An interventional study of Best Practice and Educational Intervention in Skin Carcinoma, sponsored by Jonsson Comprehensive Cancer Center. Not yet recruiting at 1 site in United States. Open to participants aged 19 Years to 79 Years. Per ClinicalTrials.gov, last updated 2026-07-01.
Sponsored by Jonsson Comprehensive Cancer Center · Not applicable, Interventional, and Supportive care
This clinical trial studies whether a disposable negative pressure wound therapy (dNPWT) device, SNaP Wound Care System (Ultraportable Mechanically Powered Negative Pressure Wound Therapy) (SNaP), promotes wound healing in the lower limbs in patients that have undergone Mohs micrographic surgery (Mohs surgery) for non-melanoma skin cancer. Mohs surgery is a surgical technique used to treat skin cancer. Individual layers of cancerous tissue are removed and examined under a microscope one at a time until all cancerous tissue has been removed. It is an important part of removing skin cancer, but it often leads to soft-tissue defects and reconstructive challenges, especially in high-tension areas like the lower limbs. Typically, these wounds are managed by leaving them open and allowing them to heal from the base up or are reconstructed by transferring healthy skin from another part of the body. Negative pressure wound therapy (NPWT) is a wound dressing system that continuously or intermittently applies subatmospheric pressure to the surface of a wound to draw out fluid and promote healing. The SNaP device is a dNPWT device for lower leg wound healing designed for increased portability and ease of use outside of a hospital setting. It is a modification of traditional NPWT devices that uses springs to generate pressure, making it lighter and more user-friendly than traditional devices that rely on electrically powered pumps. This may be a more effective way to promote wound healing in the lower limbs following Mohs surgery for non-melanoma skin cancer.
PRIMARY OBJECTIVE:
I. To compare wound healing duration between the two groups, aiming to provide insights into the potential benefits of dNPWT for lower limb wounds in a clinical setting.
OUTLINE: Patients are randomized to 1 of 2 groups.
GROUP 1: Patients undergo dNPWT with SNaP device following standard of care (SOC) Mohs surgery and attend follow-up visits with re-application of SNaP device over 30 minutes once a week (QW), as needed until complete wound healing is achieved, for up to 12 weeks. Patients also receive education regarding SNaP device application and informational/educational SNaP device handouts on study.
GROUP 2: Patients undergo SOC wound care with non-adherent dressing following SOC Mohs surgery and attend follow-up visits with non-adherent dressing changes over 30 minutes QW, as needed until complete wound healing is achieved, for up to 12 weeks. Patients also receive education on SOC wound dressing changes on study.
After completion of study intervention, patients are followed up at week 12.
Jonsson Comprehensive Cancer Center is the lead sponsor of 396 studies on the registry; 67 are open to participants now.
Of its 37 completed or terminated interventional studies of FDA-regulated products, 2 (5%) have results posted.
Counted across the registry records on this site, refreshed daily.
Exclusion Criteria:
Patients undergo dNPWT with SNaP device following SOC Mohs surgery and attend follow-up visits with re-application of SNaP device over 30 minutes QW, as needed until complete wound healing is achieved, for up to 12 weeks. Patients also receive education regarding SNaP device application and informational/educational SNaP device handouts on study.
Other: Educational Intervention · Other: Electronic Health Record Review · Other: Follow-Up Care · Other: Medical Device Usage and Evaluation · Procedure: Negative Pressure Wound Therapy · Other: Photography · Other: Questionnaire Administration
Patients undergo SOC wound care with non-adherent dressing following SOC Mohs surgery and attend follow-up visits with non-adherent dressing changes over 30 minutes QW, as needed until complete wound healing is achieved, for up to 12 weeks. Patients also receive education on SOC wound dressing changes on study.
Other: Best Practice · Other: Educational Intervention · Other: Electronic Health Record Review · Other: Follow-Up Care · Other: Photography · Other: Questionnaire Administration
Undergo SOC non-adherent dressing wound care
Also known as: standard of care, standard therapy
Receive SNaP education
Also known as: Education for Intervention, Intervention by Education, Intervention through Education, Intervention, Educational
Receive SOC wound care education
Also known as: Education for Intervention, Intervention by Education, Intervention through Education, Intervention, Educational
Ancillary studies
Attend SNaP device follow-up visits
Attend SOC wound care follow-up visits
Undergo dNPWT with SNaP device
Undergo dNPWT with SNaP device
Also known as: NPWT, Vacuum-Assisted Wound Closure
Ancillary studies
Ancillary studies
Wound healing duration
Will be defined as the number of days from surgery to complete wound closure (full re-epithelialization), assessed during follow-up visits. Will be analyzed as a time-to-event variable. To compare the time to wound closure between the SNaP Wound Care System (Ultraportable Mechanically Powered Negative Pressure Wound Therapy) (SNaP) device and standard care groups, Kaplan-Meier survival curves will be generated, which will visually illustrate whether the SNaP device accelerates wound healing. The log-rank test will be used to formally assess whether the difference in healing times between the two groups is statistically significant or if any differences observed could have arisen by random chance. Additionally, a Multivariable Cox proportional hazards model will be employed to adjust for potential confounders (e.g., wound size, patient age, and comorbidities).
Time frame: Up to 12 weeks
Mean time to wound closure
Among patients who achieve full healing, the mean time to wound closure will be compared between the SNaP device and standard care groups. If the data are normally distributed, an independent two-sample t-test will be used; otherwise, a Mann-Whitney U test will be applied.
Time frame: Up to 12 weeks
Patient satisfaction
Patient satisfaction will be assessed using standardized questionnaires and analyzed with t-tests or chi-square tests to compare satisfaction levels between the SNaP device and standard care groups. Effect sizes and 95% confidence intervals will be reported to quantify the magnitude of treatment effects for all secondary outcomes.
Time frame: At 12 weeks
Wound size progression
Wound size progression will be monitored over time and analyzed with repeated measures analysis of variance to assess changes within subjects. Effect sizes and 95% confidence intervals will be reported to quantify the magnitude of treatment effects for all secondary outcomes.
Time frame: Up to 12 weeks
Cosmetic outcomes
Cosmetic outcomes, particularly scar appearance, will be evaluated using the Patient and Observer Scar and Assessment Scale 3.0, with mixed-effects models applied to account for patient variability and treatment effects. Furthermore, a multivariate analysis will be conducted to examine the combined effects of the SNaP device on both wound closure and cosmetic outcomes while adjusting for confounders such as age, comorbidities, and wound size. Effect sizes and 95% confidence intervals will be reported to quantify the magnitude of treatment effects for all secondary outcomes.
Time frame: At 12 weeks
This study is not yet recruiting, as verified in Apr 2026. You cannot join it, but the record below documents what was studied.
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Jonsson Comprehensive Cancer Center