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CompletedNCT03475160Updated Mar 23, 2018

Sildenafil Citrate and Recurrent Abortion

An interventional study of Sildenafil Citrate vaginal suppositories and Placebo vaginal suppositories in Recurrent Abortion, sponsored by Benha University. Completed. Open to female participants aged 20 Years to 35 Years. Per ClinicalTrials.gov, last updated 2018-03-23.

Sponsored by Benha University · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Registered 2 years 3 months after the study started (first participant enrolled Dec 2015, registered Mar 2018).
Phase
Not applicable
Study type
Interventional
Enrollment
130
Allocation
Randomized
Ages
20 Years to 35 Years
Sex
Female
01

Study summary

Two groups of unexplained recurrent spontaneous abortion, each included 65 participants. scheduled randomly into; the study group received Sildenafil Citrate and Placebo group. The intervention started from day 21-23 of the cycle preceding spontaneous pregnancy and continued till the 12th-week of gestation.

The primary outcome measure was the difference in the live birth between both groups. Secondary outcome measures were the differences between both groups regard pulsatility index (PI) and resistance index (RI), a number of take-home babies, the reported side-effects of treatment and the pregnancy-related complications.

Read the detailed description

Two groups of unexplained recurrent spontaneous abortion, each included 65 participants. scheduled randomly into; the study group received Sildenafil Citrate and Placebo group. The intervention started from day 21-23 of the cycle preceding spontaneous pregnancy and continued till the 12th-week of gestation.

The primary outcome measure was the difference in the live birth between both groups. Secondary outcome measures were the differences between both groups regard PI and RI, a number of take-home babies, the reported side-effects of treatment and the pregnancy-related complications, e.g., preeclampsia and intrauterine growth restriction (\|IUGR).

02

Conditions studied

  • Recurrent Abortion

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03

In context

Abortion, Habitual

102 studies on the registry are indexed under Abortion, Habitual; 21 are open to participants now.

This study's enrollment of 130 is close to the median of 126 across 55 interventional studies indexed under Abortion, Habitual.

Browse Abortion, Habitual studies →

Lead sponsor

Benha University is the lead sponsor of 362 studies on the registry; 66 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
20 Years to 35 Years
Sexes eligible
Female
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Unexplained recurrent spontaneous abortion.

Exclusion criteria

Exclusion Criteria:

  • Abnormal uterine cavity.
  • Luteal phase insufficiency.
  • Endocrinal disorders, e.g., thyroid diseases, hyperprolactinemia, and Diabetes Mellitus.
  • Antiphospholipid syndrome.
  • Inherited or acquired thrombophilia.
  • Patients had renal, hepatic or cardiovascular diseases, hypertension, history of smoking, treated with vasodilators or sensitive to or developed severe side-effects with Sildenafil Citrate.
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
130 participants (actual)

Study arms

  • Active comparator
    Sildenafil Citrate

    Sildenafil Citrate vaginal suppositories: 25 mg every 6 hours. Uterine artery Doppler before treatment. Uterine artery Doppler after treatment.

    Drug: Sildenafil Citrate vaginal suppositories · Procedure: Uterine artery Doppler before treatment · Procedure: Uterine artery Doppler after treatment

  • Placebo comparator
    Placebo

    Placebo vaginal suppositories: every 6 hours. Uterine artery Doppler before treatment. Uterine artery Doppler after treatment.

    Drug: Placebo vaginal suppositories · Procedure: Uterine artery Doppler before treatment · Procedure: Uterine artery Doppler after treatment

Interventions

  • Sildenafil citrate vaginal suppositories. Uterine artery Doppler before treatment. Uterine artery Doppler after treatment.

    Also known as: Sildenafil Citrate

  • DrugPlacebo vaginal suppositories

    Placebo vaginal suppositories. Uterine artery Doppler before treatment. Uterine artery Doppler after treatment.

    Also known as: Placebo

  • ProcedureUterine artery Doppler before treatment

    Uterine artery Doppler before treatment: Uterine artery Doppler indices; PI and RI at cycle days 21-23 of the cycle preceding the pregnancy

  • ProcedureUterine artery Doppler after treatment

    Uterine artery Doppler after treatment: Uterine artery Doppler indices; PI and RI at the twelfth week of gestation

06

What researchers measure

Primary outcomes

  1. The difference between both groups in live birth

    Live birth is defined as an ongoing pregnancy past to the 20th week of gestation

    Time frame: Through study completion, an average of 9 months.

Secondary outcomes

  1. Uterine artery PI at cycle day 21-23 preceding pregnancy

    The difference between both groups regard PI at cycle day 21-23 preceding pregnancy

    Time frame: At cycle day 21-23 preceding pregnancy

  2. Uterine artery RI at cycle day 21-23 preceding pregnancy

    The difference between both groups regard RI at cycle day 21-23 preceding pregnancy

    Time frame: At cycle day 21-23 preceding pregnancy

  3. Uterine artery PI at the twelfth week of gestation

    The difference between both groups regard PI at the twelfth week of gestation

    Time frame: At the twelfth week of gestation.

  4. Uterine artery RI at the twelfth week of gestation

    The difference between both groups regard RI at the twelfth week of gestation

    Time frame: At the twelfth week of gestation.

07

Study locations

No study locations are listed for this record.

08

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Dec 2015 to primary completion in Dec 2017, 24 months.

How these figures are worked out, and which studies are left out of them.

Registered
Mar 9, 2018
First posted
Mar 23, 2018
StartActual
Dec 1, 2015
Primary completionActual
Dec 1, 2017
CompletionActual
Dec 1, 2017
Last update
Mar 23, 2018
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Mar 23, 2018, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT03475160
Lead sponsor
Benha University
Responsible party
Ahmed Walid Anwar Murad (Assistant Professor, Department of Obstetrics and Gynecology, Benha University) — Principal investigator
First posted
Mar 23, 2018
Start date
Dec 1, 2015
Primary completion
Dec 1, 2017
Completion
Dec 1, 2017
Last update
Mar 23, 2018

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Mar 2018. You cannot join it, but the record below documents what was studied.

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Studies of the drug tested here: Sildenafil

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