Evaluating Hyaluronic Acid for Treating Hypertrophic Scars

Multicenter, Double Blind, Randomized, Controlled Clinical Investigation to Evaluate the Performance of Autocross-linked Hyaluronic Acid for the Treatment of Hypertrophic Scars

Not applicable Interventional Fidia Farmaceutici s.p.a. · NCT04614415

This study is testing if a new type of hyaluronic acid injection can help improve hypertrophic scars compared to a placebo treatment.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment78 (estimated)
Ages18 Years to 85 Years
SexAll
SponsorFidia Farmaceutici s.p.a. Industry-sponsored
Locations4 sites (Ancona and 3 other locations)
Trial IDNCT04614415 on ClinicalTrials.gov

What this trial studies

This clinical investigation evaluates the effectiveness of auto-cross-linked Hyaluronic acid in treating hypertrophic scars through intralesional and hypodermic injections. Patients will be randomized into two groups, with one receiving the treatment and the other receiving a placebo of isotonic saline solution. Evaluations will be conducted using the POSAS scale and ultrasound assessments at multiple time points post-treatment. Additionally, a small surgical biopsy may be performed for histological evaluation of the scar tissue before and after treatment.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18 to 85 with hypertrophic scars caused by trauma, burns, or iatrogenic injuries that have been present for at least 12 months.

Not a fit: Patients with type I and type II diabetes mellitus or those with oncological diseases may not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment could significantly improve the appearance and quality of life for patients with hypertrophic scars.

How similar studies have performed: Other studies have shown promise in using Hyaluronic acid for scar treatment, suggesting potential for success in this approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Signed written informed consent
* Male or female subjects aged ≥ 18 and ≤ 85 years
* Subjects with hypertrophic scars caused by trauma, burn or iatrogenic injury with or without involvement of the mobile joints
* Scar \> 2 to \< 25 cm2 of surface
* Scar not previously treated with corticosteroids, laser or other invasive treatments
* Scar present for at least 12 months
* Scar located in all areas of the body with the exception of the face and neck
* Fitzpatrick skin score of I-VI
* Subjects willing to comply with all the steps of treatment and follow-up visits
* Subjects willing to refrain from any cosmetic intervention in the area to be treated during the clinical investigation
* Female of child-bearing potential (i.e. not in menopausal status from at least one year or permanently sterilized) must have a negative urine pregnancy test prior the first treatment

Exclusion Criteria:

Subjects with type I and type II diabetes mellitus

* Subjects with oncological diseases in progress or in remission
* Subjects receiving immunosuppressive drugs and corticosteroids, anticoagulants, antiplatelet agents
* Subjects with autoimmune diseases including connectivitis
* Subjects with congenital or acquired immunodeficiencies (including metabolic ones)
* Subjects with known allergy or hypersensitivity to hyaluronic acid or its derivatives
* Participation in clinical trials/investigations in the last 30 days
* Pregnant or breastfeeding women
* If female and of child-bearing potential, subject not using a highly effective method of birth control and not willing to use it during the participation to the clinical investigation
* Subjects not willing to avoid tanning during the clinical investigation
* Subjects with inflammations of the skin, including rosacea
* Subject with skin infection in the area to be treated
* Subjects having a high probability of non-compliance with the study procedures according to Investigator's judgement

Where this trial is running

Ancona and 3 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Hypertrophic Scar
Last reviewed 2026-06-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.