AzTrials
AzTrials

Infertility, FemalePhase 1/2NCT03192709

Sildenafil and Outcome of IVF/ICSI Cycles

A Phase 1/2 study testing Sildenafil vaginal suppositories in people with Infertility, Female, run by Royan Institute at 1 site in Iran.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
Search all trials

Trial summary

Adequate growth of the endometrium is crucial for implantation. Accordingly, the pregnancy success rate of patients with a thin endometrium is low. Furthermore, there is a little information about the factors responsible for impaired endometrial growth in patients with a thin endometrium. Read more about this study

Who is it for?
Ages 16 to 38 years, women only
Conditions the study is for
Infertility, Female
What is being tested?
Sildenafil vaginal suppositories
Type of treatment
Injection or infusion
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
60 participants
Where
1 siteIran
Study dates
Feb 2015to Sep 2017
Phase
Phase 1/2
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 16 to 38 years
  • Women only
  • No healthy volunteers
  • Child, Adult

Who may be able to join

  • Women with normal ovarian reserve and had at least two prior cycle with FSH <10 mIu/ml
  • Women with history of two or three prior consecutive failed IVF/ICSI attempts using at least two good quality fresh or frozen-thawed embryos.
  • Endometrial thickness on the day of hCG injection was < 9 mm in all prior IVF/ICSI attempts
  • Women with normal endometrial appearance in hysteroscopy or hysterosonography or hysterosalpingography

Who cannot join

  • Women who had history of PCOS, myomectomy, Asherman's Syndrome and mullerian anomalies

Trial locations and contacts

1 site in 1 country.

Iran1 site, 1 recruiting
  • Royan Institute

    Tehrān

    Nasser Aghdami, MD,PhD, (+98)2123562000 ext. 516, nasser.aghdami@royaninstitute.org

    Leila Arab, MD, (+98)2123562000 ext. 414, Leara91@gmail.com

    Recruiting

Other trials in Iran

About this study

Official title: The Effect of Vaginal Sildenafil on the Outcome of IVF/ICSI Cycles in Patients With Repeated IVF/ICSI Failure: a Pilot Study

Adequate growth of the endometrium is crucial for implantation. Accordingly, the pregnancy success rate of patients with a thin endometrium is low. Furthermore, there is a little information about the factors responsible for impaired endometrial growth in patients with a thin endometrium. The researches have revealed that nitric oxide (NO) release can cause relaxation of vascular smooth muscle through a cyclic guanyl monophosphate (cGMP)-mediated pathway. Sildenafil is a type 5-specific Phosphodiesterase inhibitor that augments the vasodilatory effects of NO on vascular smooth muscle by preventing the degradation of cGMP and could improve blood flow and endometrial thickness. This study is designed to evaluate the effect of vaginally administered sildenafil suppositories on IVF/ICSI outcome of infertile patients with repeated IVF/ICSI failures.

Read the detailed description

The proposal of this study approved by our institutional review boards and institution's ethical committee, and all participants will sign a written consent before enter to study.

The study population will consist of infertile women of <38 years of age with repeated in vitro fertilization/ intra cytoplasmic injection failures. Endometrial parameters including endometrial thickness, endometrial pattern , pulsatility index (PI) and resistance index (RI) will be evaluated with the use of color Doppler ultrasound on the day of hCG administration. Patients will be randomly divided into 3 groups, A, B and C. In the subsequent menstrual cycle, in group A, vaginal sildenafil suppositories (100 mg/day) will be given daily from the start of human menopausal gonadotropin (HMG) administration day until the day of oocyte retrieval. In group B, the women will receive daily vaginal placebo from the start of HMG administration day until 2 days before the human chronic gonadotrophin (hCG) injection day, then will be switched to vaginal sildenafil suppositories (100 mg/day) until the day of oocyte retrieval. In group C, vaginal placebo will be given daily from the start of human menopausal gonadotropin (HMG) administration day until the day of oocyte retrieval.

When the diameter of at least 2 follicles will be reached equal or greater than 18 mm, hCG 10,000 IU will be administered. In all patients, ovarian stimulation will be performed with the conventional GnRh agonist protocol. Endometrial parameters will be measured again on the day of hCG injection. Ovum pick up will be performed 34-36 h after hCG injection and embryos will be transferred 48-72 hours after oocyte retrieval. Pregnancy will be confirmed by assessment of βHCG level 14 days after embryo transfer and ultrasonographic visualization of gestational sac during the 5th week of pregnancy.

Being tested
Sildenafil vaginal suppositories, vaginal placebo
Keywords
Sildenafil IVF ICI failure
Medical subject headings
Infertility, Female

What participants receive

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

  • Sildenafil vaginal suppositoriesDrug

    Sildenafil vaginal suppositories (100 mg/day) from the start of HMG administration day until the day of oocyte retrieval.

  • vaginal placeboOther

    Daily vaginal placebo from the start of HMG administration day until 2 days before the hCG injection day, then will be switched to vaginal sildenafil suppositories (100 mg/day) until the day of oocyte retrieval.

  • vaginal placeboOther

    Daily vaginal placebo from the start of HMG administration day until the day of oocyte retrieval.

Study groups in NCT03192709
Study groupRoleWhat they receive
AExperimentalSildenafil vaginal suppositories users
Receives: Drug: Sildenafil vaginal suppositories
BPlacebo comparatorDaily vaginal placebo users with HMG administration
Receives: Other: vaginal placebo
CPlacebo comparatorDaily vaginal placebo users with HMG administration day until the day of oocyte retrieval.
Receives: Other: vaginal placebo

What is being measured

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

  1. Clinical Pregnancy rate

    Evaluation the Clinical Pregnancy rate after using Sildenafil vaginal suppositories (100 mg/day) from the start of HMG administration day until the day of oocyte retrieval. It is detected by a positive ß-hCG test result and ultrasonographic visualization of at least one gestational sac

    Measured: 4-6 weeks after embryos transfer

Secondary outcomes (5)
  1. Implantation rate

    The implantation rate is defined as number of gestational sacs per transferred embryo. It Is detected by a positive ß-hCG test result and ultrasonographic visualization of at least one gestational sac 4-6 weeks after embryos transfer.

    Measured: 4-6 weeks

  2. Endometrial thickness

    The endometrial thickness is detected by ultrasound examination in hCG day administration.

    Measured: 1 day

  3. Endometrial pattern

    Comparing gray scale appearance of the endometrium to that of the adjacent myometrium at Day 14 of previous cycle.

    Measured: Day 14

  4. Pulsatility index

    The variability in flow between the systole and the diastole; this measure was calculated by dividing the difference between the peak systolic and end-diastolic frequencies by the time-average of the maximum frequency shift.This is measured at hCG administration day.

    Measured: 1 day

  5. Resistance index (RI)

    The RI is defined as a ratio of the difference between the maximum and minimum flow velocity to maximum flow velocity.This is measured at hCG administration day.

    Measured: 1 day

Timeline

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

  1. First posted20 Jun 2017
  2. Study startFeb 2015
  3. Primary completionAug 2017 (estimated)
  4. Study completionSep 2017 (estimated)

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 1/2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Triple blind
Who is masked
Participant, Investigator, Outcomes assessor
Enrolment
60 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03192709
Sponsor's protocol ID
Royan-Emb-030
Status last verified
Apr 2017
First submitted
30 Apr 2017
Last updated
20 Jun 2017
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Moini A, Zafarani F, Jahangiri N, Jahanian Sadatmahalleh SH, Sadeghi M, Chehrazi M, Ahmadi F. The Effect of Vaginal Sildenafil on The Outcome of Assisted Reproductive Technology Cycles in Patients with Repeated Implantation Failures: A Randomized Placebo-Controlled Trial. Int J Fertil Steril. 2020 Jan;13(4):289-295. doi: 10.22074/ijfs.2020.5681. Epub 2019 Nov 11.

    PubMed 31710189

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing Sildenafil vaginal suppositories in people with Infertility, Female, run by Royan Institute at 1 site in Iran.

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 4 inclusion and 1 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: status not confirmed, as of the sponsor's last update on 20 Jun 2017. 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 Iran. 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. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

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

Are results available for this study?

Results are not available in the source record.

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

Contact Nasser Aghdami, MD,PhD ((+98)2123562000 ext. 516, nasser.aghdami@royaninstitute.org), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Clinical Pregnancy rate (time frame: 4-6 weeks after embryos transfer). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03192709, which also lists 1 linked publication.

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 20 Jun 2017.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in