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CompletedNCT05458050Updated Aug 25, 2023

An Investigation to Identify Subjects Admitted to Hospital With an Increased Risk of Developing Pressure Ulcers

An interventional study of PU sensor in Pressure Ulcer, sponsored by PU sensor AB. Completed at 3 sites in Sweden. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2023-08-25.

Sponsored by PU sensor AB · Not applicable, Interventional, and Prevention

Phase
Not applicable
Study type
Interventional
Enrollment
433
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Study summary

A double blind, non randomized, multicenter investigation

Read the detailed description

The study consists of 2 evaluations/visits.

Evaluation/visit 1: Takes place in connection with admission to the hospital. Informed consent, inclusion and exclusion criteria are assessed as well as assessment of skin type and inspection of the entire body skin. Pregnancy test on women of childbearing potential, height, weight, blood pressure and body temperature are measured. Questions about demography, health conditions, previous illnesses, nicotine habits. Risk assessment for pressure ulcers (Modified Norton or RAPS-scale) is carried out according to the hospital usual routine. Examination with PU sensor will be performed.

Evaluation/visit 2: Takes place in connection with the discharge from the hospital or 4 weeks after visit 1 if the research subject is still hospitalized. Full body skin inspection to see possible onset of pressure ulcers. Review of the research subject's medical records as well as review of nursing notes from the hospital where the research subject has been discharged from, to find any notes about pressure ulcers. The study participation is then terminated for the research subject.

02

Conditions studied

  • Pressure Ulcer
03

In context

Pressure Ulcer

517 studies on the registry are indexed under Pressure Ulcer; 116 are open to participants now.

This study's enrollment of 433 is above the median of 70 across 394 interventional studies indexed under Pressure Ulcer.

Browse Pressure Ulcer studies →

Lead sponsor

This is the only study on the registry with PU sensor AB as lead sponsor.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  1. Given their written consent to participate in the study
  2. Male or female between ≥18 years and ≤ 64 years with a reduced mobility, where the hospitalization may involve a risk that the person may become less active or Male or female ≥65 years

Exclusion criteria

Exclusion Criteria:

  1. Existing pressure ulcer or damage to the skin around the sacrum where the PU sensor plate and pillow are to be placed
  2. Fever ≥38 ºC, within 30 minutes before the examination with PU sensor
  3. Difficulty lying still in supine position during the examination with PU sensor, which takes 5 to 10 minutes
  4. Known allergy or sensitivity to any of the materials in PU sensor that gets in contact with the skin on the sacrum
  5. Body weight ≥200 kg
  6. Previous participation in the study
  7. Mental inability, or language difficulties that results in difficulty to understand the meaning of participation in the study and / or signing the study consent,
  8. Pregnancy
05

Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
433 participants (actual)

Study arms

  • Other
    PU Sensor examination

    Device:PU Sensor will assess the microcirculation in sacrum with and without pressure (subject will lay on side and after that on back) the total measurement time is 5-10 minutes

    Device: PU sensor

Interventions

  • DevicePU sensor

    Device to assess microcirculation in sacrum area to find subjects at risk for pressure ulcer

06

What researchers measure

Primary outcomes

  1. Number of pressure ulcers developed between visit 1 and 2

    This outcome is to evaluate if the subjects that have been assessed as at risk of developing pressure ulcers (using PU sensor) have actually developed pressure ulcers with a greater probability than those assessed as not at risk

    Time frame: Up to 4 weeks

Secondary outcomes

  1. Incidence of adverse events (AEs) and adverse device effects (ADEs)

    All adverse events (AEs) and adverse device effects (ADEs) incidence and severity following measurement with PU sensor up to 2 days after the baseline

    Time frame: Up to 2 days

Other outcomes

  1. Proportion of pressure ulcers located in sacrum

    The examination with PU sensor is in sacrum. Proportion of pressure ulcers that are located in sacrum for PU sensor high-risk group compared to PU sensor low-risk group. PU sensor high-risk group are those subjects who have a decreased blood flow at pressure from their own body, resulting in a "High risk" result from PU sensor. This proportion is compared for the two groups to evaluate if PU sensor can assess risk of pressure ulcers on the skin everywhere, or only in sacrum where the examination is done.

    Time frame: Up to 4 weeks

  2. Combine Norton/RAPS with PU Sensor results

    All subject will use Norton or RAPS for risk assessment of pressure ulcer. The results from these risk assessments will be compared with the results from PU Sensor and pressure ulcers developed to explore if a combination of the scales and PU sensor would give a better view of subjects at risk.

    Time frame: Up tp 4 weeks

  3. Compare PU sensor examinations for different skin types

    PU sensor is using PPG (Photoplethysmography) to assess blood flow in sacrum. Since light is used the the skin type (amount of pigment and in the skin etc) may affect the examination.

    Time frame: Up to 4 weeks

  4. Compare PU sensor examinations for subjects with underlying disease

    PU sensor is using PPG (Photoplethysmography) to assess blood flow in sacrum. Underlying diseases such as Hypertension and/or Diabetes may affect the examination.

    Time frame: Up to 4 weeks

07

Study locations

3 sites
  • Länssjukhuset Ryhov, Geriatriska kliniken
    Jönköping, 55185, Sweden
  • Oskarhamns Sjukhus
    Oskarshamn, 57251, Sweden
  • Medicin-Geriatriska kliniken Akademiska sjukhuset,
    Uppsala, 75185, Sweden
08

References and documents

Individual participant data

Plan to share: No — Due to uncertainties in EU data protection legislation individual deidentified participant data are not shared. The main uncertainty is the concept of what "deidentified" means. It appears not to mean that the data set of a person is simply separated from the person's name. What additional operations have to be done appears to depend on technological capabilities to re-identify the persons associated with the data set. A common perception is that the technological capabilities for re-identification are permanently increasing. This could have the effect that public data sets that are regarded as deidentified now might become re-identifiable data sets in the future. Once this happens, the sponsor is no longer able to make the publication of the data sets un-happen. This could result in punishment by EU data protection authorities. The sponsor wants to avoid this.

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 25, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05458050
Lead sponsor
PU sensor AB
Collaborators
Scandinavian CRO
Responsible party
Sponsor
First posted
Jul 14, 2022
Start date
Sep 1, 2022
Primary completion
Jun 30, 2023
Completion
Aug 24, 2023
Last update
Aug 25, 2023

Study contacts

Anna-Christina Ek, RN,PhD
study chair · PU Sensor

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Aug 2023. You cannot join it, but the record below documents what was studied.

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