Diese Seite wurde automatisch übersetzt und die Genauigkeit der Übersetzung wird nicht garantiert. Bitte wende dich an die englische Version für einen Quelltext.

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

3. August 2026 aktualisiert von: 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.

Studienübersicht

Status

Abgeschlossen

Bedingungen

Intervention / Behandlung

Studientyp

Interventionell

Einschreibung (Tatsächlich)

100

Phase

  • Unzutreffend

Kontakte und Standorte

Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.

Studienorte

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

Teilnahmekriterien

Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.

Zulassungskriterien

Studienberechtigtes Alter

  • Kind
  • Erwachsene

Akzeptiert gesunde Freiwillige

Nein

Beschreibung

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)

Studienplan

Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.

Wie ist die Studie aufgebaut?

Designdetails

  • Hauptzweck: Behandlung
  • Zuteilung: Zufällig
  • Interventionsmodell: Parallele Zuordnung
  • Maskierung: Single

Waffen und Interventionen

Teilnehmergruppe / Arm
Intervention / Behandlung
Experimental: 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.
Biologisch: Platelet-Rich Plasma Bio-Filler With Subcision
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.
Aktiver Komparator: 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.
Gerät: Fractional Carbon Dioxide Laser With Subcision
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.

Was misst die Studie?

Primäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Change in Patient and Observer Scar Assessment Scale Score
Zeitfenster: 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
Zeitfenster: 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.

Sekundäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Incidence of Treatment-Related Pain
Zeitfenster: 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
Zeitfenster: 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.

Mitarbeiter und Ermittler

Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.

Sponsor

Lahore General Hospital

Ermittler

  • Hauptermittler: Kainat Haq, Lahore General Hospital, Lahore

Studienaufzeichnungsdaten

Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.

Haupttermine studieren

Studienbeginn (Tatsächlich)

10. August 2025

Primärer Abschluss (Tatsächlich)

10. Februar 2026

Studienabschluss (Tatsächlich)

10. Februar 2026

Studienanmeldedaten

Zuerst eingereicht

3. August 2026

Zuerst eingereicht, das die QC-Kriterien erfüllt hat

3. August 2026

Zuerst gepostet (Tatsächlich)

7. August 2026

Studienaufzeichnungsaktualisierungen

Letztes Update gepostet (Tatsächlich)

7. August 2026

Letztes eingereichtes Update, das die QC-Kriterien erfüllt

3. August 2026

Zuletzt verifiziert

1. August 2026

Mehr Informationen

Begriffe im Zusammenhang mit dieser Studie

Schlüsselwörter

Andere Studien-ID-Nummern

  • LahoreGeneralH17

Arzneimittel- und Geräteinformationen, Studienunterlagen

Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt

Nein

Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt

Nein

Diese Informationen wurden ohne Änderungen direkt von der Website clinicaltrials.gov abgerufen. Wenn Sie Ihre Studiendaten ändern, entfernen oder aktualisieren möchten, wenden Sie sich bitte an register@clinicaltrials.gov. Sobald eine Änderung auf clinicaltrials.gov implementiert wird, wird diese automatisch auch auf unserer Website aktualisiert .

Abonnieren