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Vitamin D + Multivitamin for Cluster Headaches
Study Summary
This trial is investigating whether high doses of Vitamin D3, plus a multivitamin, can help prevent cluster headaches. People in the US can participate by going to a participating lab for blood work (available in most of the US). The study includes a screening, a baseline period, and an experimental period where participants receive either high doses of Vitamin D3 or a placebo. There is also an open-label period where all participants receive the high doses of Vitamin D3. The primary outcome is the change in frequency of cluster headaches from the baseline to the experimental period.
Eligibility Criteria
Inclusion Criteria
You may be eligible if you check “Yes” for the criteria belowTimeline
Treatment Details
Study Objectives
Outcome measures can provide a clearer picture of what you can expect from a treatment.Trial Design
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Who is running the clinical trial?
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- I am currently taking blood thinners.You probably won't need to change your cluster headache prevention treatment for the next 6 weeks.I have taken more than 4,000 IU of Vitamin D3 daily in the last 60 days.I am taking Vitamin D or multivitamins and cannot stop before the study starts.You have another health condition that makes it difficult to diagnose cluster headaches accurately.I am currently taking medication that affects vitamin D metabolism.I have had more than one deep vein clot or lung clot.You have had recent lab tests that showed high levels of vitamin D, calcium, phosphate, parathyroid hormone, or creatinine in the last 2 years.I have been diagnosed with chronic cluster headaches, experiencing about one attack daily.I do not have liver failure or a blood clotting disorder.I have been diagnosed with episodic cluster headaches with daily attacks for 6 weeks or more.
- Group 1: vitamin D+multivitamin
- Group 2: placebo+multivitamin
- All Individual Drugs Already Approved - Therapies where all constituent drugs have already been approved are likely to have better-understood side effect profiles.
- Pivotal Trial - The final step before approval, pivotal trials feature drugs that have already shown basic safety & efficacy.
- Screening: It may take up to 3 Weeks to process to see if you qualify in this trial.
- Treatment: The duration you will receive the treatment varies.
- Follow Ups: You may be asked to continue sharing information regarding the trial for 6 Months after you stop receiving the treatment.
Frequently Asked Questions
Does this trial have an age limit?
"The age limit for this study is 18-70."
What is the total amount of people testing this medication?
"That is accurate. The clinicaltrials.gov website has information revealing that this trial is looking for subjects right now. This specific study was initially posted on September 15th, 2021 and was updated on October 31st, 2022. There is a need for 220 individuals total from 1 location."
Has the FDA released any statements regarding Vitamin D's safety or efficacy?
"There is some evidence for efficacy and Vitamin d has undergone multiple rounds of testing, so it receives a score of 3 for safety."
Are new participants still being taken in for this experiment?
"This trial, as indicated by its listing on clinicaltrials.gov, is actively recruiting patients. The trial was first posted on September 15th, 2021 and was last updated on October 31st, 2022."
Do I fit the bill to join this experiment?
"220 individuals aged 18 to 70 who suffer from cluster headaches are being recruited for this clinical trial. Key requirements for applicants include: a diagnosis of episodic or chronic cluster headache according to the International Classification of Headache Disorders 3rd edition, attacks that last 6 weeks or more (in the case of episodic cluster headaches), and having at least one attack per day. Additionally, participants must not be planning on changing their preventive treatments for cluster headaches in the next six weeks."
Could you direct me to other research on Vitamin D's benefits?
"Currently, there are 36 clinical trials underway that focus on research Vitamin d. Out of these active studies, 11 have reached Phase 3. The majority of the trial sites for Vitamin D are located in Valdemoro, Madrid; however, there are 91 different locations conducting similar research."
Who else is applying?
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