An observational study in Cluster Headache, sponsored by The University of Texas Health Science Center, Houston. Completed at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-02-18.
Sponsored by The University of Texas Health Science Center, Houston · Observational
The objective of this study is to survey patients with cluster headache about treatment effectiveness and their views on treatments. Participants will complete one brief questionnaire online.
123 studies on the registry are indexed under Cluster Headache; 26 are open to participants now.
This study's enrollment of 2,487 is above the median of 68 across 32 observational studies indexed under Cluster Headache.
Browse Cluster Headache studies →The University of Texas Health Science Center, Houston is the lead sponsor of 897 studies on the registry; 214 are open to participants now.
Of its 173 completed or terminated interventional studies of FDA-regulated products, 142 (82%) have results posted.
Counted across the registry records on this site, refreshed daily.
The population is patients with episodic or chronic cluster headache that has been diagnosed by a health care professional. The cluster headache diagnosis will be verified via the survey using a validated cluster headache diagnostic screen.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Patients with a diagnosis of episodic or chronic cluster headache, as diagnosed by a health care professional and to be confirmed by questions on the study survey.
Effectiveness of cluster headache treatment as assessed by a survey
Time frame: at the time of survey completion, expected to be 6-12 months
Opinions on new cluster headache treatment as assessed by a survey
Time frame: at the time of survey completion, expected to be 6-12 months
Plan to share: No
Ran from Jun 2023 to primary completion in Jun 2025, 23 months.
How these figures are worked out, and which studies are left out of them.
This study is completed, as verified in Feb 2026. You cannot join it, but the record below documents what was studied.
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The University of Texas Health Science Center, Houston →