- ICH GCP
- Registro degli studi clinici negli Stati Uniti
- Sperimentazione clinica NCT07689344
Poly-L-lactic Acid (PLLA) Injection for Neck Skin Laxity: A Pilot Study
The Efficienctiveness of Poly-L-Lactic Acid, PLLA for the Treatment of Skin Laxity of the Neck: A Pilot Study
Panoramica dello studio
Stato
Condizioni
Intervento / Trattamento
Descrizione dettagliata
Tipo di studio
Iscrizione (Stimato)
Fase
- Non applicabile
Contatti e Sedi
Luoghi di studio
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Bangkok
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Ratchathewi, Bangkok, Tailandia, 10400
- Institute of Dermatology
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Contatto:
- Medical Sciences (Dermatology)
- Numero di telefono: +6623545222
- Email: dr_tanongkiet@yahoo.com
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Contatto:
- Tanongkiet Tienthavon
- Numero di telefono: +66952072833
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Criteri di partecipazione
Criteri di ammissibilità
Età idonea allo studio
- Adulto
Accetta volontari sani
Descrizione
Inclusion Criteria:
- Thai male or female participants aged 30-60 years
- Individuals who wish to improve neck skin laxity
- Presence of neck skin laxity grade 1-4 according to the Neck Skin Laxity Scale (NSL scale)
Exclusion Criteria:
- Pregnant or breastfeeding women
- History of allergy or hypersensitivity to local anesthetics or components of collagen-stimulating substances
- Active autoimmune disease requiring systemic treatment
- History of cosmetic procedures in the neck area, including laser treatment, radiofrequency, or ultrasound-based devices within 6 months prior to treatment
- History of dermal filler injection in the neck area
- History of botulinum toxin injection in the neck area within 6 months prior to treatment
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
- Scopo principale: Trattamento
- Assegnazione: N / A
- Modello interventistico: Assegnazione di gruppo singolo
- Mascheramento: Nessuno (etichetta aperta)
Armi e interventi
Gruppo di partecipanti / Arm |
Intervento / Trattamento |
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Sperimentale: PLLA Injection
Participants will receive a single treatment session of Poly-L-Lactic acid (PLLA) injection for the treatment of neck skin laxity.
PLLA will be administered to the neck using a cannula technique in the subcutaneous plane.
Approximately 16 mL of PLLA solution will be injected per participants.
Clinical outcomes will be evaluated at baseline and during follow-up visits at Weeks 8, 16, and 24.
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Poly-L-Lactic acid (PLLA) is used as a collagen-stimulating injectable for the treatment of neck skin laxity.
The PLLA solution is prepared by reconstituting PLLA with sterile water and lidocaine to a total volume of 16 mL.
Participants will receive a single treatment session of PLLA injection to the neck using a cannula technique.
The injection is performed in the subcutaneous plane using a linear retrograde fanning technique through lateral entry points of the neck.
Approximately 8 mL of PLLA solution will be injected on each side of the neck (total 16 mL per participant).
Clinical outcomes will be assessed at weeks 8, 16, and 24.
Altri nomi:
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Cosa sta misurando lo studio?
Misure di risultato primarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
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Change in Neck Skin Laxity Scale (NSL scale) Score
Lasso di tempo: Baseline (Week 0), Week 8, Week 16, and Week 24
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Neck skin laxity will be evaluated using standardized clinical photographs captured with the VECTRA® image system. Blinded dermatologists will assess neck skin laxity using NSL Scale at baseline (Week0), Week 8, Week 16, and Week 24. The NSL Scale is a 5-point ordinal scale ranging from 0 to 4, where : 0 = Absent : No visible neck skin laxity.
Higher scores indicate greater neck skin laxity and a worse aesthetic appearance, while lower scores indicate less neck skin laxity and improvement in neck appearance. |
Baseline (Week 0), Week 8, Week 16, and Week 24
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Misure di risultato secondarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
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Participant-Reported Neck Appearance Satisfaction Score Assessed Using the 5-Point Neck Appearance Satisfaction Scale
Lasso di tempo: Baseline (Week 0), Week 8, Week 16, and Week 24
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Participant-reported satisfaction with neck appearance following PLLA treatment will be assessed at baseline (Week 0), Week 8, Week 16 and Week 24 using a 5-point Neck Appearance Satisfaction Scale. The scale ranges from 1 to 5, where :
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Baseline (Week 0), Week 8, Week 16, and Week 24
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Change in skin Firmness and Elasticity Assessed by Cutometer® Dual MPA 580
Lasso di tempo: Baseline (Week 0), Week 8, Week 16, and Week 24
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Skin firmness and elasticity will be assessed using the Cutometer® Dual MPA 580 at baseline (Week 0), Week 8, Week 16, and Week 24.
The Cutometer® Dual MPA 580 is a non-invasive device used to evaluate the biomechanical properties of the skin, including skin firmness and elasticity.
Changes in skin biomechanical properties from baseline to Week 24 will be evaluated.
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Baseline (Week 0), Week 8, Week 16, and Week 24
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Incidence of Treatment-Related Adverse Events
Lasso di tempo: Immediately after PLLA injection (Week 0), Week 8, Week 16, and Week 24
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Treatment-related adverse events will be assessed immediately after PLLA injection (Week 0) and at Week 8, Week 16, and Week 24 through participant interviews and clinical examinations.
Adverse events including pain, swelling ( edema), bruising (ecchymosis), palpable nodules, granuloma formation, infection, hypersensitivity reactions, and any other treatment-related adverse events will be recorded.
Pain will be managed with analgesics as clinically indicated.
Early swelling and bruising will be managed with cold compresses, while delayed nodules due to product accumulation may be treated with massage and normal saline injection.
Persistent nodules suspected to be granulomas may undergo biopsy for confirmation, followed by intralesional triamcinolone injection if clinically indicated.
The outcome measure will be the number and proportion of participants experiencing treatment-related adverse events.
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Immediately after PLLA injection (Week 0), Week 8, Week 16, and Week 24
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Collaboratori e investigatori
Pubblicazioni e link utili
Pubblicazioni generali
- Christen MO. Collagen Stimulators in Body Applications: A Review Focused on Poly-L-Lactic Acid (PLLA). Clin Cosmet Investig Dermatol. 2022 Jun 21;15:997-1019. doi: 10.2147/CCID.S359813. eCollection 2022.
- Tateo A, Siquier-Dameto G, Artzi O, Humzah D, Molina B, Jain R, Lanzarotti A, Laouedj M, Dapis N, Bellia G. Development and Validation of IBSA Photographic Scale for the Assessment of Neck Laxity. Clin Cosmet Investig Dermatol. 2021 Apr 7;14:349-354. doi: 10.2147/CCID.S302860. eCollection 2021.
- Nikolis A, Avelar LE, Enright KM. Evaluation of Cannula Safety in Injection of Poly-L-Lactic Acid. Clin Cosmet Investig Dermatol. 2021 Jun 10;14:615-622. doi: 10.2147/CCID.S305479. eCollection 2021.
- Mazzuco R, Hexsel D. Poly-L-lactic acid for neck and chest rejuvenation. Dermatol Surg. 2009 Aug;35(8):1228-37. doi: 10.1111/j.1524-4725.2009.01217.x. Epub 2009 May 12.
Studiare le date dei record
Studia le date principali
Inizio studio (Stimato)
Completamento primario (Stimato)
Completamento dello studio (Stimato)
Date di iscrizione allo studio
Primo inviato
Primo inviato che soddisfa i criteri di controllo qualità
Primo Inserito (Effettivo)
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Effettivo)
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo verificato
Maggiori informazioni
Termini relativi a questo studio
Parole chiave
Termini MeSH pertinenti aggiuntivi
- Malattie genetiche, congenite
- Malattie del tessuto connettivo
- Malattie della pelle
- Malattie della pelle, genetiche
- Malattie e anomalie congenite, ereditarie e neonatali
- Malattie della pelle e del tessuto connettivo
- Cutis Laxa
- Terapie
- Rotte della somministrazione di droga
- Terapia farmacologica
- Iniezioni
- poli(lattide)
- Nuovo-Riempimento
Altri numeri di identificazione dello studio
- 006/2568
Informazioni su farmaci e dispositivi, documenti di studio
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Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .
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