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A Clinical Study to Evaluate the Efficacy in Improving Dark Spots After 8 Weeks of Use of Facial Sunscreens in Adult Participants (El Porto Ex-US)

25 de junio de 2026 actualizado por: Kenvue Brands LLC

A Monocentric and Open-Label Clinical Study to Evaluate the Efficacy in Improving Dark Spots After 8 Weeks of Use of Facial Sunscreens in Adult Research Participants

The study aims to evaluate the efficacy of a facial sunscreen under two experimental conditions-untinted and tinted-in improving facial spots (melasma and solar lentigines/post-inflammatory hyperpigmentation) after 8 weeks of product use under normal conditions by adult participants.

Descripción general del estudio

Estado

Reclutamiento

Condiciones

Intervención / Tratamiento

Tipo de estudio

Intervencionista

Inscripción (Estimado)

152

Fase

  • No aplica

Contactos y Ubicaciones

Esta sección proporciona los datos de contacto de quienes realizan el estudio e información sobre dónde se lleva a cabo este estudio.

Estudio Contacto

Ubicaciones de estudio

    • São Paulo
      • Campinas, São Paulo, Brasil, 13084-791
        • Reclutamiento
        • ALS Beauty & Personal Care Ltda
        • Contacto:

Criterios de participación

Los investigadores buscan personas que se ajusten a una determinada descripción, denominada criterio de elegibilidad. Algunos ejemplos de estos criterios son el estado de salud general de una persona o tratamientos previos.

Criterio de elegibilidad

Edades elegibles para estudiar

  • Adulto
  • Adulto Mayor

Acepta Voluntarios Saludables

Sí

Descripción

Inclusion Criteria:

  1. Able to understand and follow study instructions
  2. Fitzpatrick skin types I-VI
  3. Presence of facial hyperpigmentation, such as:

    • Mild to moderate melasma, or
    • Visible dark spots (e.g., solar lentigines or post-inflammatory hyperpigmentation)
  4. Willing to comply with study procedures and product use
  5. For subjects in applicable groups: willing to use assigned sunscreen product

Exclusion Criteria:

  1. Known sensitivity or allergy to cosmetic or skincare products
  2. Skin conditions or lesions in the study area that could interfere with evaluation (e.g., active dermatitis, infections, significant irritation, or extensive scarring)
  3. Use of medications or products that may interfere with study evaluations
  4. Recent cosmetic or dermatological procedures in the study area (e.g., chemical peels, laser treatments, invasive procedures)
  5. Excessive sun exposure or use of tanning beds immediately prior to or during the study
  6. Pregnancy or intention to become pregnant during the study
  7. Participation in another clinical study within a recent period
  8. Any condition or situation that, in the investigator's judgment, may interfere with study participation or evaluation of results

Plan de estudios

Esta sección proporciona detalles del plan de estudio, incluido cómo está diseñado el estudio y qué mide el estudio.

¿Cómo está diseñado el estudio?

Detalles de diseño

  • Propósito principal: Tratamiento
  • Asignación: No aleatorizado
  • Modelo Intervencionista: Asignación paralela
  • Enmascaramiento: Ninguno (etiqueta abierta)

Armas e Intervenciones

Grupo de participantes/brazo
Intervención / Tratamiento
Experimental: Group I: Melasma/Untinted
Participants will apply the facial sunscreen on the face at least twice daily for 56 days
Experimental: Group I: Melasma/Tinted
Participants will apply the facial sunscreen on the face at least twice daily for 56 days
Experimental: Group II: Solar Lentigo and Post-Inflammatory Hyperpigmentation / Untinted
Participants will apply the facial sunscreen on the face at least twice daily for 56 days
Experimental: Group II: Solar Lentigo and Post-Inflammatory Hyperpigmentation / Tinted
Participants will apply the facial sunscreen on the face at least twice daily for 56 days

¿Qué mide el estudio?

Medidas de resultado primarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Clinical efficacy of change in hyperpigmentation assessed via dermatological evaluation
Periodo de tiempo: Before and after Visit 2 (14+2 days), Visit 3 (28+2 days), and Visit 4 (56+2 days) of IP use
Before and after Visit 2 (14+2 days), Visit 3 (28+2 days), and Visit 4 (56+2 days) of IP use
Instrumental measurements with the Chroma Meter CR 400 (Konica Minolta)
Periodo de tiempo: Before and after Visit 2 (14+2 days), Visit 3 (28+2 days), and Visit 4 (56+2 days) of IP use
Measurements will be taken using the Chroma Meter® CR 400 to evaluate the color intensity of the dark spot (Melasma, Solar Lentigo, or Post-Inflammatory Hyperpigmentation) in comparison to the measurement of an adjacent area (without a spot).
Before and after Visit 2 (14+2 days), Visit 3 (28+2 days), and Visit 4 (56+2 days) of IP use
Capture of facial images using the Visia-CR® Facial Imaging Booth (Canfield Scientific, Inc.)
Periodo de tiempo: Before, immediately after the first application, and after Visit 2 (14+2 days), Visit 3 (28+2 days), and Visit 4 (56+2 days) of IP use
Facial images will be captured using the Visia CR® Facial Imaging Booth (Canfield Scientific, Inc.) for analysis of the intensity and size of the spot (Melasma, Solar Spot, or Post-Inflammatory Hyperpigmentation), as well as the overall uniformity of skin tone.
Before, immediately after the first application, and after Visit 2 (14+2 days), Visit 3 (28+2 days), and Visit 4 (56+2 days) of IP use
Participants' quality of life regarding facial spots for participants with Melasma assessed through a Quality of Life Questionnaire (MELASQoL)
Periodo de tiempo: Before and after Visit 2 (14+2 days), Visit 3 (28+2 days), and Visit 4 (56+2 days) of IP use

Melasma Quality of Life Scale (MELASQoL) will only be answered by participants enrolled in Melasma group.

The participant will answer a questionnaire with 10 questions regarding the condition of their skin, using a rating scale from 1 to 7, in which: 1 means "not at all bothered" and 7 means "bothered all the time". A total score will be generated by summing the scores of the 10 questions answered by the participant. The total score ranges from 10 to 70. The lower the score, the better the participant's quality of life.

Before and after Visit 2 (14+2 days), Visit 3 (28+2 days), and Visit 4 (56+2 days) of IP use
Participants' quality of life regarding facial spots for participants with Solar Lentigo or Post-Inflammatory Hyperpigmentation assessed through a Quality of Life Questionnaire (DLQI)
Periodo de tiempo: Before and after Visit 2 (14+2 days), Visit 3 (28+2 days), and Visit 4 (56+2 days) of IP use
Dermatology Life Quality Index (DLQI) will only be answered by participants selected for the Solar Lentigo/PIH Group. The participant will answer a questionnaire with 10 questions regarding the impact of their skin on their quality of life. Each question is scored on a four-point Likert scale: very much = 3 points, much = 2 points, a little = 1 point and nothing/not relevant = 0 points. Questions answered as nothing and not relevant are equivalent to 0 points. The total score ranges from 0 to 30. The lower the score, the better the participant's quality of life.
Before and after Visit 2 (14+2 days), Visit 3 (28+2 days), and Visit 4 (56+2 days) of IP use
Perceived efficacy assessed through perception questionnaires completed by the research participants
Periodo de tiempo: After Visit 2 (14+2 days), Visit 3 (28+2 days), and Visit 4 (56+2 days) of IP use
Participants will answer a questionnaire evaluating their individual opinion about the Investigational Product used. Questionnaire consists of 9 questions which should be answered in a 5-point scale of agreement (such as ranging from "Strongly Disagree" to "Strongly Agree").
After Visit 2 (14+2 days), Visit 3 (28+2 days), and Visit 4 (56+2 days) of IP use
Open emotional testimonial written by the participant at the end of IP use
Periodo de tiempo: After Visit 4 (56+2 days) of IP use
Consists of an open-ended, narrative question in which the participant provides a brief statement regarding their experience with the use of their respective Investigational Product.
After Visit 4 (56+2 days) of IP use

Colaboradores e Investigadores

Aquí es donde encontrará personas y organizaciones involucradas en este estudio.

Patrocinador

Fechas de registro del estudio

Estas fechas rastrean el progreso del registro del estudio y los envíos de resultados resumidos a ClinicalTrials.gov. Los registros del estudio y los resultados informados son revisados ​​por la Biblioteca Nacional de Medicina (NLM) para asegurarse de que cumplan con los estándares de control de calidad específicos antes de publicarlos en el sitio web público.

Fechas importantes del estudio

Inicio del estudio (Actual)

2 de junio de 2026

Finalización primaria (Estimado)

25 de septiembre de 2026

Finalización del estudio (Estimado)

25 de septiembre de 2026

Fechas de registro del estudio

Enviado por primera vez

1 de junio de 2026

Primero enviado que cumplió con los criterios de control de calidad

25 de junio de 2026

Publicado por primera vez (Actual)

1 de julio de 2026

Actualizaciones de registros de estudio

Última actualización publicada (Actual)

1 de julio de 2026

Última actualización enviada que cumplió con los criterios de control de calidad

25 de junio de 2026

Última verificación

23 de junio de 2026

Más información

Términos relacionados con este estudio

Otros números de identificación del estudio

  • CS2026SK100350

Plan de datos de participantes individuales (IPD)

¿Planea compartir datos de participantes individuales (IPD)?

NO

Información sobre medicamentos y dispositivos, documentos del estudio

Estudia un producto farmacéutico regulado por la FDA de EE. UU.

No

Estudia un producto de dispositivo regulado por la FDA de EE. UU.

No

Esta información se obtuvo directamente del sitio web clinicaltrials.gov sin cambios. Si tiene alguna solicitud para cambiar, eliminar o actualizar los detalles de su estudio, comuníquese con register@clinicaltrials.gov. Tan pronto como se implemente un cambio en clinicaltrials.gov, también se actualizará automáticamente en nuestro sitio web. .