Micro/Nanobubbles (MNBs) for Treatment of Acute and Chronic Wounds

Last updated: September 26, 2025
Sponsor: University of California, Irvine
Overall Status: Active - Recruiting

Phase

1

Condition

N/A

Treatment

Micro/nanobubble (MNB) - Irrigation

Micro/nanobubble (MNB) - Negative Pressure Wound Therapy with Instillation (NPWTi)

0.9% Normal Saline - Negative Pressure Wound Therapy with Instillation (NPWTi)

Clinical Study ID

NCT05169814
5901
154138
  • Ages > 18
  • All Genders

Study Summary

The purpose of this study is to assess the safety and efficacy of Micro/nanobubbles (MNB's) for the healing of acute and chronic wounds.

Eligibility Criteria

Inclusion

Inclusion Criteria:

  • are above the age of 18.

  • have traumatic, surgical, or chronic wounds.

  • have radiotherapy related tissue injury.

  • have thermal, chemical, and/or electrical burn injuries.

  • have pressure ulcers, diabetic foot ulcers, venous ulcers, arterial ulcers, and/orneuropathic skin ulcers.

  • have acute ischemic wounds

Exclusion

Exclusion Criteria:

  • have infected wounds.

  • have wounds with exposed vital structures such as nerves, arteries, and/or veins.

  • have wounds associated with malignancy.

Study Design

Total Participants: 40
Treatment Group(s): 4
Primary Treatment: Micro/nanobubble (MNB) - Irrigation
Phase: 1
Study Start date:
October 09, 2021
Estimated Completion Date:
June 01, 2027

Study Description

Oxygen delivery is one of the primary factors in wound healing. Micro/nanobubbles (MNBs) can be used to increase the oxygen dissolved in solution and increase oxygen delivery to a wound. The purpose of this research study is to determine if MNBs applied to a wound improve wound healing.

After being informed about the study and potential risks, all patients will need to provide written informed consent before being included in the study. The characteristics of the wound will be assessed and measurements will be taken before and after treatment. Depending on the patient's wound type, the patient will be treated with MNBs in saline gauze which will be applied to the wound daily (for acute wounds), or MNBs in negative pressure wound therapy with instillation (NPWTi) (for chronic wounds) which will be applied to the wound continuously throughout the day with the wound evaluated and sponge replaced every 3-5 days. This is consistent with the current standard of wound care with gauze or NPWTi. Tissue oxygenation using infrared technology and wound healing will be measured and results collected for analysis.

Participation will last approximately 2-4 weeks or the duration of the inpatient admission. If discharge from the hospital is earlier than 2 weeks, the treatment will be discontinued and results will be submitted for analysis.

Connect with a study center

  • UCI Medical Center

    Orange, California 92868
    United States

    Site Not Available

  • UCI Medical Center

    Orange 5379513, California 5332921 92868
    United States

    Active - Recruiting

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