Potential Osteocatabolic Effect Caused by Anti-CGRP mAbs in Migraine Patients Treated With Anti-CGRP mAbs - an Observational Pilot Project With Prospectively Collected Health Related Data

Background: To gain insight on the osteoanabolic activity of anti-CGRP mAbs in patients with migraine as this was not yet specifically investigated in registration or post-approval clinical studies, however, being pathophysiologically plausible. If a clinically relevant, osteocatabolic effect caused by anti-CGRP mAbs will be demonstrated by the present investigation monitoring and mitigating strategies might be required and addressed in dedicated future studies. Objectives: To investigate whether treatment with anti-CGRP mAbs over 6, 12, and 24 months is associated with changes in bone density, structure and/or metabolic turnover in migraine patients. Project Design and Procedures: Prospective collection of health-related clinical data, open label, controlled pilot study. Demographic (ethnicity, age, sex) and physical (age, height) data, data on medical and migraine history will be collected. Clinical procedures include bone mineral measurement (bone densitometry, dxa) performed according to clinical practice; venipunctures for laboratory assessments (haematology and blood chemistry; bone turnover biomarkers P1NP and CTX).

NCT Number	NCT06035458
Lead Sponsor	Ente Ospedaliero Cantonale, Bellinzona
Conditions	Migraine Disorders
Enrollment	42 participants
Start Date	2022-04-13
Primary Completion	2026-12-31 (estimated)
Study Completion	2026-12-31 (estimated)
Updated on ClinicalTrials.gov	2025-07-28