An observational study in Erectile Dysfunction and Coronary Artery Disease, sponsored by Assiut University. Not yet recruiting. Open to male participants aged 18 Years to 50 Years. Per ClinicalTrials.gov, last updated 2026-09-10.
Sponsored by Assiut University · Observational
This study provides a comprehensive bidirectional assessment to determine the prevalence, clinical severity, and anatomical correlation between erectile dysfunction and coronary artery disease severity in patients presenting to cardiology and sexual health pathways.
Erectile dysfunction (ED) and coronary artery disease (CAD) share a common pathophysiological substrate predominantly driven by systemic endothelial dysfunction, vascular inflammation, and atherosclerosis. Under the "artery size hypothesis," atherosclerotic plaque accumulation leads to clinical symptoms earlier in smaller vessels than in larger ones. Because penile cavernosal arteries are smaller in diameter (1-2 mm) compared to the proximal left anterior descending coronary artery (3-4 mm), lumen obstruction typically manifests as erectile impairment before overt coronary symptoms surface.
Consequently, assessing erectile health provides a critical non-invasive window into systemic vascular disease and serves as an early clinical marker for cardiovascular risk stratification. The 2021 European Society of Cardiology (ESC) Guidelines on cardiovascular disease prevention explicitly mandate evaluating organic ED as an independent risk modifier for silent cardiovascular disease.
701 studies on the registry are indexed under Erectile Dysfunction; 125 are open to participants now.
This study's planned enrollment of 120 is close to the median of 130 across 125 observational studies indexed under Erectile Dysfunction.
Browse Erectile Dysfunction studies →Assiut University is the lead sponsor of 5,078 studies on the registry; 2,178 are open to participants now.
Of its 14 completed or terminated interventional studies of FDA-regulated products, 0 (0%) have results posted.
Counted across the registry records on this site, refreshed daily.
The study population consists of male patients aged 18 to 50 years who present with erectile dysfunction secondary to diabetes mellitus or cardiovascular-related etiology, undergoing clinical evaluation and sexual health assessment in an outpatient setting.
Participants are drawn from eligible patients presenting for routine or specialized cardiovascular and medical care who meet the predefined age and clinical eligibility criteria. The population excludes individuals with primary psychogenic, endocrinological (excluding diabetes mellitus), or neurogenic erectile dysfunction, as well as those with severe systemic comorbidities including cardiogenic shock, hemodynamically unstable cardiovascular disease, NYHA Class III or IV decompensated heart failure, severe hepatic failure, end-stage renal disease on dialysis, active malignancies, or prior history of pelvic trauma/radical prostatectomy.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
1 - Male patients aged between 18 and 50 years. 2-Patients undergoing primary or diagnostic coronary angiography due to suspected or confirmed acute, chronic coronary syndrome or stable angina.
3-Patients providing written to participate in the study and discuss sexual health assessments.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.
Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.
The New York Heart Association’s four classes of how much heart failure limits physical activity.
Studies set their own limit — many outside heart failure leave out class III–IV, while heart failure studies may ask for a particular class. Check the class this study names.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Cancer (malignancy)
Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.
Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
NYHA class (heart failure)
The New York Heart Association’s four classes of how much heart failure limits physical activity.
Studies set their own limit — many outside heart failure leave out class III–IV, while heart failure studies may ask for a particular class. Check the class this study names.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Male patients aged 18-50 undergoing diagnostic or primary coronary angiography for suspected or confirmed acute or chronic coronary syndromes. Patients are evaluated for erectile dysfunction prevalence and severity using the Arabic-validated IIEF-5 questionnaire, with those showing severe ED undergoing pharmaco-penile duplex ultrasonography.
Other: Selective Coronary Angiography
Diagnostic invasive coronary angiography performed to evaluate coronary anatomy, presence of stenosis, and anatomical severity scores (SYNTAX Score and Gensini Score).
Bidirectional Assessment of Erectile Dysfunction and Coronary Artery Disease: Prevalence, Severity, and Clinical Correlation
To determine the prevalence and clinical severity of erectile dysfunction (using the International Index of Erectile Function-5, IIEF-5) in patients diagnosed with coronary artery disease undergoing coronary angiography, and conversely, to assess the prevalence and anatomical severity of CAD in patients presenting with vasculogenic severe ED.
Time frame: Baseline
Bidirectional Assessment of Erectile Dysfunction and Coronary Artery Disease: Prevalence, Severity, and Clinical Correlation
To correlate the severity of ED (IIEF-5 score) with the anatomical complexity and severity of CAD evaluated by coronary angiography (using the SYNTAX score or Gensini score). To evaluate echocardiographic parameters (e.g., left ventricular ejection fract
Time frame: Baseline
No study locations are listed for this record.
Plan to share: Undecided
Start is estimated for Oct 2026; primary completion for Aug 2028, 22 months later.
How these figures are worked out, and which studies are left out of them.
This study is not yet recruiting, as verified in Sep 2026. You cannot join it, but the record below documents what was studied.
Get an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.