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Microendoscopic EI Sensing for Real-time Intraoperative Surgical Margin Assessment

Microendoscopic Electrical Impedance Sensing for Real-time Intraoperative Surgical Margin Assessment

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT06039085
Acronym
RARP EI
Enrollment
200
Registered
2023-09-15
Start date
2023-11-03
Completion date
2027-12-31
Last updated
2026-04-07

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

Conditions

Prostate Cancer

Keywords

Impedance

Brief summary

This research will study a custom device developed to detect if any prostate cancer tissue is left behind when the prostate is removed. This device is called an Electrical Impedance Imaging (EII) probe.

Detailed description

Two hundred men will be recruited to participate in this trial. Consent will be obtained from all participating men prior to surgery. The trial will consist of recording EII data from: 1. In vivo pelvic floor and peri-prostatic tissues remaining after the prostate has been resected 2. Resected ex vivo prostate following extraction from the abdomen (in the OR) 3. Resected ex vivo prostate when transferred to Pathology, post-RARP The study team will also track post-surgical complications due to the study's technology (e.g., infection) and additional time required to deploy the study technology used to assess feasibility of clinical integration of the EII device. Post-RARP pathological assessment of margin tissues will be used to train and evaluate the study's classification schemes for identifying Positive Surgical Margin (PSMs).

Interventions

DEVICEcustom device to demonstrate a significant difference in electrical impedance signatures

Custom device will be used to measure electrical impedance signatures.

Sponsors

Ryan J. Halter
Lead SponsorOTHER
Dartmouth College
CollaboratorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
MALE
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Clinical diagnosis of prostate cancer requiring RARP. 2. Ability to understand and the willingness to sign a written informed consent document. 3. Age ≥ 18 years old

Exclusion criteria

1. Adults with implanted electrical devices such as pacemakers 2. Prisoners 3. Adults with impaired decision-making capacity 4. Any condition for which, in the opinion of the investigator, contraindicates study participation.

Design outcomes

Primary

MeasureTime frameDescription
Electrical impedance difference between positive and negative surgical margins2023-2025Outcome measures will include how significantly different electrical impedance signatures are between impedance recordings of positive and negative surgical margins as acquired during prostate surgery.

Secondary

MeasureTime frameDescription
Safety of EI sensing in vivo electrical sensing2023-2025Secondary outcome measures will include number of study-related adverse events documented.
Efficacy of EI sensing in vivo electrical sensing2023-2025Tertiary outcome measures will include classification accuracy of EI-based surgical margin assessment

Countries

United States

Contacts

CONTACTRyan J Halter, PhD
Ryan.J.Halter@dartmouth.edu(603) 646-0773
CONTACTKathy J Phipps, BA
kathy.j.phipps@dartmouth.edu603 646-5793
PRINCIPAL_INVESTIGATORRyan J Halter, PhD

Dartmouth-Hitchcock, Manchester

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Apr 8, 2026