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CompletedNCT03035721Updated Jun 29, 2017

Clinical Evaluation of a Low Protein Content Formula in the First Months of Life: a RCT

An interventional study of Low protein formula and Standard protein formula in Safety Issues and Infant Nutrition Disorders, sponsored by Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico. Completed at 1 site in Italy. Open to participants aged 1 Day to 3 Weeks, including healthy volunteers. Per ClinicalTrials.gov, last updated 2017-06-29.

Sponsored by Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico · Not applicable, Interventional, and Other

Phase
Not applicable
Study type
Interventional
Enrollment
150
Allocation
Randomized
Ages
1 Day to 3 Weeks
Sex
All
01

Study summary

This study aimed to evaluate the tolerance and safety of a low-protein formula in healthy full-term infants by investigating effects on growth and gastrointestinal tolerance and by identifying any adverse effects.

Read the detailed description

Infants were randomized to receive either a standard protein formula or a low-protein formula. The composition of the low-protein formula vs the standard formula was: energy (65 vs. 68 kcal/100 mL), protein (1.2 vs. 1.7 g/100 mL).

To investigate the safety of the low-protein formula without any bias, a 4-month intervention period was selected during which the infants were fed only formula.

Anthropometric parameters (weight, length, and head circumference) and body composition were assessed at enrollment, at 2 and 4 months' of age. Parents were asked to keep a diary on the occurrence of gastrointestinal symptoms or any other symptoms and were contacted every two weeks either by clinic visits or phone calls.

The reference group was constituted by a cohort of healthy, exclusively breastfed, full-term infants.

02

Conditions studied

  • Safety Issues
  • Infant Nutrition Disorders

Keywords

  • Full term healthy infants
  • Low protein content formula
  • Safety
  • Growth
  • Body composition
03

In context

Nutrition Disorders

275 studies on the registry are indexed under Nutrition Disorders; 31 are open to participants now.

This study's enrollment of 150 is above the median of 117 across 194 interventional studies indexed under Nutrition Disorders.

Browse Nutrition Disorders studies →

Lead sponsor

Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico is the lead sponsor of 214 studies on the registry; 71 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
1 Day to 3 Weeks
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • healthy
  • singleton
  • full-term infants (gestational age 37/0 to 41/6 weeks)
  • birth weight adequate for gestational age (>p10 and \<p90 for gestational age) according to the World Health Organization growth charts.

Exclusion criteria

Exclusion Criteria:

  • presence of congenital diseases
  • presence of chromosomal abnormalities
  • presence of conditions that could interfere with growth, such as brain, metabolic, cardiac and gastrointestinal diseases, perinatal infections.
  • being born to mother affected by endocrine and/or metabolic diseases
  • having a family history of allergic disease
05

Study design

Phase
Not applicable
Primary purpose
Other
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Outcomes assessor)
Enrollment
150 participants (actual)

Study arms

  • Experimental
    Low protein formula group

    Full term healthy infants randomized to receive a low protein formula for the first 4 months of life

    Dietary Supplement: Low protein formula

  • Active comparator
    Standard protein formula group

    Full term healthy infants randomized to receive a standard protein formula for the first 4 months of life

    Dietary Supplement: Standard protein formula

  • No intervention
    Breastfeeding group

    Breastfed full term healthy infants

Interventions

  • Dietary supplementLow protein formula

    Infants were enrolled to receive low protein formula (energy: 65 kcal/100 mL, protein: 1.2 g/100 mL, protein-to-energy ratio:1.9 g/100 kcal, carbohydrates: 8 g/100 mL, fat: 3.1 g/100 mL) for the firsts 4 months of life.

  • Dietary supplementStandard protein formula

    Infants were enrolled to receive standard protein formula (energy: 68 kcal/100 mL, protein: 1.7 g/100 mL, protein-to-energy ratio:2.5 g/100 kcal, carbohydrates: 7.1 g/100 mL, fat: 3.5 g/100 mL) for the firsts 4 months of life.

06

What researchers measure

Primary outcomes

  1. Evaluate weight

    Weight (g) of each baby was measured on an electronic scale accurate to 0.1 g (PEA POD Infant Body Composition System; Cosmed, Concord, CA, US). Body length was measured to the nearest 1 mm on a Harpenden neonatometer (Holtain, Crymych, UK).

    Time frame: enrollment, 2 months and 4 months

  2. Evaluate lenght

    Lenght (cm) of each baby was measured according standard procedures.

    Time frame: enrollment 2 months and 4 months

  3. Evaluate head circumference

    Head circumference was measured to the nearest 1 mm using non-stretch measuring tape.

    Time frame: enrollment 2 months and 4 months

  4. Evaluate body composition (fat mass and fat free mass)

    Body composition \[fat mass and fat free mass (g)\]was assessed using an air-displacement plethysmography (PEA POD Infant Body Composition System; COSMED, Italy).

    Time frame: enrollment, 2 months and 4 months

  5. Evaluate weight increase

    Weight increase (g/day) was calculated as a change in body weight from weight at study enrollment divided by the time interval from enrolment to the assessment at 4 months Fat mass (g/day) and fat free mass (g/day) increases were also calculated.

    Time frame: 2 months, 4 months

  6. Evaluate gastrointestinal tolerance

    Parents were asked to keep a diary on the occurrence of gastrointestinal symptoms or any other symptoms and were contacted every two weeks either by clinic visits or phone calls. The occurrence of spitting up, vomiting and colic, defined as intermittent attacks of abdominal pain when the baby screamed and drew up his/her legs but was well between episodes, was recorded. Colic was further classified as severe if the episodes were more than twice per day. Daily frequency of stool passage was also collected.

    Time frame: 2 months and 4 months

  7. Evaluate occurence of adverse events

    Adverse events were assessed based on inquires to the parents and on their daily records.

    Time frame: 2 months and 4 months

Secondary outcomes

  1. Evaluate body mass index (k/m2: weight/length2)

    Body mass index \[BMI: (Kg/m2)\] was assessed for all infants enrolled at each study points.

    Time frame: enrollment, 2 months and 4 months

  2. Evaluate z-score

    Z-scores values for age were then calculated using the z score calculator provided by WHO \[WHO Anthro (version 3.2.2, January 2011)\].

    Time frame: enrollment, 2 months and 4 months

07

Study locations

1 site
  • NICU, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico Milan
    Milano, 20122, Italy
08

References and documents

Publications

  • Liotto N, Orsi A, Menis C, Piemontese P, Morlacchi L, Condello CC, Gianni ML, Roggero P, Mosca F. Clinical evaluation of two different protein content formulas fed to full-term healthy infants: a randomized controlled trial. BMC Pediatr. 2018 Feb 13;18(1):59. doi: 10.1186/s12887-018-1046-6. Erratum In: BMC Pediatr. 2018 Apr 12;18(1):135. doi: 10.1186/s12887-018-1109-8. PubMed 29439736 ↗

Individual participant data

Plan to share: Undecided

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jun 29, 2017, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03035721
Lead sponsor
Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico
Collaborators
Humana Co.Ltd.
Responsible party
Sponsor
First posted
Jan 30, 2017
Start date
Jun 2014
Primary completion
Jan 2016
Completion
Jun 2016
Last update
Jun 29, 2017

Study contacts

Paola Roggero, MD
principal investigator · NICU. Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico Milano, Milan, Italy, 20122

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Jan 2017. You cannot join it, but the record below documents what was studied.

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