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Terahertz Metamaterials for Tumour Marker Concentration Identification

Terahertz Metamaterials for Tumour Marker Concentration Identification

Status
Suspended
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT04125524
Enrollment
90
Registered
2019-10-14
Start date
2021-05-17
Completion date
2025-10-01
Last updated
2023-11-01

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

Conditions

Malignant Tumour

Keywords

Tumour markers

Brief summary

The research the investigators plan to undertake involves the use of a metamaterial at terahertz frequencies. Serum samples will be tested using the metamaterial to determine if this method can be used to measure the concentration of tumour markers present in the sample. Patients who have been tested for CEA, LDH, CA-125, CA 19-9, CA 15-3, total-hCG and AFP will be used for both the positive and negative samples.

Detailed description

The research the investigators plan to undertake involves the use of a paper substrate with a gold metamaterial on top or a plastic substrate with gold metamaterial on top in physical contact with paper. The metamaterial has an absorption peak within the terahertz frequency range to be investigated (0.75 - 1.1THz). The serum samples will be soaked into the paper fibres which will shift the absorption peak within the terahertz frequency range dependent on the concentration of tumour markers present in the sample. The serum samples will be surplus from samples tested for CEA, LDH, CA-125, CA 19-9, CA 15-3, total-hCG and AFP at the Durham and Darlington NHS Fondation Trust. The samples will be anonymised with the exception of which tumour marker they were tested for and the level measured. There will be two stages to this research project the initial stage requires 15 samples per proposed marker including 15 samples (across all markers) for negative results. This will be used to identify suitable markers to consider for the second stage. Where 50 to 90 samples of each qualifying marker will be tested dependent on the number required for statistical confidence in stage two with 10 to 18 negative samples required for each qualifying marker, again dependent on the statistical requirements for each marker.

Interventions

DIAGNOSTIC_TESTTerahertz metamaterials

A diagnostic test used to identify specific tumour markers will be carried out on serum samples using terahertz metamaterials.

Sponsors

County Durham and Darlington NHS Foundation Trust
CollaboratorOTHER_GOV
Durham University
Lead SponsorOTHER

Study design

Observational model
OTHER
Time perspective
CROSS_SECTIONAL

Eligibility

Sex/Gender
ALL
Age
18 Years to 100 Years
Healthy volunteers
No

Inclusion criteria

* Any patient recommended by their health professional to be tested for any of the tumour markers being studied at County Durham and Darlington NHS Foundation Trust for any reason.

Exclusion criteria

* Patients with known bloodborne pathogens.

Design outcomes

Primary

MeasureTime frameDescription
Evidence of detection for any marker18 monthsAny correlation showing a difference between samples with marker concentrations above and below the standard threshold values used for tests within the NHS.

Secondary

MeasureTime frameDescription
Quantifying the quality of detection per marker18 monthsPercentage of detectable samples for each specific marker which showed any evidence of detection in outcome 1.

Countries

United Kingdom

Outcome results

None listed

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