Effect of Partially Hydrolyzed Formula With Synbiotics on Skin Barrier Function (SPHINX)

December 11, 2025 updated by: Société des Produits Nestlé (SPN)

Synbiotics in Partially Hydrolysed Formula for Improved skiN Barrier Function in Infants at Risk for Allergy (SPHINX Study)

The main purpose of this study is to assess the efficacy of a partially hydrolyzed formula with synbiotics in halting one of the first steps of the allergic march (atopic dermatitis) in infants at risk of allergy. Other efficacy and safety parameters will be assessed as well.

Study Overview

Status

Recruiting

Study Type

Interventional

Enrollment (Estimated)

400

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

      • Bruges, Belgium
        • Recruiting
        • AZ Sint-Jan Brugge-Oostende AV - Campus Sint-Jan
        • Contact:
          • Luc Cornette, Dr
      • Brussels, Belgium
        • Recruiting
        • Universitair Ziekenhuis Brussel - Kinderziekenhuis
        • Contact:
          • Yvan Vandenplas, Pr
      • Namur, Belgium
        • Recruiting
        • Clinique Ste Elisabeth
        • Contact:
          • Sabine Jespers, Dr
      • Amiens, France
        • Recruiting
        • CHU Amiens Picardie
        • Contact:
          • André Léké, Dr
      • Caen, France
        • Recruiting
        • CHU de Caen
        • Contact:
          • Geraldine Favrais, Pr
      • Grenoble, France
        • Recruiting
        • CHU de Grenoble Alpes
        • Contact:
          • Blandine Rébeillé Borgella
      • Lyon, France
        • Recruiting
        • Hôpital de La Croix Rousse
        • Contact:
          • Jean-Charles Picaud, Pr
      • Rouen, France
        • Recruiting
        • Hopital Charles Nicolle
        • Contact:
          • Mireille Castanet, Dr
      • Tours, France
        • Recruiting
        • Chru De Tours
        • Contact:
          • Kristen Joseph-Delaffon, Dr
      • Berlin, Germany
        • Not yet recruiting
        • Charite-Universitaetsmedizin Berlin - Campus Virchow-Klinikum (CVK)
        • Contact:
          • Kirsten Beyer, Pr
      • Düsseldorf, Germany
        • Recruiting
        • Evangelisches Krankenhaus Düsseldorf - Frauenklinik
        • Contact:
          • Monika Gappa, Pr
      • Frankfurt, Germany
        • Recruiting
        • Klinik für Kinder- und Jugendmedizin, Universitätsklinikum Frankfurt
        • Contact:
          • Katharina Bluemchen, PD Dr
      • Spandau, Germany
        • Recruiting
        • Evangelisches Waldkrankenhaus Spandau
        • Contact:
          • Frank Jochum, PD Dr
      • Wesel, Germany
        • Not yet recruiting
        • Marien Hospital Wesel GmbH
        • Contact:
          • Cordula Koerner-Rettberg, Dr
      • A Coruña, Spain
        • Recruiting
        • Hospital Teresa Herrera
        • Contact:
          • Ana Moreno Álvarez, Dr
      • Almería, Spain
        • Recruiting
        • HU Torrecárdenas
        • Contact:
          • Rafael Galera Martínez, Dr
      • Barcelona, Spain
        • Recruiting
        • Hospital Quiron Salud Barcelona
        • Contact:
          • Hector Boix, Dr
      • Madrid, Spain
        • Recruiting
        • Hospital Universitario Severo Ochoa
        • Contact:
          • Maria Luz Garcia, Dr
      • Málaga, Spain
        • Recruiting
        • Grupo Pediatrico Uncibay
        • Contact:
          • Manuel Ramón Baca Cots, Dr
      • Seville, Spain
        • Recruiting
        • Instituto Hispalense de Pediatria (IHP)
        • Contact:
          • Ignacio Salamanca de la Cueva, Dr
      • Tarragona, Spain
        • Recruiting
        • Hospital Universitari Sant Joan de Reus
        • Contact:
          • Joaquín Escribano Subias, Dr
      • Tarragona, Spain
        • Recruiting
        • Hospital Universitari de Tarragona Joan XXIII
        • Contact:
          • Esther Parada Ricart, Dr
      • Zaragoza, Spain
        • Recruiting
        • HCU Lozano Blesa
        • Contact:
          • Gerardo Rodríguez Martínez, Dr

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  1. Written informed consent has been obtained from at least one parent or legally acceptable representative (LAR), if applicable
  2. Infant gestational age ≥ 37 completed weeks
  3. Infant birth weight of ≥ 2.5 kg and ≤ 4.5 kg
  4. Infant postnatal age ≤ 14 days (date of birth = day 0) at enrollment
  5. Infant from singleton birth or infant from multiple births may if all birth siblings are enrolled.
  6. At least one biological parent or sibling has (or had) a medically diagnosed history of allergy, based on response to a simple screening questionnaire
  7. a. For the breastfed reference group only: infant is exclusively breastfed since birth with no intake of formula, and their parent(s) have the intention to continue exclusive breastfeeding until at least 4 months of age.

    or b. For the randomized formula-fed groups only: infant is exclusively or predominantly formula-fed in the 24 hours prior to enrollment, with formula feeding representing at least 75% of total daily feeds. The decision to introduce formula feeding was independently made by the parents before enrollment.

  8. Parents/LAR must be able to provide evidence of parental authority and identity.
  9. Infant's parent(s)/LAR must understand the informed consent form and other study documents and are willing and able to fulfill the requirements of the study protocol.

Exclusion Criteria:

  1. Infectious, metabolic, congenital, genetic, gastrointestinal illness or any other condition (e.g., gastrointestinal surgery) that could impact oral feeding, growth or study outcomes.
  2. Infants with special dietary needs other than standard infant formula (e.g., extensively hydrolyzed formula, amino acid formula, special formula for metabolic diseases) or requiring tube feeding.
  3. Infant has already been diagnosed with allergy by a physician, including AD and/or cow's milk allergy.
  4. Infant is currently participating or has previously participated in another clinical trial prior to enrollment.
  5. Infant's parents or LARs have not reached legal age of majority (18 years).

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Other
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Test formula
Partially hydrolyzed formula with synbiotics
Partially hydrolyzed formula with synbiotics
Active Comparator: Control formula
Intact protein formula without synbiotics
Intact protein formula without synbiotics
No Intervention: Reference arm
Breastfed arm (not applicable for France)

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
TransEpidermal Water Loss (TEWL) at 3 months
Time Frame: At 3 months of age
TransEpidermal water loss will be measured using a validated non-invasive technique.
At 3 months of age

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Cumulative incidence of Atopic Dermatitis
Time Frame: From enrollment to 12 months of age
Cumulative incidence of AD is based on physician diagnosis using the United Kingdom Working Party (UKWP) diagnosis criteria.
From enrollment to 12 months of age
TransEpidermal Water Loss
Time Frame: From enrollment to 12 months of age
Epidermal water loss will be measured using a validated non-invasive technique.
From enrollment to 12 months of age
Skin surface (stratum corneum) hydration
Time Frame: From enrollment to 12 months of age
Skin hydration will be measured with a corneometer device.
From enrollment to 12 months of age
Extent and severity of Atopic Dermatitis
Time Frame: From 3 months to 12 months of age
SCORAD (SCORing for Atopic Dermatitis), scores range from 0 to 103, with higher scores indicating higher atopic dermatitis severity
From 3 months to 12 months of age
Cumulative use of topical steroids and calcineurin inhibitors
Time Frame: From enrollment to 12 months of age
Use of medication to treat AD and other symptoms will be collected via parent self-reported questionnaire.
From enrollment to 12 months of age
Skin cytokines
Time Frame: From enrollment to 12 months of age
Concentration of skin cytokines such as IL4 and IL5 using immunoassays
From enrollment to 12 months of age
Skin natural moisturizing factors
Time Frame: From enrollment to 12 months of age
Concentration of skin natural moisturizing factors such as Pyrrolidone carboxylic acid, using HPLC
From enrollment to 12 months of age
Skin stratum corneum lipids
Time Frame: From enrollment to 12 months of age
Concentration of skin stratum corneum lipids such as ceramides, cholesterol and triacylglycerol using mass spectrometry
From enrollment to 12 months of age
Skin microbiome
Time Frame: From enrollment to 12 months of age
Overall skin microbiome composition and diversity using next-generation sequencing
From enrollment to 12 months of age
Skin metabolites
Time Frame: From enrollment to 12 months of age
Levels of skin metabolites using targeted or untargeted approaches.
From enrollment to 12 months of age
Immune proteomics
Time Frame: From enrollment to 6 months of age
Levels of plasma proteins using mass cytometry or immunoassaysand immunoassays.
From enrollment to 6 months of age
Immune blood cell immunophenotyping
Time Frame: From enrollment to 6 months of age
Levels of immune cell populations using mass cytometry or immunoassays
From enrollment to 6 months of age
Specific IgE antibodies
Time Frame: At 12 months of age
Specific IgE antibodies will be measured using Phadiatop infant®.
At 12 months of age
Fecal microbiome
Time Frame: From enrollment to 12 months of age
Overall fecal microbiota composition, diversity, different bacteria taxa and microbiota community types assessed using next generation sequencing (NGS) technology
From enrollment to 12 months of age
Fecal metabolites
Time Frame: From enrollment to 12 months of age
Levels of fecal metabolites using targeted or untargeted approaches.
From enrollment to 12 months of age
Fecal biomarkers of inflammation and immunity
Time Frame: From enrollment to 12 months of age
Levels of fecal markers of immune health and inflammation such as total secretory IgA (sIgA), calprotectin, and α-1-antitrypsin assessed by ELISA.
From enrollment to 12 months of age
Physician-diagnosed allergic manifestations
Time Frame: From enrollment to 12 months of age
Number of participants with Physician-diagnosed allergic manifestations.
From enrollment to 12 months of age
Gastrointestinal tolerance
Time Frame: At enrollment and 4 months of age
Infant Gastrointestinal Symptom Questionnaire (IGSQ), scores range from 13 to 65, with higher scores indicating higher gastrointestinal discomfort.
At enrollment and 4 months of age
Weight
Time Frame: From enrollment to 12 months of age
Weight (g and z-scores)
From enrollment to 12 months of age
Height
Time Frame: From enrollment to 12 months of age
Length (cm and z-scores)
From enrollment to 12 months of age
Head circumference
Time Frame: From enrollment to 12 months of age
Head circumference (cm and z-scores)
From enrollment to 12 months of age
Safety assessment
Time Frame: From enrollment to 13 months of age
Incidence of adverse events
From enrollment to 13 months of age

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

April 10, 2025

Primary Completion (Estimated)

October 1, 2027

Study Completion (Estimated)

November 1, 2028

Study Registration Dates

First Submitted

March 17, 2025

First Submitted That Met QC Criteria

April 16, 2025

First Posted (Actual)

April 24, 2025

Study Record Updates

Last Update Posted (Actual)

December 12, 2025

Last Update Submitted That Met QC Criteria

December 11, 2025

Last Verified

December 1, 2025

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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