Erectile DysfunctionPhase 2NCT04396795
Safety and Efficacy of Autologous Platelet-Rich Plasma for Erectile Dysfunction.
A Phase 2 study testing Autologous Platelet Rich Plasma and Saline solution in people with Erectile Dysfunction, run by University of Miami at 1 site in United States.
Trial summary
The purpose of this study is to evaluate changes in vascular parameters and International Index of Erectile Function (IIEF) scores with the administration of Platelet Rich Plasma (PRP) to participants with Erectile Dysfunction (ED) Read more about this study
- Who is it for?
- Ages 30 to 75 years, men only
- Conditions the study is for
- Erectile Dysfunction
- What is being tested?
- Autologous Platelet Rich Plasma and Saline solution
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 61 participants
- Where
- 1 siteUnited States
- Study dates
- 21 May 2020to 18 Apr 2023
- Phase
- Phase 2
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 30 to 75 years
- Men only
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Be Male
- Be 30 to 75 years of age (inclusive).
- Be able to provide written informed consent.
- Have a diagnosis of ED due to organic origin for at least 6 months prior to consent.
- Sexually active in a stable, heterosexual relationship of more than three months duration.
- IIEF-EF score 11-25 at screening (even if taking a single PDE5).
- 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.
- Agree to comply with all study related tests/procedures.
Who cannot join
- Previous penile surgery of any kind (except circumcision and condyloma removal), such as penile lengthening, penile cancer surgery, penile plication, grafting.
- Previous history of priapism or penile fracture
- 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%).
- 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.
- Psychogenic ED as determined by study investigator.
- Anatomical (Peyronie's Disease or penile curvature that negatively influences sexual activity) or neurological abnormalities in the treatment area.
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- Patients using Intra Cavernous Injection (ICI)for management of ED
- Patients with generalized polyneuropathy, or neurological conditions irrespective of cause, such as severe diabetes, multiple sclerosis or Parkinson's disease.
- 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.
- History of consistent treatment failure with PDE5 inhibitors for therapy of ED.
- 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 Inhibitor or psychotropic medications.
- Hemoglobin a1c >9%.
Trial locations and contacts
1 site in 1 country.
United States1 site
University of Miami Miller School of Medicine
Miami, Florida, 33136
About this study
Official title: A Randomized Control, Double-Blind, Placebo Controlled, Multicenter Clinical Trial on Safety and Efficacy of Autologous Platelet-Rich Plasma Injection Treatment for Erectile Dysfunction.
The purpose of this study is to evaluate changes in vascular parameters and International Index of Erectile Function (IIEF) scores with the administration of Platelet Rich Plasma (PRP) to participants with Erectile Dysfunction (ED)
- Conditions
- Erectile Dysfunction
- Being tested
- Autologous Platelet Rich Plasma, Saline solution
- Keywords
- ED
- Medical subject headings
- Erectile Dysfunction
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Autologous Platelet Rich PlasmaDrug
Also called PRP
Each injection session will consist of a total of 5 mL PRP infused slowly over a 2-minute period; 2.5 mL each injected to the right and left corpus cavernosum.
Saline solutionOther
Each injection session will consist of a total of 5 mL saline solution infused slowly over a 2-minute period; 2.5 mL each injected to the right and left corpus cavernosum
| Study group | Role | What they receive |
|---|---|---|
| PRP group | Experimental | Participants in this group will receive 2 sessions of autologous PRP penile injection, each administered 1 month apart ± 7 days Receives: Drug: Autologous Platelet Rich Plasma |
| Placebo group | Placebo comparator | Participants in this group will receive 2 sessions of placebo injection, each administered 1 month apart ± 7 days. Receives: Other: Saline solution |
What is being measured
The primary outcome is the main question the study is designed to answer.
Number of Participants Achieving MCID in IIEF-EF.
Minimal clinically important difference (MCID) is measured by the number of participants who have achieved an increase in International Index of Erectile Function - Erectile Function Subdomain Score (IIEF-EF) based on their Erectile Dysfunction (ED) severity at baseline (an increase of 2 points from baseline for participants with mild ED and an increase of 5 points for participants with moderate ED). MCID in IIEF-EF scores are used to determine treatment efficacy of PRP compared to placebo. 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. This outcome is reported as the number of participants who achieve MCID in each treatment group.
Measured: 1 month, 3 month, 6 month
Secondary outcomes (4)
Change in IIEF-EF Scores
IIEF-EF is a 5-item subdomain self-evaluation questionnaire of erectile function. Each item is scored from 0-5 with the total score ranging from 0-25 with the higher score indicating better erectile function.
Measured: Baseline up to Month 1, Month 3, and Month 6
Change in Doppler Ultrasound Parameters - Peak Systolic Velocity (PSV)
Change in Peak Systolic Velocity (PSV) assessed in cm/sec via ultrasound.
Measured: Baseline to Month 6
Number of Adverse Events
Incidence of adverse events were reported as all urological and/or reproductive system AEs and all AEs with severity grade 3 or higher. Adverse Events severity was determined using CTCAE v5 criteria.
Measured: 24 weeks
Number of Participants With an End Diastolic Velocity (EDV) Value Greater Than 0, as Assessed by Penile Doppler Ultrasound at Baseline and Month 6.
Number of participants who had an End Diastolic Velocity (EDV) value of greater than 0, as assessed by penile doppler ultrasound.
Measured: Baseline and Month 6
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted21 May 2020
- Study start21 May 2020
- Primary completion23 Jan 2023
- Study completion18 Apr 2023
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (10)Papers the sponsor has linked to this study.
- Other trials for Erectile DysfunctionStudies of the same condition, open and under way.
- More trials run by University of MiamiThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 2
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind
- Who is masked
- Participant, Care provider, Investigator, Outcomes assessor
- Enrolment
- 61 participants (actual)
Sponsor and investigators
- Lead sponsor
- University of Miami
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Ranjith Ramasamy, MD, University of Miami
- Investigators
- Ranjith Ramasamy, MD, Principal investigator, University of Miami
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04396795
- Sponsor's protocol ID
- 20200373
- Status last verified
- Dec 2023
- First submitted
- 3 Apr 2020
- Last updated
- 9 Jan 2024
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Andia I, Maffulli N. Platelet-rich plasma for managing pain and inflammation in osteoarthritis. Nat Rev Rheumatol. 2013 Dec;9(12):721-30. doi: 10.1038/nrrheum.2013.141. Epub 2013 Oct 1.
PubMed 24080861Sampson S, Gerhardt M, Mandelbaum B. Platelet rich plasma injection grafts for musculoskeletal injuries: a review. Curr Rev Musculoskelet Med. 2008 Dec;1(3-4):165-74. doi: 10.1007/s12178-008-9032-5.
PubMed 19468902Xie X, Zhang C, Tuan RS. Biology of platelet-rich plasma and its clinical application in cartilage repair. Arthritis Res Ther. 2014 Feb 25;16(1):204. doi: 10.1186/ar4493.
PubMed 25164150Randelli P, Randelli F, Ragone V, Menon A, D'Ambrosi R, Cucchi D, Cabitza P, Banfi G. Regenerative medicine in rotator cuff injuries. Biomed Res Int. 2014;2014:129515. doi: 10.1155/2014/129515. Epub 2014 Aug 13.
PubMed 25184132Galliera E, Corsi MM, Banfi G. Platelet rich plasma therapy: inflammatory molecules involved in tissue healing. J Biol Regul Homeost Agents. 2012 Apr-Jun;26(2 Suppl 1):35S-42S.
PubMed 23648197Nurden AT, Nurden P, Sanchez M, Andia I, Anitua E. Platelets and wound healing. Front Biosci. 2008 May 1;13:3532-48. doi: 10.2741/2947.
PubMed 18508453Lin G, Shindel AW, Fandel TM, Bella AJ, Lin CS, Lue TF. Neurotrophic effects of brain-derived neurotrophic factor and vascular endothelial growth factor in major pelvic ganglia of young and aged rats. BJU Int. 2010 Jan;105(1):114-20. doi: 10.1111/j.1464-410X.2009.08647.x. Epub 2009 Jun 2.
PubMed 19493269Apel PJ, Ma J, Callahan M, Northam CN, Alton TB, Sonntag WE, Li Z. Effect of locally delivered IGF-1 on nerve regeneration during aging: an experimental study in rats. Muscle Nerve. 2010 Mar;41(3):335-41. doi: 10.1002/mus.21485.
PubMed 19802878Werner S, Grose R. Regulation of wound healing by growth factors and cytokines. Physiol Rev. 2003 Jul;83(3):835-70. doi: 10.1152/physrev.2003.83.3.835.
PubMed 12843410Kushida S, Kakudo N, Morimoto N, Hara T, Ogawa T, Mitsui T, Kusumoto K. Platelet and growth factor concentrations in activated platelet-rich plasma: a comparison of seven commercial separation systems. J Artif Organs. 2014 Jun;17(2):186-92. doi: 10.1007/s10047-014-0761-5. Epub 2014 Apr 20.
PubMed 24748436
Study at a glance
From the registry record, last updated by the sponsor on 9 Jan 2024. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Randomized Control, Double-Blind, Placebo Controlled, Multicenter Clinical Trial on Safety and Efficacy of Autologous Platelet-Rich Plasma Injection Treatment for Erectile Dysfunction.
- ClinicalTrials.gov ID
- NCT04396795
- Acronym / sponsor ID
- 20200373
- Conditions
- Erectile Dysfunction
- Keywords
- ED
- Phase
- Phase 2
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 61 participants (actual)
- Lead sponsor
- University of MiamiUniversity, hospital or other
- Study start
- 21 May 2020 (actual)
- Primary completion
- 23 Jan 2023 (actual)
- Study completion
- 18 Apr 2023 (actual)
- First posted
- 21 May 2020 (actual)
- Results
- Posted 9 Jan 2024
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The purpose of this study is to evaluate changes in vascular parameters and International Index of Erectile Function (IIEF) scores with the administration of Platelet Rich Plasma (PRP) to participants with Erectile Dysfunction (ED)
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind (participant, care provider, investigator, outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| PRP group | Experimental | Drug: Autologous Platelet Rich PlasmaParticipants in this group will receive 2 sessions of autologous PRP penile injection, each administered 1 month apart ± 7 days |
| Placebo group | Placebo comparator | Other: Saline solutionParticipants in this group will receive 2 sessions of placebo injection, each administered 1 month apart ± 7 days. |
Who may qualify
- Ages
- 30 to 75 years
- Sex
- Male only
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (8 listed)
- Be Male
- Be 30 to 75 years of age (inclusive).
- Be able to provide written informed consent.
- Have a diagnosis of ED due to organic origin for at least 6 months prior to consent.
- Sexually active in a stable, heterosexual relationship of more than three months duration.
Key exclusion criteria (12 listed)
- Previous penile surgery of any kind (except circumcision and condyloma removal), such as penile lengthening, penile cancer surgery, penile plication, grafting.
- Previous history of priapism or penile fracture
- 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%).
- 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.
- Psychogenic ED as determined by study investigator.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Autologous Platelet Rich PlasmaAlso: PRPEach injection session will consist of a total of 5 mL PRP infused slowly over a 2-minute period; 2.5 mL each injected to the right and left corpus cavernosum. | Drug | PRP group |
| Saline solutionEach injection session will consist of a total of 5 mL saline solution infused slowly over a 2-minute period; 2.5 mL each injected to the right and left corpus cavernosum | Other | Placebo group |
Primary outcome
Number of Participants Achieving MCID in IIEF-EF.
Time frame: 1 month, 3 month, 6 month
Minimal clinically important difference (MCID) is measured by the number of participants who have achieved an increase in International Index of Erectile Function - Erectile Function Subdomain Score (IIEF-EF) based on their Erectile Dysfunction (ED) severity at baseline (an increase of 2 points from baseline for participants with mild ED and an increase of 5 points for participants with moderate ED). MCID in IIEF-EF scores are used to determine treatment efficacy of PRP compared to placebo. 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. This outcome is reported as the number of participants who achieve MCID in each treatment group.
4 secondary outcomes
Change in IIEF-EF Scores
Time frame: Baseline up to Month 1, Month 3, and Month 6
Change in Doppler Ultrasound Parameters - Peak Systolic Velocity (PSV)
Time frame: Baseline to Month 6
Number of Adverse Events
Time frame: 24 weeks
Number of Participants With an End Diastolic Velocity (EDV) Value Greater Than 0, as Assessed by Penile Doppler Ultrasound at Baseline and Month 6.
Time frame: Baseline and Month 6
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 9 Jan 2024.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Background: PubMed 24080861Andia I, Maffulli N. Platelet-rich plasma for managing pain and inflammation in osteoarthritis. Nat Rev Rheumatol. 2013 Dec;9(12):721-30. doi: 10.1038/nrrheum.2013.141. Epub 2013 Oct 1.
- Background: PubMed 19468902Sampson S, Gerhardt M, Mandelbaum B. Platelet rich plasma injection grafts for musculoskeletal injuries: a review. Curr Rev Musculoskelet Med. 2008 Dec;1(3-4):165-74. doi: 10.1007/s12178-008-9032-5.
- Background: PubMed 25164150Xie X, Zhang C, Tuan RS. Biology of platelet-rich plasma and its clinical application in cartilage repair. Arthritis Res Ther. 2014 Feb 25;16(1):204. doi: 10.1186/ar4493.
- Background: PubMed 25184132Randelli P, Randelli F, Ragone V, Menon A, D'Ambrosi R, Cucchi D, Cabitza P, Banfi G. Regenerative medicine in rotator cuff injuries. Biomed Res Int. 2014;2014:129515. doi: 10.1155/2014/129515. Epub 2014 Aug 13.
- Background: PubMed 23648197Galliera E, Corsi MM, Banfi G. Platelet rich plasma therapy: inflammatory molecules involved in tissue healing. J Biol Regul Homeost Agents. 2012 Apr-Jun;26(2 Suppl 1):35S-42S.
- Background: PubMed 18508453Nurden AT, Nurden P, Sanchez M, Andia I, Anitua E. Platelets and wound healing. Front Biosci. 2008 May 1;13:3532-48. doi: 10.2741/2947.
- Background: PubMed 19493269Lin G, Shindel AW, Fandel TM, Bella AJ, Lin CS, Lue TF. Neurotrophic effects of brain-derived neurotrophic factor and vascular endothelial growth factor in major pelvic ganglia of young and aged rats. BJU Int. 2010 Jan;105(1):114-20. doi: 10.1111/j.1464-410X.2009.08647.x. Epub 2009 Jun 2.
- Background: PubMed 19802878Apel PJ, Ma J, Callahan M, Northam CN, Alton TB, Sonntag WE, Li Z. Effect of locally delivered IGF-1 on nerve regeneration during aging: an experimental study in rats. Muscle Nerve. 2010 Mar;41(3):335-41. doi: 10.1002/mus.21485.
- Background: PubMed 12843410Werner S, Grose R. Regulation of wound healing by growth factors and cytokines. Physiol Rev. 2003 Jul;83(3):835-70. doi: 10.1152/physrev.2003.83.3.835.
- Background: PubMed 24748436Kushida S, Kakudo N, Morimoto N, Hara T, Ogawa T, Mitsui T, Kusumoto K. Platelet and growth factor concentrations in activated platelet-rich plasma: a comparison of seven commercial separation systems. J Artif Organs. 2014 Jun;17(2):186-92. doi: 10.1007/s10047-014-0761-5. Epub 2014 Apr 20.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Ranjith Ramasamy, MD principal investigator
University of Miami
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 2 study testing Autologous Platelet Rich Plasma and Saline solution in people with Erectile Dysfunction, run by University of Miami at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 8 inclusion and 12 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 9 Jan 2024. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Yes. Results are posted in the registry (first posted 9 Jan 2024). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Number of Participants Achieving MCID in IIEF-EF. (time frame: 1 month, 3 month, 6 month). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT04396795, which also lists 10 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 9 Jan 2024.