Why Migraine Treatment Sometimes Fails
Triptan Therapy Effective Only If Given Early During the Migraine Attack
Nov. 7, 2003 -- The success or failure of migraine treatment with the most commonly prescribed migraine medications may depend on timing.
New research shows that in order for triptan-based drug therapy to work effectively in relieving migraine pain, the drugs must be taken early during the migraine attack before the development of exaggerated skin sensitivity, a symptom often seen in migraine sufferers. If the drugs are taken after this sensitivity develops, the triptans may be rendered powerless against the migraine pain.
Researchers say the findings may help explain why some migraine sufferers simply can't seem to find relief from treatment with the drugs in this class, such as Imitrex and Zomig. By educating doctors to look for signs of skin sensitivity in migraine patients, they can instruct patients to take the drugs early and may be able to improve the effectiveness of these drugs.
"Doctors can then instruct those patients to take triptans early in the attack, rather than delay treatment until the headache has reached a moderate-to-severe level," says researcher Rami Burstein, PhD, of Beth Israel Medical Center and Harvard Medical School, in a news release.
Timing Critical in Successful Migraine Treatment
Researchers say triptans have become extremely popular in migraine treatment since they were introduced a decade ago. But many doctors do not understand why the drugs work well in some patients and not at all in others and why their effectiveness varies in individual patients from one migraine attack to the next.
Two studies published in the Nov. 7 advance online edition of the Annals of Neurology suggest that the success of migraine treatment with triptans is related to the skin sensitivity symptom commonly found in migraine sufferers. This symptom, known as cutaneous allodynia, occurs in about three-fourths of migraine suffers and frequently affects the skin of the face and neck, making even mundane activities like brushing one's hair or shaving extremely painful.
In one study, researchers compared the outcome of triptan therapy in resolving 34 migraine attacks associated with this symptom at the time of treatment with the outcome in 37 attacks that were free of this symptom at the time of treatment.