NCT07335003

Brief Summary

Participants will be invited to take part in a research study as they have been diagnosed with multiple actinic keratosis lesions (AK). AK usually present as small, rough, dry, scaly and/or crusty patches or papules of the skin that can be skin-coloured pink, red, tan or a combinationof colours and are often easier to feel than see at their earlier stages. AK are commonly diagnosed in adults, particularly in patients aged 45 years and older and are considered to be pre-cancerous lesions. The research is aiming to investigate the protective effect of an investigational sunscreen known as Anthelios Fluide 100 KA+ UVMune 400, when used together with good sun protection habits (which include staying in the shade during the hours of 11 am and 3 pm, wearing sun-protective clothing, wearing a wide-brimmed hat) in participants with multiple Actinic keratoses's. Eligible participants will be randomly assigned into 1 of 2 groups - an intervention or control group The study main objective is to evaluate tested sunscreen prevention on actinic keratosis lesions.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
80

participants targeted

Target at P50-P75 for not_applicable

Timeline
35mo left

Started Jul 2025

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
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 Progress23%
Jul 2025Mar 2029

Study Start

First participant enrolled

July 1, 2025

Completed
3 days until next milestone

First Submitted

Initial submission to the registry

July 4, 2025

Completed
6 months until next milestone

First Posted

Study publicly available on registry

January 12, 2026

Completed
3.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2029

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2029

Last Updated

January 12, 2026

Status Verified

January 1, 2026

Enrollment Period

3.7 years

First QC Date

July 4, 2025

Last Update Submit

January 6, 2026

Conditions

Keywords

PreventionPhotoprotectionactinic keratosisdiagnosis

Outcome Measures

Primary Outcomes (1)

  • The full body number of Actinic Keratosis lesions

    Actinic Keratosis clinical evaluation (total number of lesions and severity and location will be recorded)

    at baseline, 3, 6 and 9 months post commencement of intervention

Secondary Outcomes (10)

  • Variation of the photoprotection index (SEPI) - questionnaire

    at baseline, 3, 6 and 9 months post commencement of intervention

  • Variation of layers' thickness on Actinic Keratosis lesions

    at baseline, 3, 6 and 9 months post-commencement of intervention

  • Variation of biomarkers of disease severity (p53)

    at baseline and 6 months post-commencement of intervention

  • Questionnaire (self-assessment)

    6 months post-commencement of intervention

  • Adverse Events reporting

    at 1, 2, 3, 6 and 9 months post-commencement of intervention

  • +5 more secondary outcomes

Study Arms (2)

Sunscreen investigational product

ACTIVE COMPARATOR

Participants (40) will be asked to follow usual recommendations for AK patients as per sun protection information guidelines document provided by Melanoma Institute Australia and will use the sunscreen investigational product at least once every morning and to reapply as often as necessary during the day in case of sun exposure.

Other: Tested product group

Control Group

PLACEBO COMPARATOR

Participants (40) will be asked to follow usual recommendations for AK patients as per sun protection information guidelines document provided by Melanoma Institute Australia and may use their normal sun cream

Other: Control group

Interventions

The investigational sunscreen will be applied at least once every morning. Product will be re-applied every 2 hours in case of prolonged exposure or when the likelihood of sunscreen having been removed is high, such as after sweating, water immersion, friction from clothing and exfoliation from sand. The investigational product should be applied on all exposed areas. Scalp, face (avoiding eye contours), neck, forearms, back of the hands, and décolleté will be treated every day . The recommended application dose is 2 mg/cm².

Sunscreen investigational product

Participants will be allowed to use the preferred sunscreen (a broad spectrum sunscreen with an SPF of at least 50+) as per their usual routine (every 2 hours and after swimming or exercice).

Control Group

Eligibility Criteria

Age60 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Adult outpatients ≥ 60y old with at least 11 clinically typical actinic keratosis lesions, including at least one on the face;
  • Patient having understood and signed a written informed Consent Form to participate in the study indicating the potential participant's willingness to undergo the study procedures and complete the study.

You may not qualify if:

  • Atypical actinic keratosis lesions including suspected squamous cell carcinoma and basal cell carcinoma (could be present at screening and treated but cannot be present at 1st visit);
  • History of \>2 squamous cell carcinomas;
  • Known history of immunodepression whatever its cause in the past year;
  • Participants who cannot undergo skin biopsies, with a history of scarring problems or who have developed adverse effects from the use of local anesthesia will also be excluded.
  • Participant using interferon or interferon inducers, immunomodulators, cytotoxic or immunosuppressive drugs, corticosteroids, retinoids, other keratolytics or have received investigational drug within 4 weeks before enrolment
  • Participant having active, localized or systemic infection other than the AK lesions
  • Participant having any dermatological affection within the treated and adjacent area according to the Investigator judgement
  • Participant having a present or past skin condition that according to Investigator judgment, deems inappropriate for study participation
  • Participant having other significant medical conditions that according to Investigator Judgment, deems inappropriate for study participation
  • Participant having a known hypersensitivity, allergy or contraindication to any ingredients contained within the cosmetic products,
  • Participant taking part or intending to take part in another study for 30 days prior to D1 visit, and 30 days following last study visit. that according to Investigator judgment, deems inappropriate or may interfere for study participation
  • Participant using light-based devices such as but not limited to PUVA (Psoralen Ultraviolet A therapy), IPL (Intense Pulsed Light), laser, LED (Light Emitting Diode) devices or tanning beds, within 4 weeks before enrolment.
  • Participant having applied any topical product on the investigational areas the day of enrolment visit,
  • Participant under legal guardianship or incapacitation.
  • Participant being psychologically incapable of signing informed Consent Form and unable to comply with the protocol requirements according to investigator judgment.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Sydney Melanoma Diagnostic Centre, Royal Prince Alfred Hospital

Camperdown, New South Wales, 2050, Australia

RECRUITING

MeSH Terms

Conditions

Keratosis, ActinicDisease

Interventions

Control Groups

Condition Hierarchy (Ancestors)

Precancerous ConditionsNeoplasmsKeratosisSkin DiseasesSkin and Connective Tissue DiseasesPathologic ProcessesPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

Epidemiologic Research DesignEpidemiologic MethodsInvestigative TechniquesResearch DesignMethods

Central Study Contacts

Pascale GUITERA, MD, Derm

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 4, 2025

First Posted

January 12, 2026

Study Start

July 1, 2025

Primary Completion (Estimated)

March 1, 2029

Study Completion (Estimated)

March 1, 2029

Last Updated

January 12, 2026

Record last verified: 2026-01

Locations