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Prostate CancerNCT04087980

Ablation of Prostate Tissue Utilizing Sterile Water Vapor in Patients With Intermediate Risk Localized Prostate Cancer

A study testing Poseidon System in people with Prostate Cancer, run by Francis Medical Inc. at 5 sites in United States.

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

The purpose of this research study is to collect information on a new treatment of prostate tissue participants with intermediate risk prostate cancer using a medical device called the Poseidon System. The Poseidon System is intended to ablate prostate tissue in areas of the prostate where cancer has been identified. 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?
Poseidon System
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
26 participants
Where
5 sitesUnited States
Study dates
10 Apr 2020to 25 May 2022
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

  • 45-80 years old
  • Biopsy confirmed unilateral, adenocarcinoma of the prostate
  • Minimum of 12 biopsy cores obtained ≥4 weeks and ≤12 months before treatment. Targeted fusion biopsy is preferred if there is a MRI PI-RADs ≥3 lesion. It is preferred a standard 12 sector biopsy is mapped. MRI required if biopsy was completed >6 months prior to treatment date to confirm no MRI progression of disease that would be considered exclusionary.
  • ≤4 of 6 standard sector biopsy cores positive for prostate cancer (unilateral); positive core(s) from a targeted lesion count as one positive core.
  • Gleason score of 7 (3+4) / International Society of Urological Pathologists (ISUP) Gleason Grade Group (GGG) 2
  • Clinical Stage less than or equal to T2b N0 M0
  • PSA (Prostate Specific Antigen) less than or equal to 15ng/mL
  • Prostate size 20-80cc

Who cannot join

  • Malignant tumors identified by extraprostatic extension, sphincter involvement/lesion abutment seminal vesicle invasion or lymph node invasion or metastasis
  • Narrow Peripheral Zone
  • MRI identified PI-RADs ≥4 lesion contralateral to the side that has biopsy confirmed adenocarcinoma
  • Prior definitive treatment of prostate cancer

Trial locations and contacts

5 sites in 1 country.

5 sites in 1 country

United States5 sites
  • Chesapeake Urology

    Baltimore, Maryland, 21204

  • University of Minnesota

    Minneapolis, Minnesota, 55455

  • Bon Secours/Good Samaritan Hospital

    New York, New York, 10901

  • Urology San Antonio

    San Antonio, Texas, 78229

  • Minnesota Urology

    Woodbury, Minnesota, 55125

Other trials in United States

About this study

Official title: Multicenter Pilot Study of the Poseidon System for the Ablation of Prostate Tissue Utilizing Sterile Water Vapor in Patients With Intermediate Risk Localized Prostate Cancer

The purpose of this research study is to collect information on a new treatment of prostate tissue participants with intermediate risk prostate cancer using a medical device called the Poseidon System. The Poseidon System is intended to ablate prostate tissue in areas of the prostate where cancer has been identified. The medical device delivers thermal energy in the form of water vapor to the prostate tissue through the urethra. Previous research has shown successful prostate tissue ablation. Additional research may help show successful ablation of the prostate tissue where cancer is located.

Conditions
Prostate Cancer
Being tested
Poseidon System
Medical subject headings
Prostatic Neoplasms

What participants receive

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

  • Poseidon SystemDevice

    Multicenter Pilot Study of the Poseidon System for the Ablation of Prostate Tissue Utilizing Sterile Water Vapor in Patients with Intermediate Risk Localized Prostate Cancer

Study groups in NCT04087980
Study groupRoleWhat they receive
Poseidon System TreatmentExperimentalNot described
Receives: Device: Poseidon System

What is being measured

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

  1. Serious device related adverse events

    Measured: 180-day follow-up

Secondary outcomes (11)
  1. Adverse events, serious and non-serious, related and unrelated, will be collected on all patients enrolled

    Measured: Up to 1 Years

  2. Changes from baseline in the Expanded Prostate Cancer Index Questionnaire (EPIC)

    Measured: 180-day follow-up

  3. Changes from baseline in the International Index of Erectile Function Questionnaire (IIEF)

    Measured: 180-day follow-up

  4. Changes from baseline in the International Prostate Cancer Symptom Score (IPSS)

    Measured: 180-day follow-up

  5. Changes from baseline in the Male Sexual Health Ejaculatory Function Short Form Questionnaire (MSHQ-EjD)

    Measured: 180-day follow-up

  6. Participants evaluated for Gleason pattern 4 or higher disease on the treated side identified from biopsy

    Measured: 180-day follow-up

  7. Participants evaluated for biopsy negative on the treated side

    Measured: 180-day follow-up

  8. Changes from baseline with the PSA (Prostate Specific Antigen)

    Measured: Up to 1 Year

  9. Changes from baseline with the size of the prostate via MRI (Magnetic Resonance Imaging)

    Measured: 180-day follow-up

  10. Participants evaluated for Gleason pattern 4 or higher disease on the contralateral side identified from biopsy

    Measured: 180-day follow-up

  11. Participants evaluated for biopsy negative on the contralateral side

    Measured: 180-day follow-up

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 2019
  2. Study start10 Apr 2020
  3. Primary completion13 Apr 2021
  4. Study completion25 May 2022

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
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
26 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04087980
Sponsor's protocol ID
VAPOR I Pilot Study
Status last verified
Mar 2022
First submitted
9 Sep 2019
Last updated
26 Jul 2022
Results posted
No
FDA-regulated drug
No
FDA-regulated device
Yes

Questions about this trial

What is this clinical trial studying?

A study testing Poseidon System in people with Prostate Cancer, run by Francis Medical Inc. at 5 sites in United States.

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 4 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 26 Jul 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 5 sites in United States. 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?

Serious device related adverse events (time frame: 180-day follow-up). 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 26 Jul 2022.

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