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Embosphere® PROstate Post Market Study

A Prospective Post Market Study of Patients With Symptomatic Benign Prostatic Hyperplasia Treated by Prostatic Artery Embolization With Embosphere® Microspheres

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT03527589
Acronym
PROstate
Enrollment
499
Registered
2018-05-17
Start date
2018-08-16
Completion date
2022-01-22
Last updated
2023-12-18

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

Conditions

Benign Prostatic Hyperplasia, Lower Urinary Tract Symptoms

Keywords

Prostatic Artery Embolization (PAE), Benign Prostatic Hyperplasia (BPH), Lower Urinary Tract Symptoms (LUTS), Embolization, Embolic, Embosphere Microsphere

Brief summary

Prostatic artery embolization with Embosphere Microspheres is a relatively new procedure. The goal of this post market study is to evaluate long-term safety and effectiveness in a 'real world' setting.

Detailed description

This is a prospective, open label post market study to evaluate the long-term safety and effectiveness of prostatic artery embolization (PAE) using Embosphere Microspheres. Up to 500 patients with lower urinary tract symptoms (LUTS) due to benign prostatic hyperplasia (BPH) will be enrolled in this single arm post market study. All patients at sites who meet eligibility criteria will be offered participation. Long term effectiveness of PAE on LUTS will be evaluated by International Prostate Symptom Score (IPSS) at baseline, 3 months, 12 months and 24 months. Safety will be assessed by evaluating device or procedure-related adverse events at the same time points, plus at 4 weeks following embolization. Erectile function will be assessed at baseline and 12 months by Sexual Health Inventory for Men (SHIM) score. Additional treatments for refractory or recurrent LUTS due to BPH post prostatic artery embolization will also be recorded.

Interventions

Patients with lower urinary tract symptoms (LUTS) due to benign prostatic hyperplasia (BPH) will be treated with Embosphere Microspheres via prostate artery embolization.

Sponsors

Merit Medical Systems, Inc.
Lead SponsorINDUSTRY

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

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

Inclusion criteria

* Patient has signed informed consent * Patient age is 18 years or older at time of informed consent * Patient will undergo prostatic artery embolization with Embosphere Microspheres for the treatment of symptomatic benign prostatic hyperplasia with lower urinary tract symptoms

Exclusion criteria

* Patient is unable or unwilling to provide follow-up information * Patient is undergoing prostatic artery embolization for reasons that do not include symptomatic benign prostatic hyperplasia with lower urinary tract symptoms * Any other reason the investigator deems cause for exclusion

Design outcomes

Primary

MeasureTime frameDescription
Long-term Effectiveness of Prostatic Artery Embolization (PAE) With Embosphere Microspheres as Assessed by the International Prostate Symptom Score (IPSS).12 MonthsThe two time points used in the calculation were baseline and 12 months. The calculation was done using the 12 months mean International Prostate Symptom Score (IPSS) minus the baseline mean IPSS for paired data (e.g., available data on both baseline and 12 month timepoints). From the IPSS questionnaire, the total score was used and range from 0 to 35 with lower scores representing better outcomes and higher scores representing worse outcomes. There are a total of 7 questions on the scale and the scores from each question are summed to get a total score. A negative change score means improvement of outcomes. 'Scores on a scale' is the unite of measure

Secondary

MeasureTime frameDescription
Quality of Life Due to Urinary Symptoms After Discontinuation of Indwelling Bladder Catheter (IBC) Post Prostate Artery Embolization (PAE) Using the International Prostate Symptom Score (IPSS) Quality of Life Assessment Index.3, 24 MonthsThe time points used in the calculation were baseline, 3 months and 24 months. The calculation was done using the 3 months mean International Prostate Symptom Score (IPSS) minus the baseline mean IPSS for paired data (e.g., available data on both baseline and 3 month timepoints). The same calculation was also done at 24 months. From the IPSS questionnaire, the total score was used and range from 0 to 35 with lower scores representing better outcomes and higher scores representing worse outcomes. There are a total of 7 questions on the scale and the scores from each question are summed to get a total score. A negative change score means improvement of outcomes. 'Scores' on a scale is the unite of measure.
Device or Procedure Related Adverse Events Post Procedure.3, 12, 24 MonthsThe measure used to assess device or procedure related adverse events post procedure at three different time points (3, 12, 24 months) are frequencies and percentages. For each visit (or reporting time point), the event rate will be calculated as the number of subjects with certain event terms over the number of evaluable subjects. The evaluable subjects at each reporting time point include all subjects who are enrolled and 1. had an event within (on or before) the reporting cutoff days, or 2. had a follow-up at or after the lower limit of the reporting window, or 3. the withdrawal consent date/recorded lost-to-follow-up date at or after the lower limit of the reporting window.
Frequency of Indwelling Bladder Catheter (IBC) Removal Post PAE.3, 12, 24 Months
International Prostate Symptom Score (IPSS) After Discontinuation of Indwelling Bladder Catheter (IBC) Post PAE.3, 24 MonthsThe time points used in the calculation were baseline, 3 months and 24 months. The calculation was done using the 3 months mean International Prostate Symptom Score (IPSS) minus the baseline mean IPSS for paired data (e.g., available data on both baseline and 3 month timepoints). The same calculation was also done at 24 months. From the IPSS questionnaire, the total score was used and range from 0 to 35 with lower scores representing better outcomes and higher scores representing worse outcomes. There are a total of 7 questions on the scale and the scores from each question are summed to get a total score. A negative change score means improvement of outcomes. 'Scores' on a scale is the unite of measure.
Additional Treatments for Refractory or Recurrent Lower Urinary Tract Symptoms (LUTS) Due to Benign Prostatic Hyperplasia (BPH) Post Prostatic Artery Embolization (PAE).3, 12, 24 Months
Change From Baseline in Erectile Function Post Prostatic Artery Embolization (PAE) Using the Sexual Health Inventory for Men (SHIM).12 MonthsThe calculation was done using the 12 months mean Sexual Health Inventory for Men (SHIM) score minus the baseline mean SHIM score for paired data (e.g., available data on both baseline and 12 month timepoints). From the SHIM questionnaire, the total scores was used and range from 1 to 25 with higher scores representing better outcomes (no signs of erectile dysfunction) and lower scores representing worse outcomes (severe erectile dysfunction). There are a total of 5 questions on the scale and the scores from each question are summed to get a total score. A positive change score means improvement of outcomes. 'Scores' on a scale is the unite of measure.
Technical Success Defined as Successful Embolization of the Treated Prostate Gland.Day of PAE Procedure

Countries

France, Italy, United Kingdom, United States

Participant flow

Participants by arm

ArmCount
Treated With Embosphere Microspheres
Patients with lower urinary tract symptoms (LUTS) due to benign prostatic hyperplasia (BPH) will be treated with Embosphere Microspheres (size of embolic determined at Investigator discretion). Prostate artery embolization: Patients with lower urinary tract symptoms (LUTS) due to benign prostatic hyperplasia (BPH) will be treated with Embosphere Microspheres via prostate artery embolization.
487
Total487

Baseline characteristics

CharacteristicTreated With Embosphere Microspheres
Age, Continuous70.1 years
STANDARD_DEVIATION 8.38
Ethnicity (NIH/OMB)
Hispanic or Latino
12 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
283 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
192 Participants
Race (NIH/OMB)
American Indian or Alaska Native
1 Participants
Race (NIH/OMB)
Asian
3 Participants
Race (NIH/OMB)
Black or African American
4 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
147 Participants
Race (NIH/OMB)
White
332 Participants
Region of Enrollment
France
135 participants
Region of Enrollment
Italy
127 participants
Region of Enrollment
United Kingdom
122 participants
Region of Enrollment
United States
103 participants
Sex: Female, Male
Female
0 Participants
Sex: Female, Male
Male
487 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 487
other
Total, other adverse events
57 / 487
serious
Total, serious adverse events
10 / 487

Outcome results

Primary

Long-term Effectiveness of Prostatic Artery Embolization (PAE) With Embosphere Microspheres as Assessed by the International Prostate Symptom Score (IPSS).

The two time points used in the calculation were baseline and 12 months. The calculation was done using the 12 months mean International Prostate Symptom Score (IPSS) minus the baseline mean IPSS for paired data (e.g., available data on both baseline and 12 month timepoints). From the IPSS questionnaire, the total score was used and range from 0 to 35 with lower scores representing better outcomes and higher scores representing worse outcomes. There are a total of 7 questions on the scale and the scores from each question are summed to get a total score. A negative change score means improvement of outcomes. 'Scores on a scale' is the unite of measure

Time frame: 12 Months

ArmMeasureValue (MEAN)
Treated With Embosphere MicrospheresLong-term Effectiveness of Prostatic Artery Embolization (PAE) With Embosphere Microspheres as Assessed by the International Prostate Symptom Score (IPSS).-11.1 scores on scale
Secondary

Additional Treatments for Refractory or Recurrent Lower Urinary Tract Symptoms (LUTS) Due to Benign Prostatic Hyperplasia (BPH) Post Prostatic Artery Embolization (PAE).

Time frame: 3, 12, 24 Months

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Treated With Embosphere MicrospheresAdditional Treatments for Refractory or Recurrent Lower Urinary Tract Symptoms (LUTS) Due to Benign Prostatic Hyperplasia (BPH) Post Prostatic Artery Embolization (PAE).24 Months10 Participants
Treated With Embosphere MicrospheresAdditional Treatments for Refractory or Recurrent Lower Urinary Tract Symptoms (LUTS) Due to Benign Prostatic Hyperplasia (BPH) Post Prostatic Artery Embolization (PAE).3 Months20 Participants
Treated With Embosphere MicrospheresAdditional Treatments for Refractory or Recurrent Lower Urinary Tract Symptoms (LUTS) Due to Benign Prostatic Hyperplasia (BPH) Post Prostatic Artery Embolization (PAE).12 Months22 Participants
Secondary

Change From Baseline in Erectile Function Post Prostatic Artery Embolization (PAE) Using the Sexual Health Inventory for Men (SHIM).

The calculation was done using the 12 months mean Sexual Health Inventory for Men (SHIM) score minus the baseline mean SHIM score for paired data (e.g., available data on both baseline and 12 month timepoints). From the SHIM questionnaire, the total scores was used and range from 1 to 25 with higher scores representing better outcomes (no signs of erectile dysfunction) and lower scores representing worse outcomes (severe erectile dysfunction). There are a total of 5 questions on the scale and the scores from each question are summed to get a total score. A positive change score means improvement of outcomes. 'Scores' on a scale is the unite of measure.

Time frame: 12 Months

ArmMeasureValue (MEAN)
Treated With Embosphere MicrospheresChange From Baseline in Erectile Function Post Prostatic Artery Embolization (PAE) Using the Sexual Health Inventory for Men (SHIM).-0.1 scores on scale
Secondary

Device or Procedure Related Adverse Events Post Procedure.

The measure used to assess device or procedure related adverse events post procedure at three different time points (3, 12, 24 months) are frequencies and percentages. For each visit (or reporting time point), the event rate will be calculated as the number of subjects with certain event terms over the number of evaluable subjects. The evaluable subjects at each reporting time point include all subjects who are enrolled and 1. had an event within (on or before) the reporting cutoff days, or 2. had a follow-up at or after the lower limit of the reporting window, or 3. the withdrawal consent date/recorded lost-to-follow-up date at or after the lower limit of the reporting window.

Time frame: 3, 12, 24 Months

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Treated With Embosphere MicrospheresDevice or Procedure Related Adverse Events Post Procedure.24 Months0 Participants
Treated With Embosphere MicrospheresDevice or Procedure Related Adverse Events Post Procedure.3 Months0 Participants
Treated With Embosphere MicrospheresDevice or Procedure Related Adverse Events Post Procedure.12 Months0 Participants
Secondary

Frequency of Indwelling Bladder Catheter (IBC) Removal Post PAE.

Time frame: 3, 12, 24 Months

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Treated With Embosphere MicrospheresFrequency of Indwelling Bladder Catheter (IBC) Removal Post PAE.3 Months55 Participants
Treated With Embosphere MicrospheresFrequency of Indwelling Bladder Catheter (IBC) Removal Post PAE.12 Months0 Participants
Treated With Embosphere MicrospheresFrequency of Indwelling Bladder Catheter (IBC) Removal Post PAE.24 Months0 Participants
Secondary

International Prostate Symptom Score (IPSS) After Discontinuation of Indwelling Bladder Catheter (IBC) Post PAE.

The time points used in the calculation were baseline, 3 months and 24 months. The calculation was done using the 3 months mean International Prostate Symptom Score (IPSS) minus the baseline mean IPSS for paired data (e.g., available data on both baseline and 3 month timepoints). The same calculation was also done at 24 months. From the IPSS questionnaire, the total score was used and range from 0 to 35 with lower scores representing better outcomes and higher scores representing worse outcomes. There are a total of 7 questions on the scale and the scores from each question are summed to get a total score. A negative change score means improvement of outcomes. 'Scores' on a scale is the unite of measure.

Time frame: 3, 24 Months

ArmMeasureGroupValue (MEAN)
Treated With Embosphere MicrospheresInternational Prostate Symptom Score (IPSS) After Discontinuation of Indwelling Bladder Catheter (IBC) Post PAE.3 Months-12.4 scores on scale
Treated With Embosphere MicrospheresInternational Prostate Symptom Score (IPSS) After Discontinuation of Indwelling Bladder Catheter (IBC) Post PAE.24 Months-10.1 scores on scale
Secondary

Quality of Life Due to Urinary Symptoms After Discontinuation of Indwelling Bladder Catheter (IBC) Post Prostate Artery Embolization (PAE) Using the International Prostate Symptom Score (IPSS) Quality of Life Assessment Index.

The time points used in the calculation were baseline, 3 months and 24 months. The calculation was done using the 3 months mean International Prostate Symptom Score (IPSS) minus the baseline mean IPSS for paired data (e.g., available data on both baseline and 3 month timepoints). The same calculation was also done at 24 months. From the IPSS questionnaire, the total score was used and range from 0 to 35 with lower scores representing better outcomes and higher scores representing worse outcomes. There are a total of 7 questions on the scale and the scores from each question are summed to get a total score. A negative change score means improvement of outcomes. 'Scores' on a scale is the unite of measure.

Time frame: 3, 24 Months

ArmMeasureGroupValue (MEAN)
Treated With Embosphere MicrospheresQuality of Life Due to Urinary Symptoms After Discontinuation of Indwelling Bladder Catheter (IBC) Post Prostate Artery Embolization (PAE) Using the International Prostate Symptom Score (IPSS) Quality of Life Assessment Index.3 Months-2.7 scores on scale
Treated With Embosphere MicrospheresQuality of Life Due to Urinary Symptoms After Discontinuation of Indwelling Bladder Catheter (IBC) Post Prostate Artery Embolization (PAE) Using the International Prostate Symptom Score (IPSS) Quality of Life Assessment Index.24 Months-2.4 scores on scale
Secondary

Technical Success Defined as Successful Embolization of the Treated Prostate Gland.

Time frame: Day of PAE Procedure

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Treated With Embosphere MicrospheresTechnical Success Defined as Successful Embolization of the Treated Prostate Gland.432 Participants

Source: ClinicalTrials.gov · Data processed: Feb 5, 2026