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Not yet recruitingNCT07802587Updated Sep 3, 2026

Radicle PerformanceTM VKN: A Study Assessing the Impact of Health and Wellness Products on Fatigue and Related Health Outcomes

An interventional study of Placebo Health Performance Control and Active Health Performance Product in Fatigue, sponsored by Radicle Science. Not yet recruiting at 1 site in United States. Open to participants aged 35 Years to 60 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-09-03.

Sponsored by Radicle Science · Not applicable, Interventional, and Other

Phase
Not applicable
Study type
Interventional
Enrollment
650
Allocation
Randomized
Ages
35 Years to 60 Years
Sex
All
01

Study summary

Radicle Performance™ VKN: A randomized, double-blind, placebo controlled direct-to-consumer study assessing the impact of health and wellness products on fatigue and related health outcomes.

Read the detailed description

This is a randomized, double-blind, placebo-controlled study conducted with adult participants, residing in the United States. Eligible participants will (1) be aged 35-60, (2) actively participant in non-professional aerobic activities 2 or more times a week, (3) have the opportunity for meaningful improvement (at least 30%) in their primary health outcome, (4) experience a decrease in sports performance due to tiredness, and (5) express acceptance in taking a product and not knowing its formulation until the end of the study. Participants that report a known contraindication or with wellestablished, significant safety concerns due to illness will be excluded. Heavy drinkers and those who report they are pregnant, trying to become pregnant, or breastfeeding will be excluded. Participants that report taking medications with a known contraindication or with well-established, significant safety concerns will be excluded. Self-reported data are collected electronically from eligible participants for 5 weeks. Participant reports of health indicators will be collected at enrollment and throughout the active period of study product usage. All study assessments will be electronic; there are no in-person visits or assessments for this real-world evidence study.

02

Conditions studied

  • Fatigue

Browse trials for

03

In context

Fatigue

2,229 studies on the registry are indexed under Fatigue; 426 are open to participants now.

This study's planned enrollment of 650 is above the median of 54 across 1,757 interventional studies indexed under Fatigue.

Browse Fatigue studies →

Lead sponsor

Radicle Science is the lead sponsor of 66 studies on the registry; 13 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
35 Years to 60 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

Participants must meet all the following criteria:

  • Adults, aged 35-60 at the time of electronic consent, inclusive of all ethnicities, races, and gender identities

    • Assigned sex at birth will determine sex-specific recruitment and PROs (male vs female) employed, when needed
  • Experiencing fatigue and/or perceiving a decline in sports performance due to tiredness
  • 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

3.2 Exclusion

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 and/or a significant safety risk with any of the study product ingredients.

    • 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, 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
  • Participants residing in the states of New York, New Jersey, or Rhode Island are eligible to enroll in the main study and will complete all primary study activities. However, these participants are not eligible to participate in the biomarker collection. This restriction is due to state regulatory requirements governing direct-to-consumer at-home laboratory specimen collection and processing that cannot be accommodated within the fully decentralized design of the collection. No alternative collection pathway is available under the current protocol.

    • To ensure compliance, state-of-residence logic is built into the enrollment platform. Participants who indicate a residential address in New York, New Jersey, or Rhode Island will not be presented with the biomarker collection consent or any associated study materials. This automated screening ensures that ineligible participants are not inadvertently enrolled in the collection. These participants will otherwise proceed through full main study enrollment and participation without interruption.
Terms in these criteria, in plain language(3)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

NYHA class (heart failure)

The New York Heart Association’s four classes of how much heart failure limits physical activity.

I
No limits: ordinary activity causes no undue tiredness or breathlessness.
II
Slight limits: comfortable at rest, ordinary activity causes symptoms.
III
Marked limits: comfortable at rest, less than ordinary activity causes symptoms.
IV
Symptoms even at rest; any activity makes them worse.

Studies set their own limit — many outside heart failure leave out class III–IV, while heart failure studies may ask for a particular class. Check the class this study names.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

05

Study design

Phase
Not applicable
Primary purpose
Other
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
650 participants (estimated)

Study arms

  • Experimental
    Active Health Performance Product 1

    Active Health Performance Product 1

    Dietary Supplement: Active Health Performance Product

  • Placebo comparator
    Placebo Health Performance Control

    Placebo Health Performance Control

    Dietary Supplement: Placebo Health Performance Control

Interventions

  • Dietary supplementPlacebo Health Performance Control

    Participants will use their Placebo Health Performance Control as directed for a period of 4 weeks

  • Dietary supplementActive Health Performance Product

    Participants will use their Active Health Performance Product as directed for a period of 4 weeks

06

What researchers measure

Primary outcomes

  1. Change in fatigue

    Fatigue score as assessed by Patient Reported Outcome Measurement System (PROMIS) Fatigue 8A (scale 8-40; where higher scores correspond to more severe fatigue)

    Time frame: 5 weeks

Secondary outcomes

  1. Change in sleep

    Sleep score as assessed by PROMIS Sleep Disturbance 8A (scale 8-40; where higher scores correspond to higher levels of sleep disturbance)

    Time frame: 5 weeks

  2. Change in feelings of stress

    Stress score as assessed Perceived Stress Scale 4 (PSS-4) (scale 0-16; where lower scores correspond to less stress)

    Time frame: 5 weeks

Other outcomes

  1. Minimal clinically important difference (MCID) in fatigue

    Minimal clinically important difference (MCID) in fatigue: Likelihood of experiencing minimal clinically important difference in fatigue score as assessed by PROMIS Fatigue 8A (scale 8-40; where higher scores correspond to more severe fatigue)

    Time frame: 5 weeks

  2. Minimal clinically important difference (MCID) in sleep

    Minimal clinically important difference (MCID) in sleep: Likelihood of experiencing minimal clinically important difference in sleep score as assessed by PROMIS Sleep Disturbance 8A (scale 8-40; where higher scores correspond to higher levels of sleep disturbance)

    Time frame: 5 weeks

  3. Minimal clinically important difference (MCID) in feelings of stress

    Minimal clinically important difference (MCID) in feelings of stress: Likelihood of experiencing minimal clinically important difference in feelings of stress as assessed by Perceived Stress Scale (PSS-4) (scale 0-16; where lower scores correspond to less stress)

    Time frame: 5 weeks

07

Study locations

1 site
08

References and documents

Related links

Individual participant data

Plan to share: No — Data will not be shared with researchers outside of Radicle Collaborators on this study.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 3, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07802587
Lead sponsor
Radicle Science
Responsible party
Sponsor
First posted
Sep 3, 2026
Start date
Sep 1, 2026 (estimated)
Primary completion
Sep 1, 2027 (estimated)
Completion
Sep 1, 2027 (estimated)
Last update
Sep 3, 2026

Study contacts

Study Manager
Contact
studymgmt@radiclescience.com
858-779-0086
Susan Hewlings
Contact
susan.hewlings@radiclescience.com
760-281-3898
Susan Hewlings
principal investigator · Radicle Science

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Aug 2026. You cannot join it, but the record below documents what was studied.

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