About this trial
This study compares the effectiveness of cervical cerclage with vaginal progesterone to vaginal progesterone only for the prevention of preterm birth in women with a singleton pregnancy and a short cervical length. Participants will be randomly assigned in a 1:1 ratio to receive cerclage plus progesterone or progesterone only.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Maternal age ≥18 years
Singleton pregnancy
Cervical length ≤ 25 mm, measured by TVS at the second-trimester ultrasonography (16 0/7 - 24 0/7 weeks of gestation)
Not participating in any other study which has intervention on maternity or fetus
Disqualifiers
Cervical dilation with visible amniotic membranes or amniotic membranes prolapsed into the vagina
Major congenital abnormalities of the fetus
Intrauterine fetal demise
Presence of severe vaginal discharge*
Trial design
Parallel
Treatments tested in this trial
Cervical cerclage
Procedure/SurgeryCervical cerclage using the McDonald technique under anaesthesia.
Vaginal progesterone
DrugCyclogest® 200mg, Actavis, United Kingdom, applied once daily at bedtime.
Treatment groups
Trial outcomes
Primary outcomes
Time from randomization to delivery
Number of days between randomization and delivery
Secondary outcomes
Composite poor neonatal outcomes (major sencondary endpoint)
Stillbirth or neonatal death, intraventricular haemorrhage, respiratory distress syndrome, necrotizing enterocolitis or neonatal sepsis.
Miscarriage <22 weeks (late miscarriage)
spontaneous loss of pregnancy between 12 to 22 weeks is termed as late miscarriage
Gestational age at delivery
Gestational age at delivery
Preterm birth <24 weeks, <28 weeks, <32 weeks, <34 weeks and <37 weeks of gestation
Preterm birth is defined as any birth ≥ 22 and \< 37 completed weeks of gestation. Any birth \< 22 weeks is defined as late miscarriage
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