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Berry extract may sharpen your focus while working from home

NCT ID NCT05683002

Symptom relief Sponsor: Maastricht University Medical Center Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study looks at whether a natural supplement made from aronia berries can help healthy adults aged 18–35 improve their attention and reduce eye strain. Participants take the supplement and complete computer-based tests of memory and focus. The goal is to find a simple, natural way to support brain and eye health during long hours at a screen.

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 44 people

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

Started

Dec 2022

Expected to finish

Jan 2026

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

18 to 35 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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.

Inclusion Criteria: * Healthy men and women, aged between 18-35 years * BMI between 18-30 kg/m2 * Systolic blood pressure \< 160 mmHg and diastolic blood pressure \< 100 mmHg * Stable body weight (weight gain or loss \< 3 kg in the past three months) * Willingness to give up being a blood donor from 8 weeks before the start of the study, during the study and for 4 weeks after completion of the study * No difficult venipuncture as evidenced during the screening visit Exclusion Criteria: * Smoking or smoking cessation \< 12 months * Contact lens wearers * Past refractive surgery * Severe medical conditions, including asthma, chronic obstructive pulmonary disease (COPD), kidney failure, auto-inflammatory diseases, rheumatoid arthritis, diabetes mellitus, cardiovascular disease * Use of dietary supplements or medication affecting the main outcomes of the study * Use of an investigational product within another biomedical intervention trial within the previous month * Familial hypercholesterolemia * Abuse of drugs * More than 3 alcoholic consumptions per day

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As listed by the trial registrant

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

Cognitive function

Contacts and locations

Locations

  • Maastricht University

    Maastricht, Netherlands

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