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Postdischarge nutrition in infants born <32 weeks gestation and/or <1500 grams birth weight: relation with growth, body composition, and metabolic health at 7 years.


- candidate number10078
- NTR NumberNTR2972
- ISRCTNISRCTN wordt niet meer aangevraagd.
- Date ISRCTN created
- date ISRCTN requested
- Date Registered NTR6-jul-2011
- Secondary IDsNL35113.000.10 CCMO
- Public TitlePostdischarge nutrition in infants born <32 weeks gestation and/or <1500 grams birth weight: relation with growth, body composition, and metabolic health at 7 years.
- Scientific TitlePostdischarge nutrition in infants born <32 weeks gestation and/or <1500 grams birth weight: relation with growth, body composition, and metabolic health at 7 years.
- ACRONYMSTEP2
- hypothesisPreterm born infants fed protein enriched postdischarge formula have similar catch-up growth for weight, length, and head circumference, but more lean mass, less fat mass, lower blood pressure, decreased salt sensitivity and higher bone mineralization at 7 years compared to those fed term formula. At 7 years, preterm born infants fed postdischarge formula are hypothesized to be comparable to infants fed human milk.
- Healt Condition(s) or Problem(s) studiedGrowth, Body composition, Blood pressure, Metabolic health
- Inclusion criteriaParticipants of the “Study Towards the Effect of Postdischarge nutrition on growth and body composition in infants born <32 weeks gestational age and/or <1500 gram birth weight” at 7 years of age.
- Exclusion criteriaSubjects with the following criteria will be excluded from the study:
1. Gastro-intestinal surgery and disease known to influence growth (i.e. cystic fibrosis);
2. Known presence of growth hormone, IGF-1, or other pituitary hormone deficiencies;
3. Concurrent therapies with substances known or suspected to be associated with alteration of growth;
4. Cardiac, renal, pulmonary, and liver disease;
5. Chromosomal and/or genetic syndromes (other than Silver-Russel);
6. Known presence of skeletal disease;
7. Severe illness.
- mec approval receivedyes
- multicenter trialno
- randomisedno
- groupParallel
- TypeSingle arm
- Studytypeobservational
- planned startdate 1-mrt-2011
- planned closingdate1-sep-2013
- Target number of participants100
- InterventionsSubjects will follow a regular diet for seven days followed by evaluation of blood pressure at our outpatient clinic. Several weeks later they use a regular diet enriched with 0,12 gram/kg/day salt (high salt diet) for seven days followed by a second evaluation of blood pressure at our outpatient clinic. Subject will be supplied with the amount of salt for seven days and receive strict instructions.
- Primary outcome1. Anthropometry;
2. Body composition (lean mass, fat mass).
- Secondary outcome1. Blood pressure;
2. Endocrine parameters (e.g. insulin, glucose, IGF-1, FT4, TSH, cortisol);
3. Salt sensitivity of blood pressure;
4. Lipid status;
5. Neuromotor and cognitive development;
6. Bone mineralization.
- TimepointsDay 1 and day 2 (2-4 weeks later).
- Trial web siteN/A
- statusstopped: trial finished
- CONTACT FOR PUBLIC QUERIESDrs. M. Lagemaat, van de
- CONTACT for SCIENTIFIC QUERIESProf. Dr. H.N. Lafeber
- Sponsor/Initiator VU University Medical Center
- Funding
(Source(s) of Monetary or Material Support)
FrieslandCampina, Hero BV, Breda
- PublicationsN/A
- Brief summaryRationale:
Early and aggressive feeding protocols in term low birth weight infants leading to increased growth in the first year of life are associated with increased risk of disease later in life, such as diabetes, cardiovascular disease and obesity. Preterm infants already are at risk for adverse metabolic effects. Insulin resistance and salt sensitivity are suggested to be major factors in the association between prematurity and diseases in later life. Early nutritional interventions, especially low salt intake, may decrease salt sensitivity. Higher protein intake with postdischarge formula between term date and 6 months corrected age results in more lean mass and less fat mass.

Objective:
The main objective of the study is to evaluate differences in body size, body composition and metabolic health at 7 years between children fed postdischarge formula and term formula. Secondary objectives are differences in bone mineralization and development at 7 years between children fed postdischarge formula, term formula and human milk. Also, differences in body size, composition and metabolic health at 7 years between children fed postdischarge formula and human milk are evaluated.

Study design:
This study is an interventional and observational follow up study.

Study population:
Subjects to be included are participants of the “Study Towards the Effect of Postdischarge nutrition on growth and body composition of infants born < 32 weeks gestational age and/or < 1500 gram birth weight”. They were fed postdischarge formula, term formula or human milk between term date and 6 months corrected age. All participants of the STEP study included up till 2 years corrected age will be approached for recruitment. Exclusion criteria are gastro-intestinal surgery, chromosomal and genetic syndromes and diseases known to influence growth. Subjects and their parents may withdraw at any time.

Main study parameters/endpoints:
The main study parameters are anthropometry (height, weight, head circumference and body proportions), body composition and salt sensitivity of blood pressure at 7 years of age.

Nature and extent of the burden and risks associated with participation, benefit and group relatedness:
Subjects will be asked to visit our outpatient clinic twice. Subjects are asked to collect three salivary samples before the first visit. Before resp. the first and second visit a regular diet and high salt diet is used for 7 days and a three day dietary dairy is kept. At both visits blood pressure will be measured and a fasting blood sample is collected for hormonal, renal and cholesterol parameters to evaluate metabolic health. On day 1 and 2 resp. 23.5 and 15.5 ml blood is drawn. Anthropometry, whole body DEXA scan and developmental tests will be performed.
- Main changes (audit trail)
- RECORD6-jul-2011 - 19-okt-2016


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