- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT05227248
Chocolate Dynamic Vessel Analysis
February 6, 2022 updated by: Querques Giuseppe
Evaluation of the Effects of Chocolate on Anatomy and Functionality of Retinal Blood Vessels
The study aims at evaluating the effect of dark chocolate consumption on anatomy and functionality of retinal blood vessels by comparing these same parameters after milk chocolate consumption.
Study Overview
Status
Completed
Conditions
Intervention / Treatment
Study Type
Interventional
Enrollment (Actual)
20
Phase
- Not Applicable
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
-
-
-
Milan, Italy, 20134
- Giuseppe Querques
-
-
Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
18 years and older (ADULT, OLDER_ADULT)
Accepts Healthy Volunteers
Yes
Genders Eligible for Study
All
Description
Inclusion Criteria:
- Age of 18 years or older
- Healthy volunteers
- No vascular diseases
- No ocular diseases
- Volunteers capable of understanding informed consent
Exclusion Criteria:
- Patient unable to follow the instructions
- Patient unable to come back for follow-up
- opacity of lens, cornea, or vitreous
- Allergies that contraindicate pupil dilation
- Eye diseases
- Myopia greater than -8.0 Diopter (D),
- Hyperopia greater than 5.0 D
- Astigmatism greater than -3.0 D
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: OTHER
- Allocation: NA
- Interventional Model: SEQUENTIAL
- Masking: NONE
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
EXPERIMENTAL: Main study arm
Patients received intervention 1 and then intervention 2 after 7 weeks
|
Patients were administered 20 grams of dark chocolate
Patients were administered 7.5 grams of milk chocolate
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Retinal perfusion
Time Frame: Baseline, 2 hours after intervention
|
Changes in retinal perfusion using Optical Coherence Tomography Angiography
|
Baseline, 2 hours after intervention
|
Retinal vascular response
Time Frame: Baseline, 2 hours after intervention
|
Changes in retinal vascular response to flicker stimulation using Dynamic Vessels Analysis and Retinal Vessels Analysis
|
Baseline, 2 hours after intervention
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Visual Acuity
Time Frame: Baseline, 2 hours after intervention
|
Best Corrected Visual Acuity changes
|
Baseline, 2 hours after intervention
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Investigators
- Principal Investigator: Francesco Bandello, MD, Ospedale San Raffaele
Publications and helpful links
The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.
General Publications
- de Carlo TE, Romano A, Waheed NK, Duker JS. A review of optical coherence tomography angiography (OCTA). Int J Retina Vitreous. 2015 Apr 15;1:5. doi: 10.1186/s40942-015-0005-8. eCollection 2015.
- Huang Y, Zhang Q, Thorell MR, An L, Durbin MK, Laron M, Sharma U, Gregori G, Rosenfeld PJ, Wang RK. Swept-source OCT angiography of the retinal vasculature using intensity differentiation-based optical microangiography algorithms. Ophthalmic Surg Lasers Imaging Retina. 2014 Sep-Oct;45(5):382-9. doi: 10.3928/23258160-20140909-08.
- McClintic SM, Jia Y, Huang D, Bailey ST. Optical coherence tomographic angiography of choroidal neovascularization associated with central serous chorioretinopathy. JAMA Ophthalmol. 2015 Oct;133(10):1212-4. doi: 10.1001/jamaophthalmol.2015.2126. No abstract available.
- Siedlecki J, Mohr N, Luft N, Schworm B, Keidel L, Priglinger SG. Effects of Flavanol-Rich Dark Chocolate on Visual Function and Retinal Perfusion Measured With Optical Coherence Tomography Angiography: A Randomized Clinical Trial. JAMA Ophthalmol. 2019 Dec 1;137(12):1373-1379. doi: 10.1001/jamaophthalmol.2019.3731.
- Rabin JC, Karunathilake N, Patrizi K. Effects of Milk vs Dark Chocolate Consumption on Visual Acuity and Contrast Sensitivity Within 2 Hours: A Randomized Clinical Trial. JAMA Ophthalmol. 2018 Jun 1;136(6):678-681. doi: 10.1001/jamaophthalmol.2018.0978.
Helpful Links
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start (ACTUAL)
April 9, 2021
Primary Completion (ACTUAL)
July 13, 2021
Study Completion (ACTUAL)
July 13, 2021
Study Registration Dates
First Submitted
January 26, 2022
First Submitted That Met QC Criteria
January 26, 2022
First Posted (ACTUAL)
February 7, 2022
Study Record Updates
Last Update Posted (ACTUAL)
February 23, 2022
Last Update Submitted That Met QC Criteria
February 6, 2022
Last Verified
February 1, 2022
More Information
Terms related to this study
Other Study ID Numbers
- FondazioneSanRaffaele
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
NO
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
No
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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