Tryptophan as a Modulating Factor in the Antimigraine Efficacy of Triptans
TRP-Triptans
2 other identifiers
observational
144
1 country
1
Brief Summary
Migraine is a leading cause of disability, and while triptans are commonly used to treat migraine attacks, over 20% of patients don't respond well to them. This study aims to understand why some people don't benefit from triptans. One key focus is tryptophan, an amino acid that plays a role in migraine and is involved in producing serotonin, which affects pain and inflammation. The study will compare levels of tryptophan and its by-products in patients who respond well to triptans versus those who don't. It will also look at how conditions like inflammatory bowel disease may affect tryptophan absorption. The goal is to improve migraine treatments tailored to different patient needs, though participants may not experience immediate personal benefits.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for all trials
Started Mar 2026
1 active site
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Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
September 10, 2025
CompletedFirst Posted
Study publicly available on registry
September 17, 2025
CompletedStudy Start
First participant enrolled
March 5, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 1, 2028
ExpectedStudy Completion
Last participant's last visit for all outcomes
March 1, 2028
March 9, 2026
March 1, 2026
2 years
September 10, 2025
March 6, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Plasma tryptophan levels
Variation in plasma tryptophan levels between triptan-resistant and triptan-responsive migraine patients.
Baseline
Secondary Outcomes (7)
Serotonin levels
Baseline
Kynurenine levels
Baseline
Levels of neutral amino acids
Baseline
Levels of cytokines (IL-6, IL-10, IL-1α, IL-1β)
Baseline
Dietary tryptophan intake
Baseline
- +2 more secondary outcomes
Other Outcomes (2)
Hospital Anxiety and Depression Scale
Baseline
Headache Impact
Baseline
Study Arms (2)
Migraineurs responding to triptans
Blood collection
Migraine sufferers resistant to triptans
Blood collection
Interventions
Blood sampling. For patients who have had their cerebrospinal fluid sample taken as part of their treatment, a surplus sample will be used to perform the same measurements.
Eligibility Criteria
Participants in the study will be recruited from the following centers: * Centre 01: CHU de Clermont-Ferrand, Gabriel Montpied site, located at 58 Rue Montalembert, 63000 Clermont-Ferrand, France. * Centre 02: Headache Emergency Center, Hôpital Lariboisière, located at 2 Rue Ambroise Paré, 75010 Paris, France.
You may qualify if:
- Cisgender women, premenopausal, aged 18 to 50 years.
- Cisgender men, aged 18 to 50 years.
- Diagnosed with migraine (according to ICHD-3 criteria).
- Diagnosed as responders or non-responders to triptans (according to the criteria of Sacco et al., 2022).
- Permitted comparison groups include: triptans used alone or in combination with other migraine treatments (e.g., NSAIDs, acetaminophen, ergotamine, opioids, antiemetics).
- All routes of administration and all dosages.
- Affiliation with a social security system.
You may not qualify if:
- Patients under guardianship, curatorship, deprivation of liberty, or legal protection
- Pregnant and breastfeeding women
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- University of the Basque Country (UPV/EHU)collaborator
- Lariboisière Hospitalcollaborator
- University Hospital, Clermont-Ferrandlead
Study Sites (1)
CHU de Clermont-Ferrand
Clermont-Ferrand, France
Biospecimen
Blood
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Xavier Moisset
CHU de Clermont-Ferrand
- PRINCIPAL INVESTIGATOR
Cristina Alba-Delgado
Université d'Auvergne
Central Study Contacts
Study Design
- Study Type
- observational
- Observational Model
- CASE CONTROL
- Time Perspective
- CROSS SECTIONAL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
September 10, 2025
First Posted
September 17, 2025
Study Start
March 5, 2026
Primary Completion (Estimated)
March 1, 2028
Study Completion (Estimated)
March 1, 2028
Last Updated
March 9, 2026
Record last verified: 2026-03
Data Sharing
- IPD Sharing
- Will not share