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Prostate CancerFARPNCT03668652

Focal Prostate Ablation Versus Radical Prostatectomy

A study testing Focal HIFU treatment using Focal One (EDAP TMS) or TULSA-PRO (Profound Medical) and Radical prostatectomy in people with Prostate Cancer, run by Oslo University Hospital at 1 site in Norway.

Completed

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

Official record
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Trial summary

This study aims to compare the treatment results of HIFU and Radical prostatectomy. Read more about this study

Who is it for?
Ages 45 to 80 years, men only
Conditions the study is for
Prostate Cancer
What is being tested?
Focal HIFU treatment using Focal One (EDAP TMS) or TULSA-PRO (Profound Medical) and Radical prostatectomy
Could I receive a placebo?
No, everyone receives an active treatment
How many people
213 participants
Where
1 siteNorway
Study dates
30 Sep 2017to 30 Sep 2021
Phase
Interventional
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 45 to 80 years
  • Men only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Positive MRI (PIRAD 3-5) and biopsy proven unilateral prostate cancer classified as ISUP 1 (with cancer core length > 5mm) or ISUP 2-3 (any length) not eligible to active surveillance or watchful waiting
  • PSA ≤ 20 ng/ml
  • Treatment naive patients with localized prostate cancer (stage ≤ T2b)

Who cannot join

  • Clinical stage T> 2b
  • Metastatic lymph node on imaging
  • Patients already treated for Pca (hormone therapy, EBRT)
  • Patients with contra-indications to MRI
  • Patients with active inflammatory bowel disease or previous rectal fistula
  • History of previous pelvic radiotherapy
Show all 11Show fewer
  • History of bladder cancer
  • History of bladder neck or urethral stricture
  • Urogenital infection in progress
  • Allergy to latex or gadolinium
  • Patients on life support or suffering form unstable neurological diseases

Trial locations and contacts

1 site in 1 country.

Norway1 site
  • Department of Cancer surgery, Oslo University Hospital, Radiumhospitalet

    Oslo, 0514

Other trials in Norway

About this study

Official title: A Randomized Control Trial of Focal Prostate Ablation Versus Radical Prostatectomy

This study aims to compare the treatment results of HIFU and Radical prostatectomy.

Read the detailed description

The FARP randomized control study will compare focal ablation of prostate using High Intensity Focused Ultrasound (HIFU) applied by FocalOne® or TULSA® device versus Radical Prostatectomy (RP) in patients with unilateral, intermediate risk prostate cancer.

Conditions
Prostate Cancer
Being tested
Focal HIFU treatment using Focal One (EDAP TMS) or TULSA-PRO (Profound Medical), Radical prostatectomy
Keywords
Prostate Cancer, HIFU and TULSA Focal Treatment, Radical prostatectomy
Medical subject headings
Prostatic Neoplasms

What participants receive

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

  • Focal HIFU treatment using Focal One (EDAP TMS) or TULSA-PRO (Profound Medical)Device

    HIFU arm:

    Focal ablation of prostate cancer using HIFU Focal One or TULSA -PRO

  • Radical prostatectomyProcedure or surgery

    Prostatectomy arm:

    Robot assisted or open retropubic prostatectomy

Study groups in NCT03668652
Study groupRoleWhat they receive
Focal prostate cancer treatment by HIFUExperimentalPatients with target lesion distance < 30 mm from the rectum will be treated with High Intensity Focused Ultrasound (HIFU) applied by FocalOne HIFU device and patients with lesion localized > 30 mm from the rectum will be treated with TULSA applied by TULSA-PRO device.
Receives: Device: Focal HIFU treatment using Focal One (EDAP TMS) or TULSA-PRO (Profound Medical)
Radical ProstatectomyActive comparatorRobot assisted laparoscopic radical prostatectomy or open retro-pubic radical prostatectomy will be performed using validated radical prostatectomy technique. Nerve sparing surgery on side of cancer free prostate lobe will be performed and type of nerve sparing procedure will be specified.
Receives: Procedure: Radical prostatectomy

What is being measured

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

  1. Treatment failure.

    Treatment failure in focal ablation arm is classified as the need for secondary whole gland treatment such as radical prostatectomy or EBRT due to detection of ISUP > 3 in treated and/or untreated areas on follow up prostate biopsy, or development of metastases on imaging.

    Treatment failure in the radical prostatectomy arm is classified as PSA > 0.2 ng/ml after surgery.

    Measured: At 36 months from the treatment date.

Secondary outcomes (9)
  1. Focal ablation failure.

    Focal ablation failure is classified as presence of Pca ISUP 1 ( > 5 mm) and/or ISUP 2-3 (any length) on follow up biopsies of the treated prostate zone.

    Measured: Within 36 months from the treatment date.

  2. Total re-ablation rate

    Secondary HIFU ablation was allowed if control biopsies revealed prostate cancer ISUP 1 ( > 5 mm) and/or ISUP 2-3) in treated or untreated areas.

    Measured: Within 36 months from the treatment date.

  3. Diagnostic failure.

    Diagnostic failure is classified as clinically significant cancer on control biopsy in the untreated area.

    Measured: Within 36 months from the treatment date.

  4. Cancer specific and all-cause mortality.

    Cause of the mortality will be evaluated and registered.

    Measured: Within 36 months from the treatment date.

  5. Difference in metastasis-free and overall survival.

    Whole body MRI or PET CT will be performed if suspicion on metastases.

    Measured: Within 36 months years from the treatment date.

  6. Difference in urinary continence between focal ablation and radical prostatectomy.

    Expanded Prostate Cancer Index Composite-26 (EPIC-26) questionnaire for the evaluation of continence will be used.

    Difference in pad free urinary continence and difference in number of pads needed per day.

    Difference in urinary incontinens defined as (full continence= 0 pads/day; security pad or mild incontinence = 1pad/day; moderate incontinence = 2pads/day and severe incontinence > 2pads/day).

    Measured: Within 36 months from the treatment date.

  7. Difference in erectile function between focal ablation and radical prostatectomy.

    International Index of Erectile Function (IIEF-5) questionnaire for the evaluation erectile function will be used.

    A score of 1-5 is awarded to each of the 5 questions. Change in total score will be measured between the baseline and most recent follow-up visit.

    Measured: Within 36 months from the treatment date.

  8. Difference in quality of life between focal ablation and radical prostatectomy.

    The European Organization for Research and Treatment of Cancer Quality of Life Questionnaire (EORTC QLQ-c30) for the evaluation of quality of life between focal ablation and radical prostatectomy will be used.

    Measured: Within 36 months from the treatment date.

  9. Difference in adverse events related to both treatments.

    All adverse events will be registered prospectively according to Clavien-Dindo classification.

    Measured: Within 36 months from the treatment date

Timeline

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

  1. First posted12 Sep 2018
  2. Study start30 Sep 2017
  3. Primary completion30 Sep 2021
  4. Study completion30 Sep 2021

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 N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Model description
Randomized controlled trial.
Masking
None (open label)
Enrolment
213 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03668652
Sponsor's protocol ID
2017/703
Acronym
FARP
Status last verified
Mar 2025
First submitted
15 Apr 2018
Last updated
3 Apr 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No: All data generated during this study will be evaluated at Oslo University Hospital

Questions about this trial

What is this clinical trial studying?

A study testing Focal HIFU treatment using Focal One (EDAP TMS) or TULSA-PRO (Profound Medical) and Radical prostatectomy in people with Prostate Cancer, run by Oslo University Hospital at 1 site in Norway.

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 3 inclusion and 11 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 3 Apr 2025. 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 Norway. 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.

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?

Treatment failure. (time frame: At 36 months from the treatment date.). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 3 Apr 2025.

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