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Infant GrowthNutrObNCT06091917

Modulating Early-life Nutrition for Childhood Obesity Prevention

A study testing Betaine supplementation in infant formula and Regular infant formula in people with Infant Growth and Childhood Overweight, run by Fundació Sant Joan de Déu at 1 site in Spain.

Active, not recruiting

Under way, not looking for participants. Everyone needed has enrolled. The study is still running.

Official record
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Trial summary

In this study, betaine intake will be increased in formula-fed infants through formula milk supplementation. To do this, a double-blind randomized study has been designed with the supplementation group (infant formula supplemented with betaine) and control group (unsupplemented infant formula). Read more about this study

Who is it for?
Ages 0 to 4 weeksHealthy volunteers can take part
Conditions the study is for
Infant Growth, Childhood Overweight
What is being tested?
Betaine supplementation in infant formula and Regular infant formula
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
50 participants
Where
1 siteSpain
Study dates
31 Oct 2023to Dec 2026
Phase
Interventional
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 0 to 4 weeks
  • All sexes
  • Healthy volunteers accepted
  • Child

Who may be able to join

  • Maternal age between 17 and 42 years
  • Maternal pre-pregnancy BMI equal or higher than 25
  • Gestational age at birth > 37 weeks
  • No exclusive breastfeeding at time of recruitment

Who cannot join

  • Presence of disease or malformations in the infant
  • Infant birth weight < -1 SD (standard deviations)
  • Multiple pregnancy
  • Elective c-section

Trial locations and contacts

1 site in 1 country.

Spain1 site
  • Hospital Sant Joan de Déu

    Barcelona, Barcelona, 08950

Other trials in Spain

About this study

In this study, betaine intake will be increased in formula-fed infants through formula milk supplementation. To do this, a double-blind randomized study has been designed with the supplementation group (infant formula supplemented with betaine) and control group (unsupplemented infant formula). The main objectives of the study are to determine the safety of supplementation and to assess whether there are changes in infant growth.

Read the detailed description

Childhood obesity is one of the main public health concerns worldwide. Previous results have linked a nutrient called betaine (trimethylglycine) to the risk of childhood obesity. Betaine is a modified amino acid with osmotic properties that participates in the methionine cycle as a methyl group donor. Specifically, previous data demonstrate a link between breast milk betaine content, postnatal growth, and long-term metabolic health, suggesting that betaine supplementation may be an effective strategy for regulating growth trajectories and preventing childhood obesity. This study will assess the effects of increasing betaine intake in formula-fed infants through formula milk supplementation. To do this, a double-blind randomized study has been designed where participants will be randomly assigned to the control group or the supplementation group. The main objectives of the study are to determine the safety of supplementation and to assess whether there are changes in infant growth. Additionally, potential changes in the intestinal microbiome induced by the increase in betaine intake will be analyzed.

Being tested
Betaine supplementation in infant formula, Regular infant formula
Keywords
Betaine, infant formula, childhood obesity risk, infant growth, one-carbon metabolism
Medical subject headings
Pediatric Obesity

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Betaine supplementation in infant formulaDietary supplement

    Infant formula will be supplemented with betaine to provide a final concentration of 100 µmol/L in the reconstituted milk. The intervention will last for 12 weeks.

  • Regular infant formulaDietary supplement

    Regular (unmodified) infant formula . The intervention will last for 12 weeks.

Study groups in NCT06091917
Study groupRoleWhat they receive
Control groupSham comparatorUse of unmodified infant formula for 12 weeks
Receives: Dietary Supplement: Regular infant formula
Betaine supplementation groupExperimentalUse of infant formula supplemented with betaine (final concentration of 100 µmol/L) for 12 weeks
Receives: Dietary Supplement: Betaine supplementation in infant formula

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change in weight-for-length z score

    Weight and length will be measured at different time-points and combined to calculate weight-for-length z scores.

    Measured: From start to the end of treatment at 12 weeks and at 12 months of follow-up

  2. Changes in fecal microbiota composition

    Differences in features associated with a healthy mucosal layer and metabolic state (e.g. Bifidobacteria and Akkermansia relative amount). Stool samples will be processed to isolate the bacterial DNA. Microbiome composition will be determined by DNA sequencing.

    Measured: At 4 weeks and 12 weeks end of treatment, and at 12 months of follow-up

Secondary outcomes (2)
  1. Infant body composition

    Total body and abdominal fat mass measured by dual energy x-ray absorptiometry (DXA) scan

    Measured: At 12 months of follow-up

  2. Urine one-carbon metabolite concentration

    Urine samples will be analyzed to quantify betaine content as well as related metabolites (including dimethylglycine, the product of the betaine demethylation reaction

    Measured: At 4 weeks and 12 weeks after start of treatment

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted19 Oct 2023
  2. Study start31 Oct 2023
  3. Primary completionJun 2026 (estimated)
  4. Study completionDec 2026 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
50 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06091917
Sponsor's protocol ID
PIC-73-23
Acronym
NutrOb
Status last verified
Mar 2026
First submitted
13 Oct 2023
Last updated
20 Mar 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing Betaine supplementation in infant formula and Regular infant formula in people with Infant Growth and Childhood Overweight, run by Fundació Sant Joan de Déu at 1 site in Spain.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: under way, not looking for participants, as of the sponsor's last update on 20 Mar 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Spain. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change in weight-for-length z score (time frame: From start to the end of treatment at 12 weeks and at 12 months of follow-up). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 20 Mar 2026.

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