Could a $4 blood pressure pill boost brain energy in Parkinson's?
NCT ID NCT07464028
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This Phase 2 trial tests whether terazosin, a drug already used for high blood pressure, can improve energy production in the brains of people with Parkinson's disease. Researchers will measure changes in a key energy molecule (ATP) in 120 participants over 1.5 years. If it works, it could lead to a new approach to slow the disease.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Terazosin (a drug that may boost energy production in cells)
- What this could lead to
- If successful, this could point toward a new way to slow Parkinson's progression by improving how brain cells produce energy.
- What could go wrong
- This is an early Phase 2 trial with only 120 people. It tests a biological marker (ATP), not yet whether patients feel better. The drug may not show clear benefits or could have side effects.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
-
About 120 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Jul 2026
An estimate. Start dates often move.
- Expected to finish
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Jul 2031
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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50 to 80 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Parkinson's disease
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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.
How to take part
Only the study team decides who joins. These are the ways to reach them.
-
The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- Can a blood bank unlock the genetics of brain disease?
- Sleep disorder may hold the key to spotting Parkinson's years earlier
- Can a gentle brain zapping schedule ease Parkinson's symptoms?
- Can a new pill slow Parkinson's symptoms?
- Dancing away Parkinson's symptoms: tango therapy put to the test