21,442
Participants
Start Date
June 30, 2015
Primary Completion Date
July 31, 2022
Study Completion Date
June 5, 2023
Cocoa extract
2 capsules each day containing a total of 500 mg cocoa flavanols, including 80 mg (-)-epicatechin, and 50 mg theobromine
Multivitamin
Multivitamin
Cocoa extract placebo
Cocoa extract placebo
Multivitamin placebo
Multivitamin placebo
Fred Hutchinson Cancer Research Center, Seattle
Brigham and Women's Hospital, Boston
Collaborators (1)
Fred Hutchinson Cancer Center
OTHER
Mars, Inc.
INDUSTRY
Pfizer
INDUSTRY
Brigham and Women's Hospital
OTHER