Gamete Treatment to Correct Fertilization Failure

NCT ID: NCT01944332

Last Updated: 2025-12-17

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

1200 participants

Study Classification

INTERVENTIONAL

Study Start Date

2007-09-30

Study Completion Date

2027-11-30

Brief Summary

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In this proposed research study, the investigators plan to assess the efficacy of gametes' (egg and sperm) treatment on fertilization as well as pre- and post-implantation embryo development.

Detailed Description

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The spermatozoa will be prepared in the standard fashion and utilized for injection after exposure to a membrane permeabilizing agent. The raw sperm specimen may be selected through a synthetic, sterile, single-use, culture-tested mesh. The specimen will then be placed in a 37°C environment. After 30 minutes, the selected portion is retrieved from the other side of the mesh. The spermatozoa will be prepared in the standard fashion will be utilized for injection or intrauterine insemination. Human recombinant PLC-zeta will also be used if the spermatozoa have been confirmed to be PLC-zeta deficient.

The injected oocytes will be then exposed to the previously mentioned activating agents for the purpose of inducing embryo development. The successfully fertilized oocytes will be further kept in culture for up to 5 days as per standard IVF/ICSI. Results in terms of fertilization and embryo cleavage will be assessed and monitored for the remainder of the culture period. Developing embryos selected according to standard criteria will be replaced to the patient or will be cryopreserved.

Because fertilization failure carries such a high emotional and financial toll on our patients, at the present time, the only method to generate an embryo for these cases is to perform assisted oocyte activation in conjunction with ICSI. The research intervention - assisted oocyte activation - is believed to help alleviate the failed fertilization by obtaining some zygotes for the patient. In these cases of complete failed fertilization, intracytoplasmic sperm injection (ICSI) will be performed as a routine clinical treatment even if they are not enrolled in the study. After several failures, their reproductive physician may recommend the use of donor spermatozoa instead of the male partner's.

Conditions

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Infertility

Study Design

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Allocation Method

NA

Intervention Model

SEQUENTIAL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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gamete treatment- oocytes and sperm

The spermatozoa will be prepared in the standard fashion and utilized for injection after exposure to a membrane permeabilizing agent. Patient specimen will be selected through a synthetic, sterile, single-use, culture-tested mesh. The specimen will then be placed in a 37°C environment. After 30 minutes, the selected portion is retrieved from the other side of the mesh. The injected oocytes will be then exposed to the previously mentioned activating agents for the purpose of inducing embryo development. The successfully fertilized oocytes will be further kept in culture for up to 5 days as per standard IVF/ICSI.

Group Type EXPERIMENTAL

gamete treatment

Intervention Type PROCEDURE

Patient specimen will be selected through a synthetic, sterile, single-use, culture-tested mesh. The specimen will then be placed in a 37°C environment. After 30 minutes, the selected portion is retrieved from the other side of the mesh. The spermatozoa will be prepared in the standard fashion and utilized for injection or intrauterine insemination after exposure to a membrane permeabilizing agent. Human recombinant PLC-zeta will also be used if the spermatozoa have been confirmed to be PLC-zeta deficient. The injected oocytes will then be exposed to activating agents for the purpose of inducing embryo development. The oocyte activating agent is calcium ionophore and for sperm membrane permeabilization to assist in sperm DNA decondensation is streptolysin O (SLO).

Interventions

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gamete treatment

Patient specimen will be selected through a synthetic, sterile, single-use, culture-tested mesh. The specimen will then be placed in a 37°C environment. After 30 minutes, the selected portion is retrieved from the other side of the mesh. The spermatozoa will be prepared in the standard fashion and utilized for injection or intrauterine insemination after exposure to a membrane permeabilizing agent. Human recombinant PLC-zeta will also be used if the spermatozoa have been confirmed to be PLC-zeta deficient. The injected oocytes will then be exposed to activating agents for the purpose of inducing embryo development. The oocyte activating agent is calcium ionophore and for sperm membrane permeabilization to assist in sperm DNA decondensation is streptolysin O (SLO).

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* Patients with complete fertilization failure with standard IVF or failure with one prior ICSI treatment cycle

* IVF without ICSI
Minimum Eligible Age

21 Years

Maximum Eligible Age

89 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Weill Medical College of Cornell University

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Gianpiero Palermo, MD, MPH

Role: PRINCIPAL_INVESTIGATOR

Weill Medical College of Cornell University

Locations

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Center fo Reproductive Medicine

New York, New York, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Rodriq Stubbs, NP

Role: CONTACT

646-962-3276

Iman Mohammed, MPH

Role: CONTACT

646-962-3274

Facility Contacts

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Rodriq Stubbs, NP

Role: primary

646-962-3276

Iman Mohammed, MPA

Role: backup

646-962-3274

Other Identifiers

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0712009553

Identifier Type: -

Identifier Source: org_study_id