Evaluating the Efficacy of Platelet-Rich-Plasma (PRP) for Erectile Dysfunction

January 24, 2025 updated by: Premal Patel, MD, University of Manitoba

Pilot Randomized Controlled Trial Evaluating the Efficacy of Platelet-Rich-Plasma (PRP) for Erectile Dysfunction

There is great interest in restorative therapies (platelet-rich plasma (PRP) injections, shockwave therapy and stem cell therapy) for ED given their non-invasive nature. However, data is still limited and requires further research prior to widespread adoption. Unfortunately, therapies such as PRP injections are being widely used without clinical evidence demonstrating its safety or effectiveness for the treatment of erectile dysfunction. 2-7 To date, there are no treatments that address the underlying cause of endothelial dysfunction, although low-intensity shockwave therapy for ED has shown promising results. Platelet-derived therapies targeting inflammation and promoting tissue/nerve regeneration and may represent a potential treatment option towards this direction. The investigators propose to perform Canada's first pilot RCT to evaluate and safety and efficacy of PRP for the treatment of ED.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

The proposed study is a prospective, double-blinded, randomized placebo-controlled trial. This study will take place at the Manitoba Men's Health Clinic (Winnipeg, MB, Canada). All patients will undergo blood sampling in a 60 ml syringe containing 8 mL of anticoagulant. Patients will receive 2 treatments 1 month apart. Preparation of PRP and placebo injections will occur in a separate room. Samples of patients in the placebo arm will be discarded and sample of those randomized to the PRP group will be processed via an FDA-approved platelet separator (Magellan Autologous Platelet Separator; Arteriocyte Medical Systems, Hopkinton, MA) to yield approximately 10 mL of PRP. Once prepared, the patient will be placed in the supine position with a tourniquet placed around the base of the penis. A total of 5 mL will be infused in each corpus cavernosum - slowly retracting the needle for better distribution of PRP into the erectile tissue - over a 2-minute period. The whole procedure will be performed under sterile conditions. Following administration, additional compression of the penis will be performed with a dressing placed around the penile shaft. The penile tourniquet will be removed 20 minutes after the injections and patients are released. The placebo group will include a sterile saline injection. Follow-Up Procedures and Evaluations: Follow-up visits will be conducted at months: 1, 3, 6, after the last treatment session and shall include: Measuring IIEF-EF of patients at the clinic at every follow-up visit, as well as reporting and recording adverse events.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
60

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Study Locations

  • Canada
    • Manitoba
      • Winnipeg, Manitoba, Canada, R3K 1M3

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • The patient must be able willing and able to provide informed consent. The investigators wil enroll males between >30 and <70 years of age who have ED based on IIEF scores (score between 16 and 25.) with patients suffering from erectile dysfunction lasting for over 6 months and not more than 5 years as per history provided by patient.

The patient has been in a stable relationship for over 3 months prior to enrollment with a minimum of 2 sexual attempts per month for at least one month prior to enrollment.

A1C level ≤ 7% within 1 month prior to enrollment.

Exclusion Criteria:

  • Participating in another study within the past three months that may interfere with the results or conclusions of this study, under judicial protection (prison or custody), adult under guardianship, or patient refuses to sign the consent.

History of radical prostatectomy or extensive pelvic surgery, past radiation therapy of the pelvic region within 12 months prior to enrolment, recovering from any cancer within 12 months prior to enrollment.

Neurological disease such as Alzheimer's or Parkinson's disease which affects erectile function at the discretion of the investigator, psychiatric diagnosis or medications such as antidepressants, anxiolytic, antipsychotic that affects erectile function or any other medications at the discretion of the investigator.

Anatomical malformation of the penis, including Peyronie's disease.

A1C level > 7% within 1 month prior to enrollment or history of Insulin dependent diabetes.

The patient is taking blood thinners and has an international normalized ratio (INR) >3.

Received shockwave treatment at least 6 months before enrollment.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

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

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Platelet-Rich-Plasma (PRP)
PRP refers to a treatment where a patient's own blood is used to promote healing. Blood is drawn, processed to concentrate the platelets, and then re-injected into the injured area to stimulate tissue repair.
Biological: Platelet-Rich-Plasma
PRP refers to a treatment where a patient's own blood is used to promote healing. Blood is drawn, processed to concentrate the platelets, and then re-injected into the injured area to stimulate tissue repair.
Placebo Comparator: Saline
Provider will go through the same motions as injecting PRP, but will use saline instead which has no known effect.
Other: Saline
Provider will go through the same motions as injecting PRP, but will use saline instead which has no known effect.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
International Index of Erectile Function (IIEF)
Time Frame: 1, 3, 6 months post-procedure
Follow-up visits will be conducted at months: 1, 3, 6, after the last treatment session and shall include: Measuring IIEF-EF of patients at the clinic at every follow-up visit. This is a validated form of assessing erectile function.
1, 3, 6 months post-procedure

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Adverse Events
Time Frame: 1, 3, 6 months post-procedure
Measuring and recording any adverse events post procedure such as hematomas, fibrosis, infections or worsening symptoms of erectile function.
1, 3, 6 months post-procedure

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
University of Manitoba

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
January 24, 2025

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
March 1, 2025

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
March 1, 2025

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
February 9, 2024

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 9, 2024

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
February 20, 2024

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
March 25, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 24, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
March 1, 2024

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • HS26227

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

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

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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