NCT02442492

Sildenafil Therapy In Dismal Prognosis Early-Onset Intrauterine Growth Restriction

STRIDER Canada: A Randomized Controlled Trial of Sildenafil Therapy In Dismal Prognosis Early-Onset Intrauterine Growth Restriction (Canada)

• Status: Terminated
• Phase: Phase 2 / Phase 3
• Study type: Interventional
• Enrollment: 21 (actual)
• Sponsor: University of British Columbia · Academic / Other
• Sex: Female
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

Early-onset placental intrauterine growth restriction (EO IUGR) is associated with a high risk of perinatal morbidity and mortality. In association with reduced circulating placental growth factor (PlGF) EO IUGR results from abnormal placentation with inadequate remodelling of the maternal uteroplacental arteries. There is no known treatment for placental IUGR. Management involves intensive fetal surveillance with delivery with evidence of serious fetal compromise. However, remote from term, delivery is associated with significant perinatal mortality and morbidity. Sildenafil vasodilates the uteroplacental vessels of IUGR-affected pregnancies and may represent a novel therapy.

Detailed description

STRIDER Canada is one of a consortium of STRIDER randomised controlled trials (RCTs) each of which is designed to determine whether or not maternal treatment with oral sildenafil citrate improves perinatal outcomes in pregnancies complicated by EO IUGR without increasing risks to the mother. STRIDER Canada is designed as investigator-initiated double-blind, randomised placebo-controlled trial of 90 women with a diagnosis of early-onset intrauterine growth restriction with an intention-to-treat analysis. 90 Women with affected pregnancies will be recruited and randomised to receive either sildenafil or placebo. Women reviewed in the participating fetal medicine with a diagnosis of a pregnancy affected by early-onset IUGR between 18+0 and 27+6 weeks of gestation and serum PlGF levels less than 5th percentile for gestational age will be considered for randomisation. In Canadian STRIDER, the treatment with either sildenafil or placebo (25 mg 3 times per day) will be applied from the time of randomisation until delivery, or up to 31+6 weeks of gestation whichever comes first. All patients randomly assigned to one of the treatments will be analysed together, regardless of whether or not they completed or received that treatment, on an intention to treat basis.

Conditions

• Intrauterine Growth Restriction (IUGR)
• Fetal Growth Restriction (FGR)

Interventions

Type	Name	Description
DRUG	Sildenafil	Sildenafil 25 mg tablets three times daily orally from randomization until delivery or 31+6 weeks of gestational age, whichever is sooner.
DRUG	Placebo	Placebo 25 mg tablets three times daily orally from randomization until delivery or 31+6 weeks of gestational age, whichever is sooner.

Timeline

• Start date: 2017-01-01
• Primary completion: 2018-07-01
• Completion: 2019-04-01
• First posted: 2015-05-13
• Last updated: 2020-02-11

Locations

5 sites across 1 country: Canada