Supply With Micronutrients (Purine and Pyrimidine) in Infants: a Prospective and Observational Study

NCT ID: NCT03532633

Last Updated: 2020-09-18

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Total Enrollment

150 participants

Study Classification

OBSERVATIONAL

Study Start Date

2017-03-01

Study Completion Date

2021-10-01

Brief Summary

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Concentrations of micronutrients (especially purine and pyrimidine) in cord blood, blood of mothers and infants and human milk is studied

Detailed Description

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Collection of:

1. cord plasma in preterm and term infants.
2. remnants of clinically indicated blood samples of mothers 24 hours before or after birth.
3. remnants of clinically indicated blood samples of preterm and term infants during neonatal care.
4. 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.

Conditions

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Prematurity

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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23-27w

preterm infants 23+0-27+6SSW

cord blood

Intervention Type PROCEDURE

collection of cord blood

blood sample infant

Intervention Type PROCEDURE

collection of remnant of clinically indicated blood sample

blood sample mother

Intervention Type PROCEDURE

collection of remnant of clinically indicated blood sample. If not available blood sample is taken after mother agreed

breast milk

Intervention Type PROCEDURE

collection of breast milk 1/week during neonatal care (maximum 8 weaks)

28-31w

preterm infants 28+0-31+6SSW

cord blood

Intervention Type PROCEDURE

collection of cord blood

blood sample infant

Intervention Type PROCEDURE

collection of remnant of clinically indicated blood sample

blood sample mother

Intervention Type PROCEDURE

collection of remnant of clinically indicated blood sample. If not available blood sample is taken after mother agreed

breast milk

Intervention Type PROCEDURE

collection of breast milk 1/week during neonatal care (maximum 8 weaks)

32-34w

preterm infants 32+0 - 34+6SSW

cord blood

Intervention Type PROCEDURE

collection of cord blood

blood sample infant

Intervention Type PROCEDURE

collection of remnant of clinically indicated blood sample

blood sample mother

Intervention Type PROCEDURE

collection of remnant of clinically indicated blood sample. If not available blood sample is taken after mother agreed

breast milk

Intervention Type PROCEDURE

collection of breast milk 1/week during neonatal care (maximum 8 weaks)

35-36w

preterm infants 35+0-36+6 SSW

cord blood

Intervention Type PROCEDURE

collection of cord blood

blood sample infant

Intervention Type PROCEDURE

collection of remnant of clinically indicated blood sample

blood sample mother

Intervention Type PROCEDURE

collection of remnant of clinically indicated blood sample. If not available blood sample is taken after mother agreed

breast milk

Intervention Type PROCEDURE

collection of breast milk 1/week during neonatal care (maximum 8 weaks)

37-42w

term infants 37+0-42+6

cord blood

Intervention Type PROCEDURE

collection of cord blood

blood sample infant

Intervention Type PROCEDURE

collection of remnant of clinically indicated blood sample

blood sample mother

Intervention Type PROCEDURE

collection of remnant of clinically indicated blood sample. If not available blood sample is taken after mother agreed

breast milk

Intervention Type PROCEDURE

collection of breast milk 1/week during neonatal care (maximum 8 weaks)

Interventions

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cord blood

collection of cord blood

Intervention Type PROCEDURE

blood sample infant

collection of remnant of clinically indicated blood sample

Intervention Type PROCEDURE

blood sample mother

collection of remnant of clinically indicated blood sample. If not available blood sample is taken after mother agreed

Intervention Type PROCEDURE

breast milk

collection of breast milk 1/week during neonatal care (maximum 8 weaks)

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* 23+0-42+6 SSW

Exclusion Criteria

* congenital malformation, genetic disorders
* metabolic disease of the infant
* missing agreement
Minimum Eligible Age

0 Minutes

Maximum Eligible Age

6 Months

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University Hospital Tuebingen

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Axel Franz

Role: PRINCIPAL_INVESTIGATOR

University Hospital Tuebingen

Locations

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University Children's Hospital Tuebingen

Tübingen, , Germany

Site Status RECRUITING

Countries

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Germany

Central Contacts

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Katrin Böckmann

Role: CONTACT

+49707129 ext. 82621

Axel Franz

Role: CONTACT

+49707129 ext. 83791

Facility Contacts

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Axel Franz, MD

Role: primary

+497071290

Other Identifiers

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NEO-MICRO

Identifier Type: -

Identifier Source: org_study_id

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