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Duration of Benefit for OnabotulinumtoxinA in Treatment of Chronic Migraine

Exploratory Study of the Natural History, Clinical Outcomes, and Neuronal Endplate Changes in Subjects Reporting Short Duration vs. Long Duration of Benefit for OnabotulinumtoxinA in Treatment of Chronic Migraine

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02037425
Enrollment
44
Registered
2014-01-16
Start date
2014-04-30
Completion date
2015-09-30
Last updated
2016-08-11

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Chronic Migraine

Keywords

Chronic Migraine, onabotulinumtoxinA, Headache, Migraine, Neuronal regrowth, Botox

Brief summary

To obtain a patient specific understanding of response to treatment with onabotulinumtoxinA by collecting and correlating pre and post treatment subject specific history, clinical outcomes, and histological changes.

Detailed description

Recognizing a commitment to evidence-based science as the pathway to optimize clinical outcomes for patients with chronic migraine (CM) we believe this investigator initiated study (IIS) will: 1. Help clinicians recognize the importance of scheduling patients with CM at intervals not exceeding 12 weeks. 2. Provide biopsy evidence supporting sensory mechanisms involved in the mechanism of action (MOA) of onabotulinumtoxinA (BTX). This does not exclude potential valuable contributions of denervation of motor neurons, but may support a more balanced and understandable mechanism for BTX in treating CM. 3. Provide clinicians important educational information for patients to better manage expectations of using BTX in managing CM and answering critical questions such as: 1. How long does it take for BTX to begin providing a clinical benefit? 2. What is the expected duration of this benefit? * Failure to understand unmet expectations either real or otherwise results in defining BTX treatment as a failure by patients and/or clinicians. 4. Provide validation for patients' reports of shorter duration of action of BTX so patients will not be misinterpreted as non-responders to BTX prematurely. 5. Ascertain if subjects initially reporting short duration of BTX response continue to experience this similar pattern of effect with repeated injection cycles. 6. Provide the first detailed longitudinal assessment of BTX response. 7. Correlate the onset and duration of benefit for subjects receiving BTX. 8. Observe factors predictive of duration of BTX response. This study proposes to accomplish these goals through an exploratory comparison of the clinical efficacy and natural history of BTX measured at weekly time intervals. Subjects reporting short (\<10 weeks) duration of benefit and subjects reporting long (\>10 weeks) duration of clinical benefit will provide the primary comparison. Histological examinations (in a subset of subjects) of neuronal changes associated with regeneration of terminal neuronal endplates will be used to support these clinical observations. This study will follow subjects through 3 injection cycles or 36 weeks. Biopsies will be performed on consenting subjects prior to their first and second injection cycles. Group Assignment At Visit 3, subjects will be assigned to one of three groups (Groups A, B, C) based on their answers to the following questions: 1. Since your last BTX treatment, do you think there has been improvement in your chronic migraine? If the answer to Q1 is yes, subject will answer Q2 and Q3. If the answer is no, subject is assigned to Group C and no further answers are required: 2. How many days did it take for you to first notice benefit from BTX injections? 3. How long did you feel you received benefit from BTX (number of weeks)? Subjects will be assigned into 3 groups: 1. Group A are subjects reporting 10 or less weeks of benefit from BTX; 2. Group B are subjects reporting \>10 weeks of benefit from BTX; 3. Group C are subjects reporting no or minimal (\< 30%) benefit from BTX. Consistency of subjects' perception of BTX benefit at 12 weeks will be compared to responses at 24 and 36 weeks, though Group assignment will remain as defined at 12 weeks. This exploratory study will be conducted at the Headache Care Center in Springfield, MO. Thirty-six subjects, 18 years and older with a history of chronic migraine will be enrolled. The study will consist of 5 visits for all subjects. At Visit 1 (day 1 of baseline) the following study procedures will be performed: * Informed Consent obtained * Migraine, medical and medication history obtained * Physical and neurological exam performed * Urine pregnancy test performed if applicable * Vital signs collected At Visit 2 (day 29 +/- 3 days) the following study procedures will be performed: * Update medical and medication history * Urine pregnancy test performed if applicable * Vital signs collected * Review baseline diary * Complete Migraine Disability Assessment Scale (MIDAS) * Complete Social Readjustment Rating Scale (SRRS) * Complete Beck Depression Inventory II (BDI-II) * Complete State-Trait Anxiety Inventory (STAI) * Complete Sleep Quality Questionnaire * Punch biopsy for neuronal regrowth (subset of subjects) * onabotulinumtoxinA injections At Visit 3 (day 113 +/- 3 days) the following study procedures will be performed: * Update medical and medication history * Urine pregnancy test performed if applicable * Vital signs collected * Complete Subject Global Impression of Change (SGIC) * Complete Physician Global Impression of Change (PGIC) * Complete Migraine Disability Assessment Scale (MIDAS) * Complete Social Readjustment Rating Scale (SRRS) * Complete Beck Depression Inventory II (BDI-II) * Complete State-Trait Anxiety Inventory (STAI) * Complete Sleep Quality Questionnaire * Complete duration of response to onabotulinumtoxinA questions * Punch biopsy for neuronal regrowth (subset of subjects) * onabotulinumtoxinA injections At Visit 4 (day 197 +/- 3 days) the following study procedures will be performed: * Update medical and medication history * Urine pregnancy test performed if applicable * Vital signs collected * Complete Subject Global Impression of Change (SGIC) * Complete Physician Global Impression of Change (PGIC) * Complete Migraine Disability Assessment Scale (MIDAS) * Complete Social Readjustment Rating Scale (SRRS) * Complete Beck Depression Inventory II (BDI-II) * Complete State-Trait Anxiety Inventory (STAI) * Complete Sleep Quality Questionnaire * Complete duration of response to onabotulinumtoxinA questions * onabotulinumtoxinA injections At Visit 5 (day 281 +/- 3 days) the following study procedures will be performed: * Update medical and medication history * Urine pregnancy test performed if applicable * Vital signs collected * Complete Subject Global Impression of Change (SGIC) * Complete Physician Global Impression of Change (PGIC) * Complete Migraine Disability Assessment Scale (MIDAS) * Complete Social Readjustment Rating Scale (SRRS) * Complete Beck Depression Inventory II (BDI-II) * Complete State-Trait Anxiety Inventory (STAI) * Complete Sleep Quality Questionnaire * Complete duration of response to onabotulinumtoxinA questions

Interventions

DRUGonabotulinumtoxinA

BOTOX® (Formulation Number 9060X) contains 200 International Units (IU) of Clostridium botulinum Toxin Type A, reconstituted with 4 cc of normal saline providing 5 units per 0.1 cc. At visit 2, subjects will receive their first treatment at Day 29 (+/-3 days). All subjects will receive 155 U Botulinum Toxin Type A Purified Neurotoxin Complex administered at 31 fixed-site, fixed-dose injections across seven (7) specific head/neck muscle areas. Injections will be repeated at day 113 (+/- 3 days) and at day 197 (+/- 3 days).

Sponsors

Allergan
CollaboratorINDUSTRY
Cady, Roger, M.D.
Lead SponsorINDIV

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* male or female 18 years or older. * able to read, understand, and sign the informed consent. * a negative urine pregnancy test at visit 1, if female, and of childbearing potential. Note: If female of childbearing potential, subject must agree to maintain true abstinence or use one of the listed methods of birth control for the duration of the study: hormonal contraceptive, intrauterine device (IUD), condoms, diaphragm, and/or have a male partner who has undergone a successful vasectomy. The use of barrier contraceptive (condom or diaphragm) should always be supplemented with the use of a spermicide. Note: To be considered not of childbearing potential, subject must be 6 weeks post-surgical bilateral oophorectomy, hysterectomy, bilateral tubal ligation, postmenopausal for at least one year. * at least a one year history of migraine * history of chronic migraine (with or without aura) according to the criteria of the International Classification of Headache Disorders (ICHD)-3 for at least 3 months prior to enrollment (Appendix I) * able to differentiate migraine headache from any other headache they may experience (e.g., cluster headache) * onset of migraine before age 50 * willing to provide responses to questionnaires and complete the online diary. * if taking migraine preventive(s), be on a stable dose of the preventive medication for at least 30 days prior to screening * concomitant medication dosages approved by the investigator * email and internet access for completion of online diary

Exclusion criteria

* previously used onabotulinumtoxinA as a migraine preventative or has used onabotulinumtoxinA for any other reason during the prior year * female who is pregnant, planning to become pregnant during the study period, breast feeding, or is of childbearing potential and not practicing a reliable form of birth control * headache disorders outside ICHD-3 defined chronic migraine that cannot be easily distinguished from CM (Appendix I) * evidence of underlying pathology contributing to their headaches * any medical condition that may increase their risk with exposure to BTX including diagnosed myasthenia gravis, Eaton-Lambert syndrome, amyotrophic lateral sclerosis, or any other significant disease that might interfere with neuromuscular function * profound atrophy or weakness of muscles in the target areas of injection * skin conditions or infections at any of the injection sites * allergy or sensitivities to any component of the test medication * in the opinion of the investigator, has an active major psychiatric disorder including substance abuse and/or substance dependence within the last 12 months as determined by the investigator. * Medication Overuse Headache as defined by ICHD-3 criteria for opioid or butalbital containing products (Appendix II) * planning or requiring surgery during the study * a history of poor compliance with medical treatment * currently participating in an investigational drug study or has participated in an investigational drug study within the previous 30 days of the screening visit

Design outcomes

Primary

MeasureTime frameDescription
Duration of onabotulinumtoxinA Over 3 Injection Cycles in Groups A, B, and CFrom day 29 (first day of injection cycle 1) to day 281 (84th day of injection cycle 3) plus or minus 12 daysCompare the duration of onabotulinumtoxinA response through the 3 injection cycles of the study for Groups A, B, and C as measured by headache days during each period (Baseline (28 days), Treatment Period 1(84 days), Treatment Period 2(84 days), and Treatment Period 3(84 days). Duration of response is defined as a 30% reduction in the number of headache days compared to baseline.
Subject Global Impression of ChangeWeeks 12, 24, and 36 Post RandomizationChanges in the Subject's Global Impression of Change (SGIC) measured at weeks 12, 24, and 36 for Groups A, B, and C. Subject global impression of change was measured on a 7 point scale with 0 being Very Much Worse and 7 Very Much Improved.

Secondary

MeasureTime frameDescription
Migraine Disability Assessment Scale (MIDAS)Baseline, Week 12, Week 24, and Week 36 Post RandomizationComparison between Group A, B, and C for MIDAS total scores (effect migraine headaches have on subjects daily function) measured at baseline and weeks 12, 24, and 36. Total score of disability ranges: * 0 to 5, MIDAS Grade I, Little or no disability * 6 to 10, MIDAS Grade II, Mild disability * 11 to 20, MIDAS Grade III, Moderate disability * 21+, MIDAS Grade IV, Severe disability Score ranges from 0-450. No subscales are present.
Social Readjustment Rating Scale (SRRS)Baseline, Week 12, Week 24, and Week 36 Post RandomizationComparison between Group A, B, and C for SRRS scores (impact of common stressors) measured at baseline and weeks 12, 24, and 36. Scores can range from 0 to an undetermined amount, as subjects are allowed to rate unlisted events according to their own sense of stress. A total lower than 150 suggests a low level of stress and a low probability of developing a stress-related disorder. Scores greater than 150 suggest higher levels of stress and higher probabilities of developing stress-related disorders.
Physician Global Impression of Change (PGIC)Week 12, Week 24, and Week 36 Post RandomizationComparison between Group A, B, and C for PGIC scores measured at weeks 12, 24, and 36. the PGIC scale scores range from 0-7 with 0 being Very Much Worse and 7 being Very Much Improved. A higher score indicates a greater impression of change.
Beck Depression Inventory II (BDI-II)Baseline, Week 12, Week 24, and Week 36 Post RandomizationComparison between Group A, B, and C for BDI-II scores measured at baseline and weeks 12, 24, and 36. A total score of 0-10 = these ups and downs are considered normal, 11-16 = mild mood disturbance,17-20 = borderline clinical depression, 21-30 = moderate depression, 31-40 = severe depression, over 40 = extreme depression
Sleep Quality QuestionBaseline, Week 12, Week 24, and Week 36 Post RandomizationComparison between Group A, B, and C for sleep quality scores measured at baseline and weeks 12, 24, and 36 post-randomization. A single sleep quality question was asked indicating quality of sleep over the past four weeks. The scale ranged from 1-5, with 1 being very poor quality and 5 being very good quality of sleep.
Acute Medication UsageFrom day 1 (first day of baseline) to day 281 (84th day of injection cycle 3) plus or minus 12 daysComparison of acute medication usage between Groups A, B, and C during baseline, Treatment Period 1, 2, and 3.
Consistency of Response to onbotulinumtoxinA Over Three Injection CyclesWeeks 12, 24, and 36 Post RandomizationCompare the consistency of duration of onabotulinumtoxinA response by the group assignment at 12 weeks to assessments at 24, and 36 weeks evaluations as measured by the number of responders. A responder is defined as a 30% reduction from baseline in the number of headache days.
Duration of onabotulinumtoxinA Over 3 Injection CyclesWeeks 9, 10, 11, 12, 21, 22, 23, 24, 33, 34, 35, 36 Post RandomizationCompare duration of benefit of onabotulinumtoxinA response through 3 injection cycles as measured by headache days per week (including the last 4 weeks of every injection cycle). A percent of responders was calculated using a 30% reduction of the number of headache days compared to average number of headache per week during baseline.
State-Trait Anxiety Inventory (STAI)Baseline, Week 12, Week 24, and Week 36 Post RandomizationComparison between Group A, B, and C for STAI scores measured at baseline and weeks 12, 24, and 36. Scores range from 20-80, with 20 indicating lower levels of anxiety most generally, and 80 indicating higher levels of anxiety most generally.
Headache DaysFrom day 29 (first day of injection cycle 1) to day 281 (84th day of injection cycle 3) plus or minus 12 daysComparison of headache days per month over each injection cycle between Groups A, B, and C (Baseline (28 days), Treatment Period 1(84 days), Treatment Period 2(84 days), and Treatment Period 3(84 days). Subjects will remain in their assigned groups based on assessment at 12 weeks.

Other

MeasureTime frameDescription
Neuronal RegrowthBaseline & Week 12 Post RandomizationCompare neuronal regrowth in the skin biopsies with duration of benefit of onabotulinumtoxinA in Groups A, B, C from baseline to 12 weeks post randomization. Neuronal regrowth change was scored on a 0-3 point scale with 0 being no change from baseline in regrowth and 3 being significant change from baseline.

Countries

United States

Participant flow

Participants by arm

ArmCount
onabotulinumtoxinA
At visit 2, subjects will receive their first treatment at Day 29 (+/-3 days). All subjects will receive 155 U Botulinum Toxin Type A Purified Neurotoxin Complex administered at 31 fixed-site, fixed-dose injections across seven (7) specific head/neck muscle areas. Injections will be repeated at day 113 (+/- 3 days) and at day 197 (+/- 3 days). A total of 30 subjects were used in data analysis as 2 subjects did not complete any outcome measures once enrolled in the study.
32
Total32

Baseline characteristics

CharacteristiconabotulinumtoxinA
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
0 Participants
Age, Categorical
Between 18 and 65 years
32 Participants
Age, Continuous40.56 years
STANDARD_DEVIATION 9.22
Region of Enrollment
United States
32 participants
Sex: Female, Male
Female
31 Participants
Sex: Female, Male
Male
1 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
— / —
other
Total, other adverse events
23 / 44
serious
Total, serious adverse events
2 / 44

Outcome results

Primary

Duration of onabotulinumtoxinA Over 3 Injection Cycles in Groups A, B, and C

Compare the duration of onabotulinumtoxinA response through the 3 injection cycles of the study for Groups A, B, and C as measured by headache days during each period (Baseline (28 days), Treatment Period 1(84 days), Treatment Period 2(84 days), and Treatment Period 3(84 days). Duration of response is defined as a 30% reduction in the number of headache days compared to baseline.

Time frame: From day 29 (first day of injection cycle 1) to day 281 (84th day of injection cycle 3) plus or minus 12 days

ArmMeasureGroupValue (NUMBER)
Group ADuration of onabotulinumtoxinA Over 3 Injection Cycles in Groups A, B, and CTreatment Period 262 percentage of responders
Group ADuration of onabotulinumtoxinA Over 3 Injection Cycles in Groups A, B, and CTreatment Period 162 percentage of responders
Group ADuration of onabotulinumtoxinA Over 3 Injection Cycles in Groups A, B, and CTreatment Period 362 percentage of responders
Group BDuration of onabotulinumtoxinA Over 3 Injection Cycles in Groups A, B, and CTreatment Period 2100 percentage of responders
Group BDuration of onabotulinumtoxinA Over 3 Injection Cycles in Groups A, B, and CTreatment Period 167 percentage of responders
Group BDuration of onabotulinumtoxinA Over 3 Injection Cycles in Groups A, B, and CTreatment Period 3100 percentage of responders
Group CDuration of onabotulinumtoxinA Over 3 Injection Cycles in Groups A, B, and CTreatment Period 10 percentage of responders
Group CDuration of onabotulinumtoxinA Over 3 Injection Cycles in Groups A, B, and CTreatment Period 350 percentage of responders
Group CDuration of onabotulinumtoxinA Over 3 Injection Cycles in Groups A, B, and CTreatment Period 250 percentage of responders
Primary

Subject Global Impression of Change

Changes in the Subject's Global Impression of Change (SGIC) measured at weeks 12, 24, and 36 for Groups A, B, and C. Subject global impression of change was measured on a 7 point scale with 0 being Very Much Worse and 7 Very Much Improved.

Time frame: Weeks 12, 24, and 36 Post Randomization

Population: Subjects included in this outcome measure analysis include those completing treatment period 1 injection cycle and returning at visit 3.

ArmMeasureGroupValue (MEAN)Dispersion
Group ASubject Global Impression of ChangeWeek 36 Post Randomization4.14 units on a scaleStandard Deviation 2.17
Group ASubject Global Impression of ChangeWeek 12 Post Randomization4.43 units on a scaleStandard Deviation 1.94
Group ASubject Global Impression of ChangeWeek 24 Post Randomization4.76 units on a scaleStandard Deviation 1.38
Group BSubject Global Impression of ChangeWeek 24 Post Randomization5.33 units on a scaleStandard Deviation 0.47
Group BSubject Global Impression of ChangeWeek 36 Post Randomization5.33 units on a scaleStandard Deviation 0.47
Group BSubject Global Impression of ChangeWeek 12 Post Randomization5.67 units on a scaleStandard Deviation 0.47
Group CSubject Global Impression of ChangeWeek 12 Post Randomization1.67 units on a scaleStandard Deviation 1.8
Group CSubject Global Impression of ChangeWeek 36 Post Randomization2.50 units on a scaleStandard Deviation 1.8
Group CSubject Global Impression of ChangeWeek 24 Post Randomization3.33 units on a scaleStandard Deviation 1.6
Secondary

Acute Medication Usage

Comparison of acute medication usage between Groups A, B, and C during baseline, Treatment Period 1, 2, and 3.

Time frame: From day 1 (first day of baseline) to day 281 (84th day of injection cycle 3) plus or minus 12 days

ArmMeasureGroupValue (MEAN)Dispersion
Group AAcute Medication UsageTreatment Period 136.53 number of medications usedStandard Deviation 24.26
Group AAcute Medication UsageTreatment Period 228.33 number of medications usedStandard Deviation 20.98
Group AAcute Medication UsageTreatment Period 325.71 number of medications usedStandard Deviation 18.77
Group AAcute Medication UsageBaseline16.29 number of medications usedStandard Deviation 10.92
Group BAcute Medication UsageTreatment Period 226.33 number of medications usedStandard Deviation 10.08
Group BAcute Medication UsageTreatment Period 39.67 number of medications usedStandard Deviation 6.6
Group BAcute Medication UsageBaseline12.00 number of medications usedStandard Deviation 5.1
Group BAcute Medication UsageTreatment Period 120.67 number of medications usedStandard Deviation 9.03
Group CAcute Medication UsageTreatment Period 136.00 number of medications usedStandard Deviation 19.72
Group CAcute Medication UsageTreatment Period 228.33 number of medications usedStandard Deviation 16.02
Group CAcute Medication UsageBaseline13.83 number of medications usedStandard Deviation 5.46
Group CAcute Medication UsageTreatment Period 328.00 number of medications usedStandard Deviation 16.39
Secondary

Beck Depression Inventory II (BDI-II)

Comparison between Group A, B, and C for BDI-II scores measured at baseline and weeks 12, 24, and 36. A total score of 0-10 = these ups and downs are considered normal, 11-16 = mild mood disturbance,17-20 = borderline clinical depression, 21-30 = moderate depression, 31-40 = severe depression, over 40 = extreme depression

Time frame: Baseline, Week 12, Week 24, and Week 36 Post Randomization

ArmMeasureGroupValue (MEAN)Dispersion
Group ABeck Depression Inventory II (BDI-II)Baseline11.62 units on a scaleStandard Deviation 10.27
Group ABeck Depression Inventory II (BDI-II)Week 12 Post Randomization8.43 units on a scaleStandard Deviation 9.2
Group ABeck Depression Inventory II (BDI-II)Week 24 Post Randomization7.48 units on a scaleStandard Deviation 9.1
Group ABeck Depression Inventory II (BDI-II)Week 36 Post Randomization9.00 units on a scaleStandard Deviation 9.19
Group BBeck Depression Inventory II (BDI-II)Week 36 Post Randomization7.00 units on a scaleStandard Deviation 4.97
Group BBeck Depression Inventory II (BDI-II)Baseline16.67 units on a scaleStandard Deviation 6.13
Group BBeck Depression Inventory II (BDI-II)Week 24 Post Randomization12.33 units on a scaleStandard Deviation 5.44
Group BBeck Depression Inventory II (BDI-II)Week 12 Post Randomization11.00 units on a scaleStandard Deviation 3.27
Group CBeck Depression Inventory II (BDI-II)Week 36 Post Randomization7.00 units on a scaleStandard Deviation 4.04
Group CBeck Depression Inventory II (BDI-II)Week 12 Post Randomization7.67 units on a scaleStandard Deviation 2.92
Group CBeck Depression Inventory II (BDI-II)Week 24 Post Randomization7.00 units on a scaleStandard Deviation 4.97
Group CBeck Depression Inventory II (BDI-II)Baseline11.83 units on a scaleStandard Deviation 6.41
Secondary

Consistency of Response to onbotulinumtoxinA Over Three Injection Cycles

Compare the consistency of duration of onabotulinumtoxinA response by the group assignment at 12 weeks to assessments at 24, and 36 weeks evaluations as measured by the number of responders. A responder is defined as a 30% reduction from baseline in the number of headache days.

Time frame: Weeks 12, 24, and 36 Post Randomization

ArmMeasureGroupValue (NUMBER)
Group AConsistency of Response to onbotulinumtoxinA Over Three Injection CyclesTreatment Period 213 participants
Group AConsistency of Response to onbotulinumtoxinA Over Three Injection CyclesTreatment Period 113 participants
Group AConsistency of Response to onbotulinumtoxinA Over Three Injection CyclesTreatment Period 313 participants
Group BConsistency of Response to onbotulinumtoxinA Over Three Injection CyclesTreatment Period 23 participants
Group BConsistency of Response to onbotulinumtoxinA Over Three Injection CyclesTreatment Period 12 participants
Group BConsistency of Response to onbotulinumtoxinA Over Three Injection CyclesTreatment Period 33 participants
Group CConsistency of Response to onbotulinumtoxinA Over Three Injection CyclesTreatment Period 10 participants
Group CConsistency of Response to onbotulinumtoxinA Over Three Injection CyclesTreatment Period 33 participants
Group CConsistency of Response to onbotulinumtoxinA Over Three Injection CyclesTreatment Period 23 participants
Secondary

Duration of onabotulinumtoxinA Over 3 Injection Cycles

Compare duration of benefit of onabotulinumtoxinA response through 3 injection cycles as measured by headache days per week (including the last 4 weeks of every injection cycle). A percent of responders was calculated using a 30% reduction of the number of headache days compared to average number of headache per week during baseline.

Time frame: Weeks 9, 10, 11, 12, 21, 22, 23, 24, 33, 34, 35, 36 Post Randomization

ArmMeasureGroupValue (NUMBER)
Group ADuration of onabotulinumtoxinA Over 3 Injection CyclesWeek 10 Post Randomization57 percentage of responders
Group ADuration of onabotulinumtoxinA Over 3 Injection CyclesWeek 21 Post Randomization76 percentage of responders
Group ADuration of onabotulinumtoxinA Over 3 Injection CyclesWeek 12 Post Randomization38 percentage of responders
Group ADuration of onabotulinumtoxinA Over 3 Injection CyclesWeek 35 Post Randomization48 percentage of responders
Group ADuration of onabotulinumtoxinA Over 3 Injection CyclesWeek 22 Post Randomization62 percentage of responders
Group ADuration of onabotulinumtoxinA Over 3 Injection CyclesWeek 9 Post Randomization57 percentage of responders
Group ADuration of onabotulinumtoxinA Over 3 Injection CyclesWeek 34 Post Randomization71 percentage of responders
Group ADuration of onabotulinumtoxinA Over 3 Injection CyclesWeek 23 Post Randomization57 percentage of responders
Group ADuration of onabotulinumtoxinA Over 3 Injection CyclesWeek 33 Post Randomization62 percentage of responders
Group ADuration of onabotulinumtoxinA Over 3 Injection CyclesWeek 11 Post Randomization52 percentage of responders
Group ADuration of onabotulinumtoxinA Over 3 Injection CyclesWeek 24 Post Randomization52 percentage of responders
Group ADuration of onabotulinumtoxinA Over 3 Injection CyclesWeek 36 Post Randomization48 percentage of responders
Group BDuration of onabotulinumtoxinA Over 3 Injection CyclesWeek 24 Post Randomization67 percentage of responders
Group BDuration of onabotulinumtoxinA Over 3 Injection CyclesWeek 33 Post Randomization67 percentage of responders
Group BDuration of onabotulinumtoxinA Over 3 Injection CyclesWeek 34 Post Randomization100 percentage of responders
Group BDuration of onabotulinumtoxinA Over 3 Injection CyclesWeek 35 Post Randomization100 percentage of responders
Group BDuration of onabotulinumtoxinA Over 3 Injection CyclesWeek 12 Post Randomization67 percentage of responders
Group BDuration of onabotulinumtoxinA Over 3 Injection CyclesWeek 36 Post Randomization100 percentage of responders
Group BDuration of onabotulinumtoxinA Over 3 Injection CyclesWeek 21 Post Randomization67 percentage of responders
Group BDuration of onabotulinumtoxinA Over 3 Injection CyclesWeek 10 Post Randomization67 percentage of responders
Group BDuration of onabotulinumtoxinA Over 3 Injection CyclesWeek 22 Post Randomization67 percentage of responders
Group BDuration of onabotulinumtoxinA Over 3 Injection CyclesWeek 9 Post Randomization33 percentage of responders
Group BDuration of onabotulinumtoxinA Over 3 Injection CyclesWeek 23 Post Randomization100 percentage of responders
Group BDuration of onabotulinumtoxinA Over 3 Injection CyclesWeek 11 Post Randomization67 percentage of responders
Group CDuration of onabotulinumtoxinA Over 3 Injection CyclesWeek 36 Post Randomization17 percentage of responders
Group CDuration of onabotulinumtoxinA Over 3 Injection CyclesWeek 9 Post Randomization33 percentage of responders
Group CDuration of onabotulinumtoxinA Over 3 Injection CyclesWeek 10 Post Randomization17 percentage of responders
Group CDuration of onabotulinumtoxinA Over 3 Injection CyclesWeek 11 Post Randomization0 percentage of responders
Group CDuration of onabotulinumtoxinA Over 3 Injection CyclesWeek 12 Post Randomization17 percentage of responders
Group CDuration of onabotulinumtoxinA Over 3 Injection CyclesWeek 21 Post Randomization33 percentage of responders
Group CDuration of onabotulinumtoxinA Over 3 Injection CyclesWeek 22 Post Randomization50 percentage of responders
Group CDuration of onabotulinumtoxinA Over 3 Injection CyclesWeek 23 Post Randomization50 percentage of responders
Group CDuration of onabotulinumtoxinA Over 3 Injection CyclesWeek 24 Post Randomization33 percentage of responders
Group CDuration of onabotulinumtoxinA Over 3 Injection CyclesWeek 33 Post Randomization33 percentage of responders
Group CDuration of onabotulinumtoxinA Over 3 Injection CyclesWeek 34 Post Randomization33 percentage of responders
Group CDuration of onabotulinumtoxinA Over 3 Injection CyclesWeek 35 Post Randomization33 percentage of responders
Secondary

Headache Days

Comparison of headache days per month over each injection cycle between Groups A, B, and C (Baseline (28 days), Treatment Period 1(84 days), Treatment Period 2(84 days), and Treatment Period 3(84 days). Subjects will remain in their assigned groups based on assessment at 12 weeks.

Time frame: From day 29 (first day of injection cycle 1) to day 281 (84th day of injection cycle 3) plus or minus 12 days

ArmMeasureGroupValue (MEAN)Dispersion
Group AHeadache DaysBaseline21.95 number of headache daysStandard Deviation 4.19
Group AHeadache DaysTreatment Period 144.76 number of headache daysStandard Deviation 19.8
Group AHeadache DaysTreatment Period 235.06 number of headache daysStandard Deviation 21.27
Group AHeadache DaysTreatment Period 331.43 number of headache daysStandard Deviation 22
Group BHeadache DaysTreatment Period 329.33 number of headache daysStandard Deviation 12.66
Group BHeadache DaysBaseline22.33 number of headache daysStandard Deviation 2.36
Group BHeadache DaysTreatment Period 229.33 number of headache daysStandard Deviation 12.66
Group BHeadache DaysTreatment Period 137.0 number of headache daysStandard Deviation 10.61
Group CHeadache DaysTreatment Period 365.67 number of headache daysStandard Deviation 22.43
Group CHeadache DaysTreatment Period 164.83 number of headache daysStandard Deviation 11.71
Group CHeadache DaysTreatment Period 255 number of headache daysStandard Deviation 21.88
Group CHeadache DaysBaseline24.83 number of headache daysStandard Deviation 3.02
Secondary

Migraine Disability Assessment Scale (MIDAS)

Comparison between Group A, B, and C for MIDAS total scores (effect migraine headaches have on subjects daily function) measured at baseline and weeks 12, 24, and 36. Total score of disability ranges: * 0 to 5, MIDAS Grade I, Little or no disability * 6 to 10, MIDAS Grade II, Mild disability * 11 to 20, MIDAS Grade III, Moderate disability * 21+, MIDAS Grade IV, Severe disability Score ranges from 0-450. No subscales are present.

Time frame: Baseline, Week 12, Week 24, and Week 36 Post Randomization

ArmMeasureGroupValue (MEAN)Dispersion
Group AMigraine Disability Assessment Scale (MIDAS)Baseline84.19 units on a scaleStandard Deviation 54.6
Group AMigraine Disability Assessment Scale (MIDAS)Week 12 Post Randomization19.90 units on a scaleStandard Deviation 14.44
Group AMigraine Disability Assessment Scale (MIDAS)Week 24 Post Randomization27.65 units on a scaleStandard Deviation 22.03
Group AMigraine Disability Assessment Scale (MIDAS)Week 36 Post Randomization28.29 units on a scaleStandard Deviation 28.35
Group BMigraine Disability Assessment Scale (MIDAS)Week 36 Post Randomization30.33 units on a scaleStandard Deviation 15.8
Group BMigraine Disability Assessment Scale (MIDAS)Baseline115.67 units on a scaleStandard Deviation 55.26
Group BMigraine Disability Assessment Scale (MIDAS)Week 24 Post Randomization28.00 units on a scaleStandard Deviation 5.89
Group BMigraine Disability Assessment Scale (MIDAS)Week 12 Post Randomization25.67 units on a scaleStandard Deviation 11.12
Group CMigraine Disability Assessment Scale (MIDAS)Week 36 Post Randomization86.00 units on a scaleStandard Deviation 40.56
Group CMigraine Disability Assessment Scale (MIDAS)Week 12 Post Randomization96.83 units on a scaleStandard Deviation 70.07
Group CMigraine Disability Assessment Scale (MIDAS)Week 24 Post Randomization66.33 units on a scaleStandard Deviation 44.54
Group CMigraine Disability Assessment Scale (MIDAS)Baseline74.33 units on a scaleStandard Deviation 56.78
Secondary

Physician Global Impression of Change (PGIC)

Comparison between Group A, B, and C for PGIC scores measured at weeks 12, 24, and 36. the PGIC scale scores range from 0-7 with 0 being Very Much Worse and 7 being Very Much Improved. A higher score indicates a greater impression of change.

Time frame: Week 12, Week 24, and Week 36 Post Randomization

ArmMeasureGroupValue (MEAN)Dispersion
Group APhysician Global Impression of Change (PGIC)Week 24 Post Randomization5.00 units on a scaleStandard Deviation 1.02
Group APhysician Global Impression of Change (PGIC)Week 12 Post Randomization4.95 units on a scaleStandard Deviation 1.05
Group APhysician Global Impression of Change (PGIC)Week 36 Post Randomization4.81 units on a scaleStandard Deviation 1.1
Group BPhysician Global Impression of Change (PGIC)Week 24 Post Randomization5.33 units on a scaleStandard Deviation 0.47
Group BPhysician Global Impression of Change (PGIC)Week 12 Post Randomization5.33 units on a scaleStandard Deviation 0.47
Group BPhysician Global Impression of Change (PGIC)Week 36 Post Randomization5.00 units on a scaleStandard Deviation 0.82
Group CPhysician Global Impression of Change (PGIC)Week 12 Post Randomization3.50 units on a scaleStandard Deviation 1.26
Group CPhysician Global Impression of Change (PGIC)Week 36 Post Randomization3.67 units on a scaleStandard Deviation 0.94
Group CPhysician Global Impression of Change (PGIC)Week 24 Post Randomization4.00 units on a scaleStandard Deviation 0.58
Secondary

Sleep Quality Question

Comparison between Group A, B, and C for sleep quality scores measured at baseline and weeks 12, 24, and 36 post-randomization. A single sleep quality question was asked indicating quality of sleep over the past four weeks. The scale ranged from 1-5, with 1 being very poor quality and 5 being very good quality of sleep.

Time frame: Baseline, Week 12, Week 24, and Week 36 Post Randomization

ArmMeasureGroupValue (MEAN)Dispersion
Group ASleep Quality QuestionBaseline3.19 units on a scaleStandard Deviation 1.01
Group ASleep Quality QuestionWeek 12 Post Randomization3.48 units on a scaleStandard Deviation 0.85
Group ASleep Quality QuestionWeek 24 Post Randomization3.57 units on a scaleStandard Deviation 0.95
Group ASleep Quality QuestionWeek 36 Post Randomization3.38 units on a scaleStandard Deviation 1.05
Group BSleep Quality QuestionWeek 36 Post Randomization3.67 units on a scaleStandard Deviation 1.25
Group BSleep Quality QuestionBaseline3.33 units on a scaleStandard Deviation 0.47
Group BSleep Quality QuestionWeek 24 Post Randomization3.33 units on a scaleStandard Deviation 0.47
Group BSleep Quality QuestionWeek 12 Post Randomization3.67 units on a scaleStandard Deviation 0.47
Group CSleep Quality QuestionWeek 36 Post Randomization2.50 units on a scaleStandard Deviation 0.76
Group CSleep Quality QuestionWeek 12 Post Randomization2.5 units on a scaleStandard Deviation 0.5
Group CSleep Quality QuestionWeek 24 Post Randomization2.83 units on a scaleStandard Deviation 0.69
Group CSleep Quality QuestionBaseline3.00 units on a scaleStandard Deviation 0.58
Secondary

Social Readjustment Rating Scale (SRRS)

Comparison between Group A, B, and C for SRRS scores (impact of common stressors) measured at baseline and weeks 12, 24, and 36. Scores can range from 0 to an undetermined amount, as subjects are allowed to rate unlisted events according to their own sense of stress. A total lower than 150 suggests a low level of stress and a low probability of developing a stress-related disorder. Scores greater than 150 suggest higher levels of stress and higher probabilities of developing stress-related disorders.

Time frame: Baseline, Week 12, Week 24, and Week 36 Post Randomization

ArmMeasureGroupValue (MEAN)Dispersion
Group ASocial Readjustment Rating Scale (SRRS)Baseline168.68 units on a scaleStandard Deviation 108.77
Group ASocial Readjustment Rating Scale (SRRS)Week 12 Post Randomization131.76 units on a scaleStandard Deviation 115.98
Group ASocial Readjustment Rating Scale (SRRS)Week 24 Post Randomization85.33 units on a scaleStandard Deviation 81.33
Group ASocial Readjustment Rating Scale (SRRS)Week 36 Post Randomization81.81 units on a scaleStandard Deviation 93.02
Group BSocial Readjustment Rating Scale (SRRS)Week 36 Post Randomization221.00 units on a scaleStandard Deviation 117.29
Group BSocial Readjustment Rating Scale (SRRS)Baseline157.00 units on a scaleStandard Deviation 81.86
Group BSocial Readjustment Rating Scale (SRRS)Week 24 Post Randomization215.33 units on a scaleStandard Deviation 163.94
Group BSocial Readjustment Rating Scale (SRRS)Week 12 Post Randomization168.33 units on a scaleStandard Deviation 57.05
Group CSocial Readjustment Rating Scale (SRRS)Week 36 Post Randomization70.83 units on a scaleStandard Deviation 87.49
Group CSocial Readjustment Rating Scale (SRRS)Week 12 Post Randomization141.67 units on a scaleStandard Deviation 99.6
Group CSocial Readjustment Rating Scale (SRRS)Week 24 Post Randomization122.50 units on a scaleStandard Deviation 138.08
Group CSocial Readjustment Rating Scale (SRRS)Baseline199.50 units on a scaleStandard Deviation 161.3
Secondary

State-Trait Anxiety Inventory (STAI)

Comparison between Group A, B, and C for STAI scores measured at baseline and weeks 12, 24, and 36. Scores range from 20-80, with 20 indicating lower levels of anxiety most generally, and 80 indicating higher levels of anxiety most generally.

Time frame: Baseline, Week 12, Week 24, and Week 36 Post Randomization

ArmMeasureGroupValue (MEAN)Dispersion
Group AState-Trait Anxiety Inventory (STAI)Baseline38.76 units on a scaleStandard Deviation 17.97
Group AState-Trait Anxiety Inventory (STAI)Week 12 Post Randomization36.05 units on a scaleStandard Deviation 10.08
Group AState-Trait Anxiety Inventory (STAI)Week 24 Post Randomization36.62 units on a scaleStandard Deviation 9.73
Group AState-Trait Anxiety Inventory (STAI)Week 36 Post Randomization36.86 units on a scaleStandard Deviation 9.92
Group BState-Trait Anxiety Inventory (STAI)Week 36 Post Randomization36.33 units on a scaleStandard Deviation 6.94
Group BState-Trait Anxiety Inventory (STAI)Baseline43.67 units on a scaleStandard Deviation 13.89
Group BState-Trait Anxiety Inventory (STAI)Week 24 Post Randomization38.00 units on a scaleStandard Deviation 11.43
Group BState-Trait Anxiety Inventory (STAI)Week 12 Post Randomization40.00 units on a scaleStandard Deviation 6.53
Group CState-Trait Anxiety Inventory (STAI)Week 36 Post Randomization38.33 units on a scaleStandard Deviation 8.79
Group CState-Trait Anxiety Inventory (STAI)Week 12 Post Randomization36.50 units on a scaleStandard Deviation 8.64
Group CState-Trait Anxiety Inventory (STAI)Week 24 Post Randomization38.00 units on a scaleStandard Deviation 6.16
Group CState-Trait Anxiety Inventory (STAI)Baseline40.67 units on a scaleStandard Deviation 7.25
Other Pre-specified

Neuronal Regrowth

Compare neuronal regrowth in the skin biopsies with duration of benefit of onabotulinumtoxinA in Groups A, B, C from baseline to 12 weeks post randomization. Neuronal regrowth change was scored on a 0-3 point scale with 0 being no change from baseline in regrowth and 3 being significant change from baseline.

Time frame: Baseline & Week 12 Post Randomization

Population: Only a subset of subjects (n = 14) completed this endpoint for the trial based on the protocol design.

ArmMeasureGroupValue (MEAN)Dispersion
Group ANeuronal RegrowthCalcitonin Gene-Related Peptide1.06 units on a scaleStandard Deviation 1.01
Group ANeuronal RegrowthBeta Tublin.61 units on a scaleStandard Deviation 0.66
Group ANeuronal RegrowthSNAP25 (Synaptosomal-Associated Protein)1.22 units on a scaleStandard Deviation 1.03
Group BNeuronal RegrowthCalcitonin Gene-Related Peptide0.0 units on a scaleStandard Deviation 0
Group BNeuronal RegrowthBeta Tublin0.0 units on a scaleStandard Deviation 0
Group BNeuronal RegrowthSNAP25 (Synaptosomal-Associated Protein)0.5 units on a scaleStandard Deviation 0.5
Group CNeuronal RegrowthBeta Tublin1.17 units on a scaleStandard Deviation 1.02
Group CNeuronal RegrowthSNAP25 (Synaptosomal-Associated Protein)0.67 units on a scaleStandard Deviation 0.47
Group CNeuronal RegrowthCalcitonin Gene-Related Peptide1.0 units on a scaleStandard Deviation 1.41

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026