Impact of a Novel Brain Longevity Supplement Containing the Postbiotic Urolithin A (Mitopure) on Cognitive Function and Related Health Outcomes (CLARITY)

March 5, 2026 updated by: Amazentis SA

Radicle Clarity™ 25_RAM: A Randomized, Double-Blind, Placebo-Controlled Direct-to-Consumer Study Assessing the Impact of Health and Wellness Products on Cognitive Function and Related Health Outcomes

This is a parallel group, randomized, double-blind, placebo-controlled clinical study assessing the safety and effects of a novel nutritional product on self-reported cognitive function and health in adults that reside in the USA. Participants will take their assigned study product (active or placebo) for 8 weeks and answer validated electronic surveys assessing cognitive function delivered to them through a text message (SMS) link or through email.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Active, not recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
650

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.
  • Name: Anurag Singh, MD, PhD

Study Contact Backup

Study Locations

  • United States
    • California
      • Encinitas, California, United States, 92024
        • Radicle Science, Inc Office

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

Participants must meet all the following criteria:

  • Adults, at least 40 years of age at the time of electronic consent, inclusive of all ethnicities, races, and gender identities

    o Assigned sex at birth will determine sex-specific recruitment and surveys (male vs female) employed, when needed

  • Resides in the United States
  • Has the opportunity for at least 30% improvement in their primary health outcome
  • Expresses a willingness to take a study product and not know the product identity (active or placebo) until the end of the study

Exclusion Criteria:

Individuals who report any of the following during screening will be excluded from participation:

  • Report being pregnant, trying to become pregnant, or breastfeeding
  • Unable to provide a valid US shipping address and mobile phone number
  • Reports current enrollment in another clinical trial
  • Reports being a heavy drinker (defined as drinking 3 or more alcoholic beverages per day)
  • Unable to read and understand English
  • Reports a current and/or recent (up to 3 months ago) major illness and/or surgery that poses a known, significant safety risk.

  • Reports a diagnosis of cardiac dysfunction, liver or kidney disease that presents a known contraindication and/or a significant safety risk with any of the study product ingredients.

    o NYHA Class III or IV congestive heart failure, atrial fibrillation, uncontrolled arrhythmias, cirrhosis, end-stage liver disease, stage 3b or 4 chronic kidney disease, or kidney failure

  • Reports taking medications that have a well-established moderate or severe interaction, posing a substantial safety risk with any of the study product ingredients.

    o Anticoagulants, antihypertensives, anxiolytics, antidepressants, chemotherapy, immunotherapy, sedative hypnotics, seizure medications, medications that warn against grapefruit consumption, corticosteroids at doses greater than 5 mg per day, diabetic medications, oral anti-infectives (antibiotics, antifungals, antivirals) to treat an acute infection, antipsychotics, MAOIs, or thyroid products

  • Reports current use of the primary ingredient(s) and/or similar product(s) to the active study product(s) that may limit the effects of the study products
  • Lack of reliable daily access to the internet

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Basic Science
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Placebo Comparator: Placebo
Identical Placebo product
Dietary supplement: Placebo Product
Identical placebo product
Active Comparator: Active
Novel nutritional product (containing Mitopure Urolithin A) targeting improvements in cognitive health
Dietary supplement: Active Product
Novel Nutritional Product targeting Cognition

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Cognitive function
Time Frame: 8 weeks
Change in cognitive function score as assessed by PROMIS Cognitive Function 8A (scale 8-40; where higher scores correspond to better cognitive function)
8 weeks

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Adverse Events
Time Frame: 8 weeks
8 weeks
Fatigue
Time Frame: 8 weeks
Change in fatigue score as assessed by Patient Reported Outcome Measurement System (PROMIS) Fatigue 4A (scale 4-20; where higher scores correspond to worse fatigue)
8 weeks
Sleep-related impairment
Time Frame: 8 weeks
Change in sleep score as assessed by PROMIS Sleep-Related Impairment 4a (scale 4-20; where the higher scores correspond to worse sleep)
8 weeks
Cognitive abilities
Time Frame: 8 weeks
Change in Cognitive Abilities score as assessed by PROMIS Cognitive Function - Abilities 8a (scale 8-40; where the higher scores correspond to better cognitive abilities)
8 weeks
Cognitive function (brain health) via smartphone application assessments
Time Frame: 8 weeks
Change in cognitive function evaluated with DANA Brain Vital app
8 weeks
Minimal clinically important difference (MCID) in cognitive function
Time Frame: 8 weeks
Likelihood of achieving minimal clinically important difference in cognitive function score as assessed by PROMIS Cognitive Function 8A (scale 8-40; where higher scores correspond to better cognitive function)
8 weeks
Minimal clinically important difference (MCID) in fatigue
Time Frame: 8 weeks
Likelihood of achieving minimal clinically important difference in fatigue score as assessed by PROMIS Fatigue 4A (scale 4-20; where higher scores correspond to worse fatigue)
8 weeks
Minimal clinically important difference (MCID) in sleep
Time Frame: 8 weeks
Likelihood of achieving minimal clinically important difference in sleep score, as measured by PROMIS Sleep-Related Impairment 4a (scale 4-20; where the higher scores correspond to worse sleep)
8 weeks
Minimal clinically important difference (MCID) in cognitive abilities
Time Frame: 8 weeks
Likelihood of achieving minimal clinically important difference in cognitive abilities score as assessed by PROMIS Cognitive Function - Abilities 8a (scale 8-40; where the higher scores correspond to better cognitive abilities)
8 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Amazentis SA

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Radicle Science (sponsor)

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Susan Hewlings, PhD, Radicle Science Inc.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
July 29, 2025

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
November 20, 2025

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
November 20, 2026

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
July 2, 2025

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 2, 2025

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
July 11, 2025

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
March 6, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 5, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
March 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • RADX-SP-2506_RAM

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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Conditions

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Dietary Supplements

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