone G, Fleischer A. Efficacy of ultrasound-indicated cerclage in twin pregnancies. Am J Obstet Gynecol. 2015 Jun;212(6):788.e1-6. doi: 10.1016/j.ajog.2015.01.031. Epub 2015 Jan — View Citation
Romero R, Conde-Agudelo A, El-Refaie W, Rode L, Brizot ML, Cetingoz E, Serra V, Da Fonseca E, Abdelhafez MS, Tabor A, Perales A, Hassan SS, Nicolaides KH. Vaginal progesterone decreases preterm birth and neonatal morbidity and mortality in women with a tw — View Citation
Saccone G, Rust O, Althuisius S, Roman A, Berghella V. Cerclage for short cervix in twin pregnancies: systematic review and meta-analysis of randomized trials using individual patient-level data. Acta Obstet Gynecol Scand. 2015 Apr;94(4):352-8. doi: 10.11 — View Citation
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Preterm delivery less than 34 weeks | Incidence of preterm birth less than 34 weeks (any indication) | at delivery | |
Secondary | Spontaneous preterm birth rates | Incidence of spontaneous preterm birth less than 34 weeks | at delivery | |
Secondary | Preterm delivery less than <32 weeks, <28 weeks, or <24 weeks | Incidence of preterm birth less than <32 weeks, <28 weeks, or <24 weeks | at delivery | |
Secondary | Mean gestational age at delivery | Mean value of gestational age at delivery (weeks) | at delivery | |
Secondary | Birth weight at birth | Mean value (grams) | at delivery | |
Secondary | Gestational age at spontaneous rupture of membranes | Mean value (weeks) through study completion | at delivery | |
Secondary | Premature rupture of membranes | Incidence | at delivery | |
Secondary | Chorioamnionitis | Incidence | at delivery | |
Secondary | Composite adverse neonatal outcome | Includes necrotizing enterocolitis, intraventricular hemorrhage (grade 3 or higher), respiratory distress syndrome, bronchopulmonary dysplasia, retinopathy, blood-culture proven sepsis | Incidence between birth and 28 days of age | |
Secondary | Neonatal death | Incidence | Between birth and 28 days of age | |
Secondary | Maternal death | Incidence | Between birth and 6 weeks postpartum | |
Secondary | Interval between diagnosis and delivery | Mean value (days) through study completion | at delivery |
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