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Transurethral Periprostatectomy Treatment of Cancerous Prostate Tissue

Transurethral Periprostatectomy Treatment of Cancerous Prostate Tissue (Peri III Study)

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07561502
Acronym
PERI III
Enrollment
32
Registered
2026-05-01
Start date
2022-11-14
Completion date
2023-08-11
Last updated
2026-05-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Prostate Cancer

Keywords

Water Vapor, Ablation, Prostate Cancer, Vapor Ablation

Brief summary

This goal of this clinical trial is to determine if the Vanquish System can safely and effectively treat cancerous tissue in the prostate. Researchers will also determine the best treatment dose, monitor safety during and immediately after the procedure, and examine prostate tissue after surgical removal to confirm how well the treatment destroyed targeted tissue. Patients enrolled have been diagnosed with prostate cancer and will undergo treatment with the Vanquish System before their scheduled radical prostatectomy.

Interventions

Water vapor ablation delivered transurethrally in patients undergoing a radical prostatectomy for prostate cancer.

Sponsors

Francis Medical Inc.
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
BASIC_SCIENCE
Masking
NONE

Eligibility

Sex/Gender
MALE
Age
40 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Subject is 40 years or older * Subjects is diagnosed with clinically localized prostate cancer (Stage I (T1c) or Stage II (T2a, T2b, T2c tumor) prostate cancer) AND scheduled for a radical prostatectomy or cystoprostatectomy due to the presence of prostate cancer * Subject has a positive biopsy for prostate cancer with Gleason score of 8 (4+4) and below * Subject who provides written consent to participate in the study

Exclusion criteria

* Subject with prostate biopsy performed within 42 days from date of prostatectomy. * Subject has a known allergy to nickel. * Subject who had previous rectal surgery (other than hemorrhoidectomy) * Subject with known history of rectal disease. * Subject currently participating in other premarket investigational studies. * Subject who had a previous TURP or prostatectomy.

Design outcomes

Primary

MeasureTime frameDescription
Lesion Characterization by Location and Thermal DamageEvaluated immediately post procedure.The primary efficacy endpoint is a lesion characterization from the Peri III Study vapor treatment as evaluated by TTC stain. Immediately following treatment and surgical extirpation, the prostate was examined for any external thermal injury followed by whole mount sectioning and staining using tetrazolium chloride (TTC). The whole mount sections were photographed before and after TTC staining. The sections and photographs were examined for ablation within all anatomic regions of the prostate and the ability to ablate to different regions and zones of the prostate.

Secondary

MeasureTime frameDescription
Adequacy Scale to Measure Visualization During ProcedureFrom the beginning to the end of the treatment procedure.Visualization during the procedure is important to ensure proper placement of the needle. Ultrasound was evaluated for visualization and graded by operator. Visualization adequacy was assessed in real time by the physician using a categorical scale (adequate/somewhat adequate/inadequate), based on subjective evaluation of target and instrument visibility on the ultrasound image.
Safety MeasurementsThrough 30 days following procedure.Any procedure-related AEs were collected and reported through 30 days.

Countries

Panama

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 2, 2026