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Could a custom amino acid boost help Parkinson's patients?

NCT ID NCT07115563

Symptom relief Sponsor: Cristina Colon-Semenza Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 25, 2026 · Last updated Aug 14, 2026 · Updated 4 times

Summary

This study is testing whether a specially designed amino acid supplement can improve nutrition, reduce oxidative stress, and boost physical and mental health in people with Parkinson's disease. Thirty adults aged 60-80 with Parkinson's will take either the supplement or a placebo daily for six months. Researchers will measure changes in blood amino acids, antioxidant levels, body composition, and overall function.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
targeted amino acid supplement (leucine, tryptophan, arginine, taurine, glutamate, tyrosine)
What this could lead to
If it works, this could point toward a simple nutritional supplement to help manage symptoms and improve quality of life for people with Parkinson's.
What could go wrong
This is a small, early-phase trial with only 30 participants, so results may not apply to everyone. The supplement may not show meaningful benefits over placebo.

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

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 30 people

The number the study aims to enrol. It can still change while the study runs.

Started

Oct 2025

Expected to finish

Nov 2027

An estimate. End dates often move.

Lead sponsor

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

50 to 90 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusionary Criteria: * Male and Females. * 50-80 Years. * Previous diagnosis of idiopathic Parkinson's Disease by patient report. * Use of dopamine replacement medication (e.g. levodopa) for at least 2 years. * On a stable dose of dopamine replacement medication for at least 3 months with no plans for change in the next two months. Exclusionary criteria * Apparent cognitive impairment as determined by phone screening (Telephone Interview for Cognitive Status \<29). * Diagnosis of Parkinsonism or atypical Parkinson's Disease. * Prescription of Dopamine antagonist. * Any unstable medical condition. * Use of Deep Brain Stimulation. * Gastric or Bowel resection surgery. * Contraindications to blood draw.

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Conditions

The condition(s) this trial relates to.

Parkinson disease

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Parkinson disease (PD)

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    2 sites. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. 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.

Contacts and locations

Locations

  • UConn Health

    RECRUITING

    Farmington, Connecticut, 06030, United States

  • University of Connecticut

    RECRUITING

    Storrs, Connecticut, 06269, United States

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