Lactoferrin-enriched Dairy Product in Gestational Diabetes

NCT ID: NCT07287384

Last Updated: 2025-12-17

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

COMPLETED

Clinical Phase

NA

Total Enrollment

50 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-03-01

Study Completion Date

2025-07-31

Brief Summary

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This pilot double-blind, randomized controlled trial with two parallel arms, was performed to evaluate the change in serum ferritin concentration following consumption of lactoferrin enriched yogurt versus the non-enriched control yogurt in women with GDM.

Detailed Description

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Lactoferrin is recognized as both effective and safe during pregnancy. Nonetheless, studies specifically investigating its effects in women with GDM are limited.

The primary outcome of this pilot RCT was the change in serum ferritin concentration following the consumption of lactoferrin-enriched yogurt compared with non-enriched control yogurt. Secondary outcomes included changes between the two arms in hemoglobin concentration, hematocrit, red blood cell count, serum iron, transferrin levels, total iron-binding capacity, and transferrin saturation. Additional outcomes were the evaluation of variations in metabolic variables, the occurrence of adverse maternal and neonatal outcomes, and changes in the maternal gut microbiota before and after the intervention

The study began on March 1, 2023, and continued until May 31, 2025. All participants with diagnosis of GDM were recruited according to the inclusion criteria.

Participants received the same dietary counseling and nutritional recommendations aligned with current guidelines by trained registered dieticians. Women were randomized to receive the lactoferrin-enriched yogurt (experimental arm, n=25) and the non-enriched control yogurt (control arm, n=25). Both products were derived from high-quality cow's milk, had the same color, flavor, texture, and were contained in identical unlabeled white 125g plastic cups, each identified solely by a code. The experimental product was enriched with lactoferrin during the manufacturing process (100mg/125g).

Conditions

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Gestational Diabetes Mellitus (GDM)

Keywords

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Gestational Diabetes Mellitus Lactoferrin Iron status in pregnancy

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

TRIPLE

Participants Caregivers Investigators

Study Groups

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Lactoferrin enriched-yogurt

In this arm participants were randomized to receved a lactoferrin-enriched yogurt (100mg/125g) twice a day for two months.

Group Type EXPERIMENTAL

Lactoferrin-enriched yogurt supplementation

Intervention Type DIETARY_SUPPLEMENT

Women were randomized to receive the lactoferrin-enriched yogurt (experimental arm, n=25) - (100mg/125g) 2 times a day for 2 months.Yogurt derived from high-quality cow's milk, with the same color, flavor, and texture as the control group yogurt not enriched with lactoferrin.

All women of the group received nutritional guidance in accordance with dietary guidelines that accounted for the macronutrient contribution provided by 250g/day of yogurt. The products were provided in unlabeled white plastic cups, distinguishable only by a unique code.

Non-enriched yogurt

In this arm participants were randomized to received a non-enriched yogurt(125g) twice a day for two months.

Group Type OTHER

Non-enriched yogurt

Intervention Type DIETARY_SUPPLEMENT

Participants were randomized to receved a non-enriched yogurt (125g)- (control arm) twice a day for 2 months. The yogurt was produced from high-quality semi-skimmed cow's milk and It was identical in color, taste, texture, and packaging to the experimental yogurt which conteins lactoferrin. The products were provided in unlabeled white plastic cups, distinguishable only by a unique code.

Interventions

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Lactoferrin-enriched yogurt supplementation

Women were randomized to receive the lactoferrin-enriched yogurt (experimental arm, n=25) - (100mg/125g) 2 times a day for 2 months.Yogurt derived from high-quality cow's milk, with the same color, flavor, and texture as the control group yogurt not enriched with lactoferrin.

All women of the group received nutritional guidance in accordance with dietary guidelines that accounted for the macronutrient contribution provided by 250g/day of yogurt. The products were provided in unlabeled white plastic cups, distinguishable only by a unique code.

Intervention Type DIETARY_SUPPLEMENT

Non-enriched yogurt

Participants were randomized to receved a non-enriched yogurt (125g)- (control arm) twice a day for 2 months. The yogurt was produced from high-quality semi-skimmed cow's milk and It was identical in color, taste, texture, and packaging to the experimental yogurt which conteins lactoferrin. The products were provided in unlabeled white plastic cups, distinguishable only by a unique code.

Intervention Type DIETARY_SUPPLEMENT

Eligibility Criteria

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Inclusion Criteria

* Diagnosis of GDM confirmed by 75g glucose oral glucose tolerance test (OGTT).
* Caucasian ethnicity, gestational age between 24 and 30 weeks.
* Age \>18 and \<50 years.
* Body Mass Index (BMI) between 22.5 and 35 kg/m².
* Ability to provide informed consent to participate in the study.

Exclusion Criteria

* Type 1 diabetes mellitus.
* Allergies to milk proteins or lactose intolerance.
* Known anemia.
* Twin pregnancy.
* Pre-existing iron supplementation exceeding 30 mg/day.
* Insulin therapy at the time of enrollment.
* Any condition or disease requiring specific dietary treatments.
* Concurrent physical or mental conditions requiring pharmacological therapy
* Autoimmune disorders.
Minimum Eligible Age

18 Years

Maximum Eligible Age

50 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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University of Turin, Italy

OTHER

Sponsor Role lead

Responsible Party

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Simona Bo

Associate Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Simona Bo, Associate Professor, MD

Role: PRINCIPAL_INVESTIGATOR

University of Turin, Italy

Locations

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AOU Città della Salute e della Scienza di Torino, University of Torino, Torino.

Torino, Torino, Italy

Site Status

Countries

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Italy

Provided Documents

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Document Type: Informed Consent Form

View Document

Other Identifiers

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LACTO_2025

Identifier Type: -

Identifier Source: org_study_id