NCT00487578 - Clinical Trial References

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Citation(s)

Baandrup L, Jensen R
Chronic post-traumatic headache--a clinical analysis in relation to the International Headache Classification 2nd Edition. Cephalalgia. 2005 Feb;25(2):132-8. Erratum in: Cephalalgia. 2005 Mar;25(3):240.
Headache Classification Subcommittee of the International Headache Society
The International Classification of Headache Disorders: 2nd edition. Cephalalgia. 2004;24 Suppl 1:9-160.

Evaluation of the Efficacy of Naratriptan for the Treatment and Prevention of Post Traumatic Headache Associated With Cognitive Dysfunction

Clinical trial NCT00487578 - References