NCT04633044

Brief Summary

Developing more efficient and cost-effective prevention strategies to slow down the worldwide epidemic of obesity and chronic metabolic disease has become a public health imperative. Our previous results in humans demonstrate that lower breast milk betaine levels were associated with faster infant postnatal growth, a strong and potentially modifiable risk factor of future obesity. Betaine is a trimethylated derivative of glycine, which is present in multiple foods and occurs naturally in breast milk. In this study, we will perform a double-blind randomized placebo-controlled pilot clinical study, in which maternal diet will be supplemented with betaine for 3 months during breastfeeding; infant's growth and adiposity will be monitored until 12 months of age, and breast milk composition and gut microbiota analyzed. An additional follow-up visit will be conducted at 48 months of age to repeat microbiome analysis, determine adiposity, and perform cognitive development assessment.

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
47

participants targeted

Target at P50-P75 for phase_1

Timeline
5mo left

Started Feb 2021

Longer than P75 for phase_1

Geographic Reach
1 country

1 active site

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress93%
Feb 2021Oct 2026

First Submitted

Initial submission to the registry

November 9, 2020

Completed
9 days until next milestone

First Posted

Study publicly available on registry

November 18, 2020

Completed
3 months until next milestone

Study Start

First participant enrolled

February 11, 2021

Completed
2.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2023

Completed
2.8 years until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2026

Expected
Last Updated

March 24, 2026

Status Verified

September 1, 2025

Enrollment Period

2.9 years

First QC Date

November 9, 2020

Last Update Submit

March 19, 2026

Conditions

Outcome Measures

Primary Outcomes (2)

  • Change from birth weight-for-length z score at 1 month

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

    Birth and 1 month

  • Change from birth weight-for-length z score at 3 months

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

    Birth and 3 months

Secondary Outcomes (9)

  • Change from birth weight-for-length z score at 6 months

    Birth and 6 months

  • Change from birth weight-for-length z score at 12 months

    Birth and 12 months

  • Change from birth weight-for-length z score at 48 months

    Birth and 48 months

  • Infant Body composition

    3, 12 and 48 months

  • Breast milk concentration of betaine and related metabolites

    1 and 3 months

  • +4 more secondary outcomes

Other Outcomes (7)

  • Breast milk microbiota composition

    1 and 3 months

  • Breast milk metabolome

    1 and 3 months

  • Child development (ASQ-3 questionnaire)

    1, 3, 6, and 12 months

  • +4 more other outcomes

Study Arms (2)

Placebo

PLACEBO COMPARATOR

400 mg of lactose daily for 12 weeks

Dietary Supplement: Placebo

Supplement

EXPERIMENTAL

400 mg of betaine daily for 12 weeks

Dietary Supplement: Betaine

Interventions

BetaineDIETARY_SUPPLEMENT

The intervention with supplement will start during the first 48h after birth and will last for 12 weeks

Supplement
PlaceboDIETARY_SUPPLEMENT

The intervention with supplement will start during the first 48h after birth and will last for 12 weeks

Placebo

Eligibility Criteria

Age20 Years - 42 Years
Sexfemale
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • Maternal Pre-pregnancy BMI between 25 and 40.
  • Willing to exclusively breastfeed for ≥ 3 months
  • Infant gestational age at birth \> 37 weeks
  • Infant birth weight \> -1 standard deviations
  • Absence of infant disease or malformations at birth

You may not qualify if:

  • Multiple pregnancy
  • Lactose intolerance
  • CBS deficiency (inherited disease)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Hospital Sant Joan de Deu

Barcelona, Barcelona, 08950, Spain

Location

MeSH Terms

Conditions

OverweightObesity

Interventions

Betaine

Condition Hierarchy (Ancestors)

OvernutritionNutrition DisordersNutritional and Metabolic DiseasesBody WeightSigns and SymptomsPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

Trimethyl Ammonium CompoundsQuaternary Ammonium CompoundsAminesOrganic ChemicalsOnium Compounds

Study Design

Study Type
interventional
Phase
phase 1
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Model Details: Randomized placebo-controlled study with maternal dietary supplementation (betaine or placebo) for 3 months starting at infant birth and follow-up until 12 months of age. An additional follow-up will be performed at 48 months of age.
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 9, 2020

First Posted

November 18, 2020

Study Start

February 11, 2021

Primary Completion

December 31, 2023

Study Completion (Estimated)

October 1, 2026

Last Updated

March 24, 2026

Record last verified: 2025-09

Data Sharing

IPD Sharing
Will not share

Locations