About this trial
The goal of this clinical trial is to evaluate whether a low-glutamate diet can improve migraine symptoms in adults with migraine and to explore possible biological changes associated with dietary improvement. The study focuses on whether reducing dietary glutamate intake may influence processes involved in migraine, such as brain excitation, inflammation, and oxidative stress.
The main questions this study aims to answer are:
Does following a low-glutamate diet reduce the number of migraine days and the severity and duration of migraine attacks, and improve quality of life?
Are improvements in migraine symptoms associated with changes in blood-based biological markers related to migraine activity?
Researchers will compare participants assigned to the low-glutamate diet with participants assigned to a wait-list control group to evaluate differences in migraine outcomes and related biological measures.
Participants will:
Complete a baseline run-in period while tracking headaches using a daily migraine diary
Either follow a low-glutamate dietary intervention or continue their usual diet as part of a wait-list control
Complete standardized questionnaires related to migraine symptoms and quality of life
Provide blood samples for laboratory analyses
Undergo neuroimaging assessments (for a subset of participants)
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Men and women of all races and ethnicities
Age 18-75 years
8 headache days per month, and
4 migraine days per month
Disqualifiers
Current pregnancy, plans to become pregnant during the study timeframe, or current breastfeeding
Current use of medications affecting glutamatergic or gamma-Aminobutyric Acid (GABA) neurotransmission (unless discontinued under physician guidance)
Current use of quarterly injectable migraine preventive medications
Unwillingness to modify dietary intake or to stop alcohol and marijuana use during the study
Trial design
Parallel
Treatments tested in this trial
Dietary training
BehavioralSubjects will undergo a 2-hour online training session to teach them how to follow the low glutamate diet. The low glutamate diet is a healthy, whole-food diet designed to limit the intake of free glutamate/aspartate, while also emphasizing the consumption of foods which are high in nutrients that protect against glutamate excitotoxicity and oxidative stress.
Treatment groups
Trial outcomes
Primary outcomes
Migraine days
Changes in the number of migraine days with improvement defined as a ≥50% reduction in migraine days
Patient Global Impression of Change
Changes in the patient Global Impression of Change score, where in this study improvement defined as the score of "much" or "very much" improved. This measure is a simple 1-to-7 scale where patients rate how much their condition or symptoms have improved. 1 means very much improved and 7 means very much worse.
Secondary outcomes
Migraine-specific quality of life
Changes in the quality of life measured by the migraine-specific quality of life. This questionnaire scored 0-100 (higher is better).
Migraine duration
Change in migraine duration (hours)
Migraine intensity
Change in migraine intensity, measured in scale of 0 (least pain) to 10 (highest pain).
Skin carotenoid levels
Change in the skin carotenoid levels (the score is measured by a biophotonic scanner)
Sponsors and contacts
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American University
Lead sponsor
Georgetown University
Collaborator
This trial is not recruiting at the moment. You can still explore other options: