Effectiveness of Botulinum Toxin A in Preventing Scar Formation and Initial Exploration of "Optimal Concentration"

Early Phase 1CompletedNCT06437912

Dezhou Hospital Qilu Hospital of Shandong University50 enrolled

Overview

Each year, millions of burn, trauma, or surgical patients worldwide suffer from scarring that severely affects their quality of life and social functioning. In order to prevent and treat diseases related to abnormal scar hyperplasia, clinicians and researchers have adopted various methods, such as scar grinding, surgical resection, drug injection in scar tissue, cryotherapy, laser and so on. However, these methods can not effectively inhibit the abnormal proliferation of scars and improve the adverse effects of existing scars on patients. To date, there is no accepted gold standard for the effective treatment and improvement of abnormal scar tissue.

Through a large number of literature review and preliminary experiments, we summarized and found the following problems: a. The latest research on prevention of scar formation by botulinum toxin type A is only aimed at surgical wounds from the wound type, and there is no research on the scar prevention effect of trauma wounds. b. From the point of view of the study site, there is no study on the effect of scar prevention only on the head, neck, chest and other parts of the body. c. For the research results of botulinum toxin type A in the prevention of scarring, the current research focuses on the effectiveness of botulinum toxin type A at a certain concentration, and does not compare the effects of botulinum toxin type A at various concentrations.Therefore, in order to explore the "optimal concentration" of botulinum toxin type A to prevent scar formation; To explore the effect of botulinum toxin A on scar prevention of traumatic wounds and surgical incisions. To explore the effect of botulinum toxin A on scar prevention in other parts of the body in addition to effective prevention of head, neck and chest scar, We intend to focus on the effectiveness and "optimal concentration" of botulinum toxin type A to prevent scarring, to determine the effect of this means on scar prevention, to provide new ideas for botul

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

PREVENTION

Masking

Eligibility

Sex: ALLMin age: 12 YearsMax age: 65 YearsHealthy volunteers:

Medical Language ↔ Plain English

Inclusion Criteria: Patients with emergency trauma and skin swellings, with clear consciousness, no mental retardation or cognitive difficulties, agree to participate in this study, 12≤ age ≤ 65 years old Exclusion Criteria: Allergic to botulinum toxin type A;Pregnant, lactating women, patients who plan to get pregnant in the near future;Patients taking retinoic acid, synthetic steroids, amino glycosides antibiotics, calcium channel blockers, cyclosporine and cholinesterase inhibitors; 4 Neuromuscular diseases: such as myasthenia gravis, Lambert-Eaton syndrome, multiple sclerosis;5. Patients with cardiovascular diseases, kidney diseases, liver and other basic diseases; 6 Patients with infection at the injection site; 7 Expect unrealistic patients.

Outcomes

Primary Outcomes

The modified Stony Brook Scar Evaluation Scale

The mSBSES included width (0 = scar enlargement prominent and \> 2 mm, 1 = presence of scar enlargement ≤ 2 mm, 2 = no scar widening), height (0 = marked scar uplift, 1 = presence of scar uplift, 2 = no scar uplift), color (0 = scar significantly redder than surrounding, 1 = scar redder than surrounding and 2 = scar the same color as or lighter than surrounding skin), The visibility of the incision line (0 = marked incision line, 1 = presence of incision line, 2 = absence of incision line) was objectively assessed separately in non-chronological order, with overall scar values varying from 0 to 8, with higher scores indicating better scar appearance.

Time frame: Postoperative 7 days, 15 days, 1 month, 3 months, 6 months

Secondary Outcomes

Patient satisfaction and perceptions represented secondary outcome measures in this study

Patient Satisfaction Scale (1=dissatisfied, 2=slightly satisfied, 3=satisfied, and 4=very satisfied). They were also asked to assess their levels of pain (0=no pain, 1=mild, 2=moderate, 3=severe, 4=very painful) and pruritus (0=no itch, 1=mild, 2=moderate, 3=severe, 4=very itchy) at the incision site. The totals varied between 0-8, where lower scores indicated more positive subjective patient perceptions.