Efficacy and Safety of a Topical Botanical Extract Formulation for Skin Barrier Repair
A Single-Center, Double-Blinded, Randomized, Placebo-Controlled, Prospective Study to Evaluate the Efficacy and Safety of a Botanical Extract in Skincare Formulations for Skin Barrier Repair on Healthy Volunteers
This is a single-center, double-blinded, placebo-controlled, prospective clinical study designed to evaluate the skin barrier repair efficacy and local tolerance of topical cosmetic formulations containing a botanical extract. Skin barrier challenge is induced via standardized tape stripping on the volar forearm of healthy subjects. The study will evaluate and compare the repair kinetics of two concentrations of the active formulation, a vehicle, and an untreated control zone over a 14-day application period.
Studieoversikt
Status
Status
Forhold
Forhold
Intervensjon / Behandling
Intervensjon / Behandling
Detaljert beskrivelse
Healthy female subjects will undergo a standardized skin barrier challenge (tape-stripping) on designated zones of their volar forearms at baseline. Formulations containing different concentrations of a botanical extract (Active Formulation A and Active Formulation B), a vehicle control, and an untreated control will be assigned to the randomized zones. Products will be applied topically twice daily for 14 days. Skin barrier repair efficacy will be assessed using clinical gradings and instrumental measurements, including Trans-Epidermal Water Loss (TEWL) and skin hydration. Local tolerance will be evaluated via clinical grading. Non-invasive skin surface biomaterial collection may be performed at designated time points for skin proteomics and lipidomics analysis.
Studietype
Studietype
Registrering (Faktiske)
Registrering
Fase
Fase
- Ikke aktuelt
Kontakter og plasseringer
Studiesteder
-
-
-
Shanghai, Kina
- L'OREAL
-
-
Deltakelseskriterier
Kvalifikasjonskriterier
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
Tar imot friske frivillige
Kjønn som er kvalifisert for studier
Beskrivelse
Inclusion Criteria:
- Chinese women aged 35 to 60 years in good general health.
- Self-reported dry skin type.
- a hydration index < 35 and a trans-epidermal water loss (TEWL) ≥ 6g.m-2.h-1 on both anterior sides of the forearms at screening.
- Willingness to avoid excessive sun exposure and comply with all study procedures including tape stripping and biosampling.
- Bilateral forearms clear of scars, wounds, or significant pigment spots.
Exclusion Criteria:
- Current pregnancy, breastfeeding, or planning to become pregnant.
- Current smokers or history of smoking within the last 6 months (including e-cigarettes/nicotine products).
- History of facial cosmetic procedures (fillers, lasers, implants, Botox, etc.).
- Active systemic or localized skin diseases (acne, eczema, psoriasis, atopic dermatitis).
- Allergies to cosmetics, personal care products, or their ingredients.
- Excessive UV exposure or frequent sauna/water sports usage.
- Use of antihistamines, antibiotics, corticosteroids, or NSAIDs within the relevant washout periods.
- Participation in any other clinical trial within the past 30 days.
Studieplan
Hvordan er studiet utformet?
Designdetaljer
- Primært formål: Behandling
- Tildeling: Randomisert
- Intervensjonsmodell: Parallell tildeling
- Masking: Firemannsrom
Antall våpen
Våpen og intervensjoner
Deltakergruppe / ArmDeltakergruppe / Arm |
Intervensjon / BehandlingIntervensjon / Behandling |
|---|---|
|
Eksperimentell: Active Formulation A
Zones applying 0.24% active formulation |
Topical skincare formulation containing Botanical Extract (Concentration A). Applied twice daily for 14 days. |
|
Eksperimentell: Active Formulation B
Zones applying 0.05% active formulation |
Topical skincare formulation containing Botanical Extract (Concentration B). Applied twice daily for 14 days. |
|
Placebo komparator: Vehicle Control
Zones applying the formulation base without active extract |
Topical formulation base (identical to investigational products but without the active botanical extract). Applied twice daily for 14 days. |
|
Ingen inngripen: Untreated Zone
Control Zone on the forearm with no product application: Tape stripped zone left untreated to monitor natural physiological repairing kinetics |
Hva måler studien?
Primære resultatmål
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
Clinical Scoring (Erythema, Dryness, Desquamation, Roughness, Edema, PIH)
Tidsramme: Baseline, Tafter (immediately after tape stripping), T3h (3 hours after 1st product application), Day 1, Day 3, Day 7, and Day 14
|
Dermatological grading of erythema, dryness, roughness, edema, desquamation and post-inflammatory hyperpigmentation using standard clinical scales |
Baseline, Tafter (immediately after tape stripping), T3h (3 hours after 1st product application), Day 1, Day 3, Day 7, and Day 14
|
|
Hydration
Tidsramme: Baseline, Tafter (right after tape stripping), Timm (immediately after 1st product application), T1h(1 hour after 1st product application), T3h(3 hours after 1st product application), Day 1, Day 3, Day 7, and Day 14
|
Hydration index measured using Corneometer |
Baseline, Tafter (right after tape stripping), Timm (immediately after 1st product application), T1h(1 hour after 1st product application), T3h(3 hours after 1st product application), Day 1, Day 3, Day 7, and Day 14
|
|
TEWL
Tidsramme: Baseline, post-stripping (Tafter), immediately post-first application (Timm), 1 hour post-first application (T1h), 3 hours post-first application (T3h), Day 1, Day 3, Day 7, and Day 14.
|
Trans-epidermal water loss using Vapometer |
Baseline, post-stripping (Tafter), immediately post-first application (Timm), 1 hour post-first application (T1h), 3 hours post-first application (T3h), Day 1, Day 3, Day 7, and Day 14.
|
Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
Skin Structural Changes
Tidsramme: Baseline, Day 3, Day 7, and Day 14
|
Non-invasive evaluation of epidermis and dermis thickness/density using high-frequency ultrasound |
Baseline, Day 3, Day 7, and Day 14
|
|
Epidermal Proteomic and Lipidomic Profile
Tidsramme: Baseline, Day 7
|
Characterization of stratum corneum biomarkers obtained via non-invasive tape-stripping samplings. |
Baseline, Day 7
|
Samarbeidspartnere og etterforskere
Sponsor
Sponsor
Studierekorddatoer
Studer hoveddatoer
Studiestart (Faktiske)
Studiestart
Primær fullføring (Faktiske)
Primær fullføring
Studiet fullført (Faktiske)
Studiet fullført
Datoer for studieregistrering
Først innsendt
Først innsendt
Først innsendt som oppfylte QC-kriteriene
Først innsendt som oppfylte QC-kriteriene
Først lagt ut (Faktiske)
Først lagt ut
Oppdateringer av studieposter
Sist oppdatering lagt ut (Faktiske)
Sist oppdatering lagt ut
Siste oppdatering sendt inn som oppfylte QC-kriteriene
Siste oppdatering sendt inn som oppfylte QC-kriteriene
Sist bekreftet
Sist bekreftet
Mer informasjon
Begreper knyttet til denne studien
Andre studie-ID-numre
Andre studie-ID-numre
- ACR_EV_25-11289
Plan for individuelle deltakerdata (IPD)
Planlegger du å dele individuelle deltakerdata (IPD)?
Legemiddel- og utstyrsinformasjon, studiedokumenter
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