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Exploring the Effectiveness of Unpowered Negative Pressure Wound Therapy

Exploring the Effectiveness of Unpowered Negative Pressure Wound Therapy: a Randomized Controlled Trial

Status
Not yet recruiting
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06911307
Acronym
NPWT
Enrollment
160
Registered
2025-04-04
Start date
2025-05-01
Completion date
2026-03-31
Last updated
2025-04-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Chronic Wound, Acute Wound

Keywords

Negative Pressure Wound Therapy;, wound care, randomized controlled trial

Brief summary

The aim of this study is to investigate the effectiveness of Non-powered Negative Pressure Wound Therapy (NPWT) on the healing of abdominal surgical wounds. It is designed as a randomized controlled trial with an experimental group (using NPWT) and a control group (conventional wound care). The study aims to recruit 160 participants: 80 with acute wounds and 80 with chronic wounds. Participants will be randomly assigned to either the experimental group (40 acute wounds, 40 chronic wounds) or the control group (40 acute wounds, 40 chronic wounds). The study will assess wound healing rates and speed, quality of life, self-perceived health status, pain levels, complications, and wound care costs using indicators. Effectiveness will be analyzed using Generalized Estimating Equations (GEE). The study anticipates that results will contribute to evaluating the effects of Non-powered NPWT on wound healing, quality of life, pain, and cost-effectiveness in patients with acute and chronic wounds.

Interventions

The standard care (SC) group will also include 80 participants. Wounds will be cleansed with sterile normal saline and managed using conventional wound care techniques. Participants will undergo regular postoperative follow-ups to assess wound healing progression and secondary outcome measures.

OTHERNPWT

The NPWT group will also include 80 participants. Wounds will be cleansed with sterile normal saline and coverd the SIMO NPWT dressing. Participants will undergo regular postoperative follow-ups to assess wound healing progression and secondary outcome measures.

Sponsors

BenQ Materials Corporation
CollaboratorINDUSTRY
Taipei Medical University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Patients with acute wounds (wound duration \<4 weeks) or chronic wounds (wound duration ≥4 weeks). 2. Wound depth \<2 cm. 3. Age ≥18 years. 4. Patients who have been evaluated and approved for participation by their attending physician.

Exclusion criteria

1. Patients with unstable vital signs. 2. Presence of ischemia in the wound or surrounding tissues. 3. Fragile skin around the wound. 4. Severe wound infection or necrotic tissue. 5. Wound size \>10 × 20 cm.

Design outcomes

Primary

MeasureTime frameDescription
wound healing90days1. Wound size will be measured before and after the intervention, using a ruler and photographic records. 2. The occurrence and time of healing events will be documented. The modified TIME-H score will be used as the evaluation tool. This scoring system includes four main indicators: T (Tissue)、I (Infection)、M (Moisture)、E (Edge)、H (Healing).

Secondary

MeasureTime frameDescription
Wound-related Quality of Life90daysThe Wound-QoL-17 questionnaire will be used before and after the intervention to assess the quality of life related to the wound. The Wound-QoL-17 consists of 17 items across three domains: Physical, Psychological, and Daily Life. The responses are based on a 5-point Likert scale, where a higher score indicates poorer quality of life. The Cronbach's α for the original Wound-QoL-17 ranges from 0.71 to 0.916, while for the Chinese version, it ranges from 0.71 to 0.93, indicating good internal consistency (Cronbach's alpha).
Self-reported Health Status90daysThe PHQ-9 (Patient Health Questionnaire-9) will be used before and after the intervention to screen for and track symptoms of depression. The PHQ-9 consists of 9 questions, each evaluating depressive symptoms over the past two weeks. Responses are rated from not at all to nearly every day, with the frequency of responses used to assess the severity of depression.
Length of Hospital Stay for wound treatment90daysThe number of days participants are hospitalized during the enrollment and follow-up periods due to their wound will be recorded.
Pain Assessment90daysPain quality will be evaluated before and after the intervention using the Numeric Rating Scale (NRS), where 0 represents no pain and 10 represents the worst possible pain. The pain index will be recorded, and the type, frequency, and dosage of pain medication used during the enrollment process will be documented.
Complications and Adverse Events90daysThe following will be monitored: Surgical Site Infection (SSI)、Wound dehiscence、Allergic reactions、Wound infection、Hematoma、Inflammation、Bleeding.
Adhesion Issues for Dressing90daysThis will include incidents of unintended dressing detachment, skin tear during dressing removal, and the methods of enhanced dressing fixation during treatment.
Mortality Events90daysThe cause and time of death for participants during the enrollment and follow-up periods will be recorded.
Cost Analysis90daysThe cost of wound treatment during the enrollment and follow-up periods will be assessed, including: Direct wound dressing costs、Wound care technique fees、Wound-related surgery costs、Wound-related medication usage、Outpatient follow-up or dressing change costs.

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026