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Completed

NCT Number: NCT05837923

Radicle Relief 2: A Study of Health and Wellness Products on Pain and Health Outcomes

A randomized, blinded, placebo-controlled study assessing the impact of health and wellness products on pain and other health outcomes

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Key information

Age range

21 year–105 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Radicle Science, Inc

Del Mar, California, 92014, United States

About this study

This is a randomized, blinded, placebo-controlled study conducted with adult participants, age 21 and older and residing in the United States.

Eligible participants will (1) endorse a desire for less pain, (2) indicate an interest in taking a health and wellness product to potentially help their pain, and (3) express acceptance in taking a product and not knowing its formulation until the end of the study.

Participants with known liver or kidney disease, heavy drinkers, and those who report they are pregnant, trying to become pregnant, or breastfeeding will be excluded. Those taking certain medications will be excluded.

Self-reported data are collected electronically from eligible participants over 7 weeks. Participant reports of health indicators will be collected during baseline, throughout the active period of study product use, and in a final survey. All study assessments will be electronic; there are no in-person visits or assessments for this real-world evidence study.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Adults, 21 years of age and older at the time of electronic consent, inclusive of all ethnicities, races, genders and/or gender identities
  • Resides in the United States
  • Endorses less pain as a primary desire
  • Selects pain and/or looking to improve their pain as a reason for their interest in taking a health and wellness product
  • 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

  • Reports being pregnant, trying to become pregnant, or breastfeeding
  • Unable to provide a valid US shipping address and mobile phone number
  • The calculated validated health survey (PRO) score during enrollment represents less than mild severity
  • Reports a diagnosis of liver or kidney disease
  • Reports being a heavy drinker (defined as drinking 3 or more alcoholic beverages per day)
  • Unable to read and understand English
  • Reports current enrollment in a clinical trial
  • Lack of reliable daily access to the internet
  • Reports current or recent (within 3 months) use of chemotherapy or immunotherapy
  • Reports taking medications with a known moderate or severe interaction with any of the active ingredients studied, or a substantial safety risk: Anticoagulants, a medication that warns against grapefruit consumption, corticosteroids at doses greater than 5 mgs per day, oral anti-infectives (antibiotics, antifungals, antivirals) to treat an acute infection, antipsychotics, or MAOIs (monoamine oxidase inhibitors)
  • Reports a diagnosis of heart disease when a known contraindication exists for any of the active ingredients studied: NYHA (New York Heart Association) Class III or IV congestive heart failure, Atrial fibrillation, Uncontrolled arrhythmias

Treatment and study plan

Relief Active Study Product 1.1 Usage

Dietary Supplement

Participants will use their Radicle Relief Active Study Product 1.1 as directed for a period of 6 weeks.

Relief Active Study Product 1.2 Usage

Dietary Supplement

Participants will use their Radicle Relief Active Study Product 1.2 as directed for a period of 6 weeks.

Placebo Control Form 1

Dietary Supplement

Participants will use their Placebo Control Form 1 as directed for a period of 6 weeks.

Relief Active Study Product 2.1 Usage

Dietary Supplement

Participants will use their Radicle Relief Active Study Product 2.1 as directed for a period of 6 weeks.

Placebo Control Form 2

Dietary Supplement

Participants will use their Placebo Control Form 2 as directed for a period of 6 weeks.

Placebo Control Form 3

Dietary Supplement

Participants will use their Placebo Control Form 3 as directed for a period of 6 weeks.

Relief Active Study Product 3.1 Usage

Dietary Supplement

Participants will use their Radicle Relief Active Study Product 3.1 as directed for a period of 6 weeks.

Relief Active Study Product 3.2 Usage

Dietary Supplement

Participants will use their Radicle Relief Active Study Product 3.2 as directed for a period of 6 weeks.

Relief Active Study Product 3.3 Usage

Dietary Supplement

Participants will use their Radicle Relief Active Study Product 3.3 as directed for a period of 6 weeks.

Primary outcomes

  1. Change in pain interference

    Time frame: 6 weeks

    Mean difference in pain interference score as assessed by Patient Reported Outcome Measurement System (PROMIS) Pain Interference 6A (scale 6-30; with higher scores corresponding to greater pain interference)

Secondary outcomes

  1. Change in neuropathic pain

    Time frame: 6 weeks

    Mean difference in neuropathic pain score as assessed by PROMIS Neuropathic Pain 5A (scale 5-25; with higher scores corresponding to greater neuropathic pain)

  2. Change in nociceptive pain

    Time frame: 6 weeks

    Mean difference in nociceptive pain score as assessed by PROMIS Nociceptive Pain 5A (scale 5-25; with higher scores corresponding to greater nociceptive pain)

  3. Change in pain intensity

    Time frame: 6 weeks

    Mean difference in pain intensity score as assessed by PROMIS Pain Intensity 1A (scale 1-10; with 0 being 'No pain' and 10 being 'The worst imaginable pain')

  4. Change in feelings of anxiety

    Time frame: 6 weeks

    Mean difference in anxiety score as assessed by PROMIS Anxiety 4A (scale 4-20; with higher scores corresponding to more severe anxiety)

  5. Change in sleep

    Time frame: 6 weeks

    Mean difference in sleep score as assessed by PROMIS Sleep Disturbance Form 4A (scale 4-20; with higher scores corresponding to more severe sleep disturbance)

  6. Change in energy (fatigue)

    Time frame: 6 weeks

    Mean difference in fatigue score as assessed by PROMIS Fatigue 4A (scale 4-20; with higher scores corresponding to greater fatigue)

  7. Minimal clinically important difference (MCID) in pain interference

    Time frame: 6 weeks

    Likelihood of experiencing MCID in pain interference score as assessed by PROMIS Pain Interference 6A

  8. Minimal clinically important difference (MCID) in neuropathic pain

    Time frame: 6 weeks

    Likelihood of experiencing MCID in neuropathic pain score as assessed by PROMIS Neuropathic Pain 5A

  9. Minimal clinically important difference (MCID) in nociceptive pain

    Time frame: 6 weeks

    Likelihood of experiencing MCID in nociceptive pain score as assessed by PROMIS Nociceptive Pain 5A

  10. Minimal clinically important difference (MCID) in pain intensity

    Time frame: 6 weeks

    Likelihood of experiencing MCID in pain intensity score as assessed by PROMIS Pain Intensity 1A

Other outcomes

  1. Change in focus (cognitive function)

    Time frame: 6 weeks

    Mean difference in cognitive function score as assessed by PROMIS Cognitive Function 4A (scale 4-20; with higher scores corresponding to greater cognitive function)

  2. Change in mood (emotional distress-depression)

    Time frame: 6 weeks

    Mean difference in emotional distress score as assessed by PROMIS Emotional Distress- Depression 4A (scale 4-20; with higher scores corresponding to greater levels of emotional distress)

  3. Change in libido

    Time frame: 6 weeks

    Mean difference in libido score as assessed by PROMIS Sexual Interest 2.0 (scale 2-10; with higher scores corresponding to greater interest in sexual activity)

Sponsors and collaborators

Lead sponsor

Radicle Science

Industry

Registry information

Official study title

Radicle™ Relief 2: A Randomized, Blinded, Placebo-Controlled Direct-to-Consumer Study of Health and Wellness Products on Pain and Other Health Outcomes

Important dates

Study start
2024
Primary completion
2024
Study completion
2024
First posted
May 1, 2023
Registry last updated
Oct 6, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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