AzTrials
AzTrials

Infertility, FemaleNCT04387994

Determination of Circulating Placental Biomarkers Levels to Predict the Pregnancy Outcome of First Trimester After IVF.

An observational study of Infertility, Female and First Trimester Spontaneous Abortion, run by Instituto Valenciano de Infertilidade de Lisboa at 1 site in Portugal.

Completed

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

Official record
Search all trials

Trial summary

This study will assess the predictive potential of circulating placental biomarkers for spontaneous miscarriage within the following month in an IVF setting. It is hypothesized that a robust algorithm including one or more of these biomarkers may allow for the accurate same-day distinction between women with a low and… Read more about this study

Who is it for?
Ages 18 to 48 years, women onlyHealthy volunteers can take part
What is being tested?
Blood samples collection
How many people
120 participants
Where
1 sitePortugal
Study dates
12 Jun 2020to 7 Dec 2021
Phase
Observational
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 48 years
  • Women only
  • Healthy volunteers accepted
  • Adult

Study population: 120 pregnant subjects, confirmed by blood βhCG test, following vitrified-warmed single blastocyst cycles performing IVF/Intracytoplasmic Sperm Injection (ICSI) with autologous oocytes without preimplantation genetic testing for aneuploidies (PGT-A).

Who may be able to join

  • Age: ≥18 and <49 years old
  • Body Mass Index (BMI): ≥18.5 Kg/m2 and <30 Kg/m2
  • Pregnancy resulting from Assisted Reproductive Technologies (ART)
  • Single blastocyst transfer pregnancy
  • Pregnancy confirmed by blood test
  • Gestational age < 6 weeks at the first US
  • Signed and dated informed consent

Who cannot join

  • Spontaneous pregnancies
  • Treatment for prevention of miscarriage (i.e. corticoids, aspirin, heparin)
  • Those unable to provide the 11th-13th week ultrasound report
  • Those unable to comprehend the investigational nature of the proposed study

Trial locations and contacts

1 site in 1 country.

Portugal1 site
  • Instituto Valenciano de Infertilidade de Lisboa

    Lisbon, 1800-282

Other trials in Portugal

About this study

Official title: Early Prediction of First Trimester Miscarriage After IVF With Serum Circulating Placental Biomarkers: a Pilot Study to Develop a Prediction Model.

This study will assess the predictive potential of circulating placental biomarkers for spontaneous miscarriage within the following month in an IVF setting. It is hypothesized that a robust algorithm including one or more of these biomarkers may allow for the accurate same-day distinction between women with a low and high risk of a spontaneous miscarriage.

Read the detailed description

Spontaneous miscarriage is the most common adverse outcome in the first trimester of pregnancy. This is a particularly stressful situation for the expecting parents, since their need for a final diagnosis is frustrated for a potentially extended period on time which may span over several weeks. The emotional impact of this complication can be devastating, resulting frequently in depression and anxiety which may last for several months.

In an attempt to allow for an earlier and more accurate diagnosis of first trimester miscarriage, multiple circulating placental biomarkers have been tested over last years. However, their potential usefulness in an everyday clinical setting remains unclear.

The investigators propose a single-center observational prospective cohort study in an in vitro fertilization (IVF) setting. All recruited consenting patients will collect blood samples on a day of the first pregnancy test (12-14 days after embryo transfer) and at the time of the first (at 5 weeks plus 4-5 days of gestational age) and second (at 7 weeks plus 4-5 days of gestational age) ultrasound scan to determine the circulating placental biomarkers concentrations in order to predict the pregnancy outcome (spontaneous miscarriage versus evolutive pregnancy) until the first obstetrical ultrasound, performed between 11 weeks and 13 weeks plus 6 days of gestational age.

Being tested
Blood samples collection
Keywords
Placental biomarkers, In vitro fertilization (IVF), Pregnancy outcome, Miscarriage, Early prediction, Intracytoplasmatic sperm injection (ICSI)
Medical subject headings
Infertility, Female, Abortion, Spontaneous

What participants receive

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

  • Blood samples collectionOther

    Collection of blood samples from consenting subjects to evaluate circulating biomarkers concentrations.

What is being measured

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

  1. Pregnancy outcome (spontaneous miscarriage versus evolutive pregnancy) at the first trimester ultrasound

    Measurement of circulating placental biomarkers levels

    Measured: Up to the first trimester ultrasound (11 to 13 weeks plus 6 days of gestation)

Secondary outcomes (2)
  1. Abnormal outcomes of early pregnancy (biochemical pregnancy and extra uterine pregnancy)

    Measurement of circulating placental biomarkers levels

    Measured: Up to the first trimester ultrasound (11 to 13 weeks plus 6 days of gestation)

  2. Risk of obstetric complications/adverse outcomes for first-trimester spontaneous miscarriage

    Measurement of circulating placental biomarkers levels

    Measured: Up to the first trimester ultrasound (11 to 13 weeks plus 6 days of gestation)

Timeline

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

  1. First posted14 May 2020
  2. Study start12 Jun 2020
  3. Primary completion7 Dec 2021
  4. Study completion7 Dec 2021

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
120 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04387994
Sponsor's protocol ID
1812-LIS-104-TS
Status last verified
Aug 2022
First submitted
11 May 2020
Last updated
4 Aug 2022
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

An observational study of Infertility, Female and First Trimester Spontaneous Abortion, run by Instituto Valenciano de Infertilidade de Lisboa at 1 site in Portugal.

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 7 inclusion and 4 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 4 Aug 2022. 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 Portugal. 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?

Pregnancy outcome (spontaneous miscarriage versus evolutive pregnancy) at the first trimester ultrasound (time frame: Up to the first trimester ultrasound (11 to 13 weeks plus 6 days of gestation)). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 4 Aug 2022.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in