Investigating the Effects of Cocoa Flavanol on Cognition Assessed Online
Public ClinicalTrials.gov record NCT04582617. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
COSMOS Web: Investigating the Effects of Cocoa Flavanol on Cognition Assessed Online
Study identification
- NCT ID
- NCT04582617
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Not applicable
- Lead sponsor
- Columbia University
- Other
- Enrollment
- 3,959 participants
Conditions and interventions
Conditions
Interventions
- Cocoa Extract Dietary Supplement
- Cocoa Extract Placebo Dietary Supplement
- Multivitamin Dietary Supplement
- Multivitamin placebo Dietary Supplement
Dietary Supplement
Eligibility (public fields only)
- Age range
- 65 Years and older
- Sex
- All
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Aug 25, 2016
- Primary completion
- Dec 30, 2020
- Completion
- Dec 30, 2020
- Last update posted
- Apr 6, 2023
2016 – 2020
United States locations
- U.S. sites
- 2
- U.S. states
- 2
- U.S. cities
- 2
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Brigham and Women's Hospital | Boston | Massachusetts | 02115 | — |
| Columbia University Irving Medical Center | New York | New York | 10032 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT04582617, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Apr 6, 2023 · Synced May 14, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT04582617 live on ClinicalTrials.gov.