- Conditions
- Relapsing-Remitting Multiple Sclerosis
- Interventions
- Cladribine, Placebo
- Drug
- Lead sponsor
- EMD Serono Research & Development Institute, Inc.
- Industry
- Eligibility
- 18 Years to 65 Years
- Enrollment
- 867 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2008 – 2011
- U.S. locations
- 17
- States / cities
- Boulder, Colorado • Atlanta, Georgia • Chicago, Illinois + 14 more
Search Results
Search by objective public record fields.
Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results are retrieved from ClinicalTrials.gov and synchronized into the directory. Search pages remain noindex by default.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Showing 1–14
of 14
matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
- Conditions
- Cognitive Function
- Interventions
- Clarity Product Placebo Control, Clarity Active Product
- Dietary Supplement
- Lead sponsor
- Radicle Science
- Industry
- Eligibility
- 21 Years to 45 Years
- Enrollment
- 600 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2026 – 2027
- U.S. locations
- 1
- States / cities
- Del Mar, California
- Conditions
- Cognitive Function
- Interventions
- Clarity Placebo Control, Clarity Active Product
- Dietary Supplement
- Lead sponsor
- Radicle Science
- Industry
- Eligibility
- 21 Years to 105 Years
- Enrollment
- 500 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2025
- U.S. locations
- 1
- States / cities
- Del Mar, California
- Conditions
- Cognitive Function
- Interventions
- Clarity Active Product 1, Clarity Product Placebo Control
- Dietary Supplement
- Lead sponsor
- Radicle Science
- Industry
- Eligibility
- 21 Years to 105 Years
- Enrollment
- 500 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2025
- U.S. locations
- 1
- States / cities
- Del Mar, California
- Conditions
- Multiple Sclerosis (MS)
- Interventions
- Data Collection
- Other
- Lead sponsor
- EMD Serono Research & Development Institute, Inc.
- Industry
- Eligibility
- 18 Years to 65 Years
- Enrollment
- 662 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2019 – 2021
- U.S. locations
- 7
- States / cities
- Atlanta, Georgia • Chicago, Illinois • Baltimore, Maryland + 4 more
- Conditions
- Aging, Cognitive Decline, Brain Fog, Cognitive Function
- Interventions
- Active Product, Placebo Product
- Dietary Supplement
- Lead sponsor
- Amazentis SA
- Industry
- Eligibility
- 40 Years and older
- Enrollment
- 650 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2025 – 2026
- U.S. locations
- 1
- States / cities
- Encinitas, California
- Conditions
- Cognitive Function
- Interventions
- Clarity Product Placebo Control, RS Clarity Active Product
- Dietary Supplement
- Lead sponsor
- Radicle Science
- Industry
- Eligibility
- 35 Years to 60 Years
- Enrollment
- 990 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2026 – 2027
- U.S. locations
- 1
- States / cities
- Del Mar, California
- Conditions
- Cognitive Function
- Interventions
- Clarity Product Placebo Control, Clarity Active Product 1
- Dietary Supplement
- Lead sponsor
- Radicle Science
- Industry
- Eligibility
- 21 Years to 105 Years
- Enrollment
- 850 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2025 – 2026
- U.S. locations
- 1
- States / cities
- Del Mar, California
- Conditions
- Early Alzheimer's Disease
- Interventions
- Lecanemab IV, Placebo, Lecanemab SC
- Drug
- Lead sponsor
- Eisai Inc.
- Industry
- Eligibility
- 50 Years to 90 Years
- Enrollment
- 1,906 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2019 – 2029
- U.S. locations
- 112
- States / cities
- Phoenix, Arizona • Sun City, Arizona • Tucson, Arizona + 84 more
- Conditions
- Adjunctive Treatment of Major Depressive Disorder
- Interventions
- Pimavanserin, Placebo
- Drug · Other
- Lead sponsor
- ACADIA Pharmaceuticals Inc.
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 207 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2016 – 2018
- U.S. locations
- 36
- States / cities
- Birmingham, Alabama • Rogers, Arkansas • Garden Grove, California + 31 more
- Conditions
- Cognitive Function
- Interventions
- Clarity Active Study Product 1.1 Usage, Clarity Active Study Product 2.1 Usage, Clarity Active Study Product 3.1 Usage, Clarity Active Study Product 4.1 Usage, Clarity Active Study Product 4.2 Usage, Clarity Active Study Product 4.3 Usage, Placebo Control Form 1, Placebo Control Form 2, Placebo Control Form 3, Placebo Control Form 4, Placebo Control Form 5, Clarity Active Study Product 5.1 Usage, Clarity Active Study Product 5.2 Usage
- Dietary Supplement
- Lead sponsor
- Radicle Science
- Industry
- Eligibility
- 21 Years to 105 Years
- Enrollment
- 4,826 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2023 – 2024
- U.S. locations
- 1
- States / cities
- Del Mar, California
- Conditions
- Cognitive Function
- Interventions
- Placebo Control Form 1, Clarity Active Study Product 1.1 Usage, Placebo Control Form 2, Clarity Active Study Product 2.1 Usage, Placebo Control Form 3, Clarity Active Study Product 3.1 Usage, Clarity Active Study Product 3.2 Usage, Placebo Control Form 4, Clarity Active Study Product 4.1 Usage, Placebo Control Form 5, Clarity Active Study Product 5.1 Usage, Clarity Active Study Product 5.2 Usage, Placebo Control Form 6, Clarity Active Study Product 6.1 Usage, Placebo Control 6.1.0, Clarity Active Study Product 6.1.1 Usage, Clarity Active Study Product 6.1.2 Usage
- Dietary Supplement
- Lead sponsor
- Radicle Science
- Industry
- Eligibility
- 21 Years to 105 Years
- Enrollment
- 4,794 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2024 – 2025
- U.S. locations
- 1
- States / cities
- Del Mar, California
- Conditions
- Breast Cancer, Neurotoxicity
- Interventions
- Ginkgo Biloba, Placebo
- Drug · Other
- Lead sponsor
- Alliance for Clinical Trials in Oncology
- Other
- Eligibility
- 18 Years and older · Female only
- Enrollment
- 226 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2002 – 2015
- U.S. locations
- 175
- States / cities
- Scottsdale, Arizona • Lompoc, California • Santa Barbara, California + 111 more
- Conditions
- Cognitive Function
- Interventions
- Clarity Product Placebo Control, Clarity Active Product 1, Clarity Active Product 2
- Dietary Supplement
- Lead sponsor
- Radicle Science
- Industry
- Eligibility
- 21 Years to 105 Years
- Enrollment
- 750 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2025 – 2026
- U.S. locations
- 1
- States / cities
- Del Mar, California