The REN device (Nerivio by Theranica, ISRAEL) is a neuromodulation device approved by the FDA for acute and/or preventive treatment of migraine in patients of 12 years old and above. It is a wearable device applied to the upper arm. It stimulates C and Aδ noxious fibers using a modulated, symmetrical, biphasic, square pulse with a pulse width of 400 μs, modulated frequency of 100-120 Hz, and up to 40 mA output current which the patient can adjust. The REN device is operated by a designated app that is downloaded to the user's phone prior first use of the Nerivio device.
As part of the sign-up process to the Nerivio app, all patients accept the terms of use which specify that providing personal information is done by their own free will and that their de-identified data may be used for research purposes. Users are not obligated to provide personal information and could treat without providing any feedback. The app includes a secured, personal migraine diary, which enables patients to record and track their migraines and other headaches. At the beginning of each treatment, and again 2 hours after the start of treatment, patients are prompted to record their symptoms, including pain level (none, mild, moderate, severe), functional disability (No limitation, Some limitation, Moderate limitation, Severe limitation), and an indication of which medications, if any, were taken within that 2-hour time window.
This post-marketing RWE study investigates the potential of high usage of Nerivio for the acute treatment of migraine on migraine prevention, using the following outcomes:
1. \- reduction in mean monthly migraine treatment days (MMTD),
2. \- acute treatment efficacy measured 2 h post-treatment
3. \- improve in functional disability
4. \- Device safety
Together, these objectives may provide a comprehensive evaluation of the impact of the high usage of Nerivio for acute treatment as a migraine preventive tool in the migraine adolescent population.
