M5 vs. M6 Comparison Study With a Sub Study Into the Dielectric Constant of Aspirated Cyst Fluid

Micrima

Status: Completed

Conditions: Breast Cancer Female; Breast Cyst

Treatments: Device: MARIA scan

Study type: Interventional

Funder types: Industry

Identifiers

NCT03771833

PROT-P2-024

Details and patient eligibility

About

The MARIA breast imaging system is a Conformité Européenne (CE)-marked radio-frequency (RF) medical imaging device. The system employs an electromagnetic imaging technique that exploits the dielectric contrast between normal and cancerous tissues. The performance and imaging characteristic differences between the M5 and M6 versions of MARIA are not yet well demonstrated in the clinical environment, particularly with regards to cysts. The evaluation of some aspects of this potentially important new technology will occur in this comparative technical study. Further, the dielectric constant of cyst fluid is currently not well understood and obtaining readings from aspirated cyst fluid in applicable patients will be attempted.

Enrollment: 22 patients

Sex: Female

Ages: 18 to 80 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• attending a symptomatic breast care clinic at the study site
• have a palpable lump in the breast
• female sex
• 18 years or older
• able to provide informed consent
• not in any identified vulnerable group

Exclusion criteria

• unable to mount MARIA patient bed using provided 2-step
• unable to lie in the prone position for a period of up to 15 minutes
• patient who have undergone biopsy less than 5 days before the MARIA scan
• patient with implanted electronics
• patient with breast implants
• patients with nipple piercings (unless they are removed prior to the MARIA scan)
• breast size too small or too large to be suitable for both arrays

Further:

• participants with a large cyst or cysts that require draining at their clinical appointment will not be eligible for Arm 1, as the procedure to drain their cyst will change the appearance of the cyst from the imaging that they have done that day to the MARIA image obtained around 10 days later
• Arm 1 and 2 are mutually exclusive

Trial design

Primary purpose: Other

Allocation: Non-Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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22 participants in 2 patient groups

Main MARIA scan visit

Other group

Description:

For Arm 1, participants will be identified in clinic as having a suitable symptomatic breast and approached about the study. They will have the study design explained to them and will be informed that they are under no obligation to participate. Arm 1 participants will receive study information that they will be sent home with and informed that they will be approached via a telephone call in 2-3 days (or the closest working day to that date) to enquire if they would like to schedule an appointment for the study visit. If so, this will be scheduled to occur around 7 days from the date of the phone call.

Treatment:

Device: MARIA scan

Same-day MARIA scan visit

Other group

Description:

For Arm 2, participants will be identified in clinic as having a suitable symptomatic breast and approached about the study. They will have the study design explained to them and will be informed that they are under no obligation to participate. Arm 2 participants will receive study information and as much time as possible to consider their involvement with the study (at least 1 hour). If the patient agrees to participate, they will be scheduled to have their MARIA scans at a time that suits their commitments that day. This arm also includes the 2b group, who can optionally consent to a dielectric constant reading of their routinely-aspirated cyst fluid before this is disposed of as per usual site process.

Treatment:

Device: MARIA scan