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AzTrials

Subfertility, FemalePhase 4NCT05753098

Effect of Sildenafil Citrate Compared to Estrogen as Adjuvant Therapy for Unexplained Infertility

A Phase 4 study testing estrogen therapy, Sildenafil and Clomiphene Citrate 50mg in people with Subfertility, Female, run by Beni-Suef University at 1 site in Egypt.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

. This study aimed to determine and compare the effect of vaginal sildenafil citrate and estradiol valerate on endometrial thickness, blood flow and pregnancy rates in infertile women. Read more about this study

Who is it for?
Ages 20 to 40 years, women onlyHealthy volunteers can take part
Conditions the study is for
Subfertility, Female
What is being tested?
estrogen therapy, Sildenafil and Clomiphene Citrate 50mg
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
148 participants
Where
1 siteEgypt
Study dates
15 Jan 2021to 31 Jan 2023
Phase
Phase 4
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 20 to 40 years
  • Women only
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • aged between 18 to 40 years
  • unexplained infertility (primary or secondary)
  • had a regular menstrual cycle;
  • patent tubes;
  • husbands with normal semen parameters.

Who cannot join

  • hypotension;
  • cardiovascular, hepatic, and renal diseases;
  • uncontrolled diabetes mellitus;
  • anovulatory infertility;
  • ovarian cysts;
  • pelvic adhesions;
Show all 12Show fewer
  • hyperprolactinemia;
  • abnormal thyroid functions;
  • multiple uterine fibroids;
  • patients on nitrates;
  • suspicion of endometriosis and adenomyosis,
  • subjects have known to receive any treatment for fertility in the last six months

Trial locations and contacts

1 site in 1 country.

Egypt1 site
  • Beni-suef university

    Banī Suwayf

Other trials in Egypt

About this study

Official title: Effect of Sildenafil Citrate Compared to Estrogen as Adjuvant Therapy on Improvement of Endometrial Thickness and Treatment of Unexplained Infertility

. This study aimed to determine and compare the effect of vaginal sildenafil citrate and estradiol valerate on endometrial thickness, blood flow and pregnancy rates in infertile women.

Read the detailed description

The study is a randomized controlled trial that was carried on 148 infertile women with unexplained infertility. Patients were divided into 3 groups. Group 1 included 48 patients who received oral estradiol valerate (Cyclo-Progynova 2mg, from day 8th till triggering of ovulation), another 50 patients in group 2 received oral Sildenafil (Respatio 20mg/12hr film coated tablets for 5 days starting from last day of menstruation till ovulation), while group 3 was the control one who included 50 patients were given ovulation induction with CC 50mg/12hr from 2nd to 7th day of cycle. Every patient underwent a transvaginal ultrasound to determine ovulation, number of follicles, and pregnancy rates. Miscarriage, ectopic pregnancy, and multiple pregnancies were tracked for 3 months, as were any adverse consequences.

Being tested
estrogen therapy, Sildenafil, Clomiphene Citrate 50mg
Medical subject headings
Infertility, Female

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • estrogen therapyDrug

    Also called white tablet of cycloprogynova

    oral estradiol valerate

  • SildenafilDrug

    Also called Respatio

    PDE5 inhibitor

  • Clomiphene Citrate 50mgDrug

    Also called Technovula

    used for ovulation induction

Study groups in NCT05753098
Study groupRoleWhat they receive
estrogen therapy in addition to clomiphene citrateExperimentalreceived clomiphene citrate 50 mg (Tecnovula®) orally twice daily from the 2nd to 7th day of the cycle and estrogen (Cyclopregnova® 2mg, white tablets, BAYER Schering pharma), one tablet every 12 hour from day 8th till triggering of ovulation.
Receives: Drug: estrogen therapy; Drug: Clomiphene Citrate 50mg
sildenafil in addition to clomiphene citrateExperimentalreceived clomiphene citrate 50 mg (Tecnovula®) orally twice daily from the 2nd to 7th day of the cycle as and Sildenafil (Respatio® 20mg film coated tablets for 5 days) from last day of menstruation till reaching optimal size of follicle and endometrial thickness
Receives: Drug: Sildenafil; Drug: Clomiphene Citrate 50mg
clomiphene citrate aloneOtherreceived clomiphene citrate 50 mg (Tecnovula®) orally twice daily from the 2nd to 7th day of the cycle as in the first and second groups in addition to placebo tablet.
Receives: Drug: Clomiphene Citrate 50mg

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. pregnancy rates

    measure B HCG and detect number of cases get pregnant in each cycle 28 days

    Measured: at the end of each of 3 cycles (28 days)

Secondary outcomes (1)
  1. ovulation

    measuring dominant follicle starting from D9 of the cycle till reaching 18-20mm

    Measured: 3 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted3 Mar 2023
  2. Study start15 Jan 2021
  3. Primary completion31 Jan 2023
  4. Study completion31 Jan 2023

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
148 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05753098
Sponsor's protocol ID
REC-H-PhBSU-22022
Status last verified
Apr 2023
First submitted
21 Feb 2023
Last updated
28 Apr 2023
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing estrogen therapy, Sildenafil and Clomiphene Citrate 50mg in people with Subfertility, Female, run by Beni-Suef University at 1 site in Egypt.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 12 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 28 Apr 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Egypt. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

pregnancy rates (time frame: at the end of each of 3 cycles (28 days)). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 28 Apr 2023.

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