Piezo-ICSI to Improve the Developmental Potential of Fertilized Oocytes in Aged Infertility Women With Assisted Reproductive Technology

June 13, 2024 updated by: Wang Shanshan, The Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School

A Single-center Randomized Controlled Trial on Piezo-ICSI Improving Oocyte Fertilization and Embryo Development in Elderly Infertile Patients

The goal of this clinical trial is to test Piezo-ICSI on improving oocyte fertilization and embryo development in elderly infertile patients undergoing intracytoplasmic sperm injection (ICSI). The main question it aims to answer is whether Piezo-ICSI could improve oocyte fertilization and embryo development. Participants requested ICSI are asked to randomly culture equal numbers of oocyte and embryo with or without Piezo-ICSI. At the time of injection, two or more mature oocytes were split into two groups (i) conventional ICSI and (ii) Piezo-ICSI (50:50 split).

Study Overview

Status

Recruiting

Conditions

Intervention / Treatment

Detailed Description

After being informed about the study and potential risks, all participants will write the informed contents. This study is a randomized controlled study compare different ICSI methods on the fertilization and embryo development. Sibling oocytes were randomly divided into test group (Piezo-ICSI) and control group (conventional ICSI).

Specific method of randomization: all the oocytes of each subject were distributed into two dishes (dish 1 and dish 2). If the oocyte number is odd, put the extra oocyte into dish 1. Using statistical software, the two dishes were randomly treated as test group and control group. Thus, a random allocation table was generated and a separate random envelope was made for each subject. The random envelope is kept and distributed by the relevant personnel who are not involved in the screening and treatment of subjects and are authorized by the researcher. Each selected subject must open the random envelope. The subjects were subjected to routine ovulation promotion, and then the acquired oocytes and cumulus cell complexes (COCs) were obtained and fertilized in vitro. The test group oocytes were fertilized with Piezo-ICSI, while the control oocytes were fertilized with conventional ICSI.

Thus, half of the oocytes from each elderly infertile patient were treated with Piezo-ICSI.

Study Type

Interventional

Enrollment (Estimated)

147

Phase

  • Not Applicable

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 Backup

Study Locations

  • China
    • Jiangsu
      • Nanjing, Jiangsu, China, 210008
        • Recruiting
        • Reproductive Medicine Center, The affiliated Drum Towel Hospital of Nanjing University Medical School
        • Contact:

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

Ages Eligible for Study

  • Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  1. 35 years ≤ age ≤ 42 years;
  2. Number of IVF/ICSI cycles ≤ 2

Exclusion Criteria:

  1. Egg donor cycle
  2. Chromosome abnormality;
  3. Adenomyosis, hysteromyoma, thin endometrium, endometriosis and other uterine diseases;
  4. Patients with repeated implantation failure

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

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Piezo-ICSI group, Oocytes in this group will be fertilized with Piezo-ICSI
The Piezo-ICSI technique involves the use a piezoelectric actuator to create high speed movement of the injection pipette. These fine movements allow precise microdrilling of the zona and smooth penetration of injection pipette into the cytoplasm and a single Piezo pulse facilitates breakage of the membrane, with the spermatozoa deposited into the cytoplasm without the need for cytoplasmic aspiration or agitation. Since the initial reports of the use of Piezo-ICSI in human oocytes, there have been notable improvements made to the technique, including a change in the operating fluid, leading to a safe and effective technique suitable for clinical use. In addition, when this technology was utilized in patients with poor outcomes, including low fertilization, high degeneration or low utilization in previous cycles, it resulted in improved fertilization, degeneration, embryo utilization and pregnancy rates compared with conventional ICSI.
Device: Piezo-ICSI
Participants had their oocytes cohort divided, where half were injected using conventional ICSI and the other half were injected using Piezo-ICSI.
No Intervention: Control group, Oocytes in this group will be fertilized with conventional ICSI

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
fertilization rate post intracytoplasmic sperm injection
Time Frame: 16-18 hours post intracytoplasmic sperm injection
The primary outcome measure was the fertilization rate 16-18 hours post intracytoplasmic sperm injection
16-18 hours post intracytoplasmic sperm injection

Collaborators and Investigators

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

Sponsor

The Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School

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)

November 20, 2023

Primary Completion (Estimated)

May 1, 2026

Study Completion (Estimated)

May 1, 2026

Study Registration Dates

First Submitted

June 3, 2024

First Submitted That Met QC Criteria

June 13, 2024

First Posted (Actual)

June 14, 2024

Study Record Updates

Last Update Posted (Actual)

June 14, 2024

Last Update Submitted That Met QC Criteria

June 13, 2024

Last Verified

June 1, 2024

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • SZ-Piezo-1

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

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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