320
Participants
Start Date
October 1, 2025
Primary Completion Date
July 1, 2029
Study Completion Date
July 1, 2029
Self-saliva sampling
Self-saliva samples are taken every day from D1 inclusive over 1 consecutive cycle, to measure progesterone (P4) and estradiol (E2) concentrations.
Self-collection of dried blood spots
Self-blood sampling is done 5 times during the cycle to measure protéine C-Réactive (CRP) concentrations.
Wearing the connected ring
A connected ring is worn every day of the observed cycle, while maintaining lifestyle habits, to measure daily body temperature, assess heart rate variability and resting heart rate, evaluate physical activity and energy expenditure, assess stress level, and evaluate sleep quality.
Ovulation test
An ovulation test (Ovulatest®) is carried out from day 7 until a test is positive, or until day 39 if ovulation is not detected
Institute of Evolutionary Science of Montpellier, Montpellier
National Research Agency, France
OTHER
Institut National de la Santé Et de la Recherche Médicale, France
OTHER_GOV
Centre National de la Recherche Scientifique, France
OTHER
Institute of Evolutionary Science of Montpellier
UNKNOWN
Université Montpellier
OTHER
University Hospital, Montpellier
OTHER