Autologous PRP and Focal Shock Waves for Erectile Dysfunction

Effectiveness and Safety of Autologous Plasma Rich in Platelets and Focal Shock Waves for the Erectile Dysfunction Treatment

The goal of this clinical trial is to learn if Platelet-rich plasma (PRP) combined with Shock-wave therapy (SWT) works to treat moderate or mild to moderate erectile dysfunction. It will also learn about the safety of this combined therapy.

The main questions it aims to answer are:

• Does Combined therapy PRP + SWT improve erection in men with moderate or mild to moderate erectile dysfunction?
• What medical problems do participants have when receiving Combined therapy PRP + SWT?

Researchers will compare Combined therapy PRP + SWT to placebo therapy (a look-alike substance that contains no PRP) to see if Combined therapy PRP + SWT works to treat moderate or mild to moderate erectile dysfunction.

Participants will:

• Take a lab test to evaluate their platelets
• Answer some questionnaires to assess your erectile function
• Receive Combined therapy PRP + SWT (3 sessions PRP + 6 sessions SWT) or placebo therapy for 9 weeks
• Visit the clinic one month, 3 months, and 6 months after finishing the treatment for checkups and tests

Study Overview

• Status: Active, not recruiting
• Conditions: Erectile Dysfunction
• Intervention / Treatment: Other: Platelet-rich plasma; Other: Sham shock waves therapy; Other: Shock waves therapy; Other: Placebo PRP

Detailed Description

The goal of this clinical trial is to evaluate the effectiveness of intracavernosal autologous platelet-rich plasma therapy, compared with placebo, for the treatment of moderate or mild to moderate erectile dysfunction, measured as improvement in the IIEF-EF questionnaire score.

Study design: Randomized, double-blind, placebo-controlled clinical trial, phase III. The study will include four groups:

• G1 - Autologous PRP: Autologous Platelet Rich Plasma (PRP) + placebo shock waves
• G2 - combined therapy: Autologous PRP + focal shock waves
• G3 - placebo control: Placebo PRP + placebo shock waves

• G4 - shock waves: PRP placebo + shock waves

  116 subjects will be included, who will be randomized in a 1:1:1:1 ratio in the four groups described above.

The change in the International Index of Erectile Function - Erectile Function domain (IIEF-EF) score, the change in the Erection Hardness Score (EHS), and the adverse events will be evaluated at the end of treatment, and 1, 3, and 6 months of follow-up.

• Study Type: Interventional
• Enrollment (Estimated): 116
• Phase: Not Applicable

Contacts and Locations

Study Locations

• Spain
  • Madrid, Spain, 28046
    • Boston Medical Group Spain S.L.U

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Adult; Older Adult
• Accepts Healthy Volunteers: Yes

Description

Inclusion Criteria:

1. Men over 18 years of age.
2. Erectile dysfunction present for more than 3 months in more than 50% of intercourse.
3. Baseline score of the IIEF-EF questionnaire between 11 and 21.
4. Stable heterosexual relationship of at least 6 months.
5. Commitment to have at least 3 vaginal sexual relations per month after completing treatment.
6. Commitment not to use other natural, oral, or intracavernous pharmacological treatments during the treatment and up to 6 months after its completion.
7. A patient who agrees to voluntarily enter the study by signing an informed consent.

Exclusion Criteria:

1. Score of 4 on the EHS scale.
2. Patients with an international normalized ratio (INR) greater than 3.
3. Patients with sickle cell anemia.
4. Patients with clinical suspicion of hypogonadism (ADAM positive).
5. Acromegaly, gigantism, Addison disease, hyperprolactinemia, androgen deficiency.
6. Active bladder, prostate, or colon cancer.
7. Radical prostatectomy or other radical pelvic surgery.
8. History of pelvic radiotherapy.
9. Spinal cord injury or other neurological disease associated with erectile dysfunction.
10. Penile anatomical dysfunction, penile implant.
11. Platelet diseases or coagulation disorders.
12. Treatment with oral anticoagulants.
13. Platelet count outside the normal range (150 to 400 × 109/L).
14. Patients with active infections or lesions of the penis or pubic area.
15. Patients with erectile dysfunction secondary to drug treatment (antiandrogen therapy, Alpha-blockers for benign prostatic hyperplasia, use of corticosteroids, antiparkinsonian drugs, antipsychotics).
16. Patients with erectile dysfunction of psychological origin.
17. Abuse of psychoactive substances (including alcohol).
18. Cognitive or physical illness that prevents you from participating in the study, self-filling out the questionnaires, or attending therapies and controls.
19. Inability to attend therapies and controls.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: Double

Number of Arms

4

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Autologous PRP; 3 injections of 10 cc of autologous Platelet Rich Plasma (PRP) + 6 sessions of placebo shock waves	Other: Platelet-rich plasma; 3 injections of 10 cc of autologous Platelet Rich Plasma (PRP), weeks 1, 5 and 9; Other Names: PRP; Other: Sham shock waves therapy; 6 sessions of sham shock waves, 1 per week; Other Names: Placebo therapy
Experimental: Combined therapy; 3 injections of 10 cc of autologous PRP + 6 sessions of focal shock waves.	Other: Platelet-rich plasma; 3 injections of 10 cc of autologous Platelet Rich Plasma (PRP), weeks 1, 5 and 9; Other Names: PRP; Other: Shock waves therapy; 6 sessions of focal shock waves, 1 per week
Placebo Comparator: Placebo control; 3 injections of 10 cc of saline solution + 6 sessions of placebo shock waves	Other: Sham shock waves therapy; 6 sessions of sham shock waves, 1 per week; Other Names: Placebo therapy; Other: Placebo PRP; 3 injections of 10 cc of saline solution, weeks 1, 5 and 9
Active Comparator: Shock waves; 3 injections of 10 cc of saline solution + 6 sessions of waves of focal shock.	Other: Shock waves therapy; 6 sessions of focal shock waves, 1 per week; Other: Placebo PRP; 3 injections of 10 cc of saline solution, weeks 1, 5 and 9

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Change in IIEF-EF score	Change in International Index of Erectile Function - Erectile Function domain (IIEF-EF) score between baseline and week 21 (3 months after completion of treatment)	From enrollment to the third month of follow-up at 21 weeks

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Change in IIEF-EF score 1- month follow-up	Change in International Index of Erectile Function - Erectile Function domain (IIEF-EF) score between baseline measurement and measurement at week 13	From enrollment to the first month of follow-up at 13 weeks
Change in IIEF-EF score 6 months follow-up	Change in IIEF-EF score between baseline measurement and measurement at week 33	From enrollment to the sixth month of follow-up at 33 weeks
Minimum clinically significant difference	Proportion of patients achieving the minimum clinically significant difference in the IIEF-EF score (5 points)	From enrollment to the first, third and sixth month of follow-up at 13, 21, and 33 weeks
Change in Erection Hardness Score (EHS)	Change in EHS between baseline measurement and measurement at weeks 13, 21, and 33	From enrollment to the first, third and sixth month of follow-up at 13, 21, and 33 weeks
Ability to penetrate	Proportion of patients who accomplish to penetrate after treatment, evaluated by the change in the EHS from 1 or 2 at baseline to 3 or 4 in weeks 13, 21 and 33.	From enrollment to the first, third and sixth month of follow-up at 13, 21, and 33 weeks
Quality of sexual life	Change in the score of the sexual quality of life questionnaire (SLQQ) between the baseline measurement and the measurement at weeks 13, 21 and 33.	From enrollment to the first, third and sixth month of follow-up at 13, 21, and 33 weeks
Global assessment	Change in the score of the global assessment questionnaire (GAQ) at weeks 13, 21 and 33.	From enrollment to the first, third and sixth month of follow-up at 13, 21, and 33 weeks
Adverse events incidence	Incidence of PRP-related adverse events during the study	From the first intervention to end of follow-up at 33 weeks

Collaborators and Investigators

• Sponsor: Elexial Research Limited
• Collaborators: Boston Medical Group
• Investigators: Principal Investigator: Jose Benitez, MD, Boston Medical Group

Study record dates

Study Major Dates

• Study Start (Actual): May 6, 2024
• Primary Completion (Estimated): August 1, 2026
• Study Completion (Estimated): February 1, 2027

Study Registration Dates

• First Submitted: May 23, 2024
• First Submitted That Met QC Criteria: May 23, 2024
• First Posted (Actual): May 29, 2024

Study Record Updates

• Last Update Posted (Actual): May 8, 2026
• Last Update Submitted That Met QC Criteria: May 7, 2026
• Last Verified: May 1, 2026

More Information

Terms related to this study

• Keywords: Randomized clinical trial; Erectile dysfunction; Platelet-rich plasma; Shock wave therapy
• Additional Relevant MeSH Terms: Urogenital Diseases; Genital Diseases; Mental Disorders; Genital Diseases, Male; Male Urogenital Diseases; Sexual Dysfunction, Physiological; Sexual Dysfunctions, Psychological; Erectile Dysfunction
• Other Study ID Numbers: PRP-SW-03; 2022-002985-34 (EudraCT Number)

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: YES
• IPD Plan Description: All individual participant data (IPD) collected throughout the trial, except personal identification data of the participants
• IPD Sharing Time Frame: Beginning 1 month after publication with no end date
• IPD Sharing Supporting Information Type: STUDY_PROTOCOL; ANALYTIC_CODE; CSR

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No
• product manufactured in and exported from the U.S.: No