Radicle GI Health RDH™: A Study Assessing the Impact of Health and Wellness Products on Gastrointestinal (GI) Health and Related Health Outcomes
Radicle GI Health RDH™: A Randomized, Double-Blind, Placebo-Controlled Direct-to-Consumer Study Assessing the Impact of Health and Wellness Products on Gastrointestinal (GI) Health and Related Health Outcomes
1 other identifier
interventional
550
1 country
1
Brief Summary
A Randomized, Double-Blind, Placebo-Controlled Direct-to-Consumer Study Assessing the Impact of Health and Wellness Products on Gastrointestinal (GI) Health 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 Dec 2025
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
November 13, 2025
CompletedFirst Posted
Study publicly available on registry
November 17, 2025
CompletedStudy Start
First participant enrolled
December 16, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 11, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
December 11, 2026
April 21, 2026
November 1, 2025
12 months
November 13, 2025
April 17, 2026
Conditions
Outcome Measures
Primary Outcomes (1)
Lower GI Collective
Difference between rates of change over time in lower GI score as assessed by a composite of PROMIS Gas and Bloating 13A, Diarrhea 6A, and Constipation 9A (scale 10-134; where the higher scores correspond to worse lower GI health)
7 weeks
Secondary Outcomes (3)
Change in feelings of anxiety
7 weeks
Change in mood (emotional distress-depression)
7 weeks
Change in GI-related Quality of Life (QOL)
7 weeks
Other Outcomes (4)
Minimal clinically important difference (MCID) in lower GI health
7 weeks
Minimal clinically important difference (MCID) in feelings of anxiety
7 weeks
Minimal clinically important difference (MCID) in mood (emotional distress-depression)
7 weeks
- +1 more other outcomes
Study Arms (2)
Active Product 1
EXPERIMENTALGI Health Active Product 1
Placebo Control
PLACEBO COMPARATORGI Health Product Placebo Control
Interventions
Participants will use their GI Health Active Product 1 as directed for a period of 6 weeks.
Participants will use their \[Product Name\] Control as directed for a period of 6 weeks
Eligibility Criteria
You may qualify if:
- Participants must meet all the following criteria:
- Adults, at least 21 years of age 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
- 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
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
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Susan Hewlings
Radicle Science
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
November 13, 2025
First Posted
November 17, 2025
Study Start
December 16, 2025
Primary Completion (Estimated)
December 11, 2026
Study Completion (Estimated)
December 11, 2026
Last Updated
April 21, 2026
Record last verified: 2025-11
Data Sharing
- IPD Sharing
- Will not share
Data will not be shared with researchers outside of Radicle Collaborators on this study.