A search presented today at the annual congress of the 8th European Headache Federation (EHF) demonstrated that seasoned migraine sufferers treat preventively near TOPAMAX(R) (topiramate) worldly perceptive a reduced amount of migraine-related days per month than those treated with placebo.
The TOP-CHROME (TOPiramate encircled via CHROnic MigrainE) study be a 16-week, multicenter double-blind, randomised, placebo-controlled study involving 59 patients aged 18 to 65 who experienced chronic migraines, which be defined by means of a inclusive of 15 or more migraine days all 4 weeks.
The earliest endpoint of this torment was the rearrangement in figure of migraine days in patients treated with TOPAMAX compare to those nearby placebo, and the grades show a to a immense extent greater drop in migraine days in TOPAMAX patients. Patients who experienced chronic migraines and who be treated with TOPAMAX experienced a having an earth-shattering effect decline in the aim secret language of migraine days of 3.5 days per month, while patients on placebo experienced no sinewy change (0.2 daytime stretch per month).
In amalgamation, a force of patients who overused acute medications1 also experienced a significant and clinically applicable reduction in migraine days. Moreover, significantly fewer patients treated with TOPAMAX have overused acute medication at the loop up of the trial compared to those on placebo. Improvements in level of adventure were also observed.
In the TOP-CHROME study, nearby was a 4-week baseline scrutiny bout lacking trial medication follow by debut of rehabilitation with placebo or topiramate at a day by day dose of 25mg. The dose was next increased in weekly 25 mg increment to a target dose of 100 mg/day (with a 200 mg/day maximum dose). Final dose range in section to 50 mg and 200 mg per day according to patients’ relevant desires, with a mode dose of 100 mg. Subjects were permitted to hang on to on taking surviving migraine blocking dream therapy all for the duration of the curriculum of the study, with the freedom of anticonvulsant medication. The encoded primary efficacy endpoint of the trial was change in the number of migraine days during the end 4 weeks of treatment in the double-blind step, compared to the number of migraine days during the 4 weeks baseline observation period.
During the last 4 weeks of treatment with topiramate, the number of migraine days was reduced from a baseline of 15.5 days to lately 12 days (-3.5), compared to patients on placebo who experienced a 0.2 day increase in their migraine frequency. Patients’ rating of the impact of migraine on their quality of life, as assess by MIDAS2 questionnaire, was also significantly top-quality for TOPAMAX than placebo. Improvements in quality of life were found with the MSQ3 and HIT-64 questionnaires, but there were no statistically significant precariousness between the treatment group.
Prof H-C Diener, from the University of Essen (Germany) and one of the two principal investigators of the CHROME study, comment, “This trial enhance our charge of the role that topiramate may skip in reducing the frequency of migraine attack in chronic migraine sufferers and medication overuse patients. These situation may be an important thinking for physician and patients who are considering the utilization of TOPAMAX as preventive therapy to relief alleviate the toll that constant migraine take on people’s live.” During the treatment period, a significantly greater number of patients (up to 29%) come back with to treatment with TOPAMAX, compared to competent to 4% of migraine sufferers who responded to placebo.
Patients were considered responders if they tittle-tattle a reduction in their migraine days of at lowest possible 50%. Satisfaction with the value of treatment among patients in the study was also significantly better for TOPAMAX compared to placebo. Moreover, a significant and clinically relevant reduction in migraine days was also reported in a group of patients who overused acute medication. Significantly fewer patients treated with TOPAMAX had overused acute medication at the end of the trial compared to patients on placebo (topiramate therapy: baseline 63% of patients, end of trial 28%; placebo baseline: 67% of patients, end of trial 59%).
During the course of the study, TOPAMAX was shown to be across the world well-tolerated. There was a higher rate of duplication of adverse trial in the TOPAMAX group (75%) compared to patients on placebo (37%). The utmost readily reported line-up effects were paraesthesia (59%), vomiting (16%), vertigo (13%) and nausea (9%). There was no statistically significant difference in enjoyment reported in the tolerability of the treatment. 75% of patients treated with TOPAMAX completed the study, compared to 52% of subject on placebo.
In Europe, TOPAMAX be fair by Janssen-Cilag, a subsidiary of Johnson & Johnson, the world’s most total businesswoman of health-care products and similar services. More convention in the order of the camaraderie can be found at About TOPAMAX TOPAMAX is qualified for migraine prevention in adults one and only and is not approved for the acute treatment of migraines.
Important sanctuary information: Serious risk associated with TOPAMAX swathe degrade bicarbonate level in the blood subsequent in an increase in the tang of the blood (metabolic acidosis), and hyperventilation (rapid, reflective breathing) or fatigue. More stringent symptom of metabolic acidosis could include malformed heartbeat or changes in the even of alertness.
Chronic, unprocessed metabolic acidosis may increase the stake for kidney stones or prepare bug.
Other severe risks include increased eye trauma (glaucoma), decrease sweat, increased unit heat, kidney stones, sleepiness, dizziness, anarchy, and impediment rapt.
More undivided side effects are tingling in military hardware and legs, mar of appetite, nausea, diarrhea, swallow change and cargo loss.
Please see satisfied prescribe information.
Regulatory cachet of medications and indication as considered in these materials can change from bucolic to country. For full prescribing and safety information oblige refer to the Topamax labeling in your country.
1 - Acute Medication Overuse as Defined in TOP-CHROME Trial: Triptan intake 10 days/4 weeks; opioid intake 10 days/4 weeks; analgesic intake 15 days/4 weeks; or any jumble of these drugs 10 days/4 weeks.
2 - Migraine Disability Assessment Questionnaire (MIDAS) 3 - Migraine Specific Questinnaire (MSQ) 4 - Headache Impact Test (HIT-6) ABOUT EHF Since its keystone in 1992, the EHF have sought to modernize the life of European headache sufferers by promote take into custody sight of of headache disorder and their impact. The EHF 8th Headache Congress is an multinational occasion which aims to foster irrefutable communication and debate centered on all aspect of the research, lessons and treatment of headache. Topics singled out for exceptional focus at this year’s congress include clinical go through with trial acute and preventive treatments for headache.
References 1. Diener H-C, Goadsby PJ, Bussone G et al. Assessing the efficacy and safety of topiramate for the prevention of chronic migraine. European Headache Federation (EHF) 8th Headache Congress, Valencia, Spain, April 26-29, 2006. Poster 39.
2. Lipton RB, Stewart WF, Scher AI. Epidemiology and economic impact of migraine. Curr Med Res Opin 2001; 17(Suppl 1): S4-S12.ff.
3. Headache Class Subcommittee of the International Headache Society. The International Classification of Headache Disorders 2nd Edition. Cephalalgia 2004; 24: Suppl 1:1-151.
4. National Headache Foundation. Advances in migraine prophylaxis - contemporary convey of the art and proposed therapies. Monograph 2001. Available at /professional/educationresources/PDF/botoxcme.pdf.
5. Headache Classification Committee of the International Headache Society. Classification and diagnostic benchmark for headache disorders, cranial neuralgias, and facial anguish. Cephalalgia.
1988;8(suppl 7): 1-96.
6. Lipton RB et al. Migraine Prevention Patterns in a Community Sample: Results from the American Migraine Prevalence and Prevention (AMPP) Study. Abstract presented at AHS Congress, Philadelphia, 23-26 June 2005: abstract insinuation F38.
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