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The Effectiveness of the Self-Assembling Peptide P11-4 in the Remineralization of Enamel Carious White Spot Lesions (WSL-Curodont)

16 juni 2026 uppdaterad av: Dorota Olczak-Kowalczyk, Medical University of Warsaw

A Three-arm Randomized Controlled Trial Evaluating the Effectiveness of Self- Assembling Peptide P11-4 in the Remineralization of Enamel Carious White Spot Lesions

This is three-arm Randomized Controlled Trial. The main goal is to evaluate the effectiveness of self-assembling peptide P11-4 (SAP P11-4) in the remineralization of enamel carious white spot lesions. Participants with carious white spot lesions will be assigned to one of three study groups and remineralisation agents will be applied according to the study protocol. The primary objective is to assess changes in the carious white spot lesions over time using quantitative light-induced fluorescence and clinical evaluation.

Studieöversikt

Detaljerad beskrivning

This study will be conducted at an academic center. Recruitment will include patients aged 10 to 18 years presenting with carious white spot lesions on the smooth surfaces of permanent teeth at the Department of Pediatric Dentistry, Medical University of Warsaw. The planned study duration is 1 year. After assessment of the inclusion and exclusion criteria and enrollment into the study, participants will undergo randomization and will be allocated to 1 of 3 study groups.

Group A will receive a single application of Curodont Repair (self-assembling peptide P11-4) at the first visit, together with fluoride varnish application every 3 months (Duraphat Fluoride Varnish, Colgate, 22,600 ppm fluoride). Group B will receive repeated applications of Curodont Repair at the first visit, after 3 months, together with fluoride varnish application every 3 months. Group C, the control group, will receive only fluoride varnish every 3 months.

There is currently limited evidence regarding the effectiveness of repeated applications of remineralization agents containing self-assembling peptide P11-4. In addition, this study includes a relatively long follow-up period, allowing evaluation of the durability of the treatment effect over time.

At each follow-up visit, scheduled every 3 months, white spot lesions will be assessed using quantitative light-induced fluorescence (QLF) and visual clinical examination.

Studietyp

Interventionell

Inskrivning (Beräknad)

75

Fas

  • Inte tillämpbar

Kontakter och platser

Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.

Studiekontakt

Studieorter

    • Masovian Voivodeship
      • Warsaw, Masovian Voivodeship, Polen, 02-097
        • Rekrytering
        • University Clinical Center of the Medical University of Warsaw, Department of Pediatric Dentistry
        • Kontakt:
          • Secretariat of the Department of Pediatric Dentistry
          • Telefonnummer: +48 22 116 64 24
          • E-post: pedodoncja@wum.edu.pl
        • Huvudutredare:
          • Dorota Olczak-Kowalczyk, Prof.
        • Underutredare:
          • Anna Turska-Szybka, Assoc. Prof.
        • Underutredare:
          • Julia Sazonowa, Dr.

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

  • Barn
  • Vuxen

Tar emot friska volontärer

Nej

Beskrivning

Inclusion Criteria:

  1. Age >10 years and <18 years.
  2. Presence of at least 2 active enamel carious white spot lesions on a smooth tooth surface (labial/buccal surfaces of permanent teeth) based on International Caries Detection (ICDAS II) and Assessment System -Lesion Activity Assessment (ICDAS-LAA), and Lesion Activity Assessment (LAA criteria).
  3. Tooth eligible for treatment:

    1. Vital pulp,
    2. no loss of hard dental tissues within the investigated lesion (ICDAS II) code 1 or 2 , LAA code 1, ICDAS-LAA>7;
    3. QLF score parameters consistent with demineralization without loss of tissue continuity- code 1 or 2),
    4. no history of trauma to the tooth.
  4. Systemically healthy patient.
  5. No contraindications to the use of fluoride preparations.
  6. No fixed orthodontic appliance.
  7. Written consent for participation in the study signed by the legal guardian, or by the legal guardian and the patient.

Exclusion Criteria:

  1. Systemic diseases or chronic medication use due to chronic conditions.
  2. Viral/bacterial illness on the day of the visit, e.g., herpetic stomatitis, influenza, tonsillitis (temporary restriction).
  3. Pregnancy or breastfeeding.
  4. Allergy to any component of the SAP P11-4 preparation or the fluoride varnish.
  5. Professional fluoride prophylaxis performed <3 months ago.
  6. Presence of cavitation (loss of hard tissues) in the treated tooth - ICDAS II code ≥3, ICDAS-LAA<7, LAA code 0, 2-9.
  7. Carious WSL previously treated with the Icon resin infiltrant (methacrylate resin).
  8. Developmental enamel defects.
  9. Patient undergoing orthodontic treatment with fixed appliances.
  10. Inability to ensure regular follow-up visits.
  11. Lack of cooperation from the guardian or the patient.
  12. Refusal to participate in the study and/or absence of written consent.

Studieplan

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

  • Primärt syfte: Behandling
  • Tilldelning: Randomiserad
  • Interventionsmodell: Parallellt uppdrag
  • Maskning: Enda

Vapen och interventioner

Deltagargrupp / Arm
Intervention / Behandling
Experimentell: Single Application of Curodont Repair Plus Fluoride Varnish
Participants will receive a single application of Curodont Repair (self-assembling peptide P11-4) at the first visit (baseline) and fluoride varnish application every 3 months (including baseline visit)
Self-assembling peptide P11-4 will be applied on enamel carious white spot lesions according to the study protocol. In the single-application group (group A), the agent will be applied once at the first visit(baseline). In the repeated-application group (group B), the agent will be applied at the first visit (baseline) and after 3 months.
Fluoride varnish will be applied every 3 months according to the study protocol.
Experimentell: Repeated Application of Curodont Repair Plus Fluoride Varnish
Participants will receive applications of Curodont Repair (self-assembling peptide P11-4) at the first visit (baseline), after 3 months, together with fluoride varnish application every 3 months (including baseline visit).
Self-assembling peptide P11-4 will be applied on enamel carious white spot lesions according to the study protocol. In the single-application group (group A), the agent will be applied once at the first visit(baseline). In the repeated-application group (group B), the agent will be applied at the first visit (baseline) and after 3 months.
Fluoride varnish will be applied every 3 months according to the study protocol.
Aktiv komparator: Fluoride Varnish Only
Participants will receive fluoride varnish application every 3 months only.
Fluoride varnish will be applied every 3 months according to the study protocol.

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Change in Fluorescence Loss (ΔF) of White Spot Lesions From Baseline to 12 Months Assessed by Quantitative Light-Induced Fluorescence
Tidsram: baseline and 12 months follow-up
The primary outcome measure is the change in fluorescence loss of white spot lesions from baseline to the 12-month follow-up, assessed using quantitative light-induced fluorescence (QLF). Fluorescence loss will be measured using the QLF parameter ΔF and expressed as percentage fluorescence loss (%). More negative ΔF values indicate greater mineral loss. The change will be calculated as the ΔF value at 12 months minus the ΔF value at baseline. A positive change in ΔF from baseline, indicating an increase in ΔF toward zero, will indicate lesion remineralization. A negative change in ΔF from baseline will indicate lesion demineralization.
baseline and 12 months follow-up
Change in lesion volume ΔQ of White Spot Lesions From Baseline to 12 Months Assessed by Quantitative Light-Induced Fluorescence
Tidsram: from baseline to the 12-month follow-up
The primary outcome measure is the change in QLF lesion volume (ΔQ) from baseline to the 12-month follow-up. ΔQ will be assessed using quantitative light-induced fluorescence (QLF) and expressed as % × mm². The change will be calculated as the ΔQ value at 12 months minus the ΔQ value at baseline. More negative ΔQ values indicate larger or more severe lesions. Therefore, a positive change in ΔQ from baseline indicates lesion improvement, whereas a negative change in ΔQ from baseline indicates lesion progression.
from baseline to the 12-month follow-up

Sekundära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Change in QLF Fluorescence Loss (ΔF) of White Spot Lesions From Baseline to Each Follow-up Visit
Tidsram: Baseline, 3 months, 6 months, 9 months, and 12 months
Fluorescence loss will be assessed using the QLF parameter ΔF and expressed as percentage fluorescence loss (%). More negative ΔF values indicate greater mineral loss. The change will be calculated as the ΔF value at each follow-up visit minus the ΔF value at baseline. A positive change in ΔF from baseline, indicating an increase in ΔF toward zero, will indicate lesion remineralization. A negative change in ΔF from baseline will indicate lesion demineralization.
Baseline, 3 months, 6 months, 9 months, and 12 months
Change in Lesion Area of White Spot Lesions From Baseline to Each Follow-up Visit
Tidsram: Baseline, 3 months, 6 months, 9 months, and 12 months
Lesion area will be assessed using quantitative light-induced fluorescence (QLF) and expressed in square millimeters (mm²). The change will be calculated as the lesion area at each follow-up visit minus the lesion area at baseline. A decrease in lesion area from baseline indicates lesion improvement, whereas an increase in lesion area from baseline indicates lesion progression.
Baseline, 3 months, 6 months, 9 months, and 12 months
Change in QLF Lesion Volume (ΔQ) of White Spot Lesions From Baseline to Each Follow-up Visit
Tidsram: Baseline, 3 months, 6 months, 9 months, and 12 months
Lesion volume will be assessed using the QLF parameter ΔQ and expressed as % × mm². More negative ΔQ values indicate larger or more severe lesions. An increase in ΔQ toward zero, or a positive change in ΔQ from baseline, will indicate lesion improvement. A decrease in ΔQ, or a negative change in ΔQ from baseline, will indicate lesion progression.
Baseline, 3 months, 6 months, 9 months, and 12 months
Mean ICDAS II Score From Baseline to Each Follow-up Visit
Tidsram: Baseline, 3 months, 6 months, 9 months, and 12 months
Caries lesion severity will be assessed using the International Caries Detection and Assessment System II (ICDAS II). The ICDAS II score ranges from 0 to 6, where 0 indicates a sound tooth surface and 6 indicates an extensive distinct cavity with visible dentin. Higher scores indicate greater caries lesion severity.
Baseline, 3 months, 6 months, 9 months, and 12 months
Mean ICDAS-Lesion Activity Assessment Score From Baseline to Each Follow-up Visit
Tidsram: Baseline, 3 months, 6 months, 9 months, and 12 months
Lesion activity will be assessed using the ICDAS-Lesion Activity Assessment (ICDAS-LAA) criteria. The ICDAS-LAA score is calculated by summing points assigned for clinical parameters including visual appearance, gingival inflammation with plaque stagnation, and surface texture. The total score ranges from 4 to 11 points, with scores ≤7 indicating inactive caries and scores >7 indicating active caries. Higher scores indicate greater lesion activity.
Baseline, 3 months, 6 months, 9 months, and 12 months
Number of Lesions in Each Nyvad Lesion Activity Assessment Category From Baseline to Each Follow-up Visit
Tidsram: Baseline, 3 months, 6 months, 9 months, and 12 months
Lesion activity will be assessed using the Nyvad Lesion Activity Assessment (LAA) criteria. Each lesion will be classified into one of the following categories: 0 = sound surface, 1 = active caries with intact surface, 2 = active caries with surface discontinuity, 3 = active caries with cavity, 4 = inactive caries with intact surface, 5 = inactive caries with surface discontinuity, 6 = inactive caries with cavity, 7 = filling with sound surface, 8 = filling with active caries, and 9 = filling with inactive caries. Results will be reported as the number of lesions in each category. Higher category numbers do not necessarily indicate a better or worse outcome, as the categories represent lesion/restoration status and caries activity.
Baseline, 3 months, 6 months, 9 months, and 12 months
Mean Plaque Index Score From Baseline to Each Follow-up Visit
Tidsram: Baseline, 3 months, 6 months, 9 months, and 12 months
Dental plaque accumulation will be assessed using the Plaque Index (PLI). The PLI is scored from 0 to 3, where 0 indicates no plaque and 3 indicates abundant soft deposits. The mean PLI score will be calculated for each participant based on four surfaces per tooth. Higher scores indicate greater plaque accumulation.
Baseline, 3 months, 6 months, 9 months, and 12 months
Mean Gingival Index Score From Baseline to Each Follow-up Visit
Tidsram: Baseline, 3 months, 6 months, 9 months, and 12 months
Gingival inflammation will be assessed using the Gingival Index (GI). The GI is scored from 0 to 3, where 0 indicates normal gingiva and 3 indicates severe inflammation. The mean GI score will be calculated for each participant based on four surfaces per tooth. Higher scores indicate worse gingival inflammation. The results will be interpreted as follows: 0 = healthy gingiva, 0.1-1.0 = mild inflammation, 1.1-2.0 = moderate inflammation, and 2.1-3.0 = severe inflammation.
Baseline, 3 months, 6 months, 9 months, and 12 months
Percentage of Sites With Bleeding on Probing From Baseline to Each Follow-up Visit
Tidsram: Baseline, 3 months, 6 months, 9 months, and 12 months
Gingival status will be assessed using Bleeding on Probing (BOP). BOP will be expressed as the percentage of sites with bleeding on probing. Gingival status will be categorized as healthy/no gingivitis when BOP is <10%, localized gingivitis when BOP is 10-30%, and generalized gingivitis when BOP is >30%.The BOP percentage (BOP%) will be calculated as: BOP% = (Number of bleeding sites ÷ Total number of sites examined) × 100
Baseline, 3 months, 6 months, 9 months, and 12 months
Mean Visual Analogue Scale Score for Patient-reported Tolerability
Tidsram: Baseline, 3 months, 6 months, 9 months, and 12 months
Patient-reported tolerability will be assessed using the Visual Analogue Scale. The scale ranges from 0 to 10, with higher scores indicating worse tolerability.
Baseline, 3 months, 6 months, 9 months, and 12 months
Number of Adverse Events Throughout the Study Period
Tidsram: Baseline through 12 months
Occurrence of adverse events (AEs) recorded throughout the study period. Adverse events will be reported as the number of participants experiencing at least one adverse event.
Baseline through 12 months

Samarbetspartners och utredare

Det är här du hittar personer och organisationer som är involverade i denna studie.

Utredare

  • Huvudutredare: Dorota Olczak-Kowalczyk, Prof., Medical University of Warsaw

Publikationer och användbara länkar

Den som ansvarar för att lägga in information om studien tillhandahåller frivilligt dessa publikationer. Dessa kan handla om allt som har med studien att göra.

Allmänna publikationer

Användbara länkar

Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart (Faktisk)

2 februari 2026

Primärt slutförande (Beräknad)

31 oktober 2027

Avslutad studie (Beräknad)

14 december 2027

Studieregistreringsdatum

Först inskickad

10 juni 2026

Först inskickad som uppfyllde QC-kriterierna

16 juni 2026

Första postat (Faktisk)

23 juni 2026

Uppdateringar av studier

Senaste uppdatering publicerad (Faktisk)

23 juni 2026

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

16 juni 2026

Senast verifierad

1 juni 2026

Mer information

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Nej

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Nej

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