Trial Outcomes & Findings for Waterjet Ablation Therapy for Endoscopic Resection of Prostate Tissue II (NCT NCT03123250)

NCT ID: NCT03123250

Last Updated: 2023-06-28

Results Overview

The percentage of subjects with adverse events rated as probably or definitely related to the study procedure classified as Clavien-Dindo Grade 2 or higher or any Grade 1 event resulting in persistent disability (e.g. ejaculatory disorder or erectile dysfunction) evidenced through 3 months post treatment.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

101 participants

Primary outcome timeframe

3 months post-treatment

Results posted on

2023-06-28

Participant Flow

Participant milestones

Participant milestones
Measure
Aquablation Procedure
Aquablation: To utilizes proprietary heat-free high-velocity waterjet technology to resect and remove prostate tissue using the AQUABEAM system, which is a personalized image-guided tissue removal system.
Treatment
STARTED
101
Treatment
COMPLETED
101
Treatment
NOT COMPLETED
0
1 Month Follow-Up
STARTED
101
1 Month Follow-Up
COMPLETED
101
1 Month Follow-Up
NOT COMPLETED
0
3 Months Follow-Up
STARTED
99
3 Months Follow-Up
COMPLETED
99
3 Months Follow-Up
NOT COMPLETED
0
6 Months Follow-Up
STARTED
100
6 Months Follow-Up
COMPLETED
100
6 Months Follow-Up
NOT COMPLETED
0
12 Months Follow-Up
STARTED
96
12 Months Follow-Up
COMPLETED
96
12 Months Follow-Up
NOT COMPLETED
0
24 Months Follow-Up
STARTED
86
24 Months Follow-Up
COMPLETED
86
24 Months Follow-Up
NOT COMPLETED
0
36 Months Follow-Up
STARTED
82
36 Months Follow-Up
COMPLETED
82
36 Months Follow-Up
NOT COMPLETED
0
48 Months Follow-Up
STARTED
66
48 Months Follow-Up
COMPLETED
66
48 Months Follow-Up
NOT COMPLETED
0
60 Months Follow Up
STARTED
62
60 Months Follow Up
COMPLETED
60
60 Months Follow Up
NOT COMPLETED
2

Reasons for withdrawal

Reasons for withdrawal
Measure
Aquablation Procedure
Aquablation: To utilizes proprietary heat-free high-velocity waterjet technology to resect and remove prostate tissue using the AQUABEAM system, which is a personalized image-guided tissue removal system.
60 Months Follow Up
Withdrawal by Subject
2

Baseline Characteristics

Waterjet Ablation Therapy for Endoscopic Resection of Prostate Tissue II

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Aquablation Procedure
n=101 Participants
Aquablation: To utilizes proprietary heat-free high-velocity waterjet technology to resect and remove prostate tissue using the AQUABEAM system, which is a personalized image-guided tissue removal system.
Age, Continuous
67.5 years
STANDARD_DEVIATION 6.6 • n=93 Participants
Sex: Female, Male
Female
0 Participants
n=93 Participants
Sex: Female, Male
Male
101 Participants
n=93 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
9 Participants
n=93 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
92 Participants
n=93 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=93 Participants
Race/Ethnicity, Customized
Race · Asian
5 Participants
n=93 Participants
Race/Ethnicity, Customized
Race · Black
6 Participants
n=93 Participants
Race/Ethnicity, Customized
Race · White
88 Participants
n=93 Participants
Race/Ethnicity, Customized
Race · Other
2 Participants
n=93 Participants
Region of Enrollment
Canada
19 participants
n=93 Participants
Region of Enrollment
United States
82 participants
n=93 Participants
Body mass index
28.4 kg/m^2
STANDARD_DEVIATION 4.2 • n=93 Participants
Prostate size (TRUS)
107.4 cc
STANDARD_DEVIATION 22.1 • n=93 Participants
International Prostate Symptom Score (IPSS)
23.2 score on a scale
STANDARD_DEVIATION 6.3 • n=93 Participants

PRIMARY outcome

Timeframe: 3 months post-treatment

The percentage of subjects with adverse events rated as probably or definitely related to the study procedure classified as Clavien-Dindo Grade 2 or higher or any Grade 1 event resulting in persistent disability (e.g. ejaculatory disorder or erectile dysfunction) evidenced through 3 months post treatment.

Outcome measures

Outcome measures
Measure
Aquablation Procedure
n=101 Participants
Aquablation: To utilizes proprietary heat-free high-velocity waterjet technology to resect and remove prostate tissue using the AQUABEAM system, which is a personalized image-guided tissue removal system.
Incidence of Clavien-Dindo Adverse Events (Percentage of Participants) Through 3 Months Post Treatment
45.5 percentage

PRIMARY outcome

Timeframe: 3 months post-treatment

Population: The number of participants analyzed for this outcome measure consist of the participants who completed the IPSS questionnaire at 3 months post-treatment.

The change in total IPSS score at 3 months as compared to baseline. The objective of the International Prostate Symptom Score (IPSS) is to capture the severity of urinary symptoms related to benign prostatic hyperplasia IPSS ranges from 0 to 35. A higher score indicates a worse outcome.

Outcome measures

Outcome measures
Measure
Aquablation Procedure
n=95 Participants
Aquablation: To utilizes proprietary heat-free high-velocity waterjet technology to resect and remove prostate tissue using the AQUABEAM system, which is a personalized image-guided tissue removal system.
Change in Total International Prostate Symptom Score (IPSS) Score at 3 Months as Compared to Baseline
-16.5 score on a scale
Interval -18.1 to -14.8

POST_HOC outcome

Timeframe: 60 months post-treatment

The change in total IPSS score at 60 months as compared to baseline The objective of the International Prostate Symptom Score (IPSS) is to capture the severity of urinary symptoms related to benign prostatic hyperplasia IPSS ranges from 0 to 35. A higher score indicates a worse outcome.

Outcome measures

Outcome data not reported

Adverse Events

Aquablation Procedure

Serious events: 18 serious events
Other events: 82 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Aquablation Procedure
n=101 participants at risk
Aquablation: To utilizes proprietary heat-free high-velocity waterjet technology to resect and remove prostate tissue using the AQUABEAM system, which is a personalized image-guided tissue removal system.
Surgical and medical procedures
Bleeding
8.9%
9/101 • Number of events 9 • 2 years
Cardiac disorders
Cardiac
3.0%
3/101 • Number of events 3 • 2 years
Nervous system disorders
Cerebrovascular accident
0.99%
1/101 • Number of events 1 • 2 years
General disorders
Multi-system organ failure
0.99%
1/101 • Number of events 1 • 2 years
Renal and urinary disorders
Urinary incontinence
0.99%
1/101 • Number of events 1 • 2 years
General disorders
Other
3.0%
3/101 • Number of events 3 • 2 years
Reproductive system and breast disorders
Scrotal edema
2.0%
2/101 • Number of events 3 • 2 years
Renal and urinary disorders
Urinary retention
0.99%
1/101 • Number of events 1 • 2 years

Other adverse events

Other adverse events
Measure
Aquablation Procedure
n=101 participants at risk
Aquablation: To utilizes proprietary heat-free high-velocity waterjet technology to resect and remove prostate tissue using the AQUABEAM system, which is a personalized image-guided tissue removal system.
Surgical and medical procedures
Bleeding
7.9%
8/101 • 2 years
Renal and urinary disorders
Dysuria
11.9%
12/101 • 2 years
Reproductive system and breast disorders
Ejaculatory dysfunction
22.8%
23/101 • 2 years
General disorders
Pain
5.9%
6/101 • 2 years
Renal and urinary disorders
Urinary incontinence
15.8%
16/101 • 2 years
Infections and infestations
Urinary tract infection
11.9%
12/101 • 2 years
General disorders
Other
13.9%
14/101 • 2 years

Additional Information

Angela Lee

PROCEPT BioRobotics Corporation

Phone: 650-232-7215

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place

Restriction type: GT60