Pain relief study for IUD insertion pulled before it started

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria Patient Participants: * Provision of signed and dated informed consent form. * Stated willingness to comply with all study procedures and availability for the duration of the study. * English-speaking individual aged 18 years or older. * Presenting for IUD initiation or replacement during ambulatory care visits to the Yale Family Planning service and Center for Women's Health and Midwifery clinic. * Opting for either LNG 52mg or copper T380A IUD. Inclusion Criteria Provider Participants: * Review of the provider participant study Information Sheet and provision of verbal consent. * IUD insertion performed by Yale Family Planning and Center for Women's Health and Midwifery clinic faculty and fellows, as well as OB/GYN residents on their family planning rotation, with IUD insertion competency. * Performing an IUD insertion on a patient participant who meets all patient participant eligibility criteria Exclusion Criteria Patient Participants: * Contraindication to IUD initiation * Current Pelvic Infection * Distorted Uterine Anatomy (I.e., uterine septum, didelphys, uterine fibroids with cavity length greater than 12mm) * Pregnancy * Any other contraindications to IUD insertion as determined by the patient's clinical care staff. * Exclusionary criteria for study participation * Current IUD with no visible strings * Contraindication or allergy to ibuprofen * History of chronic pain disorder * Recent opioid use in the previous 30 days * History of cardiac arrhythmia * History of heart disease (i.e., atrial fibrillation, congestive heart failure) * Presence of an implantable device with an electrical discharge (i.e., pacemaker) * History of epilepsy * BMI \> 50 * History of TENS use * Planned pain intervention outside standard of care OR pre-procedure use of non-standard pain medication