Supply With Micronutrients (Purine and Pyrimidine) in Infants: a Prospective and Observational Study
Beobachtungsstudie Zur Versorgung Reif- Und Frühgeborener Mit ausgewählten Mikronährstoffen Wissenschaftliche Untersuchung Bei Minderjährigen
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Detaljeret beskrivelse
Collection of:
- cord plasma in preterm and term infants.
- remnants of clinically indicated blood samples of mothers 24 hours before or after birth.
- remnants of clinically indicated blood samples of preterm and term infants during neonatal care.
- breast milk once a weak during neonatal care of the infant.
Determination concentrations of micronutrients by mass spectrometry.
Aim is to compare cord plasma concentrations with postnatal plasma concentrations and to measure concentrations in breast milk to determine the actual supply.
Update September 2020:
The results obtained according to the original protocol revealed a serious sample instability when using remnants of clinical blood samples. Remnants can not be used and therefore the protocol had to be changed. A new approval of the Ethics Committee was obtained and is available to the study team. The following changes for sample collection were implemented: an additional blood sample (2.7ml EDTA blood) is taken from the mothers after approval.The blood samples of premature and newborns (max. 3x 0.2 ml) are obtained when a clinically indicated blood sample is taken. In both cases the serum is frozen immediately within one hour after collection.
Due to these changes, the expected end of the study is postponed to 2021.
Undersøgelsestype
Undersøgelsestype
Tilmelding (Forventet)
Tilmelding
Kontakter og lokationer
Studiekontakt
Studiekontakt
- Navn: Katrin Böckmann
- Telefonnummer: 82621 +49707129
- E-mail: katrin.a.boeckmann@gmail.com
Undersøgelse Kontakt Backup
- Navn: Axel Franz
- Telefonnummer: 83791 +49707129
- E-mail: axel.franz@med.uni-tuebingen.de
Studiesteder
-
-
-
Tuebingen, Tyskland, 72076
- Rekruttering
- University Children's Hospital Tuebingen
-
Kontakt:
- Axel Franz, MD
- Telefonnummer: +497071290
- E-mail: axel.franz@med.uni-tuebingen.de
-
Ledende efterforsker:
- Axel Franz, MD
-
-
Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Prøveudtagningsmetode
Studiebefolkning
Beskrivelse
Inclusion Criteria:
- 23+0-42+6 SSW
Exclusion Criteria:
- congenital malformation, genetic disorders
- metabolic disease of the infant
- missing agreement
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
Antal grupper/kohorter
Kohorter og interventioner
Gruppe / kohorteGruppe / kohorte |
Intervention / BehandlingIntervention / Behandling |
|---|---|
|
23-27w
preterm infants 23+0-27+6SSW
|
collection of cord blood
collection of remnant of clinically indicated blood sample
collection of remnant of clinically indicated blood sample.
If not available blood sample is taken after mother agreed
collection of breast milk 1/week during neonatal care (maximum 8 weaks)
|
|
28-31w
preterm infants 28+0-31+6SSW
|
collection of cord blood
collection of remnant of clinically indicated blood sample
collection of remnant of clinically indicated blood sample.
If not available blood sample is taken after mother agreed
collection of breast milk 1/week during neonatal care (maximum 8 weaks)
|
|
32-34w
preterm infants 32+0 - 34+6SSW
|
collection of cord blood
collection of remnant of clinically indicated blood sample
collection of remnant of clinically indicated blood sample.
If not available blood sample is taken after mother agreed
collection of breast milk 1/week during neonatal care (maximum 8 weaks)
|
|
35-36w
preterm infants 35+0-36+6 SSW
|
collection of cord blood
collection of remnant of clinically indicated blood sample
collection of remnant of clinically indicated blood sample.
If not available blood sample is taken after mother agreed
collection of breast milk 1/week during neonatal care (maximum 8 weaks)
|
|
37-42w
term infants 37+0-42+6
|
collection of cord blood
collection of remnant of clinically indicated blood sample
collection of remnant of clinically indicated blood sample.
If not available blood sample is taken after mother agreed
collection of breast milk 1/week during neonatal care (maximum 8 weaks)
|
Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Tidsramme |
|---|---|
|
Concentration of purine and pyrimidine in cord plasma
Tidsramme: at birth
|
at birth
|
Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Tidsramme |
|---|---|
|
Concentration of purine and pyrimidine in neonatal plasma
Tidsramme: at times when a clinically indicated blood sample is taken before discharge home from the initial neonatal hospitalization (at a postnatal age of up to 4-5 months at the most in very preterm infants)
|
at times when a clinically indicated blood sample is taken before discharge home from the initial neonatal hospitalization (at a postnatal age of up to 4-5 months at the most in very preterm infants)
|
|
Concentration of purine and pyrimidine in breast milk
Tidsramme: once a week before discharge home from the initial neonatal hospitalization, maximum 8 weeks
|
once a week before discharge home from the initial neonatal hospitalization, maximum 8 weeks
|
|
Concentration of purine and pyrimidine in plasma of mothers
Tidsramme: 24 hours before and after birth
|
24 hours before and after birth
|
Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Datoer for undersøgelser
Studer store datoer
Studiestart (Faktiske)
Studiestart
Primær færdiggørelse (Forventet)
Primær færdiggørelse
Studieafslutning (Forventet)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- NEO-MICRO
Plan for individuelle deltagerdata (IPD)
Planlægger du at dele individuelle deltagerdata (IPD)?
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