Water Vapor Ablation for Localized Intermediate Risk Prostate Cancer (VAPOR 2)
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The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details. |
ClinicalTrials.gov Identifier: NCT05683691 |
Recruitment Status :
Recruiting
First Posted : January 13, 2023
Last Update Posted : November 28, 2023
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Condition or disease | Intervention/treatment | Phase |
---|---|---|
Prostate Cancer | Device: Vanquish System | Not Applicable |
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 400 participants |
Allocation: | N/A |
Intervention Model: | Single Group Assignment |
Intervention Model Description: | Prospective, Multicenter, Single-Arm Study |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | Prospective, Multicenter, Single-Arm Study of VanquishTM Water Vapor Ablation for PrOstate CanceR |
Actual Study Start Date : | May 16, 2023 |
Estimated Primary Completion Date : | April 2027 |
Estimated Study Completion Date : | April 2029 |

Arm | Intervention/treatment |
---|---|
Experimental: Vanquish System Treatment |
Device: Vanquish System
Water vapor ablation delivered transurethrally in patients with intermediate risk, localized prostate cancer. |
- Primary Effectiveness Endpoint [ Time Frame: 36 months ]Freedom from systemic disease AND systemic therapy AND salvage therapy AND GGG≥2.
- Primary Safety Endpoint [ Time Frame: 12 months ]The proportion of subjects free from new or worsening urinary incontinence based on pad use at 12 months will be statistically compared to a performance goal.
- Key Secondary Endpoint [ Time Frame: 36 months ]The proportion of subjects free from impotence.

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.
Ages Eligible for Study: | 50 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | Male |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- ≥50 years of age; with life expectancy of ≥10 years
- 20-80 cc prostate size determined by MRI Central Imaging
- ≤15 ng/ml PSA
- Cancer stage less than or equal to T2c
- Within 12 months prior to signing consent have had a multiparametric MRI. Within 6 months prior to signing consent, have undergone a multiparametric MRI software guided fusion biopsy of the prostate (transrectal or transperineal). This must include a standard sector biopsy obtaining a minimum of 10-16 cores.
- <15mm diameter of qualifying lesion as measure by greatest diameter
- Subject is willing and able to adhere to specific protocol visits and required testing throughout study
- Is geographically stable and near the site or able and willing to travel back to site for follow-up visits involving diagnostic tests or treatment
- Able and willing to provide written consent to participate in the study.
Exclusion Criteria:
- Patients with >GGG3 cores anywhere in the prostate
- MRI evidence of extracapsular extension of cancer (MRI read as "definite", "frank" or "gross" ECE)
- All PI-RADS 5 lesions
- All MRI Central Imaging confirmed by PI-RADS 4 lesions negative on biopsy
- Contraindications to MRI
- Subjects with an installed pacemaker or other potentially electrically conductive implants implanted within 200mm (8 inches) of the procedure area. Implants that are within 200mm (8 inches) and can be turned off for the duration of the study procedure are acceptable.
- Any prior surgery, intervention, or minimally invasive therapy, (MIST) for the prostate cancer or bladder neck.
- Treated within the past 5 years for genital cancer
- Presence of any urethral or prostatic condition that precludes water vapor ablation per Instructions for Use
- Currently taking medications that have hormonal effects on the prostate or PSA, such as: 5 alpha reductase inhibitors (if on for <6 months), Androgen blockers, Luteinizing hormone-releasing hormone (LHRH) agonists or antagonists (12 month wash-out), or Testosterone supplementation
- Active urinary tract infection
- Active or clinically chronic prostatitis or granulomatous prostatitis
- Treated within the past 5 years for a lower and/or upper urinary tract malignancy (excluding prostate cancer meeting the inclusion criteria)
- Any rectal pathology, anomaly or previous treatment that could change properties of rectal wall or insertion and use of TRUS
- Unable to stop taking antiplatelet medications or other blood thinning agents
- Known allergy to nickel
- Allergic to medication required by the study such as MRI contrast or anesthesia
- Any significant medical history that would pose an unreasonable risk or make the subject unsuitable for the study
- Any cognitive or psychiatric condition that interferes with or precludes direct and accurate communication with the study Investigator regarding the study or affects the ability to complete the study quality of life questionnaires
- Subject currently participating in other premarket investigational studies unless approved by Sponsor in writing
- Subject is considered vulnerable such as incarcerated or cognitively impaired.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT05683691
Contact: Gabrielle Robinson | (763) 951-0370 | grobinson@francismedical.com | |
Contact: Andrea Stone | (763) 951-0370 | astone@francismedical.com |

Responsible Party: | Francis Medical Inc. |
ClinicalTrials.gov Identifier: | NCT05683691 |
Other Study ID Numbers: |
4760-001 |
First Posted: | January 13, 2023 Key Record Dates |
Last Update Posted: | November 28, 2023 |
Last Verified: | November 2023 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | Yes |
Device Product Not Approved or Cleared by U.S. FDA: | Yes |
Prostatic Neoplasms Genital Neoplasms, Male Urogenital Neoplasms Neoplasms by Site Neoplasms Genital Diseases, Male Genital Diseases Urogenital Diseases Prostatic Diseases Male Urogenital Diseases |
Acetaminophen, aspirin, caffeine drug combination Anti-Inflammatory Agents, Non-Steroidal Analgesics, Non-Narcotic Analgesics Sensory System Agents Peripheral Nervous System Agents Physiological Effects of Drugs Anti-Inflammatory Agents Antirheumatic Agents |