CEFALY Pregnancy Registry

This will be a prospective research registry from which retrospective research studies will derive. Individuals who are eligible to participate in the CEFALY Pregnancy Registry will be pregnant women who have migraines or headaches. Use of the external Trigeminal Neurostimulation (eTNS) device is not mandatory for participation in the registry, and the registry will include information from individuals who use and do not use eTNS (CEFALY) to treat their migraines or headaches before, during, and after pregnancy.

The ideal candidate for participation will be women within 14 weeks gestation at the time of screening enrollment, as this will minimize any recall bias. However, women in the second and third trimesters during screening and enrollment will not be excluded and may also participate in the registry. The registry will aim to enroll 550 participants per the inclusion and exclusion criteria.

Registry participation, including consent, screening, enrollment, and completion of registry surveys, will be completed online using a confidential survey platform accessed via a publicly available web-based link. Once the simple consent is acknowledged, the potential participant will enter their name, email, phone number and date of birth. The phone number, and email entered are required to conduct the registry data collection process.

Participants will then complete screening questions to assess their eligibility for the registry. If they meet all eligibility requirements, they will be required to upload sufficient evidence of a current intrauterine pregnancy. The registry investigators will verify the uploaded document for accuracy before enrollment. The participant's name and date of birth are required to validate a current pregnancy based on the required uploaded documents during the screening process.

If eligible and documentation of current pregnancy is confirmed, the investigators will enroll the participant in the registry and start the survey process. Enrolled participants who have agreed to participate in the registry will receive an invitation to the requested surveys via automated email and short message service (SMS) text. The links provided in the email and SMS text will automatically direct the participant to the appropriate survey based on the timing of their enrollment, estimated due date, pregnancy status, and date of completion of prior surveys. Before each survey attempt, enrolled participants will need to verify their identity with an automated authentication code provided to their registered email address and phone number they provided during initial screening to verify their data and protect their entered health information.