ClinicalTrials.gg
Not yet recruitingNCT06803472Updated Jan 31, 2025

Pulsed High Intensity Laser Versus Extracorporeal Shockwave Therapy on Hypertrophic Scar Post Burn

An interventional study of pulsed high intensity laser therapy and Extracorporeal shockwave therapy in Hypertrophic Scar, sponsored by Cairo University. Not yet recruiting. Open to participants aged 20 Years to 45 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-01-31.

Sponsored by Cairo University · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Feb 2025, 1 year 9 months ago, but the record still lists the study as not yet recruiting.
Phase
Not applicable
Study type
Interventional
Enrollment
60
Allocation
Randomized
Ages
20 Years to 45 Years
Sex
All
01

Study summary

The goal of this clinical trial stydy : is to compare between the effect of pulsed high intensity laser and extracorporeal shockwave therapy on hypertrophic scar on post burned patients.

The main questions is it aims to answer is :

  • Which is more effective on hypertrophic scar post burn Extracorporeal shockwave therapy or pulsed high intensity laser therapy?
  • Participants will receive the treatment for 6 weeks.
  • Assesment will be don before and after treatment.
Read the detailed description
  1. Subjects :

    Sixty patients have hypertrophic scar post burn. They will be selected from El Gamaa hospital and randomly distributed into two equal groups. Their ages will be ranged from 20 to 45 years.

  2. Design of the study :

In this study, the patients will be randomly divided into two equal groups in number (30 patients each).

  1. Group A (pulsed high intensity laser group):

    In this group of the study, thirty patients whom have hypertrophic scar post burn injury will receive pulsed high intensity laser in addition to traditional physiotherapy (deep friction massage and stretching exercises) for six weeks. The application will be three times per week.

  2. Group B (Extracorporeal shockwave group):

In this group of the study, thirty patients whom have hypertrophic scar post burn injury will receive Extracorporeal shockwave therapy in addition to traditional physiotherapy (deep friction massage and stretching exercises) for six weeks. The application will be two times per week.

Equipments :

.Measurement equipments :

  1. Modified Vancouver burn Scar assessment scale :

    Modified Vancouver scar scale (VSS), an observer-dependent scale of the macroscopic appearance of scarring, was used to measure changes in the scar over the period of treatment.

    The Modified Vancouver Scar Scale score is probably the most widely known scar scale that consists of three components (vascularization, pliability and scar height); the total score ranges from 0 to 11, with 0 representing normal skin.To assess 3 variables of scar characteristics: Vascularity, pliability and height.

    Scoring; vascularity ranged from 0 to 3 (1 Pink, 2 Red, 3 Purple), pliability ranged from 0 to 5 (1 Supple, 2 Yielding, 3 Firm, 4 Ropes, 5 Contracture) and height ranged from 0 to 3 (1 Less than 2 mm, 2 From 2 to 5 mm, 3 More than 5 mm). The larger the total score, the worse the HTS. The investigators choose an algebraic value for any of these characteristics based on a comparison with normal skin (zero score)

  2. A Schiotz tonometer scale :

This scale will be used as an objective scale to asses the hypertrophic scar pliability and elasticity.

The tissue tonometer provides a repeatable and objective index of burn scar pliability. it is a simple, clinically useful technique for monitoring an individual's scar.

To assess scar pliability and elasticity improvement by an objective manner It is held vertically at a measured point of the scar, so the plunger moved downwards by gravity and indent the scar tissue. The instrument gives a reading on a horizontal scale numbered arbitrarily from 0 to 20, but the device does not measure scar pressure directly, a conversion table, supplied with the Schiotz tonometer pressure directly, a conversion table, supplied with the Schiotz tonometer, is used to translate the instrument readings into measurements by mmHg .

Treatment procedure :

  1. Pulsed High Intensity Laser application procedure:

    • Should wear laser-protective glasses or goggles.
    • Inappropriate use of the goggles is more dangerous than their non-use, as they may provide a false sense of security.
    • Laser equipment should be placed in a controlled area with minimal access to avoid inadvertent exposure.
    • Avoid laser reflection from mirrored surfaces.
    • Avoid exposure of eyes, unclosed fontanels of children.
    • Applied at at fluence of 40 J/cm2 , pulse duration of 0.3 m/s , spot size of 5 mm in a focused mode for 3 passes.
  2. Extracorporeal shockwave application procedure:

    • Patients will receive sessions of ESWT twice a week for 6 weeks.
    • ESWT will be administered on an outpatient basis; the selected treatment area is usually the most uncomfortable for the patient. Patient placed into comfortable position that allowed the vision of the treated area.
    • Each treatment region covered with 2500 to 3000 impulses with average session time 10-15 min.

conservative treatment for both groups: (Stretching exercises and Deep friction massage ) 2 sessions per week for 6 weeks

02

Conditions studied

  • Hypertrophic Scar

Keywords

  • Hypertrophic scar
03

In context

Cicatrix, Hypertrophic

129 studies on the registry are indexed under Cicatrix, Hypertrophic; 31 are open to participants now.

This study's planned enrollment of 60 is above the median of 36 across 106 interventional studies indexed under Cicatrix, Hypertrophic.

Browse Cicatrix, Hypertrophic studies →

Lead sponsor

Cairo University is the lead sponsor of 4,941 studies on the registry; 1,458 are open to participants now.

Of its 37 completed or terminated interventional studies of FDA-regulated products, 5 (14%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
20 Years to 45 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • The patients age will range from 20 to 45 years.
  • All patients will be free from any other pathological conditions or histories except hypertrophic scar.
  • patients will be selected from both gender.
  • All patients will have hypertrophic scars post burn injuries.

Exclusion criteria

Exclusion Criteria:

  • The patients who have open wound at or near treatment site.
  • The patients who have cardiac pacemakers or other implanted electronic devices.
  • The patients who have any significant health problem such as diabetes, circulatory
  • disorders or history of skin in the treated area.
  • uncooperative patients.
  • The patients who have a deep venous thrombosis (DVT).
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
60 participants (estimated)

Study arms

  • Active comparator
    study group receives pulsed high intensity laser and coservative treatment

    Device: pulsed high intensity laser therapy

  • Active comparator
    study group receives extracorporeal shockwave therapy and coservative treatment

    Device: Extracorporeal shockwave therapy

Interventions

  • Devicepulsed high intensity laser therapy

    The high-intensity laser therapy (HILT), which involves laser radiation with high-intensity, is a kind of novel and powerful . The HILT possesses its own photomechanical, photothermal, and the photo-chemical properties.

  • DeviceExtracorporeal shockwave therapy

    Extracorporeal shockwave therapy is an acoustic wave that mechanically disrupts tissue by cavitation.Shock waves develop microscopic injuries in scar tissue and break down collagen fibers which lead to scar remodelin .The patient is positioned in a comfortable position. The scar site is prepared with contact gel to conduct the shock waves, 30-50 shocks/cm2 , with an energy flux density of 0.25mJ/mm2 and a frequency of 6Hz. Each treatment region is covered with 2500 to 3000 impulses with an average session time of 10-15min .

06

What researchers measure

Primary outcomes

  1. Modified Vancouver burn Scar assessment scale

    Modified Vancouver scar scale , an observer-dependent scale of the macroscopic appearance of scarring, is used to measure changes in the scar over the period of treatment,The Modified Vancouver Scar Scale score is probably the most widely known scar scale that consists of three components (vascularization, pliability and scar height); the total score ranges from 0 to 11, with 0 representing normal skin ,Scoring; vascularity ranged from 0 to 3 (1 Pink, 2 Red, 3 Purple), pliability ranged from 0 to 5 (1 Supple, 2 Yielding, 3 Firm, 4 Ropes, 5 Contracture) and height ranged from 0 to 3 (1 Less than 2 mm, 2 From 2 to 5 mm, 3 More than 5 mm). The larger the total score, the worse the HTS. The investigators choose an algebraic value for any of these characteristics based on a comparison with normal skin (zero score).

    Time frame: change of the total score from the begginning of the treatment to the end of the treatment (after 6 weeks from the begginning of the treatment)

Secondary outcomes

  1. Aschiotz tonometer device

    Aschiotz tonometer device, will be used as an objective scale to asses the hypertrophic scar pliability and elasticity. The tissue tonometer provides a repeatable and objective index of burn scar pliability. it is a simple, clinically useful technique for monitoring an individual's scar It is held vertically at a measured point of the scar, so the plunger moved downwards by gravity and indent the scar tissue. The instrument gives a reading on a horizontal scale numbered arbitrarily from 0 to 20, but the device does not measure scar pressure directly, a conversion table, supplied with the Schiotz tonometer, is used to translate the instrument readings into measurements by mmHg.

    Time frame: change of the hypertrohic scar pressure score from the begginning of the treatment to the end of the treatment (after 6 weeks from the begginning of the treatment)

07

Study locations

No study locations are listed for this record.

08

References and documents

Publications

  • Ruchiatan K, Suhada KU, Hindritiani R, Puspitosari D, Septrina R. Combination of 1064 nm Long-Pulsed and Q-Switched Nd:YAG Laser for Facial Hypertrophic Scar and Hyperpigmentation Following Burn Injury. Int Med Case Rep J. 2022 Jan 25;15:23-27. doi: 10.2147/IMCRJ.S348091. eCollection 2022. PubMed 35115845 ↗
  • Lee SY, Joo SY, Cho YS, Hur GY, Seo CH. Effect of extracorporeal shock wave therapy for burn scar regeneration: A prospective, randomized, double-blinded study. Burns. 2021 Jun;47(4):821-827. doi: 10.1016/j.burns.2020.08.009. Epub 2020 Aug 29. PubMed 32917473 ↗

Individual participant data

Plan to share: No

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Start is estimated for Jan 2025; primary completion for Feb 2025, 0 months later.

Of 33 interventional studies with no phase under Cicatrix, Hypertrophic, half reached primary completion within 18 months of starting (the median), counting those still running; a quarter within 12 and three quarters within 30. This study's planned 0 months is below that.

How these figures are worked out, and which studies are left out of them.

Registered
Jan 26, 2025
First posted
Jan 31, 2025
StartEst.
Jan 26, 2025
Primary completionEst.
Feb 10, 2025
CompletionEst.
Mar 25, 2025
Last update
Jan 31, 2025
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jan 31, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06803472
Lead sponsor
Cairo University
Responsible party
Amira Fayed Ali Ibrahim (physiotherapist, Cairo University) — Principal investigator
First posted
Jan 31, 2025
Start date
Jan 26, 2025 (estimated)
Primary completion
Feb 10, 2025 (estimated)
Completion
Mar 25, 2025 (estimated)
Last update
Jan 31, 2025

Study contacts

Amira Fayed Ali, Bachelor's
Contact
fayedamira82@gmail.com
01011172739
Haidy Nady Ashem, professor
Contact
haidyjoj.hn@gmail.com
Haidy Nady Ashem, professor
study director · faculty of physical therapy

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is not yet recruiting, as verified in Dec 2024. You cannot join it, but the record below documents what was studied.

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