Clinical trial NCT05555602: Observation of the Comfort and Efficacy of CO2 Laser Combined With Cryo 6 for Burn or Linear Scars.
Official title: Clinical Observation of the Comfort and Efficacy of Carbon Dioxide(CO2) Laser 10,600 nm Combined With Cold-air Cooling Device Zimmer Cryo 6 for Burn Scars or Linear Scars.
Study type: INTERVENTIONAL
Overall status: UNKNOWN
Phase: NA
Conditions: Cryotherapy Effect
Burn Scar
Scar; Previous Cesarean Section
Lead sponsor: Xinhua Hospital, Shanghai Jiao Tong University School of Medicine
Sponsor class: OTHER
Collaborators: name: Zimmer Medical Devices (Shanghai) Co., Ltd.
First posted: 2022-09-27
Enrollment: 40
Sex: ALL
Minimum age (years): 14
Maximum age (years): 60
Standard ages: CHILD
ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: SUPPORTIVE_CARE

Brief summary: To investigate the effect of 10,600 nm CO2 laser combined with Zimmer Cryo 6 forced cold air device on the comfort and efficacy of patients with burn scars or post-operative linear scars, and to provide a safer, more effective and more satisfactory program for clinical treatment of burn scars or post-operative linear scars.

Detailed description: Objective: To investigate the effect of 10,600 nm CO2 laser combined with the cold-air cooling device Zimmer Cryo 6 on the comfort and efficacy of patients with burn scars or post-operative linear scars, and to provide a safer, more effective and more satisfactory program for clinical treatment of burn scars or post-operative linear scars.

Secondary objective: To investigate the adverse effects of the cold-air cooling device Zimmer Cryo 6 in combination with the 10,600 nm CO2 fractional laser treatment for patients with burn scars or post-operative linear scars.

Eligibility criteria: Inclusion Criteria:

1. Age 14-60 years;
2. The patient agreed to participate in the experiment and signed the informed consent by himself/herself or his/her legal representative;
3. The clinical diagnosis was burn scar or post-operative linear scar, and the total area was more than 5 cm2.
4. No other treatment such as laser or chemical exfoliation was performed on the lesion within the recent half year.
5. Skin lesions were free of bleeding, ulceration, infection and other conditions affecting the visual field of laser treatment.

Exclusion Criteria:

1. Patients with an active or established sun tan;
2. Patients with history of allergic reaction to to topical anesthesia;
3. Patients with history of keloid scarring, abnormal wound healing and/or prone to bruising;
4. Skin malignant tumors or precancerous lesions;
5. Patients with diabetes, heart disease, epilepsy, connective tissue disease, etc.;
6. Pregnant or breastfeeding patients;
7. Patients with recent skin infections (such as viral and bacterial infections);
8. Patients who are using other methods to treat similar diseases;
9. Patients who had taken isotretinoin within the past year;
10. History of cryoglobulinaemia;
11. History of cold agglutinin disease and cold haemolysis;
12. History of cold urticaria;
13. Parts of the body with impaired circulation;
14. Raynaud's disease;
15. Parts of the body with impaired sensitivity;
16. Trophic disorders;
17. Hypersensitivity to cold;
18. Patients with mental illness;
19. Other ineligible patients.

Primary outcomes:
measure: Numeric Rating Scale (NRS)
timeFrame: Immediately after treatment
Secondary outcomes:
measure: Skin temperature
timeFrame: Baseline, immediately after treatment
measure: Number of treatment interruptions
timeFrame: Immediately after treatment
Other outcomes:
measure: Scar area
timeFrame: Baseline, 1 month after the 1st treatment, 1 month after the 2nd treatment, 1 month after the 3rd treatment
measure: Scar color
timeFrame: Baseline, 1 month after the 1st treatment, 1 month after the 2nd treatment, 1 month after the 3rd treatment
measure: Scar volume
timeFrame: Baseline, 1 month after the 1st treatment, 1 month after the 2nd treatment, 1 month after the 3rd treatment
measure: Scar melamin
timeFrame: Baseline, 1 month after the 1st treatment, 1 month after the 2nd treatment, 1 month after the 3rd treatment
measure: Scar erythema
timeFrame: Baseline, 1 month after the 1st treatment, 1 month after the 2nd treatment, 1 month after the 3rd treatment
measure: Satisfaction evaluation
timeFrame: 1 month after the 1st and the 3rd treatments.
Locations:
city: Shanghai
country: China
facility: Xinhua Hospital affiliated to Shanghai Jiaotong University School of Medicine
state: Shanghai
Study officials:
affiliation: Zimmer Medical Devices (Shanghai) Co., Ltd.
name: Yo-Yu Tseng, M.Sc
role: PRINCIPAL_INVESTIGATOR
References:
citation: Tian H, Wang L, Xie W, Shen C, Guo G, Liu J, Han C, Ren L, Liang Y, Tang Y, Wang Y, Yin M, Zhang J, Huang Y. Epidemiologic and clinical characteristics of severe burn patients: results of a retrospective multicenter study in China, 2011-2015. Burns Trauma. 2018 May 23;6:14. doi: 10.1186/s41038-018-0118-z. eCollection 2018.
citation: Waibel J, Beer K. Ablative fractional laser resurfacing for the treatment of a third-degree burn. J Drugs Dermatol. 2009 Mar;8(3):294-7.
citation: Kwan JM, Wyatt M, Uebelhoer NS, Pyo J, Shumaker PR. Functional improvement after ablative fractional laser treatment of a scar contracture. PM R. 2011 Oct;3(10):986-7. doi: 10.1016/j.pmrj.2011.07.007. No abstract available.
citation: Kineston D, Kwan JM, Uebelhoer NS, Shumaker PR. Use of a fractional ablative 10.6-mum carbon dioxide laser in the treatment of a morphea-related contracture. Arch Dermatol. 2011 Oct;147(10):1148-50. doi: 10.1001/archdermatol.2011.247. No abstract available.
citation: Haedersdal M. Fractional ablative CO(2) laser resurfacing improves a thermal burn scar. J Eur Acad Dermatol Venereol. 2009 Nov;23(11):1340-1. doi: 10.1111/j.1468-3083.2009.03215.x. Epub 2009 Mar 4. No abstract available.
citation: Bowen RE. A novel approach to ablative fractional treatment of mature thermal burn scars. J Drugs Dermatol. 2010 Apr;9(4):389-92.
citation: Tierney EP, Hanke CW. The effect of cold-air anesthesia during fractionated carbon-dioxide laser treatment: Prospective study and review of the literature. J Am Acad Dermatol. 2012 Sep;67(3):436-45. doi: 10.1016/j.jaad.2011.01.026. Epub 2012 Jun 12.
citation: Altshuler GB, Zenzie HH, Erofeev AV, Smirnov MZ, Anderson RR, Dierickx C. Contact cooling of the skin. Phys Med Biol. 1999 Apr;44(4):1003-23. doi: 10.1088/0031-9155/44/4/014.
citation: Chess C, Chess Q. Cool laser optics treatment of large telangiectasia of the lower extremities. J Dermatol Surg Oncol. 1993 Jan;19(1):74-80. doi: 10.1111/j.1524-4725.1993.tb03331.x.
citation: Gilchrest BA, Rosen S, Noe JM. Chilling port wine stains improves the response to argon laser therapy. Plast Reconstr Surg. 1982 Feb;69(2):278-83. doi: 10.1097/00006534-198202000-00017.
citation: Kelly KM, Nelson JS, Lask GP, Geronemus RG, Bernstein LJ. Cryogen spray cooling in combination with nonablative laser treatment of facial rhytides. Arch Dermatol. 1999 Jun;135(6):691-4. doi: 10.1001/archderm.135.6.691.
citation: Kim J, Shin W. How to do random allocation (randomization). Clin Orthop Surg. 2014 Mar;6(1):103-9. doi: 10.4055/cios.2014.6.1.103. Epub 2014 Feb 14.
citation: Matias AR, Ferreira M, Costa P, Neto P. Skin colour, skin redness and melanin biometric measurements: comparison study between Antera((R)) 3D, Mexameter((R)) and Colorimeter((R)). Skin Res Technol. 2015 Aug;21(3):346-62. doi: 10.1111/srt.12199. Epub 2015 Feb 3.
citation: Handford C, Buxton P, Russell K, Imray CE, McIntosh SE, Freer L, Cochran A, Imray CH. Frostbite: a practical approach to hospital management. Extrem Physiol Med. 2014 Apr 22;3:7. doi: 10.1186/2046-7648-3-7. eCollection 2014.
citation: McIntosh SE, Opacic M, Freer L, Grissom CK, Auerbach PS, Rodway GW, Cochran A, Giesbrecht GG, McDevitt M, Imray CH, Johnson EL, Dow J, Hackett PH; Wilderness Medical Society. Wilderness Medical Society practice guidelines for the prevention and treatment of frostbite: 2014 update. Wilderness Environ Med. 2014 Dec;25(4 Suppl):S43-54. doi: 10.1016/j.wem.2014.09.001.
citation: Raulin C, Grema H. Single-pass carbon dioxide laser skin resurfacing combined with cold-air cooling: efficacy and patient satisfaction of a prospective side-by-side study. Arch Dermatol. 2004 Nov;140(11):1333-6. doi: 10.1001/archderm.140.11.1333.