Intraoperational Prostate Loge Biopsies (iPROLOGX) After Radical Prostatovesiculectomy

NCT ID: NCT02460861

Last Updated: 2015-06-03

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

UNKNOWN

Clinical Phase

NA

Total Enrollment

279 participants

Study Classification

INTERVENTIONAL

Study Start Date

2011-11-30

Study Completion Date

2015-12-31

Brief Summary

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This project is about the detection of occult tumor cells in surgical margins of radical prostatovesiculectomy by analysing the methylation status of Glutathione S-transferase P 1 (GSTP1). After gland excision specimens are obtained from 9 defined areas of the prostatic fossa. The biopsies are divided into two parts. One part used for histopathological analysis and the other part for moleculargenetic analysis. Results will be correlated e.g. with tumor stage, Gleason Score and prostate specific antigen (PSA).

The prostate-cancer-negative control group with bladder cancer.

Detailed Description

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This project is about the detection of occult tumor cells in surgical margins of radical prostatovesiculectomy by analysing the methylation status of Glutathione S-transferase P 1 (GSTP1). After gland excision specimens are obtained from 9 defined areas of the prostatic fossa. The biopsies are divided into two parts. One part used for histopathological analysis and the other part for moleculargenetic analysis. Results will be correlated e.g. with tumor stage, Gleason Score and prostate specific antigen (PSA).

The prostate-cancer-negative control group with bladder cancer.

DNA ISOLATION

DNA from biopsies stored by -80°C was isolated by using innuPREP DNA mini Kit (Analytik Jena, Jena, Germany) following protocol 1 of the manufacturer's instructions. DNA was eluted with 50 µl elution buffer. Concentration and purity were analysed by using Nanodrop 2000.

DNA BISULFITE MODIFICATION

DNA was modified by using EpiTect Bisulfite Kit (QIAGEN, Hilden, Germany) according to manufacturer's instructions. Samples were eluted once with 20 µl elution buffer.

QUANTITATIVE METHYLATION SPECIFIC PCR

Methylation status of GSTP1 is analysed by quantitative methylation-specific PCR (Q-MSP) using StepOnePlus Real-Time PCR System and StepOne Software v2.1 from Applied Biosystems (Darmstadt, Germany). Q-MSP was performed in duplicate analysing genes Actin and GSTP1. The primers' and testing probes' sequences used to amplify and detect hypermethylated GSTP1 were: 5'-AgTTgCgCggCgATTTC (forward primer), 5'-gCCCCAATACTAAATCACgACg (reverse primer) and 5'-CggTCgACgTTCggggTgTAgCg (taqman probe), labelled with fluorescence dye FAM. The primers' and testing probes' sequences used to amplify and detect Actin were: 5'-TggTgATggAggAggTTTAgTAAgT (forward primer), 5'-AACCAATAAAACCTACTCCTCCCTTAA (reverse primer),5'-ACCACCACCCAACACACAATAACAAACACA (taqman probe), labelled with fluorescence dye VIC.

The Q-MSP was carried out at 50°C for 2 min., 95°C for 15 min. followed by 50 cycles of 95°C for 1s and 60°C for 1 min. As a positive control bisulfite-converted DNA of DU145 and LNCap were used. Blank reactions with destillated water, which replaced DNA, served as negative control (NTC).

Conditions

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Prostate Cancer

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

NONE

Study Groups

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PCA Magdeburg

Prostate cancer conducted for RPVE with curative Intention, biopsies of the prostatic fossa in Magdeburg

Group Type ACTIVE_COMPARATOR

biopsies of the prostatic fossa in Magdeburg

Intervention Type PROCEDURE

intraoperative Open surgical biopsies of the prostatic fossa after prostatevesiculectomy in Magdeburg

RPVE

Intervention Type PROCEDURE

Open Radical prostatovesiculectomy in Magdeburg

Non-prostate cancer Magdeburg/Gronau

Conducted for CE in Male with bladder cancer or other indication for cystectomy but without prostate cancer in Magdeburg or Gronau, biopsies of the prostatic fossa in Gronau

Group Type ACTIVE_COMPARATOR

biopsies of the prostatic fossa in Magdeburg

Intervention Type PROCEDURE

intraoperative Open surgical biopsies of the prostatic fossa after prostatevesiculectomy in Magdeburg

CE

Intervention Type PROCEDURE

Open cystectomy in Magdeburg/Gronau

biopsies of the prostatic fossa in gronau

Intervention Type PROCEDURE

intraoperative endoscopic robotassisted biopsies of the prostatic fossa after prostatevesiculectomy in Gronau

PCA Gronau

Prostate cancer conducted for ETRARP with curative Intention, biopsies of the prostatic fossa

Group Type ACTIVE_COMPARATOR

ETRARP

Intervention Type PROCEDURE

Robotassisted Radical prostatovesiculectomy in Gronau

biopsies of the prostatic fossa in gronau

Intervention Type PROCEDURE

intraoperative endoscopic robotassisted biopsies of the prostatic fossa after prostatevesiculectomy in Gronau

Interventions

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biopsies of the prostatic fossa in Magdeburg

intraoperative Open surgical biopsies of the prostatic fossa after prostatevesiculectomy in Magdeburg

Intervention Type PROCEDURE

RPVE

Open Radical prostatovesiculectomy in Magdeburg

Intervention Type PROCEDURE

ETRARP

Robotassisted Radical prostatovesiculectomy in Gronau

Intervention Type PROCEDURE

CE

Open cystectomy in Magdeburg/Gronau

Intervention Type PROCEDURE

biopsies of the prostatic fossa in gronau

intraoperative endoscopic robotassisted biopsies of the prostatic fossa after prostatevesiculectomy in Gronau

Intervention Type PROCEDURE

Other Intervention Names

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surgical biopsies surgical prostatectomy surgical prostatectomy surgical cystoprostatectomy surgical biopsies

Eligibility Criteria

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Inclusion Criteria

* sex: male
* diagnosis: prostate adenocarcinoma
* treatment: radical prostatovesiculectomy
* period of treatment: 11/30/2011 - 10/15/2013


* sex: male
* diagnosis: urothelial carcinoma
* treatment: cysto-prostatectomy
* period of treament: 12/14/2011 - 02/18/2014

Exclusion Criteria

* sex: female
* diagnosis: no prostate adenocarcinoma
* treatment: no radical prostatovesiculectomy
* period of treament: before 11/30/2011 or after 10/15/2013

Criteria for prostate adenocarcinoma negative control group:


* sex: female
* diagnosis: incidental prostate adenocarcinoma
* treatment: no cysto-prostatectomy
* period of treatment: before 12/14/2011 or after 02/18/2014
Eligible Sex

MALE

Accepts Healthy Volunteers

No

Sponsors

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St. Antonius Hospital Gronau

OTHER

Sponsor Role collaborator

University of Magdeburg

OTHER

Sponsor Role lead

Responsible Party

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Johann J. Wendler, MD

Dr. med.

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Martin Schostak, Prof.Dr.med.

Role: STUDY_CHAIR

University of Magdeburg

Locations

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St. Antonius Hospital

Gronau, North Rhine-Westphalia, Germany

Site Status

Department of Urology, University Clinic Otto von Guericke University Magdeburg

Magdeburg, Saxony-Anhalt, Germany

Site Status

Countries

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Germany

Other Identifiers

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MD-URO-00021

Identifier Type: -

Identifier Source: org_study_id

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