Sharper blood test could uncover hidden cause of high blood pressure
NCT ID NCT07691801
First seen Jul 09, 2026 · Last updated Jul 10, 2026 · Updated 1 time
Summary
This study tests whether a more precise lab technique (mass spectrometry) can improve the captopril test used to diagnose primary aldosteronism, a common but treatable cause of high blood pressure. Researchers will measure aldosterone and renin levels in blood samples from healthy volunteers and patients suspected of having the condition. The goal is to establish a new diagnostic cutoff that helps doctors identify this curable form of hypertension more accurately.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- Active substance
- captopril
- What this could lead to
- If successful, this could lead to a more accurate diagnostic test for primary aldosteronism, helping doctors identify a treatable cause of high blood pressure earlier.
- What could go wrong
- This is a diagnostic study, not a treatment trial. The new cutoff value may not prove significantly better than current methods, and results may not apply to all populations.
This is an AI summary of the original study and may miss details. Read our disclaimer.
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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.
Contacts and locations
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Study contacts
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
Locations
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Peking Union Medical Colledge Hospital
RECRUITINGBeijing, Beijing Municipality, 456350, China
Contact Email: •••••@•••••
Contact Phone: •••-•••-•••• Email: •••••@•••••
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