NCT01835977

Brief Summary

Multi-centre Randomized Clinical Trial: 106 patients with confirmed unilateral high-volume low risk (Gleason score 3 + 3) or intermediate risk prostate cancer (Gleason score 3 + 4) will undergo an IRE treatment. These patients will be randomized into one of the two groups of the study. Group 1: Focal ablation of the prostate at the side of the positive biopsies (focal-ablation) Group 2: Extended ablation of the prostate (extended ablation) Patients will have an ultrasound of the prostate and the imaging data will be entered into the Planning Software system of the IRE-device. The volume of the prostate is measured and a specified ablation zone will be determined. The patients will be admitted for overnight stay in the hospital on the morning of the scheduled IRE procedure. The IRE will be performed under general anaesthetic and the specified zone identified in the planning stage will be ablated. Two to four IRE electrode needles will be placed into the prostate under ultrasound image guidance with a perineal approach using a brachytherapy grid. 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 day post-operatively, 1 month, 3 months, 6 months and 1, 2 and 3 year(s) post IRE.

Trial Health

35
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
106

participants targeted

Target at P75+ for phase_2 prostate-cancer

Timeline
Completed

Started Jun 2015

Longer than P75 for phase_2 prostate-cancer

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

April 8, 2013

Completed
11 days until next milestone

First Posted

Study publicly available on registry

April 19, 2013

Completed
2.1 years until next milestone

Study Start

First participant enrolled

June 1, 2015

Completed
4.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 30, 2020

Completed
4.9 years until next milestone

Study Completion

Last participant's last visit for all outcomes

January 1, 2025

Completed
Last Updated

December 16, 2020

Status Verified

December 1, 2020

Enrollment Period

4.7 years

First QC Date

April 8, 2013

Last Update Submit

December 11, 2020

Conditions

Keywords

Focal therapyIrreversible electroporationUnilateral prostate cancer

Outcome Measures

Primary Outcomes (1)

  • Patient experience (side-effects and quality of life) after IRE ablation of prostate cancer

    To determine post procedural side-effects and Quality of life measured by International Prostate Symptom Score (IPSS), International Index of Erectile Function (IIEF) and Functional Assessment of Cancer Therapy-Prostate (FACT-P).

    5 years

Secondary Outcomes (1)

  • Oncological efficacy IRE ablation of prostate cancer.

    5 years

Study Arms (2)

Focal ablation

ACTIVE COMPARATOR

Focal ablation of unilateral histopathologically confirmed, organ confined prostate cancer using IRE

Device: Irreversible Electroporation (Nanoknife)

Extended ablation

ACTIVE COMPARATOR

Extended ablation unilateral histopathologically confirmed, organ confined prostate cancer using IRE

Device: Irreversible Electroporation (Nanoknife)

Interventions

Also known as: Nanoknife
Extended ablationFocal ablation

Eligibility Criteria

Age50 Years - 100 Years
Sexmale
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Histologically confirmed organ-confined unilateral prostate cancer with adjacent positive biopsies on transperineal template prostate biopsies or MRI targeted biopsies in combination with systematic biopsies (clinical stage T1c-T2b)
  • Gleason sum score 6 or 7
  • PSA \<15 ng/ml or PSA \> 15 ng/mL counselled with caution
  • Life expectancy of \> 10 years

You may not qualify if:

  • Bleeding disorder as determined by prothrombin time (PT) \> 14.5 seconds, partial thromboplastin time (PTT) \> 34 seconds, and Platelet Count \< 140/uL
  • No ability to stop anticoagulant or anti-platelet therapy for 7 days prior the procedure.
  • Active urinary tract infection (UTI)
  • History of bladder neck contracture
  • Anaesthesia Surgical Assignment category IV or greater
  • History of inflammatory bowel disease
  • Concurrent major debilitating illness
  • Prior or concurrent malignancy except for basal cell carcinoma of the skin
  • Cardiac history including arrhythmias, ICD or pacemaker
  • Prostate calcifications greater than 5 mm.
  • Biologic or chemotherapy for prostate cancer
  • Hormonal therapy for prostate cancer within 6 months prior to procedure
  • Previous radiation to pelvis
  • Transurethral resection of the prostate / Urethral stent
  • Prior major rectal surgery (except haemorrhoids)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (2)

  • Zhang K, Teoh J, Laguna P, Dominguez-Escrig J, Barret E, Ramon-Borja JC, Muir G, Bohr J, de Reijke TM, Pelechano Gomez P, Ng CF, Sanchez-Salas R, de la Rosette J. Effect of Focal vs Extended Irreversible Electroporation for the Ablation of Localized Low- or Intermediate-Risk Prostate Cancer on Early Oncological Control: A Randomized Clinical Trial. JAMA Surg. 2023 Apr 1;158(4):343-349. doi: 10.1001/jamasurg.2022.7516.

  • Scheltema MJ, van den Bos W, de Bruin DM, Wijkstra H, Laguna MP, de Reijke TM, de la Rosette JJ. Focal vs extended ablation in localized prostate cancer with irreversible electroporation; a multi-center randomized controlled trial. BMC Cancer. 2016 May 5;16:299. doi: 10.1186/s12885-016-2332-z.

Related Links

MeSH Terms

Conditions

Prostatic Neoplasms

Interventions

Electroporation

Condition Hierarchy (Ancestors)

Genital Neoplasms, MaleUrogenital NeoplasmsNeoplasms by SiteNeoplasmsGenital Diseases, MaleGenital DiseasesUrogenital DiseasesProstatic DiseasesMale Urogenital Diseases

Intervention Hierarchy (Ancestors)

Cytological TechniquesClinical Laboratory TechniquesInvestigative TechniquesElectrochemical Techniques

Study Officials

  • Jean de la Rosette, MD, PhD

    Clinical Research Office of the Endourological Society

    STUDY CHAIR

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

April 8, 2013

First Posted

April 19, 2013

Study Start

June 1, 2015

Primary Completion

January 30, 2020

Study Completion

January 1, 2025

Last Updated

December 16, 2020

Record last verified: 2020-12