Outcomes of the A.S.A.P. Algorithm for Keloids: A Controlled Prospective Study

NCT07836569 — Not applicable, Completed, 116 participants, Gisele Viana de Oliveira

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Clinical and Objective Outcomes of the A.S.A.P. Algorithm for Keloids: A Prospective Longitudinal Within-Patient Study With an Untreated Comparison Group

RegistryNCT07836569
StatusCompleted
PhaseNot applicable
Study typeInterventional; non randomized, parallel, masking: none, treatment
Enrollment116 (Actual)
SponsorGisele Viana de Oliveira (Other)
ConditionsKeloid
InterventionsA.S.A.P. Algorithm (Other)
Datesstart 2025-09-01, primary completion 2026-07-01, completion 2026-09-10, first posted 2026-09-23, last updated 2026-09-29
Locations1 site in Brazil

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-Summary

The goal of this clinical trial is to evaluate if the A.S.A.P. algorithm can treat and improve clinical and objective outcomes in patients with keloids.

The main questions it aims to answer are:

Does sequential treatment with the A.S.A.P. algorithm significantly improve keloid scar characteristics and firmness compared to baseline? Are the longitudinal clinical and objective improvements greater in keloids treated with the A.S.A.P. algorithm compared to an untreated control group? Researchers will compare keloids treated with the sequential A.S.A.P. algorithm to a concurrent untreated group of keloids to see if the treatment algorithm produces superior improvements in scar severity and firmness.

Participants will:

Undergo sequential treatment according to the A.S.A.P. algorithm for at least 6 months, which includes hydrocolloid occlusion, Low-Level Laser Therapy (LLLT), vascular-targeted technologies, intralesional triamcinolone plus 5-fluorouracil, and treatment of residual pigmentation.

Complete clinical scar evaluations at baseline and follow-up using the Vancouver Scar Scale (VSS) and Hamilton Scar Scale.

Undergo objective scar firmness measurements at baseline and follow-up using a durometer.

If in the nonrandomized control group, be prospectively observed and assessed at baseline and follow-up without receiving active treatment.

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+Detailed description

Keloid management remains challenging due to clinical heterogeneity, variable treatment responses, and limited objective evidence supporting multimodal treatment strategies. The A.S.A.P. algorithm is a structured, sequential, predominantly nonsurgical protocol incorporating Assessment, Softening, Approach, and Pigmentation management.

This prospective, longitudinal, quasi-experimental study aims to evaluate within-patient changes in clinical and objective keloid outcomes following treatment with the A.S.A.P. algorithm over a minimum 6-month period, while comparing these changes against a concurrent nonrandomized group of untreated keloids.

Study Workflow:

Assessment (A): Initial clinical evaluation, symptom assessment, and classification of keloid lesions.

Softening (S): Application of hydrocolloid occlusion, silicone dressings, or pressure garments for 2-12 months to reduce tissue firmness, alleviate symptoms, and prepare the lesion for injections.

Approach (A): Utilization of vascular-targeted technologies (such as Intense Pulsed Light - IPL) followed by monthly intralesional injections combining triamcinolone hexacetonide (TH) with 5-fluorouracil (5-FU) or bleomycin.

Pigmentation \& Quality (P): Management of residual hyperpigmentation or hypopigmentation and skin texture using topical therapies (hydroquinone, glycolic acid, 8-methoxypsoralen \[8-MOP\]), chemical peels, microneedling, or fractional lasers.

Outcome Measurements:

Lesion changes are evaluated at baseline and at follow-up intervals using the Vancouver Scar Scale (VSS), Hamilton Scar Scale, and objective durometer measurements to quantify skin firmness and elasticity.

+Arms and interventions

ArmTypeInterventionsDescription
A.S.A.P. Treatment GroupExperimentalOther: A.S.A.P. AlgorithmPatients receiving sequential treatment according to the A.S.A.P. algorithm.
Untreated Control GroupNo interventionConcurrent nonrandomized control group prospectively observed and assessed at baseline and follow-up without active treatment.
  • A.S.A.P. Algorithm (Other): A - Assessment: Baseline clinical evaluation including standardized photo documentation, phototype assessment, and skin durometer measurements. S - Soften: Continuous occlusive hydrocolloid dressings (DuoDERM) secured with Micropore, changed biweekly in-clinic or self-managed with monthly evaluations. A - Approach: Monthly sessions of low-level laser therapy (7 minutes) and vascular technologies \[Intense Pulsed Light (IPL) 540nm (12-17 J, 15 ms) and Neodymium-doped Yttrium Aluminum Garnet (Nd:YAG) 1064nm (3 mm spot, 20 J/cm², 620-650 ms)\]. Followed immediately by intralesional injection of triamcinolone plus 5-fluorouracil (1:9 ratio; 0.2 mL per 1.5 cm², max 1.5 mL/session) and re-application of occlusive dressings. P - Pigmentation: After lesion flattening, pigmentary alterations are treated using light and laser devices (IPL 640nm, picosecond laser), retinoic acid peels, and topical depigmenting agents.

+Outcome measures

Primary outcomes

  • Change from Baseline in Vancouver Scar Scale (VSS) Score [Baseline and at least 6 months post-treatment initiation]: The VSS evaluates four clinical scar parameters: vascularity (0-3), pigmentation (0-2), pliability (0-5), and height (0-3), yielding a total score ranging from 0 to 13. Lower scores represent clinical improvement, while higher scores indicate greater scar severity.

Secondary outcomes

  • Change from Baseline in Hamilton Scar Scale Score [Baseline and at least 6 months post-treatment initiation]: Clinical assessment of scar characteristics using the Hamilton Burn-Scar Rating Scale, evaluating thickness (0-3), irregularity (0-4), vascularity (0-4), and pigmentation (0-3). Total score ranges from 0 to 14, where 0 represents normal skin and 14 represents maximum scar severity. Higher scores indicate worse outcome.
  • Change from Baseline in Objective Scar Firmness [Baseline and at least 6 months post-treatment initiation]: Objective measurement of keloid tissue induration and hardness performed using a skin durometer.
  • QualiFibro: Quality of Life Questionnaire for Patients with Fibroproliferative Scars [Baseline and 6-18 months post-treatment initiation]: Minimum score: -5 Maximum score: +5 Direction: Higher scores indicate a worse outcome (greater impact of the scar on physical and psychological well-being).
  • Beck Depression Inventory-II [Baseline and at least 6 months post-treatment initiation.]: Minimum score: 0 Maximum score: 63 Scale: 21 items, each scored from 0 to 3. These values refer to the BDI-II (Beck Depression Inventory-II).

+Eligibility

Sex: All, ages: 18 Years to any

Inclusion Criteria:

* Male or female patients aged 18 years or older
* Clinical diagnosis of keloid established by an experienced senior dermatologist
* No treatment received for keloid for at least 12 months prior to study enrollment
* Willingness to participate in the study, documented by written informed consent

Exclusion Criteria:

* Concomitant medical conditions requiring systemic corticosteroids or immunosuppressive therapy
* Failure to adhere to the proposed treatment protocol

+Locations (1)

FacilityCityCountryStatus
Gisele Viana DermatologiaBelo Horizonte, Minas GeraisBrazil

+Publications

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  • Murray JC, Pollack SV, Pinnell SR. Keloids: a review. J Am Acad Dermatol. 1981 Apr;4(4):461-70. doi: 10.1016/s0190-9622(81)70048-3. PMID 7014664
  • Ogawa R. Keloid and Hypertrophic Scars Are the Result of Chronic Inflammation in the Reticular Dermis. Int J Mol Sci. 2017 Mar 10;18(3):606. doi: 10.3390/ijms18030606. PMID 28287424
  • Kim HJ, Kim YH. Comprehensive Insights into Keloid Pathogenesis and Advanced Therapeutic Strategies. Int J Mol Sci. 2024 Aug 12;25(16):8776. doi: 10.3390/ijms25168776. PMID 39201463
  • Valle LNDC, Mendes VB, Melchiors Stahlschmidt AP, Andrade FR, Silva MR, de Oliveira GV. Body appreciation and psychosocial indicators in patients with keloids, hypertrophic scars, and burn scars. Scars Burn Heal. 2026 Jul 24;12:20595131261468100. doi: 10.1177/20595131261468100. eCollection 2026 Jan-Dec. PMID 42502838
  • Falanga V, Bucalo B. Use of a durometer to assess skin hardness. J Am Acad Dermatol. 1993 Jul;29(1):47-51. doi: 10.1016/0190-9622(93)70150-r. PMID 8315077
  • Shaheen A, Khaddam J, Kesh F. Risk factors of keloids in Syrians. BMC Dermatol. 2016 Sep 20;16(1):13. doi: 10.1186/s12895-016-0050-5. PMID 27646558
  • Brandao MPAS, Vieira CFO, Rocha DBB, Silva MR, da Silva JA, Gold MH, de Oliveira GV. Outcomes of a Non-Surgical Combination Therapy for Keloids in Skin of Color Patients: A 10-Year Follow-Up Study. Int J Dermatol. 2025 Aug;64(8):1434-1440. doi: 10.1111/ijd.17829. Epub 2025 May 5. PMID 40322860
  • de Oliveira GV, Nunes TA, Magna LA, Cintra ML, Kitten GT, Zarpellon S, Raposo Do Amaral CM. Silicone versus nonsilicone gel dressings: a controlled trial. Dermatol Surg. 2001 Aug;27(8):721-6. doi: 10.1046/j.1524-4725.2001.00345.x. PMID 11493295
  • Oliveira GV, Chinkes D, Mitchell C, Oliveras G, Hawkins HK, Herndon DN. Objective assessment of burn scar vascularity, erythema, pliability, thickness, and planimetry. Dermatol Surg. 2005 Jan;31(1):48-58. doi: 10.1111/j.1524-4725.2005.31004. PMID 15720096
  • Crowe JM, Simpson K, Johnson W, Allen J. Reliability of photographic analysis in determining change in scar appearance. J Burn Care Rehabil. 1998 Mar-Apr;19(2):183-6. doi: 10.1097/00004630-199803000-00019. PMID 9556325
  • Sullivan T, Smith J, Kermode J, McIver E, Courtemanche DJ. Rating the burn scar. J Burn Care Rehabil. 1990 May-Jun;11(3):256-60. doi: 10.1097/00004630-199005000-00014. PMID 2373734
  • van Zuijlen PP, Angeles AP, Kreis RW, Bos KE, Middelkoop E. Scar assessment tools: implications for current research. Plast Reconstr Surg. 2002 Mar;109(3):1108-22. doi: 10.1097/00006534-200203000-00052. PMID 11884845
  • de Oliveira GV, Metsavaht LD, Kroumpouzos G. ASAP revisited: The Brazilian sequential algorithm for treating keloids and hypertrophic scars. Clin Dermatol. 2026 Jan-Feb;44(1):192-196. doi: 10.1016/j.clindermatol.2025.10.011. Epub 2025 Oct 29. PMID 41173162
  • Viana de Oliveira G, Druck PA, Acevedo AAL, Hexsel D, Gontijo GT, Rivera GH, Velazquez-Arenas LL, Addor FASA, Zaputovich FA, Leal-Silva H, Leal-Delgado S, Escribens CE, Murillo KDO, Misticone S, D'orsi Metsavaht L, de la Riva J, Galimberti DR, Jedwab SKK, Garcia HRG, Silva MRE, Andrade MR, Reis-Filho E, Silva MR, Krompouzos G, Guzman-Sanchez D. Consensus on energy-based devices for keloids and hypertrophic scars: A Latin American Delphi study. J Eur Acad Dermatol Venereol. 2026 Aug 10. doi: 10.1111/jdv.70636. Online ahead of print. PMID 42573498
  • Oliveira GV, Metsavaht LD, Kadunc BV, Jedwab SKK, Bressan MS, Stolf HO, Castro RG, Bezerra SMFMC, Calil DA, Addor FAZ, Fraga JCS, Reis CMS, Reis-Filho E, Silva MR, Ramos-E-Silva M, Hexsel DM. Treatment of keloids and hypertrophic scars. Position statement of the Brazilian expert group GREMCIQ. J Eur Acad Dermatol Venereol. 2021 Nov;35(11):2128-2142. doi: 10.1111/jdv.17484. Epub 2021 Jul 15. PMID 34263958