Switching monoclonal antibodies for migraine treatment

Anti-Calcitonin Gene-Related Peptide (CGRP) Monoclonal Antibody Response After Switching in the Treatment of Migraine

Observational Hospital Clínico Universitario de Valladolid · NCT05785988

This study is testing if switching to a different migraine medication can help people who didn't get better with their first treatment.

Quick facts

Study typeObservational
Enrollment600 (estimated)
Ages18 Years and up
SexAll
SponsorHospital Clínico Universitario de Valladolid Academic / other
Locations1 site (Valladolid)
Trial IDNCT05785988 on ClinicalTrials.gov

What this trial studies

This observational study investigates the effectiveness and tolerability of switching between different monoclonal antibodies targeting calcitonin gene-related peptide (mAb-CGRP) in patients with migraine who did not respond to their initial treatment. It aims to gather real-world evidence on how patients fare when they switch to a different mAb-CGRP after failing the first one. The study will analyze data from patients treated in a clinical setting, focusing on both effectiveness and safety endpoints as per established guidelines.

Who should consider this trial

Good fit: Ideal candidates for this study are adults over 18 years old with a confirmed diagnosis of migraine who have previously been treated with a mAb-CGRP.

Not a fit: Patients with other painful disorders that may interfere with the evaluation of outcomes will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide insights into alternative treatment options for migraine patients who do not respond to their initial monoclonal antibody therapy.

How similar studies have performed: Preliminary evidence suggests that switching between mAb-CGRP therapies may be beneficial, indicating that this approach has potential based on prior findings.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* 1. Age over 18 years old;
* 2. Confirmed diagnosis of migraine, according to the International Classification of Headche Disorders, 3rd version;
* 3. Treatment with a mAb-CGRP as per responsible physician criteria in routine clinical practice.

Exclusion Criteria:

* 1. Unavailability of information prior to the treatment use;
* 2. Other painful disorders that may interfere in the evaluation of the outcomes.

Where this trial is running

Valladolid

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions MigraineHead PainHeadache disordersPainful disordersCalcitonin gene-related peptide
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.