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SurvivalNCT01952184

Oocyte Survival After Vitrification in an Open or Closed Device With Closed Storage.

A study testing CBSvit HS device and Cryotop SC device in people with Survival and Embryo Quality, run by Universitair Ziekenhuis Brussel at 1 site in Belgium.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The survival rate (and embryo quality) of donor oocytes with two commercially available devices. Read more about this study

Who is it for?
Ages 18 to 36 years, women onlyHealthy volunteers can take part
Conditions the study is for
Survival, Embryo Quality
What is being tested?
CBSvit HS device and Cryotop SC device
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
48 participants
Where
1 siteBelgium
Study dates
Sep 2013to Jul 2015
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 36 years
  • Women only
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Donor: ≤36 years old on day of oocyte retrieval
  • Donor: ≥ 6 mature oocytes

Who cannot join

  • Donor: < 6 mature oocytes

Trial locations and contacts

1 site in 1 country.

Belgium1 site
  • Universitair Ziekenhuis Brussel

    Jette, Brussels Capital, 1090

Other trials in Belgium

About this study

Official title: Oocyte Survival After Vitrification in an Open or Closed Commercial Device: Study on Sibling Donor Oocytes.

The survival rate (and embryo quality) of donor oocytes with two commercially available devices.

Read the detailed description

Donor sibling oocytes will be vitrified with two commercially available devices. The first device is closed vitrification with closed storage and the second device is open vitrification with closed storage. Oocyte acceptors receive oocytes from both devices. With the increase in cooling rate generated by the open vitrification (second device), we expect to get an increase in survival rate of 10%. Besides this, embryo quality will be assessed with oocytes obtained from both devices.

Being tested
CBSvit HS device, Cryotop SC device
Keywords
vitrification, oocyte, donor, open, closed

What participants receive

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

  • CBSvit HS deviceDevice

    closed vitrification with closed storage

  • Cryotop SC deviceDevice

    open vitrification with closed storage

Study groups in NCT01952184
Study groupRoleWhat they receive
closed vitrification with closed storageActive comparatorHalf of the oocytes of every donor will be vitrified with the Cryo Bio Systems High Security vitrification (CBSvit HS) device; the standard device in our lab.
Receives: Device: CBSvit HS device
open vitrification with closed storageExperimentalHalf of the oocytes of every donor will be vitrified with the Cryotop closed system (Cryotop SC).
Receives: Device: Cryotop SC device

What is being measured

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

  1. Survival rate

    The purpose is to assess the survival rate of donor oocytes with the two vitrification devices.

    Measured: up to 6 days after every warming cycle

Secondary outcomes (1)
  1. Embryo development

    The purpose is to analyse the pre-implantation development of donor oocytes vitrified with two different devices.

    Measured: up to 6 days after every warming cycle

Timeline

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

  1. First posted27 Sep 2013 (estimated)
  2. Study startSep 2013
  3. Primary completionJul 2015
  4. Study completionJul 2015

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
48 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01952184
Sponsor's protocol ID
2013/777
Status last verified
Dec 2015
First submitted
24 Sep 2013
Last updated
3 Dec 2015
Results posted
No
Data monitoring committee
No

Publications

  • De Munck N, Santos-Ribeiro S, Stoop D, Van de Velde H, Verheyen G. Open versus closed oocyte vitrification in an oocyte donation programme: a prospective randomized sibling oocyte study. Hum Reprod. 2016 Feb;31(2):377-84. doi: 10.1093/humrep/dev321. Epub 2016 Jan 2.

    PubMed 26724798

Questions about this trial

What is this clinical trial studying?

A study testing CBSvit HS device and Cryotop SC device in people with Survival and Embryo Quality, run by Universitair Ziekenhuis Brussel at 1 site in Belgium.

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 2 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: finished, as of the sponsor's last update on 3 Dec 2015. 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 Belgium. 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 is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Survival rate (time frame: up to 6 days after every warming cycle). 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 NCT01952184, 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 Dec 2015.

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