Analytical comparison of a new PSA testing method to the gold standard laboratory testing method in blood samples taken in a community setting

ISRCTN ISRCTN11062219
DOI https://doi.org/10.1186/ISRCTN11062219
Integrated Research Application System (IRAS) 369530
Sponsor EDX Medical
Funder EDX Medical
Submission date
25/08/2026
Registration date
26/08/2026
Last edited
26/08/2026
Recruitment status
Recruiting
Overall study status
Ongoing
Condition category
Cancer
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Background and study aims
Prostate specific antigen (PSA) is a protein that can be measured in the blood. PSA testing is commonly used to help identify men who may need further investigation for prostate problems.

At present, PSA tests are usually carried out by sending a blood sample to a laboratory. This process can take time and requires access to healthcare services. EDX Medical Limited has developed a new rapid testing system that is designed to measure PSA and other related biomarkers closer to where people live and work. The test can be used by trained healthcare professionals in community settings such as sports clubs, social clubs and workplaces.

The aim of this study is to find out how closely the new testing system agrees with standard laboratory PSA testing. The study will also assess whether smaller blood samples collected using capillary blood collection devices provide results that are comparable to traditional blood samples taken from a vein. In addition, researchers will evaluate how easy the new system is for healthcare professionals to use in real-world community settings.

Who can participate?
Up to 2,000 men aged 40 to 79 years may take part.

Participants must be attending a community-based PSA testing event organised by charitable organisations. These events take place in local community settings such as sports clubs, social clubs and workplaces.

What does the study involve?
Participants will already be having a blood sample taken as part of routine PSA testing.

During the same visit, an additional small blood sample of approximately one teaspoon may be collected for the study. Some participants may also be asked to provide a capillary blood sample using a blood collection device placed on the upper arm.

The blood samples will be tested using both the new rapid testing system and the standard laboratory method. Researchers will compare the results from the two methods to see how closely they match.

Participants only need to attend one study visit. Information related to the study may continue to be collected for up to one month after participation.

What are the possible benefits and risks of participating?
Participants may not receive any direct medical benefit from taking part. However, the information collected could help researchers develop more accessible community-based PSA testing services in the future.

The risks of taking part are considered low. Blood sampling may cause temporary discomfort, mild pain, bruising or light-headedness. These effects are usually short-lived. People who are uncomfortable with needles may experience these effects more strongly.

For participants who provide a capillary blood sample using the upper arm collection device, there may be mild skin irritation, temporary marks or minor bruising where the device is applied.

No additional visits are required beyond the community testing event.

Where is the study run from?
The study will take place at community-based PSA testing events organised by charitable organisations. These events are held in locations such as sports clubs, social clubs and workplaces where men in the target age range regularly attend.

When is the study starting and how long is it expected to run for?
August 2026 to August 2028.

Who is funding the study?
The study is sponsored and funded by EDX Medical Limited (UK).

Who is the main contact?
EDX Medical Limited, contact@edxmedical.com
The Scottish Prostate Cancer Initiative can also be contacted for information:
info@scottishprostate.com
https://www.scottishprostate.com/

Contact information

Dr Guy Mozolowski
Scientific, Public

211 Cambridge Science Park
Milton Rd
Cambridge
CB4 0WA
United Kingdom

ORCiD logoORCID ID 0000-0001-9942-1611
Phone +44 7460816732
Email contact@edxmedical.com
Dr Anand Sharma
Principal investigator

Mount Vernon Cancer Centre, Rickmansworth Road
Northwood
HA6 2RN
United Kingdom

Phone +44 2038262510
Email contact@edxmedical.com

Study information

Primary study designObservational
Observational study designCohort study
Participant information sheet 50150 EPPOCH PIS v0.2 18May2026.pdf
Scientific titleAnalytical comparison of a point-of-care prostate specific antigen (PSA) assay system with laboratory-based reference methods in a community setting (EDX Prostate Point Of Care Holism)
Study acronymEPPOCH
Study objectives Primary objectives:
1. To assess the analytical agreement between a quantitative point-of-care (qPoC) PSA assay system and established laboratory-based reference methods using blood samples collected in a community-based cohort
2. To compare the equivalence of non-venipuncture and venous blood sample collection methods for PSA measurement using both the qPoC assay system and laboratory-based reference methods

Secondary objectives:
1. To evaluate participant acceptability of non-venipuncture blood collection methods in a community setting
2. To assess user (healthcare professional) usability of the qPoC assay system and associated sampling device in a community setting
3. To assess the precision and reproducibility of the qPoC assay system when used in a community setting
4. To enable exploratory analysis of blood-based biomarker measurements using stored samples, where consent is provided
Ethics approval(s)

Approved 20/05/2026, West of Scotland REC 3 (West of Scotland Research Ethics Service, Admin Building, Level 2, Gartnavel Royal Hospital, 1055 Great Western Rd, Glasgow, G12 XH, United Kingdom; no telephone number provided; ggc.WoSREC3@nhs.scot), ref: 26/WS/0068

Health condition(s) or problem(s) studiedProstate specific antigen assay
MethodologyMulti-centre, observational study involving analytical comparison and usability assessment of a quantitative point-of-care (qPoC) PSA assay system in a community setting.

Analytical comparison:
Assess the agreement between measurements obtained from a quantitative point-of-care PSA assay system and those obtained using established laboratory-based reference methods, using blood samples collected from participants in a community setting.

Sampling method comparison:
Compare PSA measurements obtained from non-venipuncture blood collection methods with those obtained via standard venous sampling, across both qPoC and laboratory-based methods.

Usability and acceptability assessments:
Evaluate the usability of the qPoC assay system and its associated sampling device when used by healthcare professionals in community settings, and to assess participant acceptability of different blood sampling methods.

Participants in this study will be men aged 40–79 years who are already attending a community-based PSA testing event. These events take place in local settings such as sports clubs, workplaces, or community venues. When booking their PSA test, individuals will be given information about the study and invited to take part. Those who agree will provide electronic consent before attending their appointment. At the testing event, participants will have a standard blood sample taken as part of routine PSA testing. If they take part in the study, an additional small blood sample (approximately one teaspoon, around 5 mL) will be collected at the same time. Some participants may also be asked to provide a small capillary blood sample (approximately 1 mL) using a device applied to the upper arm. The additional sample will be tested using a new testing method, while the routine sample will be tested in a laboratory as normal. The results from the two methods will later be compared, but only the laboratory result will be used for any clinical follow-up as part of the community testing event. Participants will only attend one visit, and no extra appointments are required. Some participants may be asked to complete a short questionnaire about their experience. Basic study information may be collected for up to one month after the visit.
Intervention typeDevice
PhaseNot Applicable
Drug / device / biological / vaccine name(s)EDX
Primary outcome measure(s)
  1. Measures of analytical agreement between the qPoC PSA assay system and laboratory-based reference methods across the study cohort measured using PSA values (ng/ml),correlation coefficients, bland altman analysis, trueness, repeatability, reproducibility, and linearity at baseline
  2. Measures of analytical agreement between the non-venipuncture and traditional venipuncture sampling methods established using both the qPoC PSA assay system and laboratory-based reference methods across the study cohort measured using PSA values (ng/ml), correlation coefficients, bland altman analysis, trueness, repeatability, reproducibility, and linearity at baseline
Key secondary outcome measure(s)
  1. Patient acceptability and usability data on the test device and ancillary sampling device measured using quantitative and qualitative survey data at baseline
  2. User acceptability and usability data on the test device, system and ancillaries measured using quantitative and qualitative survey data at baseline
  3. Identification and capture of usability and acceptability issues measured using quantitative and qualitative survey data at baseline
Completion date28/08/2028

Eligibility

Participant type(s)
Age groupMixed
Lower age limit40 Years
Upper age limit79 Years
SexMale
Target sample size at registration2000
Key inclusion criteria1. Individuals who are biologically male at birth
2. Aged 40 to 79 years of age at the time of consent
3. Individuals attending community-based PSA testing programmes
4. Individuals who are able and willing to provide written informed consent prior to any study-related procedures
Key exclusion criteria1. Individuals who are biologically female at birth
2. Individuals with a known diagnosis of prostate cancer currently undergoing active treatment
3. Individuals who have previously undergone surgical treatment of the prostate, including radical prostatectomy
4. Individuals with a known absence of the prostate, whether congenital or surgical
Date of first enrolment28/08/2026
Date of final enrolment30/12/2026

Locations

Countries of recruitment

  • United Kingdom
  • England
  • Scotland

Study participating centres

SPCI
18 Woodside Place
Glasgow
G3 7QL
Scotland
GFCT
66b Smith Street
Warwick
CV34 4HU
England

Results and Publications

Individual participant data (IPD) Intention to shareNo

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Participant information sheet version 0.2 18/05/2026 26/08/2026 No Yes

Additional files

50150 EPPOCH PIS v0.2 18May2026.pdf
Participant information sheet

Editorial Notes

26/08/2026: Trial's existence confirmed by West of Scotland REC 3.