Blood marker may reveal who benefits from ED drug
NCT ID NCT07479901
First seen Mar 24, 2026 · Last updated Jun 22, 2026 · Updated 18 times
Summary
This study looks at whether a blood test measuring the 'atherogenic index' can predict how well the drug tadalafil works for men with erectile dysfunction caused by blood vessel problems. Researchers will give 132 men tadalafil daily for one month and compare their symptom scores before and after treatment. The goal is to see if this simple blood marker can help personalize treatment.
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This is a summary of
the original study
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Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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Contacts and locations
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Locations
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Taksim Training and Research Hospital, Istanbul
Istanbul, Beyoğlu, 34433, Turkey (Türkiye)
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
tadalafil
What this could lead to
If successful, this could help doctors predict which men with erectile dysfunction will respond best to tadalafil based on a simple blood test.
What could go wrong
This is a small, observational study, not a large trial. The link between the blood marker and treatment response may not be strong enough to change clinical practice.
Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.