NCT04719559

Brief Summary

This clinical study was conducted to assess the effects of LADD combined with a fractional ablative carbon dioxide laser and a topical steroid for the treatment of post-thyroidectomy hypertrophic scars.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
10

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Mar 2018

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

March 20, 2018

Completed
5 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 10, 2018

Completed
8 months until next milestone

Study Completion

Last participant's last visit for all outcomes

April 2, 2019

Completed
1.8 years until next milestone

First Submitted

Initial submission to the registry

January 14, 2021

Completed
8 days until next milestone

First Posted

Study publicly available on registry

January 22, 2021

Completed
Last Updated

January 22, 2021

Status Verified

January 1, 2021

Enrollment Period

5 months

First QC Date

January 14, 2021

Last Update Submit

January 19, 2021

Conditions

Outcome Measures

Primary Outcomes (3)

  • Self-assessment by patients before treatment

    For each patient's self-assessment before the first treatment, we adopted the patient and observer scar assessment scale (POSAS)18, with a range of 1-10 for representing the severity of the itchiness, pain, color, softness, thickness, irregularity, and distorted appearance of the scar.

    before first treatment

  • Self-assessment by patients after treatment

    For each patient's self-assessment1 year after the first treatment, we adopted the patient and observer scar assessment scale (POSAS)18, with a range of 1-10 for representing the severity of the itchiness, pain, color, softness, thickness, irregularity, and distorted appearance of the scar.

    1 year after the first treatment

  • Doctor evaluations using the POSAS scoring range of 1-10

    Four doctors participated as observers of the clinical outcomes. One of the doctors carried out all treatments and evaluated seven parameters, namely, vascularity, pigmentation, thickness, relief, pliability, surface area, and overall opinion based on the POSAS using a scoring range of 1-10, from normal to worst conditions 1 year after the first treatment. The remaining three doctors acted as observers to evaluate the general appearances of the scars based on photographs captured by the same photographer with the same camera 1 year after the first treatment. They then rated the scar on a score of 1-10.

    1 year after the first treatment

Study Arms (1)

Post-Thyroidectomy Hypertrophic Scar

OTHER

Patients had all presented a persistent hypertrophic scar at the neck region for more than 1 year after their thyroidectomy.

Device: Laser-assisted drug delivery

Interventions

All patients received treatment using the same protocol with the same fractional ablative carbon dioxide laser (eCO2 PlusTM, manufactured by Lutronic, South Korea). Each patient was applied with Lidopin 5% cream (Panion \& BF Biotech Inc.), which remained on the scar for 30 min for pain relief before each laser course. Later, the Lidopin 5% cream was gently removed using a normal saline-rinsed gauze, and the scar was treated with a fractional ablative carbon dioxide laser with two passes under a 10,600 nm wavelength, 120 mm spot size, pulse energy of 50 mJ, 30 W of power, and a density of 200. A topical steroid cream (clobetasol propionate, 0.05%) was evenly applied on the scar gently back and forth using a cotton swab immediately after the laser treatment. The patients underwent five full courses by the same doctor according to the same protocol, with each course given 4 weeks apart.

Post-Thyroidectomy Hypertrophic Scar

Eligibility Criteria

Age20 Years - 100 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients had presented a persistent hypertrophic scar at the neck region for more than 1 year after their thyroidectomy.

You may not qualify if:

  • Systemic chronic disease or a history of autoimmune disease or human immunodeficiency virus infections.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Kaohsiung Chang Gung Memorial Hospital

Kaohsiung City, 83301, Taiwan

Location

MeSH Terms

Conditions

Thyroid DiseasesWounds and Injuries

Condition Hierarchy (Ancestors)

Endocrine System Diseases

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 14, 2021

First Posted

January 22, 2021

Study Start

March 20, 2018

Primary Completion

August 10, 2018

Study Completion

April 2, 2019

Last Updated

January 22, 2021

Record last verified: 2021-01

Locations