MINT-C Chronic Migraine Research in Phoenix: How to Prepare a Useful Headache Diary

For people living with chronic migraine, it can be difficult to remember exactly how many headache days happened last month, which symptoms came with them, and how much those days changed work, family time, sleep, or plans. A simple headache diary can turn that blur into useful information. It can also make a research conversation more focused.

Arizona Neuroscience Research (ANR) currently lists the MINT-C study for adults with chronic migraine in Phoenix. The listing describes a Phase 3, randomized, placebo-controlled study evaluating Xeomin® (incobotulinumtoxinA) for migraine prevention. The study listing says that participation may involve up to a year, 14 visits including remote telehealth visits, and four injection sessions scheduled every 12 weeks. Whether someone qualifies can only be determined by the research team through the study’s screening process.

This guide explains how a 30-day headache diary can help you prepare for that conversation. It is educational, not a substitute for medical advice, diagnosis, or a study screening. A personal diary does not establish eligibility, and ANR’s team will explain the current study requirements, consent process, and any study-specific tracking they need.

Why a headache diary matters when chronic migraine is part of the conversation

Chronic migraine is more than “a lot of headaches.” Clinicians and research teams need a clear picture of frequency, symptoms, timing, treatments, and impact. A diary helps replace rough estimates such as “most days” or “whenever the weather changes” with details that are easier to discuss.

For a research conversation, a diary can help you describe:

• How many days had any headache or head pain
• How many days had migraine-like features, such as nausea, light or sound sensitivity, or pain made worse by routine activity
• When symptoms started and ended, or whether they lasted across days
• Acute medicines, nonprescription treatments, caffeine, rest, or other strategies used
• Missed work, changed plans, reduced activity, or time spent recovering
• Possible patterns, including sleep disruption, dehydration, meals, stress, weather, hormones, or illness

It is not necessary to prove a trigger or identify a perfect pattern. Migraine often varies. The goal is an honest snapshot of a typical month, including better days.

Start with a practical 30-day format

The best diary is the one you can keep. Some people prefer a paper calendar; others use a notes app, spreadsheet, or migraine app. Choose one place, keep it brief, and update it each day. A diary can take one or two minutes on quiet days and a little longer on difficult days.

What to write on each day

Begin with the date and a simple yes-or-no answer: did you have head pain today? If yes, write an approximate start and end time. If it came and went, note that. Then rate the worst intensity in plain language or on a 0-to-10 scale. Consistency matters more than using a particular scale.

Next, record symptoms. Common examples include throbbing or pressure-like pain, pain on one or both sides, nausea, vomiting, sensitivity to light, sensitivity to sound, neck discomfort, visual changes, dizziness, or difficulty concentrating. Only include symptoms you actually experienced. You do not need to make the entry sound medical.

Finally, write what you did for relief and whether it helped. Include prescription medicines, over-the-counter products, hydration, sleep, a dark room, ice, or other approaches. A short entry can be enough: “Headache 2 p.m.–8 p.m., 6/10, nausea/light sensitivity, took prescribed rescue medicine, partial relief.”

Track function, not just pain

Pain intensity does not tell the whole story. A moderate headache that prevents you from reading a screen, driving, caring for a child, or sleeping can be highly disruptive. Add a small note about function: “left work early,” “cancelled dinner,” “could do basic tasks,” or “needed to lie down.” This helps describe migraine’s real-life effect without exaggeration.

How to count headache days without overthinking it

A calendar day is usually the simplest unit. Mark any day with head pain as a headache day, even if the pain is mild. Then use another mark for days that felt like migraine based on your established diagnosis and symptoms. Do not try to self-diagnose from a checklist. If you are unsure, record what happened in everyday language and ask your treating clinician or research team how it should be understood.

Some attacks cross midnight or last more than one day. Record the symptoms on each calendar day they affect. If pain returns after temporary relief, note that rather than guessing whether it was a new attack. This is precisely why a diary is useful: it preserves the timeline for a later discussion.

A sample diary entry

Tuesday, October 15: Head pain started around 7 a.m. and eased by 3 p.m. Worst intensity 7/10. Throbbing pain with light sensitivity and nausea. Used usual prescribed acute medicine at 8 a.m.; improved some by noon. Missed morning meeting and rested in a dark room. Slept poorly the night before. No conclusion about a trigger.

This kind of entry is specific without trying to interpret every detail. It gives the research team context while leaving medical and study decisions to qualified professionals.

What to bring to an ANR research conversation

Bring the diary, but do not stop there. A short preparation list can help you make good use of the visit or call. Consider bringing a current medication list, including doses if you know them, allergies, prior migraine treatments, and a list of questions. If you use a digital diary, screenshots or a printed monthly summary can be easier to review than scrolling through a phone.

Helpful questions include:

• Is the MINT-C study currently enrolling at this Phoenix location?
• What does the screening process include, and how long might it take?
• What are the study’s current inclusion and exclusion criteria?
• Will the protocol require a specific daily diary or electronic device?
• Which visits are in person, and which may be remote?
• What happens if symptoms change during the study?
• Can I continue my usual migraine care while being screened or enrolled?
• Who should I contact for study-related questions after I leave?

A screening conversation is not a promise of enrollment or benefit. It is a chance to learn about the study, ask questions, and decide whether you want to proceed with screening. You can take time to review consent materials and discuss them with people you trust.

What the MINT-C listing says—and what it does not say

ANR’s Current Studies page identifies MINT-C as a chronic migraine study sponsored by Merz Therapeutics. It describes a randomized, placebo-controlled design and refers visitors to the public study record. Those details help explain the purpose of the research, but the listing is not a personal recommendation and cannot tell any individual whether Xeomin is appropriate for them.

Randomized studies use a process that assigns participants to study groups. Placebo-controlled research includes comparison groups so investigators can evaluate safety and effects more reliably. The ANR page notes that qualified participants will receive Xeomin at some point during the study; the research team can explain the current protocol, assignment process, timing, potential risks, and alternatives in detail. The ClinicalTrials.gov record is another place to review publicly available study information.

Keep your regular care team involved

A research team focuses on the protocol. Your personal clinician focuses on your ongoing medical care. Before making changes to prescription medicines or stopping a treatment, speak with the clinician who manages your care. Do not change medicines based on a diary, blog post, or the hope of joining a study.

A diary can also be useful if research is not the right fit. It can help your regular clinician understand your symptoms and discuss options. Research participation is voluntary; choosing not to participate does not reduce the importance of ongoing migraine care.

When a headache needs urgent attention

Most headaches do not signal an emergency, but some symptoms need urgent evaluation. Call 911 or seek emergency care for a sudden, severe headache that reaches maximum intensity quickly; a new headache with weakness, numbness, trouble speaking, fainting, seizure, confusion, or vision loss; head pain after a significant injury; or a severe headache with fever and stiff neck. People who are pregnant, recently postpartum, immunocompromised, or taking blood thinners should seek prompt clinical advice for concerning new headache symptoms.

Do not wait for a research appointment if you have emergency warning signs. A study team cannot provide emergency care.

Frequently asked questions

Do I need a perfect 30-day diary to contact ANR?

No. A week or two of honest notes can still be helpful. The team will tell you what information they need and whether the current protocol has specific diary requirements.

Can a diary tell me whether I have chronic migraine?

No. It records experiences; it does not diagnose. Diagnosis and eligibility require appropriate clinical and research assessment.

What if I forget a day?

Leave it blank or write that you are unsure. Avoid inventing details later. Accuracy is more useful than a completed-looking calendar.

Will a diary guarantee that I can join the MINT-C study?

No. Enrollment depends on the current protocol and screening results. Research teams must follow specific eligibility criteria and safety procedures.

Where can I learn about other local research opportunities?

Visit ANR’s Current Studies page and Volunteer Today page. Availability and criteria can change, so the site and ANR staff are the best sources for current information.

Make the diary easier to use on difficult days

On a high-symptom day, a full entry may be unrealistic. Create a shorthand key before you need it: H for headache, M for migraine symptoms, R for rescue medicine, and F for a meaningful change in function. You can add details later only if you feel well enough. A consistent brief record is more valuable than a detailed diary abandoned after three days.

Keep the diary separate from assumptions. For example, “slept five hours” is useful data; “lack of sleep caused this migraine” is a conclusion that may or may not be true. The same approach applies to foods, weather, stress, and medication timing. Recording facts leaves room for your clinician and the research team to ask better questions.

Privacy, consent, and your choices

Research participation is voluntary. Before any study procedures, prospective participants should have a chance to review informed-consent materials, ask questions, and decide whether to proceed. Ask how diary information will be used, what information may be collected, and who you can contact if you have concerns. You can also ask whether you may take the consent form home to review. A research discussion should support an informed choice, not pressure you to enroll.

Take the next informed step

If chronic migraine is affecting your month, start a simple diary today and use it to guide a thoughtful conversation. Arizona adults who want to ask about the MINT-C study or other research opportunities can review ANR’s Current Studies page or contact ANR through Volunteer Today. The team can explain current local availability, screening, consent, and next steps without promising enrollment or an outcome.

Educational disclaimer: This article is for general education only and is not medical advice, a diagnosis, treatment recommendation, or a guarantee of research eligibility, enrollment, safety, or benefit. For urgent symptoms, call 911 or seek emergency care.