Accepted for/Published in: Journal of Medical Internet Research
Date Submitted: Feb 23, 2025
Open Peer Review Period: Feb 24, 2025 - Apr 21, 2025
Date Accepted: Jul 17, 2025
(closed for review but you can still tweet)
Warning: This is an author submission that is not peer-reviewed or edited. Preprints - unless they show as "accepted" - should not be relied on to guide clinical practice or health-related behavior and should not be reported in news media as established information.
Digitally enabled AI-interpreted salivary based ovulation prediction: a feasibility study
ABSTRACT
Background:
Females with irregular or unpredictable cycles, including those with polycystic ovary syndrome (PCOS), have limited options for validated at-home ovulation prediction. The majority of over-the-counter ovulation prediction kits use urinary luteinizing hormone (LH) indicators that were optimized for those with regular menstrual cycles exhibiting a predictable mid-cycle LH surge. Artificial intelligence (AI) holds potential to address this health deficit via a smartphone-based salivary ferning ovulation test. Research on populations with irregular menstruation and PCOS can be challenging due to the duration and frequency of menstrual cycles.
Objective:
The objective of this study was to determine the feasibility for participants with diverse menstrual cycle lengths to complete study tasks designed to train and develop an AI model for salivary-based ovulation prediction.
Methods:
Participants were recruited for two menstrual cycles where retention, engagement, and adherence were evaluated. Participation entailed remotely collecting and uploading daily data (saliva, LH values), attending lab visits, and returning biological saliva samples.
Results:
Of the 133 females recruited from February to October 2023 via targeted patient messages and a public research website, 69 were eligible (age 19 to 35 years old at enrollment, currently menstruating, able to read and comprehend English, weigh more than 110 pounds, have an active primary care or gynecological provider, and able to commute to the Mass General Hospital main campus within 10 days of their ovulatory event). Of those who received a Study Kit, 57% of participants (n=17) began data collection, 31% of participants (n=9) provided data for one menstrual cycle, and 24% of participants (n=7) completed the study.
Conclusions:
To optimize future scaled participant completion, the study design would include a more targeted recruitment message to address the high ineligibility status, to streamline study procedures to ease participant burden, and to incorporate health education to equip participants with ovulatory health information to ameliorate the potential stress impacts of observing anovulation. After optimization, when scaled, this study design will provide an AI model with sufficient data to develop a smartphone-based ovulation predictor specifically tested on females with irregular or unpredictable cycles, including those with PCOS. Well informed study design is the foundation to AI advancement and femtech growth, particularity for ovulatory and fertility digital health.
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Copyright
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