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Shockwave Therapy and Platelet Rich Plasma for the Treatment of Erectile Dysfunction

Novel Treatment for Microvascular Erectile Dysfunction Combining Shockwave Therapy and Platelet Rich Plasma

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05048667
Acronym
COCKTAIL
Enrollment
59
Registered
2021-09-17
Start date
2022-06-27
Completion date
2025-03-14
Last updated
2026-05-22

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

Conditions

Erectile Dysfunction

Brief summary

The purpose of this research study is to evaluate whether the combination of Shock Wave Therapy (SWT) with Platelet Rich Plasma (PRP) is synergistic and can reverse the pathology of microvascular Erectile Dysfunction (ED) and enhance erectile function by improving vasodilation, and endothelial function

Interventions

Each SWT will administer 720 shocks in the treatment arm. Total of 3600 shocks are given over 5 weeks treatment period.

5 mL PRP will be administered via intracavernous injection

OTHERSham SWT

Sham Shockwave Therapy will be administered in the sham arm.

5 mL Placebo saline will be administered via intracavernous injection in the sham arm.

Sponsors

University of Miami
Lead SponsorOTHER
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
CollaboratorNIH

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Caregiver, Investigator)

Eligibility

Sex/Gender
MALE
Age
30 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

1. Be Male 2. Be 30 to 80 years of age (inclusive). 3. Be able to provide written informed consent. 4. Have a diagnosis of ED due to organic origin for at least 6 months prior to consent. 5. Sexually active in a stable, heterosexual relationship of more than three months duration. 6. IIEF-EF score 12-25 at screening 7. Agree to attempt sexual intercourse at least 4 times per month for the duration of the study without being under the influence of alcohol or recreational drugs. 8. Agree to comply with all study related tests/procedures.

Exclusion criteria

1. Previous penile surgery of any kind (except circumcision and condyloma removal), such as penile lengthening, penile cancer surgery, penile plication, grafting. 2. Previous history of priapism or penile fracture 3. Abnormal morning serum testosterone level defined as a value lower than 300 ng/dL (±5%) (indicative of untreated hypogonadism), or greater than 1197 ng/dL (±5%). 4. Current or previous hormone usage, other than prescribed testosterone, clomiphene or thyroid medication. (Subjects with prior or current use of hormonal treatment for prostate cancer are also excluded. 5. Psychogenic ED as determined by study investigator. 6. Anatomical (Peyronie's Disease or penile curvature that negatively influences sexual activity) or neurological abnormalities in the treatment area. 7. Patients using Intracavernosal Injection (ICI) for management of ED 8. Patients with generalized polyneuropathy, or neurological conditions irrespective of cause, such as severe diabetes, multiple sclerosis or Parkinson's disease. 9. Have a serious comorbid illness/condition/behavior that, in the opinion of the investigator, may compromise the safety or compliance of the subject or preclude successful completion of the study. 10. History of consistent treatment failure with Phosphodiesterase Type 5 (PDE5) inhibitors for therapy of ED. 11. Any history of significant psychiatric disease, such as bipolar disorder or psychosis, greater than one lifetime episode of major depression, current depression of moderate or greater severity. Patients who are currently using Selective Serotonin Reuptake Inhibitors (SSRI) or psychotropic medications. 12. Hemoglobin a1c \>9%.

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With Treatment Emergent Serious Adverse Events (TE-SAEs) During the Study Period.Baseline, Month 3A treatment emergent serious adverse event (TE-SAE) is defined as any serious adverse event for which there is a reasonable possibility that the investigational product caused the adverse event. For the purposes of safety reporting, "a reasonable possibility" means there is evidence to suggest a causal relationship between the study product/procedures and the adverse event.

Secondary

MeasureTime frameDescription
Change in IIEF-EF ScoresBaseline, Month 6International Index of Erectile Function - Erectile Function Subdomain Score (IIEF-EF) is a 5-item subdomain self- evaluation questionnaire of erectile function with a total score ranging from 0-25 with the higher score indicating better erectile function. Score ranges are commonly interpreted as: Severe ED: 0-10, Moderate ED: 11-16, Mild ED: 17-21, No ED / Normal erectile function: 22-25. Change from Baseline at Month 6 reported.
Percentage of Participants Achieving MCID in IIEF-EF at Any Post-treatment Timepoint in Each Group.Baseline, Month 3, or Month 6IIEF-EF is a 5-item subdomain self- evaluation questionnaire of erectile function with a total score ranging from 0-25 with the higher score indicating better erectile function. Mild Clinically Important Difference (MCID) is attained via an increase of 2 points in IIEF-EF score for participants with mild ED and an increase of 5 points for participants with moderate ED. Participants are counted as achieving MCID if they meet the criteria at either the Month 3 or Month 6 assessment (or both).
Percentage of Participants Who Either Decrease or Discontinue Use of PDE5i After Three Months Post-therapy Compared to Control GroupBaseline, Month 3The percentage of participants who report either a reduction in frequency of PDE5 inhibitor use or complete discontinuation of PDE5 inhibitors at 3 months following completion of the intervention, compared to the control group. PDE5 inhibitor use will be assessed through participant self-report. A decrease in use is defined as a reduction in dose or frequency. Discontinuation is defined as complete cessation of PDE5 inhibitor use. The percentage will be calculated as the number of participants meeting either criterion divided by the total number of participants in each group.

Countries

United States

Contacts

PRINCIPAL_INVESTIGATOREmad Ibrahim, MD

University of Miami

Baseline characteristics

Characteristic
Age, Continuous54 years
STANDARD_DEVIATION 9.3
Ethnicity (NIH/OMB)
Hispanic or Latino
16 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
11 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
3 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
1 Participants
Race (NIH/OMB)
Black or African American
2 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
2 Participants
Race (NIH/OMB)
White
47 Participants
Sex: Female, Male
Female
0 Participants
Sex: Female, Male
Male
30 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 300 / 29
other
Total, other adverse events
0 / 300 / 29
serious
Total, serious adverse events
0 / 300 / 29

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 23, 2026