Comparative Study to Assess the Ongoing Pregnancy Rate for Poor Responders Women Undergoing Different Embryo Transfer Protocols

July 23, 2025 updated by: Wael Elbanna, Wael Elbanna Clinic

A Prospective, Four Arms, Open Label, Comparative Study to Assess the Ongoing Pregnancy Rate for Poor Responders Women Undergoing Different Embryo Transfer Protocols

Published data on sequential transfer are limited and are not consistent. Also, further research into methods of risk combination and assessment, would allow us to help our patients make better-informed decisions about whether or not to proceed with invasive diagnostic tests as the PGS. So our study aims to describe the ongoing pregnancy rate for poor responders women undergoing four different embryo transfer protocols among four arms within the study. Moreover, to describe the miscarriage rate, and the baseline characteristics for the same population. This clinical study will be conducted in compliance with the clinical study protocol and applicable regulatory requirements.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

The study aims to describe the ongoing pregnancy rate for poor responders women undergoing four different embryo transfer protocols among four arms within the study. Moreover, to describe the miscarriage rate, and the baseline characteristics for the same population. This clinical study will be conducted in compliance with the clinical study protocol and applicable regulatory requirements.

This study is prospective, comparative, open label and multi-center study. The study participants' relevant medical records will be collected and reviewed after obtaining informed consent for the participants.

The study materials that will be used will include blood tests, and ultrasound. The study will involve four study arms:

Arm 1: Poor responders women undergoing frozen sequential embryo transfer on Day 3 and Day 5 Arm 2: Poor responders women undergoing sequential fresh embryo transfer on Day 3 and Day 5 Arm 3: Poor responders women undergoing sequential embryo transfer on Day 3 and Day 5 after performing PGS Arm 4: Poor responders women undergoing conventional frozen embryo transfer on Day 5

Primary and secondary key measurements will be used in the study.

The primary measures will include:

  • Presence of intrauterine gestational sac at 12 weeks beyond embryo transfer
  • Presence of fetal heart pulsation at 12 weeks beyond embryo transfer

The secondary key measures will include:

  • Occurance of abortion between week 7 and week 20 of gestation
  • Recording the the baseline characteristics of the study participants

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
291

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • Egypt
      • Cairo, Egypt
        • Wael Elbanna Clinic

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

25 years to 45 years (Adult)

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

Poor responders women undergoing one of the following:

  1. Sequential embryo transfer on day 3 and day 5 in a frozen cycle
  2. Sequential embryo transfer on day 3 and day 5 in a fresh cycle
  3. Sequential embryo transfer on day 3 and day 5 after performing PGS
  4. Conventional Day 5 frozen embryo transfer

Description

Inclusion Criteria:

  1. The age group of these women is 25-45 years
  2. Normal endometrial cavity confirmed by hysteroscopy
  3. Poor responders with AMH <1
  4. Patients with at least grade 1 days 3 embryo and grade 1 day 5 frozen embryos

Exclusion Criteria:

  1. Patients with any immunological disorders
  2. Patients with uncontrolled systemic diseases
  3. Patients with previous uterine surgeries except for Cesarean section

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Arm 1
Poor responders women undergoing frozen sequential embryo transfer on Day 3 and Day 5
Procedure: Embryo transfer method
  1. Sequential embryo transfer on day 3 and day 5 in a frozen cycle
  2. Sequential embryo transfer on day 3 and day 5 in a fresh cycle
  3. Sequential embryo transfer on day 3 and day 5 after performing PGS
  4. Conventional Day 5 frozen embryo transfer
Arm 2
Poor responders women undergoing sequential fresh embryo transfer on Day 3 and Day 5
Procedure: Embryo transfer method
  1. Sequential embryo transfer on day 3 and day 5 in a frozen cycle
  2. Sequential embryo transfer on day 3 and day 5 in a fresh cycle
  3. Sequential embryo transfer on day 3 and day 5 after performing PGS
  4. Conventional Day 5 frozen embryo transfer
Arm 3
Poor responders women undergoing sequential embryo transfer on Day 3 and Day 5 after performing PGS
Procedure: Embryo transfer method
  1. Sequential embryo transfer on day 3 and day 5 in a frozen cycle
  2. Sequential embryo transfer on day 3 and day 5 in a fresh cycle
  3. Sequential embryo transfer on day 3 and day 5 after performing PGS
  4. Conventional Day 5 frozen embryo transfer
Arm 4
Poor responders women undergoing conventional frozen embryo transfer on Day 5
Procedure: Embryo transfer method
  1. Sequential embryo transfer on day 3 and day 5 in a frozen cycle
  2. Sequential embryo transfer on day 3 and day 5 in a fresh cycle
  3. Sequential embryo transfer on day 3 and day 5 after performing PGS
  4. Conventional Day 5 frozen embryo transfer

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
ongoing pregnancy rate for poor responders women in the four arms
Time Frame: Till the end of 12 weeks of gestation

Recording the following for the four arms of the study:

  • Presence of intrauterine gestational sac at 12 weeks beyond embryo transfer
  • Presence of fetal heart pulsation at 12 weeks beyond embryo transfer
Till the end of 12 weeks of gestation

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
miscarriage rate for poor responders women in the four arms
Time Frame: Till the end of 20 weeks of gestation

Recording the following for the four arms of the study:

- Occurance of abortion between week 7 and week 20 of gestation
Till the end of 20 weeks of gestation
The baseline characteristics of the study participants
Time Frame: Before study intervention of the four arms (at day 2 in the ovulation induction cycle)

Recording the following for the four arms of the study:

-age , body mass index in kg/m^2
Before study intervention of the four arms (at day 2 in the ovulation induction cycle)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Wael Elbanna Clinic

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
National Research Centre, Egypt

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
September 10, 2021

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
October 20, 2023

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
November 12, 2024

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
August 14, 2021

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 14, 2021

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
August 20, 2021

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
July 28, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 23, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
July 1, 2025

More Information

Terms related to this study

Keywords

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • Elbanna_003

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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