Intermittent Negative Pressure for Patients With Diabetic Foot Ulcers (INPRESS) Study

NCT ID: NCT07291817

Last Updated: 2025-12-18

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

30 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-11-03

Study Completion Date

2026-11-02

Brief Summary

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The aim of this trial is to investigate the safety and efficacy of 12 weeks treatment with FlowOx, for 1 hour twice daily, when used on patients with diabetic foot ulcers. The main question it aims to answer is whether treatment with FlowOx one hour in the morning and one hour in the evening for 12 weeks can improve toe arterial pressure and wound surface area compared to baseline.

Participants will have baseline assessments (i.e. toe pressure measurement and wound area measurement) performed on them and training on the use of FlowOx device will be provided to them in Visit 1. Participants will be tasked to use the FlowOx device (device will be loaned to them) for 1 hour twice daily. A phone call will be conducted 1 week after Visit 1 to follow up on the medical and user-related issues. At Week 6 (Visit 2), participants will be asked to come back for toe pressure and wound area measurement. At Week 12 (Visit 3), end of treatment assessments (i.e toe pressure and wound area measurement) will be performed. Compliance data will be acquired from the FlowOx device.

Their participation in the study will last for 12 weeks. Participants will be asked to use the FlowOx device for one hour, two times a day throughout the study period. They will need to visit the clinic 3 times in the course of the study.

Detailed Description

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Conditions

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Diabetic Foot Ulcer

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

OTHER

Blinding Strategy

NONE

Study Groups

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Treatment with FlowOx

Group Type EXPERIMENTAL

FlowOx

Intervention Type DEVICE

12 weeks treatment with FlowOx for 1 hour twice daily for 12 weeks

Interventions

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FlowOx

12 weeks treatment with FlowOx for 1 hour twice daily for 12 weeks

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

1. Provision of signed and dated informed consent form
2. Stated willingness to comply with all study procedures and availability for the duration of the study
3. Male or female, aged 21-99.
4. Diagnosed with diabetes mellitus.
5. Toe systolic pressure \<70 mmHg on the leg to be treated (after revascularization)
6. Open chronic wound on the foot
7. Ability to operate the treatment device, and willing to adhere to the study intervention regimen.
8. Suitable for diabetic limb salvage

Exclusion Criteria

1. Known allergic reactions to components of the INP device.
2. Treatment with another investigational intervention within the last 12 weeks prior to inclusion.
3. Pregnant women or cognitively impaired participants.
Minimum Eligible Age

21 Years

Maximum Eligible Age

99 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Otivio AS

INDUSTRY

Sponsor Role collaborator

Lo Zhiwen Joseph

OTHER_GOV

Sponsor Role lead

Responsible Party

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Lo Zhiwen Joseph

Senior Consultant

Responsibility Role SPONSOR_INVESTIGATOR

Principal Investigators

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Zhiwen Joseph Lo

Role: PRINCIPAL_INVESTIGATOR

Woodlands Health

Locations

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Woodlands Health

Singapore, , Singapore

Site Status RECRUITING

Countries

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Singapore

Facility Contacts

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Zhiwen Joseph Lo

Role: primary

References

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Yagshyyev S, Hausmann P, Li Y, Kempf J, Zetzmann K, Dessi K, Moosmann O, Almasi-Sperling V, Meyer A, Gerken ALH, Lang W, Rother U. Intermittent negative pressure therapy in patients with no-option chronic limb-threatening ischemia. Vasa. 2023 Nov;52(6):402-408. doi: 10.1024/0301-1526/a001098. Epub 2023 Oct 17.

Reference Type BACKGROUND
PMID: 37847243 (View on PubMed)

Herrmann LG, Reid MR. THE CONSERVATIVE TREATMENT OF ARTERIOSCLEROTIC PERIPHERAL VASCULAR DISEASES: PASSIVE VASCULAR EXERCISES (PAVAEX THERAPY). Ann Surg. 1934 Oct;100(4):750-60. doi: 10.1097/00000658-193410000-00016. No abstract available.

Reference Type BACKGROUND
PMID: 17856393 (View on PubMed)

Landis E.M HLH. The clinical value of alternate suction and pressure in the treatment of advanced peripheral vascular disease. The American Journal of the Medical Sciences. 1935;189(3):20.

Reference Type BACKGROUND

Sinkowitz S, Gottlieb I. Thrombo-angiitis obliterans the conservative treatment by Bier's hyperemia suction apparatus. JAMA.1917;LXVIII(13):961-963.

Reference Type BACKGROUND

Sundby OH, Hoiseth LO, Mathiesen I, Jorgensen JJ, Sundhagen JO, Hisdal J. The effects of intermittent negative pressure on the lower extremities' peripheral circulation and wound healing in four patients with lower limb ischemia and hard-to-heal leg ulcers: a case report. Physiol Rep. 2016 Oct;4(20):e12998. doi: 10.14814/phy2.12998.

Reference Type BACKGROUND
PMID: 27798353 (View on PubMed)

Sundby OH, Irgens I, Hoiseth LO, Mathiesen I, Lundgaard E, Haugland H, Weedon-Fekjaer H, Sundhagen JO, Sandbaek G, Hisdal J. Intermittent mild negative pressure applied to the lower limb in patients with spinal cord injury and chronic lower limb ulcers: a crossover pilot study. Spinal Cord. 2018 Apr;56(4):372-381. doi: 10.1038/s41393-018-0080-4. Epub 2018 Mar 1.

Reference Type BACKGROUND
PMID: 29497177 (View on PubMed)

Hoel H, Pettersen EM, Hoiseth LO, Mathiesen I, Seternes A, Hisdal J. A randomized controlled trial of treatment with intermittent negative pressure for intermittent claudication. J Vasc Surg. 2021 May;73(5):1750-1758.e1. doi: 10.1016/j.jvs.2020.10.024. Epub 2020 Oct 22.

Reference Type BACKGROUND
PMID: 33899743 (View on PubMed)

Sundby OH, Hoiseth LO, Mathiesen I, Weedon-Fekjaer H, Sundhagen JO, Hisdal J. The acute effects of lower limb intermittent negative pressure on foot macro- and microcirculation in patients with peripheral arterial disease. PLoS One. 2017 Jun 7;12(6):e0179001. doi: 10.1371/journal.pone.0179001. eCollection 2017.

Reference Type BACKGROUND
PMID: 28591174 (View on PubMed)

Hoel H, Hoiseth LO, Sandbaek G, Sundhagen JO, Mathiesen I, Hisdal J. The acute effects of different levels of intermittent negative pressure on peripheral circulation in patients with peripheral artery disease. Physiol Rep. 2019 Oct;7(20):e14241. doi: 10.14814/phy2.14241.

Reference Type BACKGROUND
PMID: 31631579 (View on PubMed)

Prompers L, Huijberts M, Apelqvist J, Jude E, Piaggesi A, Bakker K, Edmonds M, Holstein P, Jirkovska A, Mauricio D, Ragnarson Tennvall G, Reike H, Spraul M, Uccioli L, Urbancic V, Van Acker K, van Baal J, van Merode F, Schaper N. High prevalence of ischaemia, infection and serious comorbidity in patients with diabetic foot disease in Europe. Baseline results from the Eurodiale study. Diabetologia. 2007 Jan;50(1):18-25. doi: 10.1007/s00125-006-0491-1. Epub 2006 Nov 9.

Reference Type BACKGROUND
PMID: 17093942 (View on PubMed)

Petersen BJ, Linde-Zwirble WT, Tan TW, Rothenberg GM, Salgado SJ, Bloom JD, Armstrong DG. Higher rates of all-cause mortality and resource utilization during episodes-of-care for diabetic foot ulceration. Diabetes Res Clin Pract. 2022 Feb;184:109182. doi: 10.1016/j.diabres.2021.109182. Epub 2022 Jan 18.

Reference Type BACKGROUND
PMID: 35063288 (View on PubMed)

Armstrong DG, Boulton AJM, Bus SA. Diabetic Foot Ulcers and Their Recurrence. N Engl J Med. 2017 Jun 15;376(24):2367-2375. doi: 10.1056/NEJMra1615439. No abstract available.

Reference Type BACKGROUND
PMID: 28614678 (View on PubMed)

Zhang Y, Lazzarini PA, McPhail SM, van Netten JJ, Armstrong DG, Pacella RE. Global Disability Burdens of Diabetes-Related Lower-Extremity Complications in 1990 and 2016. Diabetes Care. 2020 May;43(5):964-974. doi: 10.2337/dc19-1614. Epub 2020 Mar 5.

Reference Type BACKGROUND
PMID: 32139380 (View on PubMed)

Other Identifiers

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2024-4641

Identifier Type: -

Identifier Source: org_study_id