NCT07342192

Brief Summary

Radicle Clarity DSTTM: A randomized, double-blind, placebo-controlled direct-to-consumer study assessing the impact of health and wellness products on mental clarity and related health outcomes.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
990

participants targeted

Target at P75+ for not_applicable

Timeline
8mo left

Started Jan 2026

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress29%
Jan 2026Jan 2027

First Submitted

Initial submission to the registry

December 19, 2025

Completed
27 days until next milestone

First Posted

Study publicly available on registry

January 15, 2026

Completed
7 days until next milestone

Study Start

First participant enrolled

January 22, 2026

Completed
12 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 21, 2027

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 21, 2027

Last Updated

April 21, 2026

Status Verified

December 1, 2025

Enrollment Period

12 months

First QC Date

December 19, 2025

Last Update Submit

April 17, 2026

Conditions

Outcome Measures

Primary Outcomes (1)

  • Change in cognitive function

    Change in cognitive function: Difference in rates of change over time in cognitive function score as assessed by PROMIS Cognitive Function 8A (scale 8-40; where lower scores correspond to worse cognitive function)

    13 weeks

Secondary Outcomes (3)

  • Change in fatigue

    13 weeks

  • Change in sleep-related impairment

    13 weeks

  • Change in cognitive abilities

    13 weeks

Other Outcomes (4)

  • Minimal clinically important difference (MCID) in cognitive function

    13 weeks

  • Minimal clinically important difference (MCID) in fatigue

    13 weeks

  • Minimal clinically important difference (MCID) in sleep

    13 weeks

  • +1 more other outcomes

Study Arms (2)

Placebo Clarity Control

PLACEBO COMPARATOR

Clarity Product Placebo Control

Dietary Supplement: Clarity Product Placebo Control

RS Active Clarity Product

EXPERIMENTAL

RS Active Clarity Product

Dietary Supplement: RS Clarity Active Product

Interventions

Participants will use their Clarity Product Placebo Control as directed for a period of 12 weeks.

Placebo Clarity Control
RS Clarity Active ProductDIETARY_SUPPLEMENT

Participants will use their RS Clarity Active Product as directed for a period of 12 weeks

RS Active Clarity Product

Eligibility Criteria

Age35 Years - 60 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Participants must meet all the following criteria:
  • Adults, 35-60 years of age (inclusive) at the time of electronic consent, inclusive of all ethnicities, races, and gender identities
  • 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

You may not qualify if:

  • Individuals who report any of the following during screening may 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 at a 7th grade level
  • 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.
  • 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.
  • 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 and/or pose a safety risk
  • Lack of reliable daily access to the internet
  • Reports current use of prescription medication(s) for cognitive enhancement
  • Reports current regular cannabis use

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Radicle Science Inc.

Del Mar, California, 92014, United States

RECRUITING

Related Links

Study Officials

  • Susan Hewlings

    Radicle Science

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Masking Details
The investigator is blinded to the participants' assigned study products. Participants are blinded to the study product they received.
Purpose
OTHER
Intervention Model
PARALLEL
Model Details: Participants will be stratified based on their assigned sex at birth and health outcome score during enrollment, then randomized to one of the study arms. Each participant will have an equal chance of being assigned to any study arm.
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

December 19, 2025

First Posted

January 15, 2026

Study Start

January 22, 2026

Primary Completion (Estimated)

January 21, 2027

Study Completion (Estimated)

January 21, 2027

Last Updated

April 21, 2026

Record last verified: 2025-12

Data Sharing

IPD Sharing
Will not share

Data will not be shared with researchers outside of Radicle Collaborators on this study.

Locations