11-point pain scale
OtherSubjects will be asked to rate their headache pain using an 11-point scale, i.e. on an integer scale from 0 to 10 inclusive, with 0 indicating no pain and 10 indicating the worst pain imaginable.
NCT Number: NCT04341298
The purpose of this research is to assess how well the Avulux® migraine lenses work in reducing the impact of migraine headaches as measured by improvement in an 11-point pain scale after two and four hours of device application, when compared to a control device.
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Notify Me18 year and older
All sexes
Interventional
Not applicable
Clinical Research Institute, Inc., Minneapolis, Minnesota, United States
Avulux® is intended to reduce the severity of headache pain in adult patients diagnosed with episodic migraine headaches. In this study, the investigative Avulux® device shall consist of a pair of optical filters in the form of spectacle lenses, provided in a standard spectacle frame; the lenses contain a dye that effectively blocks light at specified wavelength ranges while minimizing distortion of the visible spectrum. The optical filters block a portion of the optical spectrum that is suspected to stimulate photophobic responses that trigger some, and exacerbate most, migraines.
The control/sham device for this study shall be a pair of plastic lenses provided in a standard spectacle frame, which will have negligible light-blocking properties at the optical wavelengths which are blocked by the Avulux® device.
Healthy volunteers accepted: Yes
Only the study team can determine whether someone qualifies for participation.
Inclusion criteria
Exclusion criteria
Subjects will be asked to rate their headache pain using an 11-point scale, i.e. on an integer scale from 0 to 10 inclusive, with 0 indicating no pain and 10 indicating the worst pain imaginable.
Subjects will be asked to record specific information for the first (and all subsequent) severe or very severe migraine headaches that they experience while enrolled in the study.
Avulux® device
Sham Avulux®
Time frame: from baseline to 2 hours after device application
Change in migraine pain from baseline to 2 hours after device application, based on first severe or very severe migraine headache experienced by a study subject (i.e. baseline pain score of 6 or higher). Pain scale is an 11-point scale, with integer values from 0 (no pain) to 10 (worst pain imaginable) inclusive.
Time frame: from baseline to four hours after device application
Change in migraine pain from baseline to 4 hours after device application, based on first severe or very severe migraine headache experienced by a study subject (i.e. baseline pain score of 6 or higher). Pain scale is an 11-point scale, with integer values from 0 (no pain) to 10 (worst pain imaginable) inclusive.
Time frame: from baseline to 2 hours after device application
Number of subjects who show quantifiable improvement in overall migraine impact, as measured by a change in migraine pain from severe (i.e. baseline pain score of 6 or higher) to mild/no pain (defined as a pain score of 3 or less) after an elapsed time of 2 hours following application of the device, based on first severe or very severe migraine headache experienced by a study subject. Pain scale is an 11-point scale, with integer values from 0 (no pain) to 10 (worst pain imaginable) inclusive.
Time frame: baseline to 8 hours after device application
Number of subjects who require abortive headache medication (e.g. analgesic or triptan) to control their first severe or very severe migraine headache (i.e. baseline pain score of 6 or higher) within 8 hours following application of the device. Pain scale is an 11-point scale, with integer values from 0 (no pain) to 10 (worst pain imaginable) inclusive.
Time frame: 2 hours after device application
Number of subjects suffering from light sensitivity after elapsed time of 2 hours following application of the device, based on first severe or very severe migraine headache experienced by a study subject (i.e. baseline pain score of 6 or higher). Pain scale is an 11-point scale, with integer values from 0 (no pain) to 10 (worst pain imaginable) inclusive.
Time frame: 4 hours after device application
Number of subjects suffering from light sensitivity after elapsed time of 4 hours following application of the device, based on first severe or very severe migraine headache experienced by a study subject (i.e. baseline pain score of 6 or higher). Pain scale is an 11-point scale, with integer values from 0 (no pain) to 10 (worst pain imaginable) inclusive.
Avulux, Inc.
Industry
Clinical Evaluation of Avulux® Lenses as an Aid in Reducing the Impact of Migraine Headaches
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