Radicle Clarity DSTTM: A Study Assessing the Impact of Health and Wellness Products on Mental Clarity and Related Health Outcomes
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
1 other identifier
interventional
990
1 country
1
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
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Jan 2026
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
December 19, 2025
CompletedFirst Posted
Study publicly available on registry
January 15, 2026
CompletedStudy Start
First participant enrolled
January 22, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
January 21, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
January 21, 2027
April 21, 2026
December 1, 2025
12 months
December 19, 2025
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 COMPARATORClarity Product Placebo Control
RS Active Clarity Product
EXPERIMENTALRS Active Clarity Product
Interventions
Participants will use their Clarity Product Placebo Control as directed for a period of 12 weeks.
Participants will use their RS Clarity Active Product as directed for a period of 12 weeks
Eligibility Criteria
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
- Radicle Sciencelead
Study Sites (1)
Radicle Science Inc.
Del Mar, California, 92014, United States
Related Links
Study Officials
- PRINCIPAL INVESTIGATOR
Susan Hewlings
Radicle Science
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
- 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.