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Focal MR-Guided Focused Ultrasound Treatment of Localized Intermediate Risk Prostate Lesions

Focal MR-Guided Focused Ultrasound Treatment of Localized Intermediate Risk Prostate Lesions

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01657942
Enrollment
101
Registered
2012-08-06
Start date
2013-10-31
Completion date
2021-05-31
Last updated
2024-11-13

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

Conditions

Localized Intermediate Risk Prostate Lesions

Keywords

MRgFUS, Prostate, Intermediate Risk Prostate Lesions, Focal Prostate treatment, InSightec, ExAblate, Non-invasive, Prostate cancer, Gleason 7

Brief summary

The hypothesis of this study is that focal treatment with ExAblate MRgFUS has the potential to be an effective non-invasive treatment for intermediate risk, organ-confined prostate lesions, with a low incidence of morbidity. The study hypothesis will be tested by measuring treatment-related safety and initial effectiveness parameters in the ExAblate MRgFUS treated patients, as described above.

Detailed description

Objective of this pivotal trial is to assess safety and initial effectiveness of ExAblate MRgFUS in the treatment of intermediate risk, localized (organ confined) prostate lesions. ExAblate treatment will be implemented as a focal lesion-selective therapy, directed at pre-defined volume(s)/sector(s) in the prostate, identified by mapping biopsy and multi-parametric MRI, rather than a whole gland or hemi-ablation treatment. Safety: evaluate incidence and severity of adverse events associated with ExAblate's MRgFUS focal treatment of intermediate risk organ confined prostate lesions. The risk of ExAblate treatment-related incontinence and impotence will also be assessed in this study. Effectiveness: determine the lesion control effect of ExAblate's MRgFUS focal treatment of intermediate risk organ-confined prostate lesions (confirmed by IMAGE-guided mapping biopsy results).

Interventions

DEVICEExAblate MR Guided Focused Ultrasound

ExAblate MR Guided Focused Ultrasound - Local treatment of prostate lesions using Magnetic Resonance Imaging guided endorectally applied focused ultrasound energy.

Sponsors

InSightec
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Biopsy proven adenocarcinoma of the prostate (using a IMAGE-guided 14+ core mapping biopsy), and targeted cores as needed obtained up to 6 months prior to scheduled treatment * Patient with intermediate risk, early-stage organ-confined prostate cancer (T1a up to T2b, N0, M0) and voluntarily chooses ExAblate thermal ablation as the non-invasive treatment, who may currently be on watchful waiting or active surveillance and not in need of imminent radical therapy. * Patient with PSA less than or equal to 20 ng/mL * Gleason score 7 (4 + 3 or 3 + 4), based on mapping prostate biopsy, with no more than 15mm cancer in maximal linear dimension in any single core * Single hemilateral index Gleason 7 lesion, identified in the prostate based on biopsy mapping with supporting MRI; may have secondary Gleason 6 lesion on ipsilateral or contralateral side confirmed with biopsy and/or MRI

Exclusion criteria

* Contraindications to MRI * History of orchiectomy, PCa-specific chemotherapy, brachytherapy, cryotherapy, Photodynamic therapy or radical prostatectomy for treatment of prostate cancer; any prior radiation therapy to the pelvis for prostate cancer or any other malignancy * Patient under medications that can affect PSA for the last 3 months prior to MRgFUS treatment (Androgen Deprivation Treatment; alpha reductase inhibitors) * Individuals who are not able or willing to tolerate the required prolonged stationary supine position during treatment (approximately 3 hrs. sonication time) * Any rectal pathology, anomaly or previous treatment, which could change acoustic properties of rectal wall or prevent safe probe insertion (e.g., stenosis, fibrosis, inflammatory bowel disease, etc.) * Evidence of distant prostate cancer, i.e., including lymph nodes and/or metastasis of cancer on imaging * Bladder cancer * Urethral stricture/bladder neck contracture * Prostatitis NIH categories I, II and III * Implant near (\<1 cm) the prostate

Design outcomes

Primary

MeasureTime frameDescription
Number of Device and Procedure Related Adverse Events12 months Post TreatmentThe cumulative sum of adverse events was followed through Month 12 of the study.
Percentage of Subjects With NO Gleason Grade Group (GGG) Tissue in the Planned Region of Treatment (ROT) at 6 Months.6 Months Post TreatmentThe first primary effectiveness endpoint is within area of treatment (Region of Treatment, ROT) prostate biopsy occurring at 6-months post-treatment. Positive biopsy was defined as any Gleason Grade Group (GGG) tissue identified within the area of planned Exablate ROT. Negative biopsy was defined No Gleason Grade Group (GGG) tissue within the area of planned ROT.
Percentage of Subjects Showing a Reduction in PSA Value (Prostate Specific Antigen) From Baseline to 6-Months6-months Post TreatmentThe second primary effectiveness endpoint is the percentage of subjects experiencing a reduction in PSA value (Prostate Specific Antigen) from baseline to 6-months post-treatment. PSA values that increased or remained the same were considered an increase. Increased Prostate Specific Antigen levels in the blood is a common indication of prostate cancer. PSA results at 6 months - Value of ≤ 10ng/mL (Yes/No)
Percentage of Subjects With Non-Perfused Volume (NPV) Entirely Covered Target Gleason Grade Group (GGG) Tissue at Treatment.6 Months Post TreatmentThe final primary effectiveness endpoint is percentage of subjects with NPV complete coverage of targeted Gleason tissue at treatment. NPV (non-perfused volume) is the volume of tissue ablated/treated, a measure of the completeness/effectiveness of the ablation.

Secondary

MeasureTime frameDescription
International Consultation on Incontinence Questionnaire (ICIQ-SF). Urinary Incontinence (ICIQ) Total ScoreBaseline, 3 Months, 6 Months, 9 Months, 12 Months.Urinary incontinence (ICIQ) Total Score (Score range: 0-21) is a simple questionnaire for evaluating the frequency, severity, and impact of urinary incontinence. High scores indicate greater impairment. Lower scores indicate better outcomes. This questionnaire assesses urinary incontinence and its impact on quality of life (QoL). So, a lower score implies less frequent and less severe incontinence, which is generally considered favorable.
International Prostate Symptom Score (IPSS Total Score)Baseline, 3 Months, 6 Months, 9 Months, 12 Months.High scores indicate worse symptomology. The total I-PSS score can range from 0 (asymptomatic) to 35 (very symptomatic). Additionally, there's a question about quality of life due to urinary symptoms, where patients rate their feelings from delighted to terrible regarding their current condition. This assessment helps clinicians understand the severity of BPH symptoms and guide treatment decisions.
Prostate Specific Antigen (PSA)Baseline, 6 Months, 12 MonthsProstate Specific Antigen (PSA) concentration in the blood is commonly measured to screen for prostate cancer. Prostate Specific Antigen (PSA) was reported as a primary endpoint. Here it is presented to show levels at 6 Months and 12 Months post-treatment compared to Baseline (pre-treatment). Elevated PSA suggests potential cancer.
International Index of Erectile Function (IIEF-15) Erectile Dysfunction Overall SatisfactionBaseline, 3 Months, 6 Months, 9 Months, 12 Months.IIEF-15 Erectile Dysfunction Overall Satisfaction (IIEF-15 Overall Satisfaction range: 0-10). Low scores are worse.
International Prostate Symptom Score (IPSS) - Quality of Life ScoreBaseline, 3 Months, 6 Months, 9 Months, 12 Months.IPSS Urinary Symptoms (IPSS-QoL Score range: 0-5). Question 7 of the IPSS, the Quality-of-Life question, is 7. Nocturia: How many times do you typically get up at night to urinate? (Select from 0 to 5). Zero (0) suggests no interference with sleep and 5 suggests greater interference with sleep. Thus, high scores indicate worse quality of life.
Functional Assessment of Cancer Therapy - General (Fact-G) Total ScoreBaseline, 3 Months, 6 Months, 9 Months, 12 Months.The total FACT-G score ranges from 0 to 108 and is the summation of 4 subscale scores. The subscale scores are added to obtain the total score, which is calculated using a five-point scale from 0 (not at all) to 4 (very much). A higher FACT-G score indicates better overall well-being and quality of life. The FACT-G is an alternative scoring method to the Trial Outcome Index (TOI) which is also reported in this study.
Functional Assessment of Cancer Therapy - Prostate (Fact P) Total ScoreBaseline, 3 Months, 6 Months, 9 Months, 12 MonthsThe Fact-P Total Score (Score range: 0-156) is a comprehensive multidimensional quality of life measure designed specifically for patients with prostate cancer. It is a 39-item assessment in a 5-point (0-4) Likert-type Scale. Higher scores represent better symptomology, functioning and quality of life.
Functional Assessment of Cancer Therapy - Prostate (Fact-P) Trial Outcomes Index (TOI)Baseline, 3 Months, 6 Months, 9 Months, 12 Months.Functional Assessment of Cancer Therapy - P (Fact-P) Trial Outcomes Index (TOI, Score range: 1-104). An alternative scoring method to the Fact-G Total is the Trial Outcome Index (TOI), which is the sum of the Physical, Functional, and Lung Cancer Subscales. The TOI is reported to be an efficient and precise summary index of physical and functional outcomes. Higher scores indicate less symptomology and better physical and functional outcomes.

Countries

United States

Participant flow

Recruitment details

The study was multi-center, prospective, single arm, observational trial conducted in the United States where subjects were treated and followed for 12 months. Males over 50 years of age (median age of 63 years) with a single, MRI-visible, hemilateral lesion of biopsy proven Gleason Grade Group 2 (3+4) or 3 (4+3) adenocarcinoma and with a PSA less than or equal to 20 ng/mL were treated with the Exablate 2100 Prostate System.

Participants by arm

ArmCount
Exablate MR Guided Focus Ultrasound Treatment of Localized Intermediate Risk Prostate Lesions
Exablate MR Guided Focused Ultrasound for the local treatment of intermediate prostate lesions using Magnetic Resonance guided focused ultrasound energy.
101
Total101

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyAlternative Treatment7
Overall StudyLost to Follow-up1

Baseline characteristics

CharacteristicExablate MR Guided Focus Ultrasound Treatment of Localized Intermediate Risk Prostate Lesions
Age, Continuous
Age
62.9 Years
STANDARD_DEVIATION 6.7
Biopsy proven adenocarcinoma of the prostate101 Participants
BMI [kg/m^2]28.5 kg/m^2
STANDARD_DEVIATION 4.5
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
1 Participants
Race (NIH/OMB)
Black or African American
7 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
3 Participants
Race (NIH/OMB)
White
90 Participants
Region of Enrollment
United States
101 participants
Sex: Female, Male
Female
0 Participants
Sex: Female, Male
Male
101 Participants
Weight [kg]91.3 kg
STANDARD_DEVIATION 17.3

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 101
other
Total, other adverse events
24 / 101
serious
Total, serious adverse events
0 / 101

Outcome results

Primary

Number of Device and Procedure Related Adverse Events

The cumulative sum of adverse events was followed through Month 12 of the study.

Time frame: 12 months Post Treatment

Population: Adverse Events and Serious Adverse Events are reported in the Adverse Events Section.

ArmMeasureValue (NUMBER)
Exablate MR Guided Focus UltrasoundNumber of Device and Procedure Related Adverse Events24 Number of Adverse Events
Primary

Percentage of Subjects Showing a Reduction in PSA Value (Prostate Specific Antigen) From Baseline to 6-Months

The second primary effectiveness endpoint is the percentage of subjects experiencing a reduction in PSA value (Prostate Specific Antigen) from baseline to 6-months post-treatment. PSA values that increased or remained the same were considered an increase. Increased Prostate Specific Antigen levels in the blood is a common indication of prostate cancer. PSA results at 6 months - Value of ≤ 10ng/mL (Yes/No)

Time frame: 6-months Post Treatment

ArmMeasureValue (NUMBER)
Exablate MR Guided Focus UltrasoundPercentage of Subjects Showing a Reduction in PSA Value (Prostate Specific Antigen) From Baseline to 6-Months91.1 Percentage of Subjects
Primary

Percentage of Subjects With NO Gleason Grade Group (GGG) Tissue in the Planned Region of Treatment (ROT) at 6 Months.

The first primary effectiveness endpoint is within area of treatment (Region of Treatment, ROT) prostate biopsy occurring at 6-months post-treatment. Positive biopsy was defined as any Gleason Grade Group (GGG) tissue identified within the area of planned Exablate ROT. Negative biopsy was defined No Gleason Grade Group (GGG) tissue within the area of planned ROT.

Time frame: 6 Months Post Treatment

ArmMeasureValue (NUMBER)
Exablate MR Guided Focus UltrasoundPercentage of Subjects With NO Gleason Grade Group (GGG) Tissue in the Planned Region of Treatment (ROT) at 6 Months.91.1 Percentage of Subjects
Primary

Percentage of Subjects With Non-Perfused Volume (NPV) Entirely Covered Target Gleason Grade Group (GGG) Tissue at Treatment.

The final primary effectiveness endpoint is percentage of subjects with NPV complete coverage of targeted Gleason tissue at treatment. NPV (non-perfused volume) is the volume of tissue ablated/treated, a measure of the completeness/effectiveness of the ablation.

Time frame: 6 Months Post Treatment

ArmMeasureValue (NUMBER)
Exablate MR Guided Focus UltrasoundPercentage of Subjects With Non-Perfused Volume (NPV) Entirely Covered Target Gleason Grade Group (GGG) Tissue at Treatment.87.1 Percentage of Subjects
Secondary

Functional Assessment of Cancer Therapy - General (Fact-G) Total Score

The total FACT-G score ranges from 0 to 108 and is the summation of 4 subscale scores. The subscale scores are added to obtain the total score, which is calculated using a five-point scale from 0 (not at all) to 4 (very much). A higher FACT-G score indicates better overall well-being and quality of life. The FACT-G is an alternative scoring method to the Trial Outcome Index (TOI) which is also reported in this study.

Time frame: Baseline, 3 Months, 6 Months, 9 Months, 12 Months.

Population: Deviations across visits resulted from missed visits and missed assessments.

ArmMeasureGroupValue (MEAN)Dispersion
Exablate MR Guided Focus UltrasoundFunctional Assessment of Cancer Therapy - General (Fact-G) Total Score9 Months97.3 score on a scaleStandard Deviation 7.7
Exablate MR Guided Focus UltrasoundFunctional Assessment of Cancer Therapy - General (Fact-G) Total Score6 Months64.0 score on a scaleStandard Deviation 10.8
Exablate MR Guided Focus UltrasoundFunctional Assessment of Cancer Therapy - General (Fact-G) Total ScoreBaseline94.8 score on a scaleStandard Deviation 10.8
Exablate MR Guided Focus UltrasoundFunctional Assessment of Cancer Therapy - General (Fact-G) Total Score3 Months95.7 score on a scaleStandard Deviation 8.5
Exablate MR Guided Focus UltrasoundFunctional Assessment of Cancer Therapy - General (Fact-G) Total Score12 Months95.3 score on a scaleStandard Deviation 10.8
Neurovascular Bundles and Urethra Not Included in TreatmentFunctional Assessment of Cancer Therapy - General (Fact-G) Total Score6 Months92.5 score on a scaleStandard Deviation 11
Neurovascular Bundles and Urethra Not Included in TreatmentFunctional Assessment of Cancer Therapy - General (Fact-G) Total ScoreBaseline94.5 score on a scaleStandard Deviation 8.8
Neurovascular Bundles and Urethra Not Included in TreatmentFunctional Assessment of Cancer Therapy - General (Fact-G) Total Score3 Months90.2 score on a scaleStandard Deviation 12.7
Neurovascular Bundles and Urethra Not Included in TreatmentFunctional Assessment of Cancer Therapy - General (Fact-G) Total Score9 Months92.3 score on a scaleStandard Deviation 10.7
Neurovascular Bundles and Urethra Not Included in TreatmentFunctional Assessment of Cancer Therapy - General (Fact-G) Total Score12 Months93.3 score on a scaleStandard Deviation 10.5
Total Exablate MR Guided Focus UltrasoundFunctional Assessment of Cancer Therapy - General (Fact-G) Total Score12 Months94.4 score on a scaleStandard Deviation 10.7
Total Exablate MR Guided Focus UltrasoundFunctional Assessment of Cancer Therapy - General (Fact-G) Total Score9 Months95.1 score on a scaleStandard Deviation 9.4
Total Exablate MR Guided Focus UltrasoundFunctional Assessment of Cancer Therapy - General (Fact-G) Total ScoreBaseline94.7 score on a scaleStandard Deviation 9.9
Total Exablate MR Guided Focus UltrasoundFunctional Assessment of Cancer Therapy - General (Fact-G) Total Score6 Months93.4 score on a scaleStandard Deviation 10.9
Total Exablate MR Guided Focus UltrasoundFunctional Assessment of Cancer Therapy - General (Fact-G) Total Score3 Months93.3 score on a scaleStandard Deviation 10.9
Secondary

Functional Assessment of Cancer Therapy - Prostate (Fact P) Total Score

The Fact-P Total Score (Score range: 0-156) is a comprehensive multidimensional quality of life measure designed specifically for patients with prostate cancer. It is a 39-item assessment in a 5-point (0-4) Likert-type Scale. Higher scores represent better symptomology, functioning and quality of life.

Time frame: Baseline, 3 Months, 6 Months, 9 Months, 12 Months

Population: Deviations from in the number of participants result from missed visits, assessments and early exits.

ArmMeasureGroupValue (MEAN)Dispersion
Exablate MR Guided Focus UltrasoundFunctional Assessment of Cancer Therapy - Prostate (Fact P) Total Score12 Months134.6 score on a scaleStandard Deviation 14.9
Exablate MR Guided Focus UltrasoundFunctional Assessment of Cancer Therapy - Prostate (Fact P) Total Score9 Months136.6 score on a scaleStandard Deviation 12.5
Exablate MR Guided Focus UltrasoundFunctional Assessment of Cancer Therapy - Prostate (Fact P) Total Score3 Months134.3 score on a scaleStandard Deviation 13.2
Exablate MR Guided Focus UltrasoundFunctional Assessment of Cancer Therapy - Prostate (Fact P) Total Score6 Months132.4 score on a scaleStandard Deviation 15.8
Exablate MR Guided Focus UltrasoundFunctional Assessment of Cancer Therapy - Prostate (Fact P) Total ScoreBaseline134.2 score on a scaleStandard Deviation 15.7
Neurovascular Bundles and Urethra Not Included in TreatmentFunctional Assessment of Cancer Therapy - Prostate (Fact P) Total Score9 Months129.2 score on a scaleStandard Deviation 14.5
Neurovascular Bundles and Urethra Not Included in TreatmentFunctional Assessment of Cancer Therapy - Prostate (Fact P) Total Score3 Months127.8 score on a scaleStandard Deviation 16.3
Neurovascular Bundles and Urethra Not Included in TreatmentFunctional Assessment of Cancer Therapy - Prostate (Fact P) Total Score6 Months130.5 score on a scaleStandard Deviation 12.9
Neurovascular Bundles and Urethra Not Included in TreatmentFunctional Assessment of Cancer Therapy - Prostate (Fact P) Total Score12 Months130.7 score on a scaleStandard Deviation 13
Neurovascular Bundles and Urethra Not Included in TreatmentFunctional Assessment of Cancer Therapy - Prostate (Fact P) Total ScoreBaseline134.3 score on a scaleStandard Deviation 11.6
Total Exablate MR Guided Focus UltrasoundFunctional Assessment of Cancer Therapy - Prostate (Fact P) Total ScoreBaseline134.2 score on a scaleStandard Deviation 14
Total Exablate MR Guided Focus UltrasoundFunctional Assessment of Cancer Therapy - Prostate (Fact P) Total Score12 Months132.9 score on a scaleStandard Deviation 14.2
Total Exablate MR Guided Focus UltrasoundFunctional Assessment of Cancer Therapy - Prostate (Fact P) Total Score3 Months131.4 score on a scaleStandard Deviation 14.9
Total Exablate MR Guided Focus UltrasoundFunctional Assessment of Cancer Therapy - Prostate (Fact P) Total Score9 Months137.7 score on a scaleStandard Deviation 13.4
Total Exablate MR Guided Focus UltrasoundFunctional Assessment of Cancer Therapy - Prostate (Fact P) Total Score6 Months131.6 score on a scaleStandard Deviation 14.6
Secondary

Functional Assessment of Cancer Therapy - Prostate (Fact-P) Trial Outcomes Index (TOI)

Functional Assessment of Cancer Therapy - P (Fact-P) Trial Outcomes Index (TOI, Score range: 1-104). An alternative scoring method to the Fact-G Total is the Trial Outcome Index (TOI), which is the sum of the Physical, Functional, and Lung Cancer Subscales. The TOI is reported to be an efficient and precise summary index of physical and functional outcomes. Higher scores indicate less symptomology and better physical and functional outcomes.

Time frame: Baseline, 3 Months, 6 Months, 9 Months, 12 Months.

Population: Deviations in sample size across visits are due to subjects missing visits, missing assessments, or exiting the study.

ArmMeasureGroupValue (MEAN)Dispersion
Exablate MR Guided Focus UltrasoundFunctional Assessment of Cancer Therapy - Prostate (Fact-P) Trial Outcomes Index (TOI)9 Months90.5 score on a scaleStandard Deviation 9.8
Exablate MR Guided Focus UltrasoundFunctional Assessment of Cancer Therapy - Prostate (Fact-P) Trial Outcomes Index (TOI)6 Months88.8 score on a scaleStandard Deviation 11.4
Exablate MR Guided Focus UltrasoundFunctional Assessment of Cancer Therapy - Prostate (Fact-P) Trial Outcomes Index (TOI)Baseline89.9 score on a scaleStandard Deviation 10.5
Exablate MR Guided Focus UltrasoundFunctional Assessment of Cancer Therapy - Prostate (Fact-P) Trial Outcomes Index (TOI)3 Months89.1 score on a scaleStandard Deviation 10.2
Exablate MR Guided Focus UltrasoundFunctional Assessment of Cancer Therapy - Prostate (Fact-P) Trial Outcomes Index (TOI)12 Months89.9 score on a scaleStandard Deviation 9.7
Neurovascular Bundles and Urethra Not Included in TreatmentFunctional Assessment of Cancer Therapy - Prostate (Fact-P) Trial Outcomes Index (TOI)6 Months86.9 score on a scaleStandard Deviation 9.1
Neurovascular Bundles and Urethra Not Included in TreatmentFunctional Assessment of Cancer Therapy - Prostate (Fact-P) Trial Outcomes Index (TOI)Baseline90.8 score on a scaleStandard Deviation 7.6
Neurovascular Bundles and Urethra Not Included in TreatmentFunctional Assessment of Cancer Therapy - Prostate (Fact-P) Trial Outcomes Index (TOI)3 Months86.0 score on a scaleStandard Deviation 10.2
Neurovascular Bundles and Urethra Not Included in TreatmentFunctional Assessment of Cancer Therapy - Prostate (Fact-P) Trial Outcomes Index (TOI)9 Months86.4 score on a scaleStandard Deviation 9.5
Neurovascular Bundles and Urethra Not Included in TreatmentFunctional Assessment of Cancer Therapy - Prostate (Fact-P) Trial Outcomes Index (TOI)12 Months87.7 score on a scaleStandard Deviation 8
Total Exablate MR Guided Focus UltrasoundFunctional Assessment of Cancer Therapy - Prostate (Fact-P) Trial Outcomes Index (TOI)12 Months88.9 score on a scaleStandard Deviation 9
Total Exablate MR Guided Focus UltrasoundFunctional Assessment of Cancer Therapy - Prostate (Fact-P) Trial Outcomes Index (TOI)9 Months88.7 score on a scaleStandard Deviation 9.9
Total Exablate MR Guided Focus UltrasoundFunctional Assessment of Cancer Therapy - Prostate (Fact-P) Trial Outcomes Index (TOI)Baseline90.3 score on a scaleStandard Deviation 9.3
Total Exablate MR Guided Focus UltrasoundFunctional Assessment of Cancer Therapy - Prostate (Fact-P) Trial Outcomes Index (TOI)6 Months88.0 score on a scaleStandard Deviation 10.4
Total Exablate MR Guided Focus UltrasoundFunctional Assessment of Cancer Therapy - Prostate (Fact-P) Trial Outcomes Index (TOI)3 Months87.7 score on a scaleStandard Deviation 10.3
Secondary

International Consultation on Incontinence Questionnaire (ICIQ-SF). Urinary Incontinence (ICIQ) Total Score

Urinary incontinence (ICIQ) Total Score (Score range: 0-21) is a simple questionnaire for evaluating the frequency, severity, and impact of urinary incontinence. High scores indicate greater impairment. Lower scores indicate better outcomes. This questionnaire assesses urinary incontinence and its impact on quality of life (QoL). So, a lower score implies less frequent and less severe incontinence, which is generally considered favorable.

Time frame: Baseline, 3 Months, 6 Months, 9 Months, 12 Months.

Population: Deviations from the overall number of participants are a result of missed visits, missed incomplete assessments, and early study exits

ArmMeasureGroupValue (MEAN)Dispersion
Exablate MR Guided Focus UltrasoundInternational Consultation on Incontinence Questionnaire (ICIQ-SF). Urinary Incontinence (ICIQ) Total Score9 Months2.0 score on a scaleStandard Deviation 2.6
Exablate MR Guided Focus UltrasoundInternational Consultation on Incontinence Questionnaire (ICIQ-SF). Urinary Incontinence (ICIQ) Total Score6 Months2.2 score on a scaleStandard Deviation 3.1
Exablate MR Guided Focus UltrasoundInternational Consultation on Incontinence Questionnaire (ICIQ-SF). Urinary Incontinence (ICIQ) Total ScoreBaseline1.2 score on a scaleStandard Deviation 2.2
Exablate MR Guided Focus UltrasoundInternational Consultation on Incontinence Questionnaire (ICIQ-SF). Urinary Incontinence (ICIQ) Total Score3 Months2.0 score on a scaleStandard Deviation 3
Exablate MR Guided Focus UltrasoundInternational Consultation on Incontinence Questionnaire (ICIQ-SF). Urinary Incontinence (ICIQ) Total Score12 Months2.0 score on a scaleStandard Deviation 2.8
Neurovascular Bundles and Urethra Not Included in TreatmentInternational Consultation on Incontinence Questionnaire (ICIQ-SF). Urinary Incontinence (ICIQ) Total Score6 Months2.0 score on a scaleStandard Deviation 2.6
Neurovascular Bundles and Urethra Not Included in TreatmentInternational Consultation on Incontinence Questionnaire (ICIQ-SF). Urinary Incontinence (ICIQ) Total ScoreBaseline1.5 score on a scaleStandard Deviation 2.8
Neurovascular Bundles and Urethra Not Included in TreatmentInternational Consultation on Incontinence Questionnaire (ICIQ-SF). Urinary Incontinence (ICIQ) Total Score3 Months2.2 score on a scaleStandard Deviation 2.7
Neurovascular Bundles and Urethra Not Included in TreatmentInternational Consultation on Incontinence Questionnaire (ICIQ-SF). Urinary Incontinence (ICIQ) Total Score9 Months2.1 score on a scaleStandard Deviation 2.7
Neurovascular Bundles and Urethra Not Included in TreatmentInternational Consultation on Incontinence Questionnaire (ICIQ-SF). Urinary Incontinence (ICIQ) Total Score12 Months1.8 score on a scaleStandard Deviation 2.4
Total Exablate MR Guided Focus UltrasoundInternational Consultation on Incontinence Questionnaire (ICIQ-SF). Urinary Incontinence (ICIQ) Total Score12 Months1.9 score on a scaleStandard Deviation 2.6
Total Exablate MR Guided Focus UltrasoundInternational Consultation on Incontinence Questionnaire (ICIQ-SF). Urinary Incontinence (ICIQ) Total Score9 Months2.0 score on a scaleStandard Deviation 2.6
Total Exablate MR Guided Focus UltrasoundInternational Consultation on Incontinence Questionnaire (ICIQ-SF). Urinary Incontinence (ICIQ) Total ScoreBaseline1.3 score on a scaleStandard Deviation 2.5
Total Exablate MR Guided Focus UltrasoundInternational Consultation on Incontinence Questionnaire (ICIQ-SF). Urinary Incontinence (ICIQ) Total Score6 Months2.1 score on a scaleStandard Deviation 2.9
Total Exablate MR Guided Focus UltrasoundInternational Consultation on Incontinence Questionnaire (ICIQ-SF). Urinary Incontinence (ICIQ) Total Score3 Months2.1 score on a scaleStandard Deviation 2.9
Secondary

International Index of Erectile Function (IIEF-15) Erectile Dysfunction Overall Satisfaction

IIEF-15 Erectile Dysfunction Overall Satisfaction (IIEF-15 Overall Satisfaction range: 0-10). Low scores are worse.

Time frame: Baseline, 3 Months, 6 Months, 9 Months, 12 Months.

Population: Deviations from the Overall Number of Participants Analyzed results from missed visits, missed or incomplete assessments, or early study exits.

ArmMeasureGroupValue (MEAN)Dispersion
Exablate MR Guided Focus UltrasoundInternational Index of Erectile Function (IIEF-15) Erectile Dysfunction Overall Satisfaction9 Months6.9 score on a scaleStandard Deviation 2.4
Exablate MR Guided Focus UltrasoundInternational Index of Erectile Function (IIEF-15) Erectile Dysfunction Overall Satisfaction6 Months7.0 score on a scaleStandard Deviation 2.7
Exablate MR Guided Focus UltrasoundInternational Index of Erectile Function (IIEF-15) Erectile Dysfunction Overall SatisfactionBaseline7.8 score on a scaleStandard Deviation 2.3
Exablate MR Guided Focus UltrasoundInternational Index of Erectile Function (IIEF-15) Erectile Dysfunction Overall Satisfaction3 Months6.8 score on a scaleStandard Deviation 2.7
Exablate MR Guided Focus UltrasoundInternational Index of Erectile Function (IIEF-15) Erectile Dysfunction Overall Satisfaction12 Months6.9 score on a scaleStandard Deviation 2.5
Neurovascular Bundles and Urethra Not Included in TreatmentInternational Index of Erectile Function (IIEF-15) Erectile Dysfunction Overall Satisfaction6 Months6.9 score on a scaleStandard Deviation 2.8
Neurovascular Bundles and Urethra Not Included in TreatmentInternational Index of Erectile Function (IIEF-15) Erectile Dysfunction Overall SatisfactionBaseline7.0 score on a scaleStandard Deviation 2.7
Neurovascular Bundles and Urethra Not Included in TreatmentInternational Index of Erectile Function (IIEF-15) Erectile Dysfunction Overall Satisfaction3 Months6.5 score on a scaleStandard Deviation 2.5
Neurovascular Bundles and Urethra Not Included in TreatmentInternational Index of Erectile Function (IIEF-15) Erectile Dysfunction Overall Satisfaction9 Months6.7 score on a scaleStandard Deviation 2.5
Neurovascular Bundles and Urethra Not Included in TreatmentInternational Index of Erectile Function (IIEF-15) Erectile Dysfunction Overall Satisfaction12 Months7.3 score on a scaleStandard Deviation 2.4
Total Exablate MR Guided Focus UltrasoundInternational Index of Erectile Function (IIEF-15) Erectile Dysfunction Overall Satisfaction12 Months7.1 score on a scaleStandard Deviation 2.5
Total Exablate MR Guided Focus UltrasoundInternational Index of Erectile Function (IIEF-15) Erectile Dysfunction Overall Satisfaction9 Months6.8 score on a scaleStandard Deviation 2.4
Total Exablate MR Guided Focus UltrasoundInternational Index of Erectile Function (IIEF-15) Erectile Dysfunction Overall SatisfactionBaseline7.4 score on a scaleStandard Deviation 2.5
Total Exablate MR Guided Focus UltrasoundInternational Index of Erectile Function (IIEF-15) Erectile Dysfunction Overall Satisfaction6 Months7.0 score on a scaleStandard Deviation 2.7
Total Exablate MR Guided Focus UltrasoundInternational Index of Erectile Function (IIEF-15) Erectile Dysfunction Overall Satisfaction3 Months6.7 score on a scaleStandard Deviation 2.6
Secondary

International Prostate Symptom Score (IPSS) - Quality of Life Score

IPSS Urinary Symptoms (IPSS-QoL Score range: 0-5). Question 7 of the IPSS, the Quality-of-Life question, is 7. Nocturia: How many times do you typically get up at night to urinate? (Select from 0 to 5). Zero (0) suggests no interference with sleep and 5 suggests greater interference with sleep. Thus, high scores indicate worse quality of life.

Time frame: Baseline, 3 Months, 6 Months, 9 Months, 12 Months.

Population: Deviations from the overall number of participants result from missed visits, missed assessments, and early study exits.

ArmMeasureGroupValue (MEAN)Dispersion
Exablate MR Guided Focus UltrasoundInternational Prostate Symptom Score (IPSS) - Quality of Life Score9 Months1.1 score on a scaleStandard Deviation 1.1
Exablate MR Guided Focus UltrasoundInternational Prostate Symptom Score (IPSS) - Quality of Life Score6 Months1.2 score on a scaleStandard Deviation 1.1
Exablate MR Guided Focus UltrasoundInternational Prostate Symptom Score (IPSS) - Quality of Life ScoreBaseline1.9 score on a scaleStandard Deviation 1.5
Exablate MR Guided Focus UltrasoundInternational Prostate Symptom Score (IPSS) - Quality of Life Score3 Months1.2 score on a scaleStandard Deviation 1.2
Exablate MR Guided Focus UltrasoundInternational Prostate Symptom Score (IPSS) - Quality of Life Score12 Months1.1 score on a scaleStandard Deviation 1
Neurovascular Bundles and Urethra Not Included in TreatmentInternational Prostate Symptom Score (IPSS) - Quality of Life Score6 Months1.3 score on a scaleStandard Deviation 1
Neurovascular Bundles and Urethra Not Included in TreatmentInternational Prostate Symptom Score (IPSS) - Quality of Life ScoreBaseline1.6 score on a scaleStandard Deviation 1.2
Neurovascular Bundles and Urethra Not Included in TreatmentInternational Prostate Symptom Score (IPSS) - Quality of Life Score3 Months1.5 score on a scaleStandard Deviation 1.2
Neurovascular Bundles and Urethra Not Included in TreatmentInternational Prostate Symptom Score (IPSS) - Quality of Life Score9 Months1.4 score on a scaleStandard Deviation 1
Neurovascular Bundles and Urethra Not Included in TreatmentInternational Prostate Symptom Score (IPSS) - Quality of Life Score12 Months1.4 score on a scaleStandard Deviation 1
Total Exablate MR Guided Focus UltrasoundInternational Prostate Symptom Score (IPSS) - Quality of Life Score12 Months1.2 score on a scaleStandard Deviation 1
Total Exablate MR Guided Focus UltrasoundInternational Prostate Symptom Score (IPSS) - Quality of Life Score9 Months1.2 score on a scaleStandard Deviation 1.1
Total Exablate MR Guided Focus UltrasoundInternational Prostate Symptom Score (IPSS) - Quality of Life ScoreBaseline1.8 score on a scaleStandard Deviation 1.4
Total Exablate MR Guided Focus UltrasoundInternational Prostate Symptom Score (IPSS) - Quality of Life Score6 Months1.2 score on a scaleStandard Deviation 1.1
Total Exablate MR Guided Focus UltrasoundInternational Prostate Symptom Score (IPSS) - Quality of Life Score3 Months1.3 score on a scaleStandard Deviation 1.2
Secondary

International Prostate Symptom Score (IPSS Total Score)

High scores indicate worse symptomology. The total I-PSS score can range from 0 (asymptomatic) to 35 (very symptomatic). Additionally, there's a question about quality of life due to urinary symptoms, where patients rate their feelings from delighted to terrible regarding their current condition. This assessment helps clinicians understand the severity of BPH symptoms and guide treatment decisions.

Time frame: Baseline, 3 Months, 6 Months, 9 Months, 12 Months.

Population: Deviations from the Overall Number of Participants Analyzed resulted from missed visits, missed assessments or early study exits.

ArmMeasureGroupValue (MEAN)Dispersion
Exablate MR Guided Focus UltrasoundInternational Prostate Symptom Score (IPSS Total Score)9 Months7.5 score on a scaleStandard Deviation 5.6
Exablate MR Guided Focus UltrasoundInternational Prostate Symptom Score (IPSS Total Score)6 Months7.5 score on a scaleStandard Deviation 6.5
Exablate MR Guided Focus UltrasoundInternational Prostate Symptom Score (IPSS Total Score)Baseline8.5 score on a scaleStandard Deviation 6.4
Exablate MR Guided Focus UltrasoundInternational Prostate Symptom Score (IPSS Total Score)3 Months8.1 score on a scaleStandard Deviation 6.5
Exablate MR Guided Focus UltrasoundInternational Prostate Symptom Score (IPSS Total Score)12 Months7.6 score on a scaleStandard Deviation 5.8
Neurovascular Bundles and Urethra Not Included in TreatmentInternational Prostate Symptom Score (IPSS Total Score)6 Months8.4 score on a scaleStandard Deviation 5.8
Neurovascular Bundles and Urethra Not Included in TreatmentInternational Prostate Symptom Score (IPSS Total Score)Baseline8.8 score on a scaleStandard Deviation 6
Neurovascular Bundles and Urethra Not Included in TreatmentInternational Prostate Symptom Score (IPSS Total Score)3 Months8.1 score on a scaleStandard Deviation 5.2
Neurovascular Bundles and Urethra Not Included in TreatmentInternational Prostate Symptom Score (IPSS Total Score)9 Months8.4 score on a scaleStandard Deviation 5.8
Neurovascular Bundles and Urethra Not Included in TreatmentInternational Prostate Symptom Score (IPSS Total Score)12 Months8.9 score on a scaleStandard Deviation 6.4
Total Exablate MR Guided Focus UltrasoundInternational Prostate Symptom Score (IPSS Total Score)12 Months8.2 score on a scaleStandard Deviation 6.1
Total Exablate MR Guided Focus UltrasoundInternational Prostate Symptom Score (IPSS Total Score)9 Months8.2 score on a scaleStandard Deviation 6
Total Exablate MR Guided Focus UltrasoundInternational Prostate Symptom Score (IPSS Total Score)Baseline8.6 score on a scaleStandard Deviation 6.2
Total Exablate MR Guided Focus UltrasoundInternational Prostate Symptom Score (IPSS Total Score)6 Months7.9 score on a scaleStandard Deviation 6.2
Total Exablate MR Guided Focus UltrasoundInternational Prostate Symptom Score (IPSS Total Score)3 Months8.1 score on a scaleStandard Deviation 6
Secondary

Prostate Specific Antigen (PSA)

Prostate Specific Antigen (PSA) concentration in the blood is commonly measured to screen for prostate cancer. Prostate Specific Antigen (PSA) was reported as a primary endpoint. Here it is presented to show levels at 6 Months and 12 Months post-treatment compared to Baseline (pre-treatment). Elevated PSA suggests potential cancer.

Time frame: Baseline, 6 Months, 12 Months

ArmMeasureGroupValue (MEAN)Dispersion
Exablate MR Guided Focus UltrasoundProstate Specific Antigen (PSA)Baseline6.4 ng/mLStandard Deviation 3.1
Exablate MR Guided Focus UltrasoundProstate Specific Antigen (PSA)6 Months3.3 ng/mLStandard Deviation 2.9
Exablate MR Guided Focus UltrasoundProstate Specific Antigen (PSA)12 Months3.2 ng/mLStandard Deviation 2.5

Source: ClinicalTrials.gov · Data processed: Feb 18, 2026