AzTrials
AzTrials

Prostate CancerPhase 1NCT01790451

Safety and Efficacy of Irreversible Electroporation in Ablation of Prostate Cancer in Humans

A Phase 1 study testing Irreversible Electroporation in people with Prostate Cancer, run by Clinical Research Office of the Endourological Society at 1 site in Netherlands.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
Search all trials

Trial summary

Up to 16 patients with confirmed low- or intermediate risk prostate cancer scheduled for a radical prostatectomy will be asked to have the Irreversible Electroporation (IRE) procedure approximately 30 days prior to the prostatectomy. Read more about this study

Who is it for?
Any age, men only
Conditions the study is for
Prostate Cancer
What is being tested?
Irreversible Electroporation
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
16 participants
Where
1 siteNetherlands
Study dates
Aug 2013to Oct 2014
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages Any age
  • Men only
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

  • Patients with prostate cancer who are indicated to undergo a radical prostatectomy
  • Life expectancy of > 10 years
  • Able to visualize prostate gland adequately on transrectal US imaging during enrolment evaluation
  • No prostate calcification greater than 5 mm
  • Ability of subject to stop anticoagulant and anti-platelet therapy for 7 days prior and 7 days post procedure

Who cannot join

  • Other Conditions/Status
  • Bleeding disorder as determined by prothrombin time (PT) > 14.5 seconds, partial thromboplastin time (PTT) > 34 seconds, and Platelet Count < 140/microliter (uL)
  • Active urinary tract infection (UTI)
  • History of bladder neck contracture
  • Anaesthesia Surgical Assignment, category IV or greater
  • History of inflammatory bowel disease
Show all 18Show fewer
  • Concurrent major debilitating illness
  • Prior or concurrent malignancy
  • Cardiac History
  • Implantable cardioverter-defibrillator (ICD) / Pacemaker
  • Prior or current therapies
  • Biologic therapy for prostate cancer
  • Chemotherapy for prostate cancer
  • Hormonal therapy for prostate cancer within 3 months of procedure
  • Radiotherapy for prostate cancer
  • Transurethral prostatectomy (TURP), urethral stent
  • Prior major rectal surgery (except haemorrhoids)
  • Inability or unwillingness to tolerate temporary cessation of concurrent anticoagulation therapy or anti-platelet drugs for a period of 7days prior to procedure and up to 7 days after procedure

Trial locations and contacts

1 site in 1 country.

Netherlands1 site
  • AMC University Hospital

    Amsterdam, 1105 AZ

Other trials in Netherlands

About this study

Official title: The Safety and Efficacy of Irreversible Electroporation for the Ablation of Prostate Cancer Assessed by Procedural Related Side Effects and Post Prostatectomy Histology: A Prospective Human In-Vivo Study.

Up to 16 patients with confirmed low- or intermediate risk prostate cancer scheduled for a radical prostatectomy will be asked to have the Irreversible Electroporation (IRE) procedure approximately 30 days prior to the prostatectomy. Ablation with IRE will be performed using similar planning criteria, procedure protocol, instruments and software used for brachytherapy, a conventional targeted radiation therapy where radioactive seeds are implanted into prostate tumours. Patients will have an ultrasound of the prostate and the imaging data will be entered into the Planning Software system. The volume of the prostate is measured and a specified ablation zone will be determined. The IRE will be performed under general anaesthetic and the specified zone identified in the planning stage will be ablated. Four IRE electrode needles will be placed into the prostate under ultrasound image guidance. When the needles are in place, electric pulses of one to two minutes duration are used to ablate the specified zone. The total procedure time will be approximately 1 hour. Safety data will be collected and patients will be followed up at 1 week, 2 weeks post IRE, pre- prostatectomy, post prostatectomy and 1 week post prostatectomy. The safety data collection is at 2 weeks post IRE. Before the IRE procedure, patients will have a Magnetic Resonance Imaging (MRI) and Contrast Enhanced Ultrasound (CEUS) of the prostate. The patients will have their scheduled prostatectomy at approximately 30 days after the IRE procedure. Pre-prostatectomy, the ablation zone will be radiologically assessed by a control MRI/CEUS. Post prostatectomy, efficacy of ablation will be determined by histological examination of the prostate by the Pathology Department and measured as complete or incomplete ablation.

The primary outcome is safety as measured by the composite of procedural device and post procedural adverse events, measured with the Common Terminology Criteria for Adverse Events v 4 (CTCAE), Expanded Prostate Cancer Index Composite (EPIC) score, International Prostate Symptom Score (IPSS) or required catheterization time and International Index of Erectile Function (IIEF) and efficacy of ablation determined by histological examination post prostatectomy. Secondary outcomes will be patients procedure satisfaction measured by patient satisfaction questionnaire, post procedural pain management and Visual Analogue Scale (VAS) pain score, time to ambulation, length of hospital stay.

Conditions
Prostate Cancer
Being tested
Irreversible Electroporation
Keywords
focal therapy, irreversible electroporation, prostate cancer
Medical subject headings
Prostatic Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Irreversible ElectroporationProcedure or surgery

    Also called Nanoknife

Study groups in NCT01790451
Study groupRoleWhat they receive
peripheral ablationActive comparatoran ablation of the peripheral area of the prostate
Receives: Procedure: Irreversible Electroporation
More central ablationActive comparatoran ablation, more centrally, in proximity of the urethra
Receives: Procedure: Irreversible Electroporation

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Safety IRE ablation procedure

    To determine if the IRE ablation procedure is safe as measured by the composite number of procedural, device and post procedural adverse events measured with the CTCAE proforma.

    Measured: 1 year

  2. Efficacy

    To determine if complete ablation of the specified targeted ablation zone is achieved as measured by histopathology assessment.

    Measured: 1 year

Secondary outcomes (3)
  1. Side effects

    To determine if procedural side effects associated with current treatments for prostate cancer, mainly incontinence, erectile dysfunction and bowel damage are avoided as measured by the validated prostate cancer scores -EPIC, IIEF-5 and IPSS or time of CAD required.

    1. To determine patient satisfaction and comfort measured by Patient Satisfaction Questionnaire, post procedural pain management and pain score, time to ambulation, length of hospital stay.
    2. To determine accurateness of ablation zone detection by MRI/CEUS.

    Measured: 1 year

  2. Quality of Life

    To determine patient satisfaction and comfort measured by Patient Satisfaction Questionnaire, post procedural pain management and pain score, time to ambulation, length of hospital stay.

    Measured: 1 year

  3. Ablation Zone Detection

    To determine accurateness of ablation zone detection by MRI/CEUS

    Measured: 1 year

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted13 Feb 2013 (estimated)
  2. Study startAug 2013
  3. Primary completionOct 2014
  4. Study completionOct 2014

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
16 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01790451
Sponsor's protocol ID
2012-252
Status last verified
Aug 2014
First submitted
8 Feb 2013
Last updated
20 Feb 2015
Results posted
No
Data monitoring committee
Yes

Publications

  • van den Bos W, de Bruin DM, Jurhill RR, Savci-Heijink CD, Muller BG, Varkarakis IM, Skolarikos A, Zondervan PJ, Laguna-Pes MP, Wijkstra H, de Reijke TM, de la Rosette JJ. The correlation between the electrode configuration and histopathology of irreversible electroporation ablations in prostate cancer patients. World J Urol. 2016 May;34(5):657-64. doi: 10.1007/s00345-015-1661-x. Epub 2015 Aug 22.

    PubMed 26296371
  • van den Bos W, de Bruin DM, Muller BG, Varkarakis IM, Karagiannis AA, Zondervan PJ, Laguna Pes MP, Veelo DP, Savci Heijink CD, Engelbrecht MRW, Wijkstra H, de Reijke TM, de la Rosette JJMCH. The safety and efficacy of irreversible electroporation for the ablation of prostate cancer: a multicentre prospective human in vivo pilot study protocol. BMJ Open. 2014 Oct 29;4(10):e006382. doi: 10.1136/bmjopen-2014-006382.

    PubMed 25354827

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Irreversible Electroporation in people with Prostate Cancer, run by Clinical Research Office of the Endourological Society at 1 site in Netherlands.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 18 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 20 Feb 2015. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Netherlands. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Safety IRE ablation procedure (time frame: 1 year). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01790451, which also lists 2 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 20 Feb 2015.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in