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Sildenafil and Uteroplacental Perfusion

Phase 2 Study of Fetal Growth Retardation Treatment by Sildenafil

Status
UNKNOWN
Phases
Phase 2Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01107782
Enrollment
70
Registered
2010-04-21
Start date
2008-06-30
Completion date
2012-01-31
Last updated
2011-02-23

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Fetal Growth Retardation

Keywords

sildenafil, FGR

Brief summary

The purpose of this study is to determine whether sildenafil is effective and safe in the treatment of fetal growth restriction.

Detailed description

Fetal growth retardation affects up to 8% of all pregnancies and has massive short term (increased fetal morbidity and mortality) and long-term (increased incidence of cardiovascular disorders in adulthood) health implications. Doppler waveform analysis of these pregnancies suggests compromised uteroplacental circulation and placental hypoperfusion. Our aim is to assess if sildenafil citrate could improve vasodilatation in FGR pregnancies. Sildenafil citrate may offer a potential therapeutic strategy to improve uteroplacental perfusion in FGR. Animal studies suggest that phosphodiesterase-5 (PDE5) inhibitors, such as sildenafil citrate, may improve uterine blood flow .

Interventions

DRUGsildenafil

50 mg TDS orally until birth

DRUGplacebo

50mg tid

Sponsors

Tehran University of Medical Sciences
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
FEMALE
Healthy volunteers
Yes

Inclusion criteria

* FGR pregnancies in 24-37 weeks of GA

Exclusion criteria

* vasodilator agents usage * history of cardiovascular morbidity specially of right heart side * drug or alcohol abusers * systolic BP more than 210 mm Hg or diastolic BP more than 120 mm Hg

Design outcomes

Primary

MeasureTime frame
Uteroplacental Perfusion2 hours after sildenafil ingestion

Secondary

MeasureTime frameDescription
fetal growthafter 6 months
umbilical artery blood gass assessmentimmediately after birth
effect on fetal well being2 hours after sildenafilwhen BP score is\<8 we repeat it after sildenafil ingestion

Countries

Iran

Contacts

Primary Contactsayedeh afagh hosseini, M.D.
afahoss@yahoo.com+989188111670

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026