Nerve-sparing, Robot-assisted Radical Prostatectomy Using a Personalized, 3D-printed Prostate Model for Selective Resection of Positive Surgical Margins

NCT ID: NCT05960669

Last Updated: 2023-07-27

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

100 participants

Study Classification

INTERVENTIONAL

Study Start Date

2018-08-01

Study Completion Date

2022-08-26

Brief Summary

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To optimize precision for secondary resection (SR) in frozen section (FS) controlled nerve-sparing robot-assisted radical prostatectomy (NS-RARP) by using a personalized 3D-printed prostate model.

Detailed Description

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Background:

Nerve-sparing (NS) robot-assisted radical prostatectomy (RARP) offers optimized oncological and functional outcomes and has become the preferred minimally-invasive approach when available. To maximize oncologic safety in NS-RARP, a frozen section (FS) can be used but does not provide a visual impression of the positive surgical margin (PSM) to guide secondary resection (SR).

Objective:

To optimize precision for secondary resection (SR) in frozen section (FS) controlled nerve-sparing robot-assisted radical prostatectomy (NS-RARP) by using a personalized 3D-printed prostate model.

Design, setting and participants:

100 patients with NS-RARP performed between September 2018 and August 2021 were included in this prospective multicenter cohort study.

Interventions:

A prostate model was 3D printed from preoperative pelvic MRI data and used during surgery to mark a PSM and guide SR.

Outcome Measurements and statistical analysis Endpoints were comparison of the primary surgical margin status in the FS with the tissue of the resulting SR and with the final surgical margin status. Secondary parameters for oncological and erectile outcomes were assessed before and one year after surgery.

Conditions

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Prostate Cancer

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Cohort Study
Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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3D model guided SR

A prostate model was 3D printed from preoperative pelvic MRI data and used during surgery to mark a positive surgical margin and guide secondary resection.

Group Type EXPERIMENTAL

3D model guided secondary resection

Intervention Type PROCEDURE

A prostate model was 3D printed from preoperative pelvic MRI data and used during robot-assisted radical prostatectomy to mark a positive surgical margin and guide secondary resection.

Interventions

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3D model guided secondary resection

A prostate model was 3D printed from preoperative pelvic MRI data and used during robot-assisted radical prostatectomy to mark a positive surgical margin and guide secondary resection.

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* preoperatively planed and intraoperatively performed nerve-sparing approach (at least unilateral)
* suitable pelvic MRI for the creation of a personalized 3D prostate model,
* written patient consent

Exclusion Criteria

* no nerve sparing performed
Minimum Eligible Age

18 Years

Maximum Eligible Age

80 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

No

Sponsors

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Intuitive Surgical

INDUSTRY

Sponsor Role collaborator

University Hospital, Basel, Switzerland

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Christian CE Engesser, Dr.

Role: PRINCIPAL_INVESTIGATOR

University Hospital, Basel, Switzerland

Jan JE Ebbing, PD Dr. med

Role: PRINCIPAL_INVESTIGATOR

University Hospital, Basel, Switzerland

Locations

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Universitätsspital Basel Urologie

Basel, , Switzerland

Site Status

Countries

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Switzerland

Other Identifiers

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AURORA_2018

Identifier Type: -

Identifier Source: org_study_id

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