Validation of a Test for Fetal Malformations
20. mars 2018 oppdatert av: Theoreo Srl
Blind Validation of a Metabolomics Based Test for the Non-invasive Screening of Fetal Malformations
The investigators have developed a diagnostic test for the evaluation of the presence of fetal malformations through metabolomic analysis of maternal peripheral blood serum by chromatographic techniques and mass spectrometry, and subsequent mathematical modeling analysis of the data by means of multivariate mathematical models specifically developed for this purpose.
The study aims at determining the performance parameters (specificity, sensibility, positive predictive value (PPN), negative predictive value (NPV), etc.) of the test and its applicability.
To do this, the investigators will use the serum samples of the patients enrolled in New Zealand in the SCOPE Study (www.scopestudy.net),
an international study conducted between years 2004-2008.
Studieoversikt
Detaljert beskrivelse
The test has been developed in a case-control study.
In this clinical trial the investigators will test it in a large cohort that is likely to resemble a real population.
The purpose of validation is to see if the test is able to recognize the few malformed fetuses in the entire population and especially its specificity in real conditions.
In addition, the investigators will check whether particular maternal conditions (such as preeclampsia, gestational diabetes, etc.) or fetal conditions (Small for gestational age, Large for gestational age, etc.) affect the test results.
Studietype
Observasjonsmessig
Registrering (Forventet)
1943
Kontakter og plasseringer
Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.
Studiesteder
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Salerno
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Montecorvino Pugliano, Salerno, Italia, 84090
- Theoreo srl
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Deltakelseskriterier
Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
- Barn
- Voksen
- Eldre voksen
Tar imot friske frivillige
Ja
Kjønn som er kvalifisert for studier
Hunn
Prøvetakingsmetode
Ikke-sannsynlighetsprøve
Studiepopulasjon
The study population is the ones selected by the SCOPE Study in New Zealand
Beskrivelse
Inclusion criteria were the ones designed by SCOPE Study:
- Nulliparous women, with a singleton pregnancy, between 14wks, 0 days and 16wks, 6 days gestation who give informed consent to participate in SCOPE.
Exclusion criteria were the ones designed by SCOPE Study:
- Unsure of last menstrual period (LMP)
- Unwilling to have ultrasound scan at ≤20 weeks
- ≥3 miscarriages
- ≥3 terminations
- Essential hypertension treated pre-pregnancy
- Moderate-severe hypertension at booking ≥160/100 mmHg
- Diabetes
- Renal disease
- Systemic lupus erythematosus
- Anti-phospholipid syndrome
- Sickle cell disease
- HIV positive
- Major uterine anomaly
- Cervical suture
- Knife cone biopsy
- Ruptured membranes now
- Long term steroids
- Treatment low-dose aspirin
- Treatment calcium (>1g/24h)
- Treatment eicosapentanoic acid (fish oil)
- Treatment vitamin C ≥1000 mg & Vit E ≥400 iu
- Treatment heparin/low molecular weight heparin
Studieplan
Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.
Hvordan er studiet utformet?
Designdetaljer
Kohorter og intervensjoner
Gruppe / Kohort |
Intervensjon / Behandling |
|---|---|
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19-21 weeks' gestation
The test validation will be performed on the 1943 serum samples of pregnant women at 19-21 weeks' gestation recruited in New Zealand for the SCOPE Study. All the samples will be analyzed to extract and purify the whole metabolome. Metabolites will be characterized through mass spectrometric techniques. These data will be interpreted by means of a bioinformatic algorithm specifically designed for this purpose. |
The serum samples will be used to get a metabolomic profile
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14-16 weeks' gestation
Five hundred subjects at 14-16 weeks gestation were randomly selected from the whole cohort of patients.
The serum samples collected at 14-16 weeks gestation will be used to test the diagnostic performance at this earlier gestational phase.
|
The serum samples will be used to get a metabolomic profile
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Hva måler studien?
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
Diagnostic test performance evaluation in dichotomic classification at 19-21 weeks' gestation
Tidsramme: 6 months
|
Assessment of the sensitivity, likelihood ratios and performances (diagnostic accuracy) in the identification of a malformed fetus through the analysis of a serum sample from a mother at 19-21 weeks' gestation
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6 months
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Diagnostic test performance evaluation in the individuation of the exact diagnosis of fetal malformation at 19-21 weeks' gestation
Tidsramme: 6 months
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Assessment of the sensitivity, likelihood ratios and performances (diagnostic accuracy) in the identification of the type of malformation through the analysis of a serum sample from a mother at 19-21 weeks' gestation
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6 months
|
Sekundære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
Diagnostic test performance evaluation in dichotomic classification at 14-16 weeks gestation
Tidsramme: 6 months
|
Assessment of the sensitivity, likelihood ratios and performances (diagnostic accuracy) in the identification of a malformed fetus through the analysis of a serum sample from a mother at 19-21 weeks' gestation
|
6 months
|
|
Diagnostic test performance evaluation in the individuation of the exact diagnosis of fetal malformation at 14-16 weeks gestation
Tidsramme: 6 months
|
Assessment of the sensitivity, likelihood ratios and performances (diagnostic accuracy) in the identification of the type of malformation through the analysis of a serum sample from a mother at 14-16 weeks gestation
|
6 months
|
Samarbeidspartnere og etterforskere
Det er her du vil finne personer og organisasjoner som er involvert i denne studien.
Sponsor
Etterforskere
- Hovedetterforsker: Jacopo Troisi, Dr., CEO
Publikasjoner og nyttige lenker
Den som er ansvarlig for å legge inn informasjon om studien leverer frivillig disse publikasjonene. Disse kan handle om alt relatert til studiet.
Studierekorddatoer
Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.
Studer hoveddatoer
Studiestart
1. september 2016
Primær fullføring (Faktiske)
1. desember 2017
Studiet fullført (Faktiske)
1. desember 2017
Datoer for studieregistrering
Først innsendt
14. november 2016
Først innsendt som oppfylte QC-kriteriene
15. november 2016
Først lagt ut (Anslag)
16. november 2016
Oppdateringer av studieposter
Sist oppdatering lagt ut (Faktiske)
22. mars 2018
Siste oppdatering sendt inn som oppfylte QC-kriteriene
20. mars 2018
Sist bekreftet
1. oktober 2017
Mer informasjon
Begreper knyttet til denne studien
Ytterligere relevante MeSH-vilkår
Andre studie-ID-numre
- MV-01
Plan for individuelle deltakerdata (IPD)
Planlegger du å dele individuelle deltakerdata (IPD)?
JA
IPD-planbeskrivelse
Test validation of the screening technique will be conducted blinded.
The investigators will have access only to the serum samples identified by their unique ID.
At the end of the analytical phase, the database containing results will be locked.
The database will be transferred to an independent investigator (Prof.
Alessio Fasano at Mass General Hospital for Children, Boston, USA) for data analysis.
At the same time, information related to pregnancy outcomes (in terms of presence or absence of fetal anomaly) will be transferred from the University of Auckland to the Mass General Hospital for Children, which will provide the blind break and will procced to the estimation of the test performance.
Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .