Investigation of Efficacy and Safety of Botulinum Toxin A (Botox-Allergan Inc) in Migraine Headaches
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|ClinicalTrials.gov Identifier: NCT00660192|
Recruitment Status : Completed
First Posted : April 17, 2008
Results First Posted : March 14, 2016
Last Update Posted : March 14, 2016
|Condition or disease||Intervention/treatment||Phase|
|Refractory Migraine||Drug: Botox Other: Placebo||Phase 2 Phase 3|
|Study Type :||Interventional (Clinical Trial)|
|Actual Enrollment :||25 participants|
|Intervention Model:||Parallel Assignment|
|Masking:||Double (Participant, Investigator)|
|Official Title:||Investigation of Efficacy and Safety of Botulinum Toxin A (Botox-Allergan Inc) in Migraine Headaches|
|Study Start Date :||January 2008|
|Actual Primary Completion Date :||July 2012|
|Actual Study Completion Date :||July 2015|
Placebo Comparator: Placebo
Subjects are randomized to receive Placebo which is inactive saline (sterile salt water solution). The Subjects are injected with a comparable amount of placebo solution (2cc-3cc) as received by those randomized to receive active study drug. The randomization will be done in a double blinded manner where the investigator nor the subject knows which substance (Placebo vs. Botox) is being injected.
subjects randomized to receive Placebo will have a series of injections of saline solution totalling 2cc's to 3cc's injected into the scalp in a halo pattern; and into affected neck muscles.
Other Name: Saline
Active Comparator: Botox
Subjects are randomized to receive Active study drug Botox (onobotulinumtoxinA). The Botox is prepare by diluting 100units of toxin /1cc Saline. The Subjects are injected with 200-300units of units of Botox which is 2cc-3cc of solution. The randomization will be done in a double blinded manner where the investigator nor the subject knows which substance (Placebo vs. Botox) is being injected.
subjects randomized to receive Botox with have a series of injections of onobotulinumtoxinA totalling 200 to 300 units. Botox is prepared b adding 1cc of preservative free saline in 100 unit vial. Final dose is determined by bod and neck size.
Other Name: onobotulinumtoxinA
- Mean Number of Days of Decrease in Pain Level Using VAS [ Time Frame: 4 weeks ]Number of days of decreased pain (2 grades or more) on Visual Analog scale. VAS ranges from 0-10, with 0 being no pain, and 10 being worst pain.
- Number of Participants Satisfied With Treatment [ Time Frame: 4 weeks ]
Number of Patients whose Patient global impression of change (PGIC) moderately or much improved- The PGIC is a 7 point scale that requires the clinician to assess how much the patient's pain has improved or worsened relative to a baseline state at the beginning of the intervention. and rated as:
No change (or condition has gotten worse) (1) Almost the same, hardly any change at all (2) A little better, but no noticeable change (3) Somewhat better, but the change has not made any real difference (4) Moderately better, and a slight but noticeable change (5) Better and a definite improvement that has made a real and worthwhile difference (6) A great deal better and a considerable improvement that has made all the difference (7)improved
This outcome is number of patients who chose a 6 or above on the PGIC 6 weeks after treatment.
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00660192
|United States, Connecticut|
|Yale Physician's Building, 800 Howard Ave, lower level,|
|New Haven, Connecticut, United States, 06510|
|Principal Investigator:||Bahman Jabbari, M.D.||Yale- 203-737-2464|