Dietary Nitrate and Erectile Dysfunction
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ClinicalTrials.gov Identifier: NCT04116060 |
Recruitment Status : Unknown
Verified January 2021 by Fadi Al-Rashid, University Hospital, Essen.
Recruitment status was: Recruiting
First Posted : October 4, 2019
Last Update Posted : January 25, 2021
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An expanding number of studies suggest a therapeutic role for nitrate and nitrite, most notably in treatment and prevention of cardiovascular disease including ischemia-reperfusion injury and hypertension. The nutritional aspects of these cardioprotective effects are particularly intriguing since nitrate is abundant in our everyday diet. Nitrate improves vascular functions in old adults and improves ischemia reperfusion injury in experimental models.
Whether dietary nitrate improves erectile dysfunction is not known and will be investigated in the present study.
Condition or disease | Intervention/treatment | Phase |
---|---|---|
Erectile Dysfunction | Dietary Supplement: Dietary Nitrate Dietary Supplement: Control | Not Applicable |
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 40 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Intervention Model Description: | Parallel Assignment to intervention vs. control |
Masking: | Double (Participant, Investigator) |
Masking Description: | Double blinded and randomised |
Primary Purpose: | Basic Science |
Official Title: | Impact of Dietary Nitrate on Erectile Dysfunction |
Actual Study Start Date : | February 17, 2020 |
Estimated Primary Completion Date : | June 1, 2021 |
Estimated Study Completion Date : | August 1, 2021 |

Arm | Intervention/treatment |
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Experimental: Nitrate
Dietary nitrate dissolved in water (0,12 mmol sodium-nitrate/kgBW/day) Dietary Supplement: Dietary nitrate 200 ml tab water with 0,12 mmol/kgBW sodium-nitrate
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Dietary Supplement: Dietary Nitrate
Oral dietary nitrate supplementation with (0,12 mmol/kgBW sodium-nitrate) |
Placebo Comparator: Control
Dietary sodium-chloride dissolved in water (0,12 mmol sodium-chloride/kgBW/day) Dietary Supplement: Dietary sodium-chloride 200 ml tab water with 0,12 mmol/kgBW sodium-chloride
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Dietary Supplement: Control
Placebo Comparator: Dietary sodium-chloride dissolved in water (0,12 mmol sodium-chloride/kgBW/day) |
- The changes of erectile function according to the international index of erectile function (IIEF5) score [ Time Frame: 4 Weeks ]Erectile dysfunction improvement as measured by IIEF5 score (range 5-25)
- Change in oral microbiome [ Time Frame: 4 Weeks ]Change in oral microbiome after dietary nitrate ingestion
- Change in cardiac diastolic function, [ Time Frame: 4 weeks ]Change in cardiac diastolic function as determined by echocardiography via measurement of E/A and E/e' aggregated to display diastolic function

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Ages Eligible for Study: | 30 Years to 80 Years (Adult, Older Adult) |
Sexes Eligible for Study: | Male |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
Patients with erectile Dysfunction (IIEF5: 8-21) PDE-5 Inhibitors Responder Aged 30-80 years
Exclusion Criteria:
- Spinal cord disease
- Insulin dependent Diabetes mellitus
- Prostate cancer after operation, radiotherapy and hormone therapy
- Treatment with NO-Donators or sGC-Activators
- Chronic kidney disease (Stage IV-V)
- Advanced liver dysfunction

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04116060
Contact: Christos Rammos, MD | 020172384808 | Christos.Rammos@uk-essen.de |
Germany | |
University Hospital Essen | Recruiting |
Essen, NRW, Germany, 45122 | |
Contact: Fadi Al-Rashid, Dr.med. 00492017230 fadi.al-rashid@uk-essen.de | |
Principal Investigator: Christos Rammos, MD, PHD |
Study Director: | Tienush Rassaf, Prof | University Hospital, Essen | |
Principal Investigator: | Christos Rammos, MD | University Hospital, Essen |
Responsible Party: | Fadi Al-Rashid, MD, Principal Investigator, University Hospital, Essen |
ClinicalTrials.gov Identifier: | NCT04116060 |
Other Study ID Numbers: |
Nitrate E.D. |
First Posted: | October 4, 2019 Key Record Dates |
Last Update Posted: | January 25, 2021 |
Last Verified: | January 2021 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | Undecided |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |
Erectile Dysfunction Sexual Dysfunction, Physiological Sexual Dysfunctions, Psychological Mental Disorders |