Kai

Researchers are evaluating the safety and effectiveness of atogepant, a medicine approved for preventing migraine in adults, in young participants aged 12 to 17 years who experience chronic migraine. The study aims to compare atogepant with a placebo, which looks like the medicine but contains no active drug. It focuses on monitoring side effects and changes in migraine frequency in this pediatric population. Participants will be randomly assigned to receive either atogepant or placebo tablets once daily for 12 weeks in a double-blind design, meaning neither participants nor doctors know who receives which treatment. After the treatment period, participants will be followed for an additional 4 weeks to observe ongoing effects. The study plans to enroll about 420 adolescents across approximately 70 sites worldwide. During the study, participants will attend regular clinic visits where researchers will assess treatment effects through daily diaries, medical exams, blood tests, side effect monitoring, and questionnaires. The main outcomes include the number of participants experiencing adverse events and changes in the average monthly number of migraine days. Secondary measures cover headache days, medication use, quality of life, and migraine-related disability. Total participation lasts about 16 weeks.

Researchers are evaluating the use of rimegepant for intermittent prevention of menstrual migraine in women aged 18 to 45 who experience migraine attacks related to their menstrual cycle. This Phase 3, double-blind, randomized study compares rimegepant with placebo to assess its efficacy and safety during the peri-menstrual period. The study focuses on migraine frequency and severity in women with a history of menstrual migraine and regular menstrual cycles. Participants receive either rimegepant 75 mg orally disintegrating tablets for 7 days during each peri-menstrual period or a matching placebo, along with standard care for acute migraine treatment as needed. The study treatment cycles are repeated over 5 menstrual cycles in the double-blind treatment phase. The study also includes an acute treatment dosing option with rimegepant as needed. During the study, participants will be monitored for changes in the number of migraine and headache days, use of migraine medications, and functional disability related to migraine. Cognitive function is also assessed. Researchers will conduct evaluations over 5 months, covering 5 menstrual cycles, and measure outcomes related to migraine frequency and severity during the peri-menstrual period. Safety and tolerability will be closely monitored throughout the study.