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Prostate CancerIDITOP-1NCT01729442

Assessment of HIFU-induced Prostate Necrosis With Shear-wave Ultrasound Elastography

A study testing Shear-wave ultrasound elastography (SWUE) in people with Prostate Cancer, run by Hospices Civils de Lyon at 1 site in France.

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

Transrectal High-intensity Focused Ultrasound (HIFU) is a minimally-invasive therapy for prostate cancer that is currently assessed in two indications: as a first-line treatment (either total or focal) for patients who are not eligible for surgery and as a salvage treatment of local recurrences after radiotherapy. Read more about this study

Who is it for?
Ages 18 years and older, men only
Conditions the study is for
Prostate Cancer
What is being tested?
Shear-wave ultrasound elastography (SWUE)
Could I receive a placebo?
No, everyone receives an active treatment
How many people
30 participants
Where
1 siteFrance
Study dates
Oct 2012to Oct 2014
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 18 years and older
  • Men only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Age > 18 years
  • Prostate cancer proved by biopsy
  • Prostate cancer not eligible for surgery referred for total or hemi HIFU ablation, OR prostate cancer local recurrence referred for salvage HIFU ablation
  • Anal and rectal normal anatomy
  • Life expectancy ≥ 5 years
  • Satisfactory general condition (ASA 1 to 3)
  • Informed consent signed
  • Affiliation to the French social security system or equivalent social security system.

Who cannot join

  • Patient treated by hormonotherapy
  • Prostatic calcifications preventing HIFU ablation
  • Distance between rectal mucosa and prostatic capsule ≥ 6 mm
  • History of inflammatory bowel disease
  • Sclerosis of the bladder neck or urethral stenosis
  • Rectal fistula
Show all 15Show fewer
  • Ongoing urinary infection
  • Impaired renal function (MDRD < 30mL/min/1,73 m²)
  • Severe BPCO
  • Acute endocarditis/ Hypercoagulation/ recent thromboembolism
  • Latex or sulphur hexafluoride allergy
  • Contraindication to the injection of Sonovue®
  • Patient on protection of the Court, under supervision or trusteeship
  • Inability to express an informed consent
  • Patient already enrolled in a study that could interfere with this study.

Trial locations and contacts

1 site in 1 country.

France1 site
  • Hospices Civils de Lyon - Hôpital Edouard Herriot

    Lyon, 69003

Other trials in France

About this study

Official title: Transrectal Prostate Cancer High-Intensity Focused Ultrasound Ablation: Assessment of Tissue Destruction With Shear-wave Ultrasound Elastography

Transrectal High-intensity Focused Ultrasound (HIFU) is a minimally-invasive therapy for prostate cancer that is currently assessed in two indications: as a first-line treatment (either total or focal) for patients who are not eligible for surgery and as a salvage treatment of local recurrences after radiotherapy.

It has recently been shown that Contrast-Enhanced Ultrasound (CEUS) can accurately assess the position and volume of tissue destruction at the end of prostate HIFU ablation. This can provide live feedback regarding the amount of residual non ablated tissue after HIFU treatment, which could allow immediate re-treatment in case of unsatisfactory result.

Read more

CEUS requires the injection of micro-bubbles of sulphur hexafluoride (Sonovue, Bracco, Milan, Italy) which can, at least in theory, interfere with HIFU treatment. Therefore, it is necessary to wait 20 to 30 minutes before re-treating the patient.

Shear-wave ultrasound elastography (SWUE, Supersonic Imagine, Aix-en-Provence, France) can quantify tissue stiffness. Moreover, post-HIFU necrosis is known to be stiffer than undestroyed prostate tissue. Therefore, SWUE could be an alternative to CEUS, and the purpose of this study is to evaluate the accuracy of SWUE in depicting the position and volume of therapeutic necrosis after prostate cancer High-Intensity Focused Ultrasound (HIFU) ablation.

The present study is an exploratory, monocentric, prospective, descriptive study. Three groups of 10 patients with prostate cancer will be evaluated: patients referred for first-line prostate HIFU ablation, patients referred for first-line HIFU hemi-ablation (focal treatment) and patients referred for salvage HIFU after radiotherapy.

SWUE will be obtained the day before HIFU ablation (D-1), immediately after HIFU ablation (D0) and the following day (D+1). CEUS will be performed immediately after HIFU ablation and D0 SWUE.

The primary endpoint is the comparison of the thickness of undestroyed parenchyma measured by SWUE and CEUS.

The secondary endpoints are:

  • The evolution of shear elasticity within the treated area measured by SWUE at D-1, D0 and D+1,
  • Adverse events related to SWUE.

The study will last 40 months.

Conditions
Prostate Cancer
Being tested
Shear-wave ultrasound elastography (SWUE)
Medical subject headings
Prostatic Neoplasms

What participants receive

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

  • Shear-wave ultrasound elastography (SWUE)Other

Study groups in NCT01729442
Study groupRoleWhat they receive
Patients referred for first-line prostate HIFU ablationOther10 patients
Receives: Other: Shear-wave ultrasound elastography (SWUE)
Patients referred for first-line HIFU hemi-ablationOther10 patients
Receives: Other: Shear-wave ultrasound elastography (SWUE)
Patients referred for salvage HIFU after radiotherapyOther10 patients
Receives: Other: Shear-wave ultrasound elastography (SWUE)

What is being measured

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

  1. Measurement of the thickness of undestroyed parenchyma

    Briefly, the thickness of undestroyed parenchyma will be measured on CEUS and D0 SWUE in the anterior, lateral and posterior parts of both prostatic lobes. The thickness (height) of undestroyed parenchyma left at both apex will also be measured.

    Measurements obtained with CEUS (used as reference) and SWUE will be compared.

    Measured: Day 0

Secondary outcomes (1)
  1. Evolution of shear elasticity in the treated area

    Using CEUS images as reference, a Region-of-Interest (ROI) will be placed within the area destroyed by HIFU in both lobes (except for the hemi-HIFU group). The stiffness within the ROI will be measured before HIFU ablation (D-1), immediately after (D0) and the day after (D+1).

    One or two ROI will also be placed in undestroyed tissue (as shown by CEUS used as reference) and the evolution of stiffness from D-1 to D+1 will also be measured.

    Measured: D-1 / D0 / D+1

Timeline

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

  1. First posted20 Nov 2012 (estimated)
  2. Study startOct 2012
  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 N/A
Primary purpose
Diagnosis
Allocation
Non-randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
30 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01729442
Sponsor's protocol ID
2012.730
Acronym
IDITOP-1
Status last verified
Oct 2014
First submitted
14 Nov 2012
Last updated
22 Oct 2014
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A study testing Shear-wave ultrasound elastography (SWUE) in people with Prostate Cancer, run by Hospices Civils de Lyon at 1 site in France.

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 8 inclusion and 15 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 22 Oct 2014. 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 France. 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?

Measurement of the thickness of undestroyed parenchyma (time frame: Day 0). 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 22 Oct 2014.

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