Post-Surgical Injection With Triamcinolone Versus Triamcinolone/Fluorouracil in Treatment of Keloids

NCT ID: NCT04710719

Last Updated: 2022-07-22

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: NA
• Total Enrollment: 7 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2021-02-01
• Study Completion Date: 2022-07-01

Brief Summary

There have been many modalities utilized in the treatment of keloids of the head and neck, however none have been universally successful. The most widely utilized non-surgical intervention is primary intralesional injection with triamcinolone (TAC) which inhibits the proliferation of fibroblasts, inhibits collagen synthesis, and increases collagenase production, or fluorouracil (5-FU), a potent inhibitor of fibroblast proliferation. Despite the abundance of studies evaluating primary intralesional injection for keloids, there are limited studies available regarding the efficacy of primary surgical excision followed by adjuvant intralesional injection. The proposed study herein would serve to improve the level of evidence and to establish the safety and efficacy of combined intralesional TAC+5FU for keloids following surgical excision.

Detailed Description

This is a single blinded, prospective randomized controlled trial of patients who elect for surgical treatment of keloids at the Center for Facial Plastic and Reconstructive Surgery at Our Lady of the Lake Regional Medical Center (OLOLRMC), a tertiary referral center affiliated with the Louisiana State University Health Sciences Center (LSUHSC) teaching system. Power analysis estimated approximately 134 patients total (67 per group) for 80% power to detect a difference at the 5% confidence level. This is based off of a prior group's study comparing primary intralesional injection with TAC vs TAC+5FU (no surgery). That study showed 39.2% recurrence with TAC vs 17.5% with TAC+5FU.

The patients enrolled in the study will be randomized to one of two arms: surgical excision+TAC or surgical excision+TAC+5FU. Randomization will be performed using a permuted block randomization algorithm (Ex. AABBABABABBABBAA, where A=TAC only group and B=TAC +5FU). All patients will undergo surgical excision of the keloid, either under general anesthesia in the operating room or local anesthesia in the clinic setting depending on patient age and preference. The goal of excision will be complete extra-lesional excision with primary closure. It will be noted if a patient requires intra-lesional excision or additional reconstructive techniques such as advancement flap, skin grafting, or allografting (i.e. Integra). Monofilament sutures will be used preferentially to prevent local inflammatory reaction which can precipitate keloid formation. In group 1 (surgical excision+TAC), all patients will be treated with adjuvant intralesional TAC 40mg/mL 7-10 days post-op and then every 4 weeks for a total of 3 injections. The triamcinolone vial will be obtained from pharmacy and drawn up by the physician prior to injection. In group 2 (surgical excision+TAC+5FU), all patients will be treated with adjuvant intralesional TAC and 5FU at a dose of 0.1mg TAC for every 0.9mg 5FU 7-10 days post-op then every 4 weeks for a total of 3 injections. The mixture of TAC+5FU will be prepared by the pharmacy and delivered to the physician prior to injection. The goal volume of injection for both arms of the study will be 0.1cc per cm2 of scar excised, though any deviations from this and the rationale will be noted.

Assessments will be performed at 3, 6, 9, and 12 months after completion of treatment. At each time point, a member of the study team and patient will complete their respective portion of the Patient and Observer Scar Assessment Scale (POSAS) which has been proven as a reliable and valid method of assessing keloid scars (5). The observer portion of the survey to be completed by the study team assesses vascularity, pigmentation, thickness, pliability, and surface area of the lesion. The patient portion of the survey focuses on the overall cosmetic and functional sequela including pain, itching, color, stiffness, thickness, and irregularity. Patients will also be asked about any side effects experienced. Each portion of the POSAS will be blinded from the study team member and the participant until both have completed the survey at each visit, so that one set of answers will not bias the other. If a patient demonstrates signs of recurrence or return of symptoms, there will be the option for additional injections within the patient's originally designated study arm. However, if early analysis demonstrates the alternative study arm to have superior efficacy, there will be the option to continue injections with the alternative study arm injection.

Data collection will include demographic data such as age, gender, race, and Fitzpatrick skin type, as well as location of the keloid, etiology (trauma, post-surgical, etc.), and prior treatments if any. The size and thickness of each lesion, secondary defect size following adjacent tissue transfer, and amount of adjuvant medication injected during each adjuvant injection will be collected. Data analysis will include overall efficacy as well as stratification by variables such as the location of the lesion, size of the lesion, and prior treatment.

Conditions

Keloid; Keloid Scar Following Surgery

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: TREATMENT
• Blinding Strategy: SINGLE

Study Groups

TAC only

Participants will be treated with adjuvant intralesional TAC 40mg/mL 7-10 days post-op and then every 4 weeks for a total of 3 injections. Assessments will be performed at 3, 6, 9, and 12 months after completion of treatment. At each time point, a member of the study team and patient will complete their respective portion of the Patient and Observer Scar Assessment Scale (POSAS).

Group Type: ACTIVE_COMPARATOR

Triamcinolone Injection

Intervention Type: DRUG

Post surgical injection at site of keloid with TAC for 3 injections

TAC + 5FU

Participants will be treated with adjuvant intralesional TAC and 5FU at a dose of 0.1mg TAC for every 0.9mg 5FU 7-10 days post-op then every 4 weeks for a total of 3 injections. Assessments will be performed at 3, 6, 9, and 12 months after completion of treatment. At each time point, a member of the study team and patient will complete their respective portion of the Patient and Observer Scar Assessment Scale (POSAS).

Group Type: ACTIVE_COMPARATOR

Triamcinolone Injection and 5-fluorouracil injection

Intervention Type: DRUG

Post surgical injection at site of keloid with TAC and 5FU for 3 injections

Interventions

Triamcinolone Injection

Post surgical injection at site of keloid with TAC for 3 injections

Intervention Type: DRUG

Triamcinolone Injection and 5-fluorouracil injection

Post surgical injection at site of keloid with TAC and 5FU for 3 injections

Intervention Type: DRUG

Other Intervention Names

TAC; TAC + 5FU

Eligibility Criteria

Inclusion Criteria

• Subjects of any age
• Subjects with at least one keloid of any size located in the head and neck region

Exclusion Criteria

• subjects with comorbidities prohibiting local injection of either TAC or 5FU including pregnancy, lactation, or planning pregnancy.

• Eligible Sex: ALL
• Accepts Healthy Volunteers: Yes

Sponsors

Louisiana State University Health Sciences Center in New Orleans

OTHER

Sponsor Role: collaborator

Our Lady of the Lake Hospital

OTHER

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Justin Sowder, MD

Role: PRINCIPAL_INVESTIGATOR

Louisiana State University Health Sciences Center - New Orleans

Locations

Our Lady of the Lake Hospital

Baton Rouge, Louisiana, United States

Countries

United States

References

Ren Y, Zhou X, Wei Z, Lin W, Fan B, Feng S. Efficacy and safety of triamcinolone acetonide alone and in combination with 5-fluorouracil for treating hypertrophic scars and keloids: a systematic review and meta-analysis. Int Wound J. 2017 Jun;14(3):480-487. doi: 10.1111/iwj.12629. Epub 2016 Jul 18.

Reference Type: BACKGROUND

PMID: 27427423 (View on PubMed)

Khalid FA, Mehrose MY, Saleem M, Yousaf MA, Mujahid AM, Rehman SU, Ahmad S, Tarar MN. Comparison of efficacy and safety of intralesional triamcinolone and combination of triamcinolone with 5-fluorouracil in the treatment of keloids and hypertrophic scars: Randomised control trial. Burns. 2019 Feb;45(1):69-75. doi: 10.1016/j.burns.2018.08.011. Epub 2018 Oct 16.

Reference Type: BACKGROUND

PMID: 30340861 (View on PubMed)

Al-Attar A, Mess S, Thomassen JM, Kauffman CL, Davison SP. Keloid pathogenesis and treatment. Plast Reconstr Surg. 2006 Jan;117(1):286-300. doi: 10.1097/01.prs.0000195073.73580.46.

Reference Type: BACKGROUND

PMID: 16404281 (View on PubMed)

Davison SP, Dayan JH, Clemens MW, Sonni S, Wang A, Crane A. Efficacy of intralesional 5-fluorouracil and triamcinolone in the treatment of keloids. Aesthet Surg J. 2009 Jan-Feb;29(1):40-6. doi: 10.1016/j.asj.2008.11.006.

Reference Type: BACKGROUND

PMID: 19233005 (View on PubMed)

Wu XL, Gao Z, Song N, Liu W. [Clinical study of auricular keloid treatment with both surgical excision and intralesional injection of low-dose 5-fluorouracil and corticosteroids]. Zhonghua Yi Xue Za Zhi. 2009 Apr 28;89(16):1102-5. Chinese.

Reference Type: BACKGROUND

PMID: 19595138 (View on PubMed)

Nicholas RS, Falvey H, Lemonas P, Damodaran G, Ghannem A, Selim F, Navsaria H, Myers S. Patient-related keloid scar assessment and outcome measures. Plast Reconstr Surg. 2012 Mar;129(3):648-656. doi: 10.1097/PRS.0b013e3182402c51.

Reference Type: BACKGROUND

PMID: 22373972 (View on PubMed)

Other Identifiers

Keloid_5FU/TAC

Identifier Type: -

Identifier Source: org_study_id