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Comparison of Efficacy of Carbon Dioxide Laser With Subcision Versus Platelet-Rich Plasma Bio-Fillers With Subcision for the Treatment of Atrophic Acne

3 agosto 2026 aggiornato da: Muhammad Irfan Jamil, Lahore General Hospital

This randomized controlled trial compared two combined treatment approaches for atrophic acne scars. A total of 100 patients aged 15-45 years were enrolled from the Department of Dermatology, Lahore General Hospital, Lahore, and were randomly assigned to one of two treatment groups. All participants underwent subcision, a minor procedure in which fibrous bands beneath depressed acne scars were released to elevate the scarred skin.

Participants in one group received platelet-rich plasma bio-filler injections after subcision. The bio-filler was prepared from each participant's own blood and was injected beneath the acne scars to provide volume and promote collagen formation. Participants in the other group received fractional carbon dioxide laser treatment after subcision. The laser created controlled microscopic skin injuries intended to stimulate collagen production and improve skin texture. Three treatment sessions were administered at 4-week intervals.

Treatment outcomes were assessed using the Patient and Observer Scar Assessment Scale at baseline and during follow-up. Treatment-related adverse effects, including pain, erythema, bruising, and changes in skin pigmentation, were also recorded. Treatment efficacy was defined as a reduction of more than 50% in acne scar severity.

Panoramica dello studio

Stato

Completato

Condizioni

Intervento / Trattamento

Tipo di studio

Interventistico

Iscrizione (Effettivo)

100

Fase

  • Non applicabile

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Luoghi di studio

    • Punjab Province
      • Lahore, Punjab Province, Pakistan, 54000
        • Lahore General Hospital, Lahore

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

  • Bambino
  • Adulto

Accetta volontari sani

No

Descrizione

Inclusion Criteria:

  • Patients of age 15-45 years,
  • both genders,
  • presenting with atrophic acne scars

Exclusion Criteria:

  • Patients with photosensitive dermatosis, keloids, active acne, already taking steroidal, laser or trial treatment in last 6 months, hepatitis B or hepatitis C, hypothyroidism (TSH>5IU), pregnant or breast feeding, skin infection or inflammatory skin disorders requiring systemic antimicrobials (on medical record).
  • Patients with connective tissue disorders or hypersensitivity to lidocaine, taking antiplatelet therapy, bleeding tendencies (on clinical examination)

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

  • Scopo principale: Trattamento
  • Assegnazione: Randomizzato
  • Modello interventistico: Assegnazione parallela
  • Mascheramento: Separare

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Sperimentale: Platelet-Rich Plasma Bio-Filler With Subcision
Participants received subcision using an 18-gauge cannula with forward-backward and fanning movements. After subcision, 0.1 mL of autologous plasma bio-filler was injected intradermally beneath each marked atrophic acne scar. Three treatment sessions were administered at 4-week intervals.
Autologous plasma bio-filler was prepared from 20 mL of venous blood. The blood was centrifuged at 1,500 revolutions per minute for 10 minutes, followed by a second centrifugation at 3,000 revolutions per minute for 10 minutes. Approximately 4-5 mL of the upper plasma layer was collected, heated at 80-100°C for 5 minutes, and subsequently cooled at 0-6°C for 5 minutes to produce a viscous bio-filler. Following subcision, 0.1 mL of the bio-filler was injected beneath each marked scar. Three treatment sessions were provided at 4-week intervals.
Comparatore attivo: Fractional Carbon Dioxide Laser With Subcision
Participants received subcision using an 18-gauge cannula with forward-backward and fanning movements. Subcision was followed by a single pass of fractional carbon dioxide laser treatment. Three treatment sessions were administered at 4-week intervals.
After subcision, the treatment area received a single pass of fractional carbon dioxide laser using a pulse energy of 25 mJ, spot density of 144 spots/cm², pulse interval of 0.5 mm, and pulse duration of 0.1 milliseconds. Three treatment sessions were provided at 4-week intervals.

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Change in Patient and Observer Scar Assessment Scale Score
Lasso di tempo: Baseline and 4, 8, and 12 weeks after initiation of treatment.
Atrophic acne scar severity was assessed using the Patient and Observer Scar Assessment Scale. The scale was completed at baseline and at each follow-up assessment. The change in score from baseline was calculated for each participant and compared between the two treatment groups. A greater reduction from the baseline score represented greater improvement in acne scar severity.
Baseline and 4, 8, and 12 weeks after initiation of treatment.
Proportion of Participants Achieving Treatment Efficacy
Lasso di tempo: 12 weeks after initiation of treatment.
Treatment efficacy was defined as a reduction of more than 50% in atrophic acne scar severity compared with baseline. The reduction was determined using the Patient and Observer Scar Assessment Scale. The number and percentage of participants achieving treatment efficacy were calculated for each treatment group.
12 weeks after initiation of treatment.

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Incidence of Treatment-Related Pain
Lasso di tempo: At 4, 8, and 12 weeks after initiation of treatment.
Treatment-related pain was assessed at each follow-up visit and recorded as present or absent. The number and percentage of participants experiencing pain were compared between the two treatment groups
At 4, 8, and 12 weeks after initiation of treatment.
Incidence of Treatment-Related Pigmentary Changes
Lasso di tempo: At 4, 8, and 12 weeks after initiation of treatment.
Hypopigmentation or hyperpigmentation occurring in the treated area was assessed by clinical examination and recorded as present or absent. The number and percentage of participants developing pigmentary changes were calculated for each treatment group.
At 4, 8, and 12 weeks after initiation of treatment.

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Sponsor

Investigatori

  • Investigatore principale: Kainat Haq, Lahore General Hospital, Lahore

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio (Effettivo)

10 agosto 2025

Completamento primario (Effettivo)

10 febbraio 2026

Completamento dello studio (Effettivo)

10 febbraio 2026

Date di iscrizione allo studio

Primo inviato

3 agosto 2026

Primo inviato che soddisfa i criteri di controllo qualità

3 agosto 2026

Primo Inserito (Effettivo)

7 agosto 2026

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

7 agosto 2026

Ultimo aggiornamento inviato che soddisfa i criteri QC

3 agosto 2026

Ultimo verificato

1 agosto 2026

Maggiori informazioni

Termini relativi a questo studio

Altri numeri di identificazione dello studio

  • LahoreGeneralH17

Informazioni su farmaci e dispositivi, documenti di studio

Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti

No

Studia un dispositivo regolamentato dalla FDA degli Stati Uniti

No

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 .