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Prostate Artery Embolization With Embosphere Microspheres Compared to TURP for Benign Prostatic Hyperplasia

Prospective, Controlled Investigation of Prostate Artery Embolization With Embosphere Microspheres Compared to Transurethral Resection of the Prostate for the Treatment of Symptomatic Benign Prostatic Hyperplasia

Status
Terminated
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01789840
Enrollment
59
Registered
2013-02-12
Start date
2013-07-31
Completion date
2017-12-31
Last updated
2021-11-11

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

Conditions

Benign Prostatic Hyperplasia

Keywords

BPH, Prostate, Prostatic Hyperplasia, enlarged prostate, LUTS, urinary retention

Brief summary

The purpose of this study is to evaluate improvement of symptoms from benign prostatic hyperplasia (BPH) as assessed by the International Prostate Symptom Score (IPSS) for prostatic artery embolization (PAE) using Embosphere Microspheres compared to conventional transurethral resection of the prostate (TURP).

Detailed description

The study will consist of a screening period in which patient eligibility will be determined and baseline assessments performed. Once eligibility is confirmed, patients will be enrolled within 4 weeks of baseline imaging to receive either TURP or PAE with Embosphere Microspheres. After treatment, patients will return for follow-up visits at Months 1, 3, 6, and 12. At each of these visits patients will complete IPSS and IIEF questionnaires and have a physical exam, laboratory assessments (including PSA), a DRE, and a transrectal ultrasound of the prostate. At each visit patients will have a cystoscopy and proctoscopy if medically indicated. Cystoscopy is necessary in all cases of hematuria (injury associated with bleeding). Proctoscopy is necessary in all cases of bleeding per the rectum. An MRI of the prostate will be conducted at the 3 and 12 month visits. Uroflowmetry testing will be performed at the 1 and 12 month visits, and at other visits if medically indicated. MRIs will be assessed by blinded Central Reviewers. The primary endpoint will be improvement of symptoms from BPH evaluated using the IPSS at 12 months post treatment. Patients will continue to be followed annually for up to 4 additional years. At a minimum, patients will be requested to complete the IPSS and International Index of Erectile Dysfunction (IIEF) questionnaires by telephone, email or mail once per year during this long term follow up period. Patients who are willing to return to the clinic will have a physical exam, MRI of the prostate, digital rectal exam (DRE), transrectal ultrasound of the prostate, PSA, and uroflowmetry testing performed each year. Treatments for LUTS due to BPH after the study treatment and 12 month follow up are complete will be documented during the long term follow up period to the extent possible. This long term follow up data will be summarized and submitted separately from the data for the initial 12 months of this study. Safety will be evaluated throughout the initial 12 months of the study by assessing adverse events, as well as changes in laboratory values, and findings on physical examination. Concomitant medication usage will be assessed. A follow up ECG will be performed at the 12 month visit. Patient recruitment is anticipated to take approximately 2 years. Duration of each patient's participation is expected to be 5 years, including a 4 year long term follow up period. The total duration of the study will be approximately 7 years, including long term follow up.

Interventions

Sponsors

Merit Medical Systems, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
MALE
Age
50 Years to 79 Years
Healthy volunteers
No

Inclusion criteria

1. Patient is age 50 to 79, inclusive 2. Patient has signed informed consent 3. Patient has had lower urinary tract symptoms (LUTS) secondary to BPH for at least 6 months prior to study treatment 4. Patient has a baseline IPSS Score \> 13 at baseline 5. Patient has a prostate size of at least 50 grams and not more than 90 grams, measured by MRI 6. Patient has BPH symptoms refractory to medical treatment or for whom medication is contraindicated, not tolerated or refused 7. Patient must be a candidate for TURP 8. Patient must meet one of the following criteria: * Baseline Prostate Specific Antigen (PSA) \<2.5 ng/mL (no prostate biopsy required) * Baseline PSA \>2.5 ng/mL and ≤10 ng/mL AND free PSA \> 25% of total PSA (no prostate biopsy required) * Baseline PSA \>2.5 ng/mL and ≤10 ng/mL AND free PSA \< 25% of total PSA AND a negative prostate biopsy result (minimum 12 core biopsy) * Baseline PSA \>10 ng/mL AND a negative prostate biopsy (minimum 12 core biopsy)

Exclusion criteria

1. Active urinary tract infection 2. Biopsy proven prostate or bladder cancer, or any cancer other than basal or squamous cell skin cancer * The following patients must undergo prostate biopsy with a minimum of 12 cores and have a negative histopathology report to be enrolled in the study: * Patients with digital rectal examination (DRE) findings suspicious for prostate cancer * Patients with baseline PSA levels \> 10 ng/mL * Patients with baseline PSA levels \>2.5 ng/mL and \< 10ng/mL AND free PSA \< 25% of total PSA * Patients with cystoscopy findings suspicious for bladder cancer must undergo biopsy and have a negative histopathology report to be enrolled in the study 3. Bladder atonia, neurogenic bladder disorder or other neurological disorder that is impacting bladder function (eg multiple sclerosis, Parkinson's disease, spinal cord injuries, etc) 4. Urethral stricture, bladder neck contracture, sphincter abnormalities, urinary obstruction due to causes other than BPH, or other potentially confounding bladder or urethral disease or condition 5. Patient has taken beta blockers, antihistamines, anticonvulsants, or antispasmodics within 1 week of study treatment AND has not been on the same drug dosage for 6 months with a stable voiding pattern • Dosage of these medications should not change during study participation unless medically necessary 6. Patient has taken antidepressants, anticholinergics, androgens or gonadotropin-releasing hormonal analogues within 2 months of study treatment AND has not been on the same drug dosage for at least 3 months with a stable voiding pattern 7. Patient has taken 5-alpha reductase inhibitors or alpha blockers within 1 month of study treatment AND has not been on the same drug dosage for at least 3 months with a stable voiding pattern 8. Previous non-medical BPH treatment, including surgery, TURP, needle ablation, microwave or laser therapy, balloon dilation, stent implantation, or any other invasive treatment to the prostate 9. Any known condition that limits catheter-based intervention or is a contraindication to embolization, such as intolerance to a vessel occlusion procedure or severe atherosclerosis. 10. Patient is unable to stop taking anticoagulant, nonsteroidal antiinflammatory drug (NSAID) or anti-platelet therapy for 7 days prior to study treatment 11. Unable to have MRI imaging (eg metal implant including pacemaker, replacement joint, etc) 12. Patient has an asymmetric prostate, with \> 20% difference in size between lobes 13. Cardiac condition including congestive heart failure or arrhythmia, uncontrolled diabetes mellitus, significant respiratory disease or known immunosuppression which required hospitalization within the previous 6 months 14. Baseline serum creatinine level \> 1.8 mg/dl 15. Known upper tract renal disease 16. Cystolithiasis or chronic hematuria within 3 months prior to study treatment 17. Active prostatitis 18. Previous rectal surgery other than hemorrhoidectomy, or history of rectal disease 19. History of pelvic irradiation or radical pelvic surgery 20. Patient is interested in future fertility 21. Coagulation disturbances not normalized by medical treatment 22. Acute urinary retention requiring an indwelling catheter 23. Known major iliac arterial occlusive disease 24. Allergy to iodinated contrast agents 25. Hypersensitivity to gelatin products

Design outcomes

Primary

MeasureTime frameDescription
International Prostate Symptom Score (IPSS) - Total Score at 12 Months12 monthsThe International Prostate Symptom Score (I-PSS) is based on the answers to seven questions concerning urinary symptoms and one question concerning quality of life. Each question concerning urinary symptoms allows the patient to choose one out of six answers indicating increasing severity of the particular symptom. The answers are assigned points from 0 to 5. The total score can therefore range from 0 to 35 (asymptomatic to very symptomatic). Mild is generally less than or equal to 7, moderate is 8-19 and severe is 20-35. Total score was measured at 12 months.

Secondary

MeasureTime frameDescription
Duration of Hospitalization Post Procedure1 monthThe duration of hospitalization associated with the procedure will be calculated in hours. T
Duration of Post Procedure Catheterization1 monthThe duration of post procedure catheterization will be calculated in hours.
Number of Adverse Events Per PatientThrough early termination of study (with less than 25% of subjects completing 12 month follow up)Adverse events during the study were predominantly mild. There are over 4 times as many PAE patients as TURP, so the overall incidence rate of events is proportional to the size of the cohort represented. The most common events among patients who underwent embolization were transient dysuria, bladder spasm, hematuria, hematospermia, nausea and fever. The last 2 are typical of post embolic syndrome common to all embolization procedures. The most frequent adverse events for surgery patients were dysuria and hematuria. Events also include non-TEAEs.
Number of Patients With Procedure Related Adverse EventsTEAEs at time of study termination, with less than 25% of subjects completing 12 month follow upSafety summaries will include the incidence of treatment-emergent adverse events (TEAEs). Treatment-emergent adverse events (TEAEs) are defined as any event that began on or after the date of treatment or worsened in severity or frequency after treatment was initiated. Events worsening in severity should be considered new adverse events. Adverse events recorded on the case report form (CRF) which began prior to treatment will not be included in the summary tables but will be included in the AE data listings.

Other

MeasureTime frameDescription
Free Prostate Specific Antigen (PSA) at 6 Month Follow up6 month follow upFree PSA percentage summarized for both groups at 6 months follow up
Total Prostate Specific Antigen (PSA) at 6 Months6 monthsProstate specific antigen (PSA) will be summarized for both treatment groups for 6 month time point
Peak Urine Flow Rate (Qmax) at 1 Month1 month follow-upThe peak urine flow rate (Qmax) from the urodynamic and uroflowmetry assessments was assessed at 1 month follow up. (Additional timepoints were not assessed due to early termination).
International Index of Erectile Function (IIEF)6 monthsErectile Function (Questions 1-5 & 15), score range 0-5, max score = 30 Orgasmic Function (Questions 9-10), score range 0-5, max score = 10 Sexual Desire (Questions 11-12), score range 1-5, max score = 10 Intercourse Satisfaction (Questions 6-8), score range 0-5, max score = 15 Overall Satisfaction (Questions 13-14), score range 1-5, max score = 10 SCORING for erectile dysfunction (Total of Q1-5 and Q15) is interpreted as follows: 1-10: Severe Erectile Dysfunction 11-16: Moderate dysfunction 17-21: Mild to moderate dysfunction 22-25: Mild dysfunction 26-30: No dysfunction For all subscales, higher scores = less dysfunction/dissatisfaction Total IIEF is out of 75
Mean Prostate Volume, as Determined by MRI3 month follow-upThe mean prostate volume as assessed by MRI is summarized at 3 month time point.
Post-void Residual Urinary Volume (PVR)1 month follow-upThe post void residual volume (PVR) from the urodynamic and uroflowmetry assessments is summarized for both treatment groups at 1 month time point.

Countries

United States

Participant flow

Participants by arm

ArmCount
Prostate Artery Emoblization (PAE)
Prostate artery embolization using Embosphere Microspheres Embosphere Microspheres
52
Transurethral Resection of the Prostate (TURP)
Transurethral Resection of the Prostate (TURP) TURP
7
Total59

Baseline characteristics

CharacteristicProstate Artery Emoblization (PAE)Transurethral Resection of the Prostate (TURP)Total
Age, Continuous65.2 years
STANDARD_DEVIATION 6.73
62.9 years
STANDARD_DEVIATION 76.74
64.9 years
STANDARD_DEVIATION 6.72
Detrusor Pressure (Pdet) (mmH2O)88.3 mmH2O
STANDARD_DEVIATION 71.25
80.9 mmH2O
STANDARD_DEVIATION 38.69
87.4 mmH2O
STANDARD_DEVIATION 67.99
Ethnicity (NIH/OMB)
Hispanic or Latino
12 Participants2 Participants14 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
40 Participants5 Participants45 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Free Prostate Specific Antigen (PSA)22.5 percentage of Free PSA
STANDARD_DEVIATION 8.99
21.8 percentage of Free PSA
STANDARD_DEVIATION 9.65
22.4 percentage of Free PSA
STANDARD_DEVIATION 8.91
International Index of Erectile Function (IIEF) - Total
Erectile function sub-score
11.7 units on a scale
STANDARD_DEVIATION 9.82
20.1 units on a scale
STANDARD_DEVIATION 10.99
12.7 units on a scale
STANDARD_DEVIATION 10.25
International Index of Erectile Function (IIEF) - Total
Intercourse satisfaction sub-score
4.1 units on a scale
STANDARD_DEVIATION 4.63
8.0 units on a scale
STANDARD_DEVIATION 6.08
4.5 units on a scale
STANDARD_DEVIATION 4.93
International Index of Erectile Function (IIEF) - Total
Orgasmic function sub-score
4.2 units on a scale
STANDARD_DEVIATION 3.76
5.7 units on a scale
STANDARD_DEVIATION 4.11
4.4 units on a scale
STANDARD_DEVIATION 3.81
International Index of Erectile Function (IIEF) - Total
Overall satisfaction sub-score
4.5 units on a scale
STANDARD_DEVIATION 2.79
7.3 units on a scale
STANDARD_DEVIATION 3.3
4.8 units on a scale
STANDARD_DEVIATION 2.97
International Index of Erectile Function (IIEF) - Total
Sexual desire sub-score
5.1 units on a scale
STANDARD_DEVIATION 2.47
7.4 units on a scale
STANDARD_DEVIATION 2.7
5.4 units on a scale
STANDARD_DEVIATION 2.59
International Index of Erectile Function (IIEF) - Total
Total IIEF
29.5 units on a scale
STANDARD_DEVIATION 20.71
48.6 units on a scale
STANDARD_DEVIATION 24.73
31.8 units on a scale
STANDARD_DEVIATION 21.89
International Prostate Symptom Score (IPSS)22.2 units on a scale
STANDARD_DEVIATION 5.25
24.6 units on a scale
STANDARD_DEVIATION 5.59
22.4 units on a scale
STANDARD_DEVIATION 5.3
Peak Urine Flow Rate (Qmax reported as mL/s)6.6 mL/s
STANDARD_DEVIATION 4.03
8.1 mL/s
STANDARD_DEVIATION 3.98
6.7 mL/s
STANDARD_DEVIATION 4.02
Post Void Residual (PVR)170.6 mL
STANDARD_DEVIATION 156.27
112.0 mL
STANDARD_DEVIATION 165.35
163.7 mL
STANDARD_DEVIATION 157.06
Prostate Specific Antigen (PSA) (ng/mL)3.9 ng/mL
STANDARD_DEVIATION 2.71
5.5 ng/mL
STANDARD_DEVIATION 6.71
4.1 ng/mL
STANDARD_DEVIATION 3.37
Prostate volume (g)66.4 g
STANDARD_DEVIATION 11.8
65.9 g
STANDARD_DEVIATION 14.71
66.4 g
STANDARD_DEVIATION 12.04
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
3 Participants0 Participants3 Participants
Race (NIH/OMB)
Black or African American
1 Participants0 Participants1 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
1 Participants0 Participants1 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
47 Participants7 Participants54 Participants
Sex: Female, Male
Female
0 Participants0 Participants0 Participants
Sex: Female, Male
Male
52 Participants7 Participants59 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 520 / 6
other
Total, other adverse events
40 / 525 / 6
serious
Total, serious adverse events
6 / 521 / 6

Outcome results

Primary

International Prostate Symptom Score (IPSS) - Total Score at 12 Months

The International Prostate Symptom Score (I-PSS) is based on the answers to seven questions concerning urinary symptoms and one question concerning quality of life. Each question concerning urinary symptoms allows the patient to choose one out of six answers indicating increasing severity of the particular symptom. The answers are assigned points from 0 to 5. The total score can therefore range from 0 to 35 (asymptomatic to very symptomatic). Mild is generally less than or equal to 7, moderate is 8-19 and severe is 20-35. Total score was measured at 12 months.

Time frame: 12 months

Population: Merit Medical received 513(f)(2) (de novo) classification from the FDA expanding the indication for Embosphere Microspheres to include prostatic artery embolization (PAE) for symptomatic benign prostatic hyperplasia (BPH) in 2017. An IDE supplement was submitted for this study proposing the termination of study follow-up visits. The FDA granted approval of termination on 03 Nov 2017. Early termination resulted in small numbers analyzed, incomplete enrollment and follow-up of study subjects.

ArmMeasureValue (MEAN)Dispersion
Prostate Artery Emoblization (PAE)International Prostate Symptom Score (IPSS) - Total Score at 12 Months10.7 total score on a scaleStandard Deviation 8.8
Transurethral Resection of the Prostate (TURP)International Prostate Symptom Score (IPSS) - Total Score at 12 Months4.3 total score on a scaleStandard Deviation 5.9
Secondary

Duration of Hospitalization Post Procedure

The duration of hospitalization associated with the procedure will be calculated in hours. T

Time frame: 1 month

Population: Merit Medical received 513(f)(2) (de novo) classification from the FDA expanding the indication for Embosphere Microspheres to include prostatic artery embolization (PAE) for symptomatic benign prostatic hyperplasia (BPH) in 2017. An IDE supplement was submitted for this study proposing the termination of study follow-up visits. The FDA granted approval of termination on 03 Nov 2017. Early termination resulted in small numbers analyzed, incomplete enrollment and follow-up of study subjects.

ArmMeasureValue (MEAN)Dispersion
Prostate Artery Emoblization (PAE)Duration of Hospitalization Post Procedure23.1 hoursStandard Deviation 9.4
Transurethral Resection of the Prostate (TURP)Duration of Hospitalization Post Procedure32.2 hoursStandard Deviation 10.2
Secondary

Duration of Post Procedure Catheterization

The duration of post procedure catheterization will be calculated in hours.

Time frame: 1 month

Population: Merit Medical received 513(f)(2) (de novo) classification from the FDA expanding the indication for Embosphere Microspheres to include prostatic artery embolization (PAE) for symptomatic benign prostatic hyperplasia (BPH) in 2017. An IDE supplement was submitted for this study proposing the termination of study follow-up visits. The FDA granted approval of termination on 03 Nov 2017. Early termination resulted in small numbers analyzed, incomplete enrollment and follow-up of study subjects.

ArmMeasureValue (MEAN)Dispersion
Prostate Artery Emoblization (PAE)Duration of Post Procedure Catheterization24.2 hoursStandard Deviation 44.2
Transurethral Resection of the Prostate (TURP)Duration of Post Procedure Catheterization24.2 hoursStandard Deviation 12.9
Secondary

Number of Adverse Events Per Patient

Adverse events during the study were predominantly mild. There are over 4 times as many PAE patients as TURP, so the overall incidence rate of events is proportional to the size of the cohort represented. The most common events among patients who underwent embolization were transient dysuria, bladder spasm, hematuria, hematospermia, nausea and fever. The last 2 are typical of post embolic syndrome common to all embolization procedures. The most frequent adverse events for surgery patients were dysuria and hematuria. Events also include non-TEAEs.

Time frame: Through early termination of study (with less than 25% of subjects completing 12 month follow up)

Population: Merit Medical received 513(f)(2) (de novo) classification from the FDA expanding the indication for Embosphere Microspheres to include prostatic artery embolization (PAE) for symptomatic benign prostatic hyperplasia (BPH) in 2017. An IDE supplement was submitted for this study proposing the termination of study follow-up visits. The FDA granted approval of termination on 03 Nov 2017. Early termination resulted in small numbers analyzed, incomplete enrollment and follow-up of study subjects.

ArmMeasureGroupValue (NUMBER)
Prostate Artery Emoblization (PAE)Number of Adverse Events Per PatientMild adverse events3.78 events per patient
Prostate Artery Emoblization (PAE)Number of Adverse Events Per PatientModerate adverse events0.39 events per patient
Prostate Artery Emoblization (PAE)Number of Adverse Events Per PatientSevere adverse events0.21 events per patient
Transurethral Resection of the Prostate (TURP)Number of Adverse Events Per PatientMild adverse events4.0 events per patient
Transurethral Resection of the Prostate (TURP)Number of Adverse Events Per PatientModerate adverse events0.5 events per patient
Transurethral Resection of the Prostate (TURP)Number of Adverse Events Per PatientSevere adverse events0.17 events per patient
Secondary

Number of Patients With Procedure Related Adverse Events

Safety summaries will include the incidence of treatment-emergent adverse events (TEAEs). Treatment-emergent adverse events (TEAEs) are defined as any event that began on or after the date of treatment or worsened in severity or frequency after treatment was initiated. Events worsening in severity should be considered new adverse events. Adverse events recorded on the case report form (CRF) which began prior to treatment will not be included in the summary tables but will be included in the AE data listings.

Time frame: TEAEs at time of study termination, with less than 25% of subjects completing 12 month follow up

Population: De Novo classification from FDA expanding the indication for Embosphere Microspheres to include prostatic artery embolization for symptomatic benign prostatic hyperplasia received 2017. IDE supplement proposed the termination of study follow-up visits; FDA granted approval of termination 03Nov2017. Early termination resulted in small numbers analyzed w less than 25% reaching 12 month follow-up.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Prostate Artery Emoblization (PAE)Number of Patients With Procedure Related Adverse EventsCardiac disorders3 Participants
Prostate Artery Emoblization (PAE)Number of Patients With Procedure Related Adverse EventsEar and labryinth disorders3 Participants
Prostate Artery Emoblization (PAE)Number of Patients With Procedure Related Adverse EventsInfections and infestation7 Participants
Prostate Artery Emoblization (PAE)Number of Patients With Procedure Related Adverse EventsInjury, poisoning and procedural complications3 Participants
Prostate Artery Emoblization (PAE)Number of Patients With Procedure Related Adverse EventsInvestigations1 Participants
Prostate Artery Emoblization (PAE)Number of Patients With Procedure Related Adverse EventsReproductive system and breast disorders13 Participants
Prostate Artery Emoblization (PAE)Number of Patients With Procedure Related Adverse EventsSurgical and medical procedures1 Participants
Prostate Artery Emoblization (PAE)Number of Patients With Procedure Related Adverse EventsCongenital, familial and genetic disorders1 Participants
Prostate Artery Emoblization (PAE)Number of Patients With Procedure Related Adverse EventsMetabolism and nutrition disorders2 Participants
Prostate Artery Emoblization (PAE)Number of Patients With Procedure Related Adverse EventsMusculoskeletal and connective tissue disorders10 Participants
Prostate Artery Emoblization (PAE)Number of Patients With Procedure Related Adverse EventsNervous system disorders7 Participants
Prostate Artery Emoblization (PAE)Number of Patients With Procedure Related Adverse EventsRenal and urinary disorders30 Participants
Prostate Artery Emoblization (PAE)Number of Patients With Procedure Related Adverse EventsEndocrine disorders1 Participants
Prostate Artery Emoblization (PAE)Number of Patients With Procedure Related Adverse EventsGastrointestinal disorders22 Participants
Prostate Artery Emoblization (PAE)Number of Patients With Procedure Related Adverse EventsGeneral disorders and administration site conditions11 Participants
Prostate Artery Emoblization (PAE)Number of Patients With Procedure Related Adverse EventsRespiratory, thoracic and mediastinal disorders4 Participants
Prostate Artery Emoblization (PAE)Number of Patients With Procedure Related Adverse EventsSkin and subcutaneous tissue disorders3 Participants
Prostate Artery Emoblization (PAE)Number of Patients With Procedure Related Adverse EventsVascular disorders4 Participants
Transurethral Resection of the Prostate (TURP)Number of Patients With Procedure Related Adverse EventsReproductive system and breast disorders2 Participants
Transurethral Resection of the Prostate (TURP)Number of Patients With Procedure Related Adverse EventsNervous system disorders1 Participants
Transurethral Resection of the Prostate (TURP)Number of Patients With Procedure Related Adverse EventsEar and labryinth disorders0 Participants
Transurethral Resection of the Prostate (TURP)Number of Patients With Procedure Related Adverse EventsSurgical and medical procedures0 Participants
Transurethral Resection of the Prostate (TURP)Number of Patients With Procedure Related Adverse EventsInfections and infestation1 Participants
Transurethral Resection of the Prostate (TURP)Number of Patients With Procedure Related Adverse EventsRenal and urinary disorders5 Participants
Transurethral Resection of the Prostate (TURP)Number of Patients With Procedure Related Adverse EventsInjury, poisoning and procedural complications0 Participants
Transurethral Resection of the Prostate (TURP)Number of Patients With Procedure Related Adverse EventsRespiratory, thoracic and mediastinal disorders2 Participants
Transurethral Resection of the Prostate (TURP)Number of Patients With Procedure Related Adverse EventsEndocrine disorders0 Participants
Transurethral Resection of the Prostate (TURP)Number of Patients With Procedure Related Adverse EventsVascular disorders0 Participants
Transurethral Resection of the Prostate (TURP)Number of Patients With Procedure Related Adverse EventsCardiac disorders1 Participants
Transurethral Resection of the Prostate (TURP)Number of Patients With Procedure Related Adverse EventsGastrointestinal disorders2 Participants
Transurethral Resection of the Prostate (TURP)Number of Patients With Procedure Related Adverse EventsCongenital, familial and genetic disorders0 Participants
Transurethral Resection of the Prostate (TURP)Number of Patients With Procedure Related Adverse EventsInvestigations1 Participants
Transurethral Resection of the Prostate (TURP)Number of Patients With Procedure Related Adverse EventsSkin and subcutaneous tissue disorders2 Participants
Transurethral Resection of the Prostate (TURP)Number of Patients With Procedure Related Adverse EventsMetabolism and nutrition disorders0 Participants
Transurethral Resection of the Prostate (TURP)Number of Patients With Procedure Related Adverse EventsGeneral disorders and administration site conditions0 Participants
Transurethral Resection of the Prostate (TURP)Number of Patients With Procedure Related Adverse EventsMusculoskeletal and connective tissue disorders1 Participants
Other Pre-specified

Free Prostate Specific Antigen (PSA) at 6 Month Follow up

Free PSA percentage summarized for both groups at 6 months follow up

Time frame: 6 month follow up

Population: Merit Medical received 513(f)(2) (de novo) classification from the FDA expanding the indication for Embosphere Microspheres to include prostatic artery embolization (PAE) for symptomatic benign prostatic hyperplasia (BPH) in 2017. An IDE supplement was submitted for this study proposing the termination of study follow-up visits. The FDA granted approval of termination on 03 Nov 2017. Early termination resulted in small numbers analyzed, incomplete enrollment and follow-up of study subjects.

ArmMeasureValue (MEAN)Dispersion
Prostate Artery Emoblization (PAE)Free Prostate Specific Antigen (PSA) at 6 Month Follow up18.7 percentageStandard Deviation 8.7
Transurethral Resection of the Prostate (TURP)Free Prostate Specific Antigen (PSA) at 6 Month Follow up26.0 percentageStandard Deviation 8.7
Other Pre-specified

International Index of Erectile Function (IIEF)

Erectile Function (Questions 1-5 & 15), score range 0-5, max score = 30 Orgasmic Function (Questions 9-10), score range 0-5, max score = 10 Sexual Desire (Questions 11-12), score range 1-5, max score = 10 Intercourse Satisfaction (Questions 6-8), score range 0-5, max score = 15 Overall Satisfaction (Questions 13-14), score range 1-5, max score = 10 SCORING for erectile dysfunction (Total of Q1-5 and Q15) is interpreted as follows: 1-10: Severe Erectile Dysfunction 11-16: Moderate dysfunction 17-21: Mild to moderate dysfunction 22-25: Mild dysfunction 26-30: No dysfunction For all subscales, higher scores = less dysfunction/dissatisfaction Total IIEF is out of 75

Time frame: 6 months

Population: Merit Medical received 513(f)(2) (de novo) classification from the FDA expanding the indication for Embosphere Microspheres to include prostatic artery embolization (PAE) for symptomatic benign prostatic hyperplasia (BPH) in 2017. An IDE supplement was submitted for this study proposing the termination of study follow-up visits. The FDA granted approval of termination on 03 Nov 2017. Early termination resulted in small numbers analyzed, incomplete enrollment and follow-up of study subjects.

ArmMeasureGroupValue (MEAN)Dispersion
Prostate Artery Emoblization (PAE)International Index of Erectile Function (IIEF)Overall satisfaction sub-score Q13-14 out of 10 points total5.4 score on a scaleStandard Deviation 3.1
Prostate Artery Emoblization (PAE)International Index of Erectile Function (IIEF)Orgasmic function sub-score Q9-10 out of 10 points total)4.1 score on a scaleStandard Deviation 4
Prostate Artery Emoblization (PAE)International Index of Erectile Function (IIEF)Sexual desire sub-score Q11-12 out of 10 points total5.9 score on a scaleStandard Deviation 2.4
Prostate Artery Emoblization (PAE)International Index of Erectile Function (IIEF)Intercourse satisfaction sub-score Q6-8 out of 15 points total5.5 score on a scaleStandard Deviation 5.8
Prostate Artery Emoblization (PAE)International Index of Erectile Function (IIEF)Total IIEF (Q1 to 15 out of 75 points total)33.3 score on a scaleStandard Deviation 24.4
Prostate Artery Emoblization (PAE)International Index of Erectile Function (IIEF)Erectile function (sub-score Q1-5, 15 out of total 30pts)12.6 score on a scaleStandard Deviation 11.4
Transurethral Resection of the Prostate (TURP)International Index of Erectile Function (IIEF)Total IIEF (Q1 to 15 out of 75 points total)61.7 score on a scaleStandard Deviation 25.3
Transurethral Resection of the Prostate (TURP)International Index of Erectile Function (IIEF)Erectile function (sub-score Q1-5, 15 out of total 30pts)25.3 score on a scaleStandard Deviation 11.4
Transurethral Resection of the Prostate (TURP)International Index of Erectile Function (IIEF)Overall satisfaction sub-score Q13-14 out of 10 points total8.7 score on a scaleStandard Deviation 3.3
Transurethral Resection of the Prostate (TURP)International Index of Erectile Function (IIEF)Orgasmic function sub-score Q9-10 out of 10 points total)7.3 score on a scaleStandard Deviation 3.3
Transurethral Resection of the Prostate (TURP)International Index of Erectile Function (IIEF)Intercourse satisfaction sub-score Q6-8 out of 15 points total11.7 score on a scaleStandard Deviation 5.8
Transurethral Resection of the Prostate (TURP)International Index of Erectile Function (IIEF)Sexual desire sub-score Q11-12 out of 10 points total8.7 score on a scaleStandard Deviation 2.4
Other Pre-specified

Mean Prostate Volume, as Determined by MRI

The mean prostate volume as assessed by MRI is summarized at 3 month time point.

Time frame: 3 month follow-up

Population: Merit Medical received 513(f)(2) (de novo) classification from the FDA expanding the indication for Embosphere Microspheres to include prostatic artery embolization (PAE) for symptomatic benign prostatic hyperplasia (BPH) in 2017. An IDE supplement was submitted for this study proposing the termination of study follow-up visits. The FDA granted approval of termination on 03 Nov 2017. Early termination resulted in small numbers analyzed, incomplete enrollment and follow-up of study subjects.

ArmMeasureValue (MEAN)Dispersion
Prostate Artery Emoblization (PAE)Mean Prostate Volume, as Determined by MRI52.1 gramsStandard Deviation 15
Transurethral Resection of the Prostate (TURP)Mean Prostate Volume, as Determined by MRI28.2 gramsStandard Deviation 5.8
Other Pre-specified

Peak Urine Flow Rate (Qmax) at 1 Month

The peak urine flow rate (Qmax) from the urodynamic and uroflowmetry assessments was assessed at 1 month follow up. (Additional timepoints were not assessed due to early termination).

Time frame: 1 month follow-up

Population: Merit Medical received 513(f)(2) (de novo) classification from the FDA expanding the indication for Embosphere Microspheres to include prostatic artery embolization (PAE) for symptomatic benign prostatic hyperplasia (BPH) in 2017. An IDE supplement was submitted for this study proposing the termination of study follow-up visits. The FDA granted approval of termination on 03 Nov 2017. Early termination resulted in small numbers analyzed, incomplete enrollment and follow-up of study subjects.

ArmMeasureValue (MEAN)Dispersion
Prostate Artery Emoblization (PAE)Peak Urine Flow Rate (Qmax) at 1 Month12.1 mL/sStandard Deviation 10.2
Transurethral Resection of the Prostate (TURP)Peak Urine Flow Rate (Qmax) at 1 Month14.0 mL/sStandard Deviation 4.1
Other Pre-specified

Post-void Residual Urinary Volume (PVR)

The post void residual volume (PVR) from the urodynamic and uroflowmetry assessments is summarized for both treatment groups at 1 month time point.

Time frame: 1 month follow-up

Population: Merit Medical received 513(f)(2) (de novo) classification from the FDA expanding the indication for Embosphere Microspheres to include prostatic artery embolization (PAE) for symptomatic benign prostatic hyperplasia (BPH) in 2017. An IDE supplement was submitted for this study proposing the termination of study follow-up visits. The FDA granted approval of termination on 03 Nov 2017. Early termination resulted in small numbers analyzed, incomplete enrollment and follow-up of study subjects.

ArmMeasureValue (MEAN)Dispersion
Prostate Artery Emoblization (PAE)Post-void Residual Urinary Volume (PVR)106 mLStandard Deviation 136
Transurethral Resection of the Prostate (TURP)Post-void Residual Urinary Volume (PVR)7.5 mLStandard Deviation 9.6
Other Pre-specified

Total Prostate Specific Antigen (PSA) at 6 Months

Prostate specific antigen (PSA) will be summarized for both treatment groups for 6 month time point

Time frame: 6 months

Population: Merit Medical received 513(f)(2) (de novo) classification from the FDA expanding the indication for Embosphere Microspheres to include prostatic artery embolization (PAE) for symptomatic benign prostatic hyperplasia (BPH) in 2017. An IDE supplement was submitted for this study proposing the termination of study follow-up visits. The FDA granted approval of termination on 03 Nov 2017. Early termination resulted in small numbers analyzed, incomplete enrollment and follow-up of study subjects.

ArmMeasureValue (MEAN)Dispersion
Prostate Artery Emoblization (PAE)Total Prostate Specific Antigen (PSA) at 6 Months2.9 ng/mLStandard Deviation 2
Transurethral Resection of the Prostate (TURP)Total Prostate Specific Antigen (PSA) at 6 Months2.1 ng/mLStandard Deviation 1.1

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026