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InfertilityPrISICENCT03371745

The PrISICE Clinical Trial (Pre-Implantation Screening and Investigation on the Cryopreservation of Embryos)

A study testing Trophectoderm biopsy, Cryopreservation and Embryo Transfer in people with Infertility, run by Yale University at 3 sites in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

The trial objective is to determine whether the deferred transfer of embryos following cryopreservation at the blastocyst stage following pre-implantation genetic screening (PGS-FET) improves live birthrates compared to both the deferred transfer of cryopreserved embryos without PGS (FET) and immediate transfer at the… Read more about this study

Who is it for?
Ages 18 to 42 years, women only
Conditions the study is for
Infertility
What is being tested?
Trophectoderm biopsy, Cryopreservation and Embryo Transfer
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
32 participants
Where
3 sitesUnited States
Study dates
21 Aug 2018to 31 Dec 2019
Phase
Interventional
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 18 to 42 years
  • Women only
  • No healthy volunteers
  • Adult

Who may be able to join

  • Scheduled to undergo in vitro fertilization for treatment of infertility (1st or 2nd "fresh" attempt); subject can have had no more than one prior failed "fresh" IVF cycle
  • Couple able to participate in a research project
  • Able to understand study requirements
  • Willing to sign informed consent
  • Able to return for required follow-up
  • Access to telephone
  • Ability to read and write
  • Normal uterine cavity evaluation within one year of enrollment

Who cannot join

  • Medical conditions which may complicate treatment
  • No plans to undergo embryo transfer
  • Medical contraindication to the transfer of more than a single embryo (i.e. congenital uterine anomaly).
  • Concurrent participation in any other interventional trial
  • Recurrent pregnancy loss
  • Known chromosomal abnormality (e.g. translocation)
  • Pre-implantation genetic diagnosis requiring blastocyst biopsy

Trial locations and contacts

3 sites in 1 country.

United States3 sites
  • University of Oklahoma

    Oklahoma City, Oklahoma, 73104

  • University of Pennsylvania

    Philadelphia, Pennsylvania, 19104

  • University of California San Francisco

    San Francisco, California, 94115

Other trials in United States

About this study

Official title: A Prospective, Randomized, Controlled Clinical Trial Evaluating the Superiority of Preimplantation Genetic Screening (PGS) and Deferred Transfer of Cryopreserved Embryos Over "Freeze-Only" Deferred Transfer Without PGS or Immediate Embryo Transfer During a "Fresh" In Vitro Fertilization Cycle

The trial objective is to determine whether the deferred transfer of embryos following cryopreservation at the blastocyst stage following pre-implantation genetic screening (PGS-FET) improves live birthrates compared to both the deferred transfer of cryopreserved embryos without PGS (FET) and immediate transfer at the conclusion of a "fresh" in vitro fertilization (IVF) cycle (Fresh). Additionally, whether "freeze-only" (FET) improves live birth rates compared to "fresh" will be determined.

Read the detailed description

This will be a multi-center, prospective randomized clinical trial comparing three standards of care:

Group 1: PGS-FET group: deferred transfer of day 5/6/7 (blastocyst stage) embryos cryopreserved following trophectoderm biopsy Group 2: "freeze-only" (FET) group: deferred transfer of frozen/thawed embryos without biopsy Group 3: "fresh" ET group: immediate transfer of "fresh" embryos in the stimulation cycle.

1539 eligible couples will be recruited to participate. Couples will be randomized at retrieval to undergo cryopreservation with deferred embryo transfer, with or without PGS, or fresh embryo transfer during the cycle of egg retrieval. Number of embryos to transfer will be based on clinical estimation of embryo quality and will not exceed ASRM guidelines for embryo transfer number including newly revised guidelines. We are aware that the number of embryos transferred, to maintain enrollment, may not be equivalent, with likely more embryos transferred in patients not having PGS. The primary outcome of live birth/retrieval, with a secondary outcome of healthy singleton birth, may reflect the true benefit of PGS.

Conditions
Infertility
Being tested
Trophectoderm biopsy, Cryopreservation, Embryo Transfer
Medical subject headings
Infertility

What participants receive

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

  • Trophectoderm biopsyProcedure or surgery

    Biopsy at blastocyst stage of trophectoderm cells for comprehensive evaluation of the eupolid status of the embryo.

  • CryopreservationProcedure or surgery

    Rapid freezing using vitrification

  • Embryo TransferProcedure or surgery

    Transfer of embryo that has been cultured in vitro into the uterus

Study groups in NCT03371745
Study groupRoleWhat they receive
PGS-FETActive comparatorThe PGS-FET arm involves deferred transfer of embryos following cryopreservation at the blastocyst stage following pre-implantation genetic screening. This arm will culture embryos to day 5/6/7 (blastocyst stage). The embryos will be cryopreserved following trophectoderm biopsy. A subsequent frozen embryo transfer cycle will be performed during which 1 euploid (chromosomally normal) embryo will be thawed and transferred.
Receives: Procedure: Trophectoderm biopsy; Procedure: Cryopreservation; Procedure: Embryo Transfer
FETActive comparatorThe "Freeze only" arm involves the deferred transfer of embryos following cryopreservation. In this arm embryos will be cryopreserved. A subsequent frozen embryo transfer cycle will be performed during which one or more embryos will be thawed and transfered based on local clinical site, age-specific embryo number transfer guidelines.
Receives: Procedure: Cryopreservation; Procedure: Embryo Transfer
FreshActive comparatorThe Fresh arm will have an immediate embryo(s) transfer based on local clinical site, age-specific embryo number transfer guidelines within the stimulation cycle.
Receives: Procedure: Embryo Transfer

What is being measured

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

  1. Live Birth

    The number of subjects who deliver a live born infant which will be calculated into a live born delivery rate.

    Measured: up to 9 months or time of birth

Timeline

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

  1. First posted13 Dec 2017
  2. Study start21 Aug 2018
  3. Primary completion31 Oct 2019
  4. Study completion31 Dec 2019

Why it stopped: The Reproductive Medicine Network was disbanded

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 N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
32 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03371745
Sponsor's protocol ID
PrISICE
Acronym
PrISICE
Status last verified
Sep 2022
First submitted
8 Dec 2017
Last updated
3 Oct 2022
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: IPD data will be deposited in DASH following publication of the results of the primary paper and when the deidentified data have been put into a format that is acceptable for DASH submission.

Publications

  • Cornelisse S, Zagers M, Kostova E, Fleischer K, van Wely M, Mastenbroek S. Preimplantation genetic testing for aneuploidies (abnormal number of chromosomes) in in vitro fertilisation. Cochrane Database Syst Rev. 2020 Sep 8;9(9):CD005291. doi: 10.1002/14651858.CD005291.pub3.

    PubMed 32898291

Questions about this trial

What is this clinical trial studying?

A study testing Trophectoderm biopsy, Cryopreservation and Embryo Transfer in people with Infertility, run by Yale University at 3 sites in United States.

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 8 inclusion and 7 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: stopped early, as of the sponsor's last update on 3 Oct 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 3 sites in United States. 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.

Are results available for this study?

The study was stopped early (reason given: The Reproductive Medicine Network was disbanded). Results are not available in the source record.

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?

Live Birth (time frame: up to 9 months or time of birth). 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 NCT03371745, 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 3 Oct 2022.

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