Waterjet Ablation Therapy for Endoscopic Resection of Prostate Tissue (WATER)

NCT ID: NCT02505919

Last Updated: 2023-07-03

Study Results

Results available

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

184 participants

Study Classification

INTERVENTIONAL

Study Start Date

2015-10-30

Study Completion Date

2021-12-16

Brief Summary

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A prospective multicenter randomized blinded study comparing Aquablation of the prostate with the AQUABEAM System and TURP for the treatment of Lower Urinary Tract Symptoms (LUTS). The primary endpoints for safety and effectiveness were measured at 3 and 6 months, respectively, and subjects were followed out to 5 years to collect long-term clinical data.

Detailed Description

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Conditions

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Benign Prostatic Hyperplasia (BPH)

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Investigators
All study subjects and the study site follow-up team are blinded to the assigned treatment until the year 3 follow-up.

Study Groups

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Treatment

AQUABEAM System

Group Type EXPERIMENTAL

AQUABEAM System

Intervention Type DEVICE

The AQUABEAM system, a personalized image-guided tissue removal system, utilizes proprietary heat-free high-velocity waterjet technology to resect and remove prostate tissue.

Active Comparator

Transurethral Resection of the Prostate (TURP)

Group Type ACTIVE_COMPARATOR

Transurethral Resection of the Prostate (TURP)

Intervention Type PROCEDURE

Transurethral resection of the prostate (TURP) is a type of prostate surgery done to relieve moderate to severe urinary symptoms caused by an enlarged prostate, a condition known as benign prostatic hyperplasia (BPH)

Interventions

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AQUABEAM System

The AQUABEAM system, a personalized image-guided tissue removal system, utilizes proprietary heat-free high-velocity waterjet technology to resect and remove prostate tissue.

Intervention Type DEVICE

Transurethral Resection of the Prostate (TURP)

Transurethral resection of the prostate (TURP) is a type of prostate surgery done to relieve moderate to severe urinary symptoms caused by an enlarged prostate, a condition known as benign prostatic hyperplasia (BPH)

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* Subject has diagnosis of lower urinary tract symptoms due to benign prostatic enlargement causing bladder outlet obstruction.
* Age from 45 to 80 years.

Exclusion Criteria

* Subject has an International Prostate Symptom Score (IPSS) score greater than or equal to 12 measured at the baseline visit.
* Subject has a serum creatinine that is within the normal range for the laboratory at the study center (or documentation of clinical insignificance in the subject's medical record by the investigator if outside the normal range) and measured ≤ 30 days prior to the date of surgery.
* History of inadequate response, contraindication, or refusal to medical therapy.


* Body Mass Index (BMI) ≥ 42.
* History of prostate cancer or current/suspected bladder cancer.
* Prostate cancer should be ruled out before participation to the satisfaction of the investigator if Prostate-Specific Antigen (PSA) is above acceptable thresholds.
* Subjects with a history of actively treated bladder cancer within the past two (2) years.
* Bladder calculus or clinically significant bladder diverticulum (e.g., pouch size \>20% of full bladder size).
* Active infection, including urinary tract infection.
* Prostatitis treated with antibiotics within 1 year of enrollment.
* Ever been diagnosed with a urethral stricture, meatal stenosis, or bladder neck contracture.
* Subject has damage to external urinary sphincter .
* Subject has diagnosis of stress urinary incontinence that requires treatment or daily pad or device use.
* Post-Void Residual (PVR) \> 300 mL.
* Urinary retention at time of enrollment or subject has been catheterized in the 14 days prior to the surgical procedure.
* Subject has a history of intermittent self-catheterization.
* Previous prostate surgery or history of other lower urinary tract surgery such as e.g. urinary diversion, artificial urinary sphincter or penile prosthesis.
* Subjects on anticoagulants (if medication cannot be stopped before and after procedure) or known coagulopathy (except aspirin below 100mg/d).
* Any severe illness that would prevent complete study participation or confound study results.
* Participants using systematic immune-suppressants including corticosteroids; unable to withhold non-steroidal anti-inflammatory agents (Nonsteroidal anti-inflammatory drugs (NSAIDs), including aspirin) for 3-5 days prior to treatment except for low dose aspirin (e.g. less than or equal to 100mg).
* Participants using anticholinergics specifically for bladder problems. Use of medications with anticholinergic properties is allowable provided the patient does not have documented adverse urinary side effects from these medications.
* Contraindication to general or spinal anesthesia.
* Subject has any other disease or condition(s) that would interfere with completion of the study and follow up assessments, would increase risks of the procedure, or in the judgment of the investigator would potentially interfere with compliance to this study or would adversely affect outcomes.
* Subject is unwilling to accept a transfusion should one be required.
Minimum Eligible Age

45 Years

Maximum Eligible Age

80 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

No

Sponsors

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PROCEPT BioRobotics

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Peter Gilling, M.D.

Role: PRINCIPAL_INVESTIGATOR

Urology BOP

Claus Roehrborn, M.D.

Role: PRINCIPAL_INVESTIGATOR

UT Southwestern Medical Center

Locations

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Urology Centers of Alabama

Birmingham, Alabama, United States

Site Status

San Diego Clinical Trials

La Mesa, California, United States

Site Status

University of Southern California, Institute of Urology

Los Angeles, California, United States

Site Status

Urology Associates, P.C.

Englewood, Colorado, United States

Site Status

Adult & Pediatric Urology P.C.

Omaha, Nebraska, United States

Site Status

Albany Medical College

Albany, New York, United States

Site Status

Weill Cornell Medical College

New York, New York, United States

Site Status

Wake Forest School of Medicine

Winston-Salem, North Carolina, United States

Site Status

UT Southwestern Medical Center

Dallas, Texas, United States

Site Status

Houston Metro Urology

Houston, Texas, United States

Site Status

University of Vermont College of Medicine

Burlington, Vermont, United States

Site Status

Virginia Urology

Richmond, Virginia, United States

Site Status

Royal Melbourne Hospital

Melbourne, Victoria, Australia

Site Status

Tauranga Urology Research Ltd.

Tauranga, , New Zealand

Site Status

Frimley Park Hospital

Frimley, Surrey, United Kingdom

Site Status

Princess of Wales Hospital

Bridgend, Wales, United Kingdom

Site Status

Addenbrooke's Treatment Center

Cambridge, , United Kingdom

Site Status

Countries

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United States Australia New Zealand United Kingdom

References

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Gilling P, Barber N, Bidair M, Anderson P, Sutton M, Aho T, Kramolowsky E, Thomas A, Cowan B, Kaufman RP Jr, Trainer A, Arther A, Badlani G, Plante M, Desai M, Doumanian L, Te AE, DeGuenther M, Roehrborn C. WATER: A Double-Blind, Randomized, Controlled Trial of Aquablation(R) vs Transurethral Resection of the Prostate in Benign Prostatic Hyperplasia. J Urol. 2018 May;199(5):1252-1261. doi: 10.1016/j.juro.2017.12.065. Epub 2018 Jan 31.

Reference Type BACKGROUND
PMID: 29360529 (View on PubMed)

Gilling PJ, Barber N, Bidair M, Anderson P, Sutton M, Aho T, Kramolowsky E, Thomas A, Cowan B, Roehrborn C. Randomized Controlled Trial of Aquablation versus Transurethral Resection of the Prostate in Benign Prostatic Hyperplasia: One-year Outcomes. Urology. 2019 Mar;125:169-173. doi: 10.1016/j.urology.2018.12.002. Epub 2018 Dec 12.

Reference Type BACKGROUND
PMID: 30552937 (View on PubMed)

Gilling P, Barber N, Bidair M, Anderson P, Sutton M, Aho T, Kramolowsky E, Thomas A, Cowan B, Kaufman RP Jr, Trainer A, Arther A, Badlani G, Plante M, Desai M, Doumanian L, Te AE, DeGuenther M, Roehrborn C. Two-Year Outcomes After Aquablation Compared to TURP: Efficacy and Ejaculatory Improvements Sustained. Adv Ther. 2019 Jun;36(6):1326-1336. doi: 10.1007/s12325-019-00952-3. Epub 2019 Apr 26.

Reference Type BACKGROUND
PMID: 31028614 (View on PubMed)

Gilling P, Barber N, Bidair M, Anderson P, Sutton M, Aho T, Kramolowsky E, Thomas A, Cowan B, Kaufman RP Jr, Trainer A, Arther A, Badlani G, Plante M, Desai M, Doumanian L, Te AE, DeGuenther M, Roehrborn C. Three-year outcomes after Aquablation therapy compared to TURP: results from a blinded randomized trial. Can J Urol. 2020 Feb;27(1):10072-10079.

Reference Type BACKGROUND
PMID: 32065861 (View on PubMed)

Gilling PJ, Barber N, Bidair M, Anderson P, Sutton M, Aho T, Kramolowsky E, Thomas A, Kaufman RP Jr, Badlani G, Plante M, Desai M, Doumanian L, Te AE, Roehrborn CG. Five-year outcomes for Aquablation therapy compared to TURP: results from a double-blind, randomized trial in men with LUTS due to BPH. Can J Urol. 2022 Feb;29(1):10960-10968.

Reference Type BACKGROUND
PMID: 35150215 (View on PubMed)

Pimentel MA, Yassaie O, Gilling P. Urodynamic Outcomes After Aquablation. Urology. 2019 Apr;126:165-170. doi: 10.1016/j.urology.2019.01.020. Epub 2019 Feb 2.

Reference Type DERIVED
PMID: 30721737 (View on PubMed)

Chughtai B, Thomas D. Pooled Aquablation Results for American Men with Lower Urinary Tract Symptoms due to Benign Prostatic Hyperplasia in Large Prostates (60-150 cc). Adv Ther. 2018 Jun;35(6):832-838. doi: 10.1007/s12325-018-0722-0. Epub 2018 Jun 5.

Reference Type DERIVED
PMID: 29873008 (View on PubMed)

Provided Documents

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Document Type: Study Protocol

View Document

Document Type: Statistical Analysis Plan

View Document

Other Identifiers

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TP0038

Identifier Type: -

Identifier Source: org_study_id

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