PMID- 17022862 OWN - NLM STAT- MEDLINE DCOM- 20061024 LR - 20131121 IS - 1473-4877 (Electronic) IS - 0300-7995 (Linking) VI - 22 IP - 10 DP - 2006 Oct TI - Repetitive dihydroergotamine nasal spray for treatment of refractory headaches: an open-label pilot study. PG - 2031-6 AB - OBJECTIVE: To evaluate the safety and efficacy of a repetitive intranasal (IN) dihydroergotamine (DHE) burst protocol for treatment of refractory headaches. RESEARCH DESIGN AND METHODS: Patients with refractory headaches were enrolled in a prospective, open-label, pilot study. Patients were instructed to self-administer IN DHE every 8 hours for 3 days; each IN DHE dose consisted of one 0.5-mg spray in each nostril that was repeated 15 minutes later, for a total of 2.0 mg DHE per dose. Follow-up visits were scheduled approximately 3 weeks later. MAIN OUTCOME MEASURES: Efficacy and safety measurements were collected during patient interviews. Primary efficacy measures were the change in headache frequency, duration, and severity (rated from 0 [none] to 5 [extremely severe]) between the initial and follow-up visits. Safety was assessed at the follow-up visits through the occurrence of adverse events (AEs). RESULTS: Twenty-six patients were enrolled in the study. Follow-up visits were completed by 24 patients whose mean headache frequency at study entry was 6.6 d/wk. The IN DHE burst protocol was associated with significant mean decreases in headache frequency (2.6 d/wk, p < 0.001), duration (5.8 hours, p = 0.03), and severity (1.2 units, p < 0.001) between study entry and the follow-up visit. One patient discontinued IN DHE use early because of an AE (nasal stuffiness); two additional patients each reported one AE (fatigue and increased headache) that was attributed to IN DHE. CONCLUSIONS: The results of this pilot study suggest that the IN DHE burst protocol may be an effective and safe treatment for refractory headaches; interpretation of these results is limited by the open-label, uncontrolled design and the small number of patients. The development of a double-blind, placebo-controlled study to further evaluate this treatment regimen is warranted. FAU - Weintraub, James AU - Weintraub J AD - Michigan Head-Pain & Neurological Institute, Ann Arbor, MI 48104, USA. drtraub@aol.com LA - eng PT - Clinical Trial PT - Journal Article PL - England TA - Curr Med Res Opin JT - Current medical research and opinion JID - 0351014 RN - 0 (Vasoconstrictor Agents) RN - 436O5HM03C (Dihydroergotamine) SB - IM MH - Administration, Intranasal MH - Adult MH - Dihydroergotamine/*administration & dosage/therapeutic use MH - Female MH - Headache Disorders, Primary/*drug therapy MH - Humans MH - Male MH - Middle Aged MH - Pilot Projects MH - Prospective Studies MH - Vasoconstrictor Agents/*administration & dosage/therapeutic use EDAT- 2006/10/07 09:00 MHDA- 2006/10/25 09:00 CRDT- 2006/10/07 09:00 PHST- 2006/10/07 09:00 [pubmed] PHST- 2006/10/25 09:00 [medline] PHST- 2006/10/07 09:00 [entrez] AID - 10.1185/030079906X148247 [doi] PST - ppublish SO - Curr Med Res Opin. 2006 Oct;22(10):2031-6. doi: 10.1185/030079906X148247.