Migraine DisordersPhase 2NCT00742209
Prevention Study in Adult Patients Suffering From Migraine Headaches
A Phase 2 study testing GSK1838262 in people with Migraine Disorders and Migraine, run by XenoPort, Inc. at 59 sites in 2 countries.
Trial summary
Purpose of the study is to evaluate dose response relationship, efficacy, safety and tolerability of target doses of GSK1838262 compared to placebo in the prophylactic treatment of migraine headache. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Migraine Disorders, Migraine
- What is being tested?
- GSK1838262
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 526 participants
- Where
- 59 sitesin 2 countries
- Study dates
- Aug 2008to Jun 2010
- Phase
- Phase 2
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Outpatient subjects aged 18 years or older.
- Females of non-childbearing potential. If of child-bearing potential, is not lactating and has a negative pregnancy test 7 days prior to study treatment initiation and agrees to use one of the GlaxoSmithKline (GSK)-specified highly effective methods for avoiding pregnancy.
- Subjects suffering from migraine headache with or without aura, according to 2004 IHS criteria 1.1 and 1.2.1.
- Subject has had a history of migraine headache for at least one year, and the age of onset was prior to 50 years.
- Subject has consistent migraine headache over time (i.e., incidence and severity).
- Subject has had at least three migraine headache attacks per month during the 3 months prior to screening and maintains this requirement during the last 4 weeks of the baseline period
Show all 10Show fewer
- Subject has had at least four migraine headache days but less than 15 total headache days (migraine or non-migraine) per month during the 3 months prior to screening and maintains this requirement during the last 4 weeks of the baseline period.
- Subject is able to distinguish migraine headache attacks as discrete from other headaches (i.e., tension-type headaches).
- Subject has the ability to read, comprehend and legibly and reliably record information in paper and electronic format as required by the protocol.
- Subject must be able to provide written informed consent prior to participation in the study. The contents and process of obtaining informed consent will be in accordance with all applicable regulatory requirements.
Who cannot join
- Subject has a history of ergotamine, triptan, opioid, and/or combination pain medication use on >/=10 days per month on a regular basis for >/= 3 months.
- Subject has failed more than 2 adequate treatments of migraine prophylaxis -where failure is defined as a lack of efficacy with treatment duration of at least 8 weeks.
- Subject has history of simple analgesic use on >/=15 days per month for >/=3months.
- Subject is unable to discontinue prohibited medications during the 2-week screening period and throughout the duration of the study including beta-blockers, benzodiazepines, tricyclic antidepressants, calcium channel blockers, antiepileptic drugs, bupropion or serotonergic noradrenergic reuptake inhibitors (SNRIs).
- Subjects who have taken gabapentin or pregabalin previously for the prophylactic treatment of migraine headache. Subjects who have taken gabapentin or pregabalin for treatment of conditions other than migraine are eligible provided, (1) their total exposure to gabapentin and pregabalin is less than 3 months during the preceding 12 months, and (2) the subject stopped taking gabapentin or pregabalin for at least 3 months prior to baseline.
- Subject has a history of cluster headaches or basilar, ophthalmoplegic, hemiplegic, or transformed migraine headaches.
Show all 30Show fewer
- Subject has a current or past history of seizure disorder.
- Subject has any of the following medical conditions, laboratory abnormalities or disorders:
- Hepatic impairment defined as alanine aminotransferase (ALT) or aspartate aminotransferase (AST) >2x upper limit of normal (ULN) or alkaline phosphatase or bilirubin >1.5x ULN
- Chronic hepatitis B or C with a positive Hepatitis B surface antigen (HBsAg) or Hepatitis C Core Antigen Antibody (Hep C antibody)
- Impaired renal function defined as either creatinine clearance <60 mL/min (estimation of creatinine clearance by Cockroft and Gault Method) or renal dysfunction requiring hemodialysis
- Corrected QT (QTc) interval >/= 450 msec based on the average QTc value of triplicate electrocardiograms (ECGs) obtained by the central ECG reader over a brief recording period
- QTc interval >/= 480 msec for subjects with Bundle Branch Block based on the average QTc value of triplicate ECGs obtained by the central ECG reader over a brief recording period
- Uncontrolled hypertension at screen or at time of randomization (sitting systolic blood pressure [SBP] >160 mmHg and/or sitting diastolic blood pressure [DBP] >90 mmHg)
- Medical condition or disorder that would interfere with the action, absorption, distribution, metabolism, or excretion of GSK1838262, or, in the investigator's judgement:
- Is considered to be clinically significant and may pose a safety concern, or,
- Could interfere with the accurate assessment of safety or efficacy, or,
- Could potentially affect a subject's safety or study outcome.
- Subject meets criteria as defined by the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV-TR) for a major depressive episode or for active significant psychiatric disorders within the past year, including dementia, general anxiety disorder, psychotic disorders or bipolar disorder.
- Subjects with a history of depression that is in remission, with or without antidepressant treatment, may participate, unless a stable antidepressant regimen includes a prohibited medication.
- Antidepressant medication may not be changed or discontinued to meet entry criteria and must be stable for at least 3 months prior to screening.
- Subject has a history of clinically significant drug or alcohol abuse as defined by DSM IV TR or is unable to refrain from substance abuse throughout the study.
- Subject is currently participating in another clinical study in which the subject is, or will be exposed to an investigational or non-investigational drug or device.
- Subject has participated in a clinical study in which the subject was exposed to an investigational or non investigational drug or device:
- Within the preceding month for studies unrelated to the current illness (migraine headaches), or
- Within the preceding 3 months for studies related to the current illness (migraine headaches).
- Subjects who have taken botulinum toxin type A (Botox) within the past 6 months.
- Subject has a history of an allergic reaction, or a medically significant adverse reaction to the investigational product or excipients, which, in the opinion of the investigator, makes a subject unsuitable for participation in the study.
- Subject is felt to be at risk of non-compliance (e.g., for taking investigational product or for completing the electronic diary [e-diary]), in the investigator's opinion.
- Subject is a pregnant or nursing woman.
Trial locations and contacts
59 sites in 2 countries.
59 sites in 2 countries
United States45 sites
GSK Investigational Site
Albany, New York, 12206
GSK Investigational Site
Alexandria, Virginia, 22311
GSK Investigational Site
Anaheim, California, 92801
GSK Investigational Site
Atlanta, Georgia, 30308
GSK Investigational Site
Birmingham, Alabama, 35233
GSK Investigational Site
Charleston, South Carolina, 29412
GSK Investigational Site
Chicago, Illinois, 60642
GSK Investigational Site
Cleveland, Ohio, 44195
GSK Investigational Site
Colorado Springs, Colorado, 80904
GSK Investigational Site
Colorado Springs, Colorado, 80909
GSK Investigational Site
DeLand, Florida, 32720
GSK Investigational Site
Denver, Colorado, 80239
GSK Investigational Site
Golden Valley, Minnesota, 55422
GSK Investigational Site
Greensboro, North Carolina, 27405
GSK Investigational Site
Houston, Texas, 77004
GSK Investigational Site
Kalamazoo, Michigan, 49009
GSK Investigational Site
Kansas City, Missouri, 64111
GSK Investigational Site
Las Vegas, Nevada, 89119
GSK Investigational Site
Memphis, Tennessee, 38018
GSK Investigational Site
Nashville, Tennessee, 37203
GSK Investigational Site
Newport Beach, California, 92660
GSK Investigational Site
Philadelphia, Pennsylvania, 19107
GSK Investigational Site
Philadelphia, Pennsylvania, 19139
GSK Investigational Site
Phoenix, Arizona, 85016
GSK Investigational Site
Phoenix, Arizona, 85023
GSK Investigational Site
Pittsburgh, Pennsylvania, 15236
GSK Investigational Site
Raleigh, North Carolina, 27607
GSK Investigational Site
Raleigh, North Carolina, 27609
GSK Investigational Site
Redlands, California, 92374
GSK Investigational Site
Salt Lake City, Utah, 84109
GSK Investigational Site
Salt Lake City, Utah, 84121
GSK Investigational Site
San Antonio, Texas, 78205
GSK Investigational Site
San Francisco, California, 94109
GSK Investigational Site
Santa Monica, California, 90404
GSK Investigational Site
Seattle, Washington, 98195
GSK Investigational Site
Springfield, Missouri, 65807
GSK Investigational Site
St Louis, Missouri, 63141
GSK Investigational Site
Stockbridge, Georgia, 30281
GSK Investigational Site
Sunrise, Florida, 33351
GSK Investigational Site
Wenatchee, Washington, 98801
GSK Investigational Site
West Chester, Ohio, 45069
GSK Investigational Site
West Palm Beach, Florida, 33407
GSK Investigational Site
Westerville, Ohio, 43081
GSK Investigational Site
Westlake Village, California, 91361
GSK Investigational Site
Wichita, Kansas, 67207
Canada14 sites
GSK Investigational Site
Bay Roberts, Newfoundland and Labrador, A0A 1G0
GSK Investigational Site
Brampton, Ontario, L6T 3T1
GSK Investigational Site
Greater Sudbury, Ontario, P3E 1H5
GSK Investigational Site
Montreal, Quebec, H2W 1V1
GSK Investigational Site
Ottawa, Ontario, K1H 1A2
GSK Investigational Site
Ottawa, Ontario, K2G 6E2
GSK Investigational Site
Penticton, British Columbia, V2A 5C8
GSK Investigational Site
Québec, Quebec, G1S 2L6
GSK Investigational Site
Saint Romuald, Quebec, G6W 5M6
GSK Investigational Site
Sherbrooke, Quebec, J1H 4J6
GSK Investigational Site
Surrey, British Columbia, V4H 2H9
GSK Investigational Site
Toronto, Ontario, M3H 5S4
GSK Investigational Site
Toronto, Ontario, M4S 1Y2
GSK Investigational Site
Toronto, Ontario, M9W 4L6
About this study
Official title: Study MPX111381: A Dose-ranging Study Evaluating the Efficacy, Safety and Tolerability of GSK1838262 (XP13512) in the Prophylactic Treatment of Migraine Headache
Purpose of the study is to evaluate dose response relationship, efficacy, safety and tolerability of target doses of GSK1838262 compared to placebo in the prophylactic treatment of migraine headache. Once subjects complete the baseline and meet the randomization criteria, they will complete a 5-wk flexible titration period and then enter the 12 week maintenance period.
Read the detailed description
MPX111381 is a multicenter, randomized, double-blind, placebo-controlled, parallel group, flexible-dose evaluation of GSK1838262 1200 mg/day, 1800 mg/day, 2400 mg/day and 3000 mg/day compared with placebo in the prophylactic treatment of migraine headache.
Subjects 18 years of age must have experienced at least three migraine headache attacks (with or without aura according to 2004 International Headache Society [IHS] criteria 1.1 and 1.2.1) per month during the 3 months prior to screening and at least four migraine headache days but less than 15 total headache days (migraine or non-migraine) per month during the 3 months prior to screening and must maintain this requirement throughout the last 4 weeks of the baseline period. Approximately 528 subjects from approximately 53 centers in North America will be randomized in a 2:1:2:2:1 ratio to the following treatment groups: placebo, GSK1838262 1200 mg/day, 1800 mg/day, 2400 mg/day and 3000 mg/day. Investigational product will be administered twice daily (morning and evening) with food (e.g., meal or snack).
The study will consist of six study periods for a total study duration of up to 30 weeks: Screening (2 weeks), baseline (including randomization, 6 weeks), flexible titration (5 weeks), maintenance (12 weeks), taper (3 weeks) and post-treatment (2 weeks). The flexible titration administration of investigational product is designed to allow subjects to reach the target dose for maintenance treatment or, if unable to reach this target dose, to achieve a maximum tolerated dose for maintenance treatment. Subjects will have the opportunity to undergo a single dose (600 mg/day) downward adjustment during the flexible titration period if intolerability at the current dose occurs. Subsequently, if a single dose downward adjustment has occurred, no further dose adjustments in the study (upward or downward) will be permitted.
- Conditions
- Migraine Disorders, Migraine
- Being tested
- GSK1838262, Placebo
- Keywords
- migraine, prophylaxis, prevention
- Medical subject headings
- Migraine Disorders
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
GSK1838262Drug
Also called XP13512
Flexible dosing: 1200 mg/day, 1800 mg/day, 2400 mg/day and 3000 mg/day
PlaceboDrug
Placebo-control
| Study group | Role | What they receive |
|---|---|---|
| Placebo | Placebo comparator | PBO Receives: Drug: Placebo |
| GSK 1838262 1200 mg/day | Active comparator | 600 or 1200 mg/day Receives: Drug: GSK1838262 |
| GSK 1838262 1800 mg/day | Active comparator | 600 or 1200 or 1800 mg/day Receives: Drug: GSK1838262 |
| GSK 1838262 2400 mg/day | Active comparator | 600 or 1200 or 1800 or 2400 mg/day Receives: Drug: GSK1838262 |
| GSK 1838262 3000 mg/day | Active comparator | 600 or 1200 or 1800 or 2400 or 3000 mg/day Receives: Drug: GSK1838262 |
What is being measured
The primary outcome is the main question the study is designed to answer.
Adjusted Mean Change From Baseline in the Number of Migraine Headache Days (MHD) During the Last 4 Weeks of Treatment Prior to Taper
A migraine headache day is defined as a calendar day with any occurrence of migraine headache pain of at least 30 minutes in duration. Change from baseline was calculated as the mean number of MHD over the last 4 weeks of treatment prior to taper minus the number at baseline using the Last Observation Carried Forward (LOCF). The last 4-week treatment phase is based on the last 4 weeks prior to taper for each participant.
Measured: Baseline and last 4 weeks of treatment prior to taper (up to Week 17)
Secondary outcomes (14)
Mean Change From Baseline in the Number of MHD in All Study Phases
A migraine headache day is defined as a calendar day with any occurrence of migraine headache pain of at least 30 minutes in duration. Change from baseline and the last 4 weeks of treatment prior to taper were calculated means of the number of migraine headache days using the Last Observation Carried Forward (LOCF). Change from baseline is calculated as post-baseline minus baseline. The last 4-week treatment phase is based on the last 4 weeks prior to taper for each participant.
Measured: Baseline and last 4 weeks of treatment prior to taper (up to Week 17)
Adjusted Mean Change From Baseline in the Number of Migraine Attacks
A migraine attack is defined as a migraine headache of at least 30 minutes in duration and may also include recurring non-migraine or migraine headaches . Change from baseline and the last 4 weeks of treatment prior to taper were calculated means of the number of migraine attacks using the Last Observation Carried Forward (LOCF). The last 4-week treatment phase is based on the last 4 weeks prior to taper for each participant.
Measured: Baseline and last 4 weeks of treatment prior to taper (up to Week 17)
Mean Change From Baseline in the Number of Migraine Headache Periods (MHP)
A migraine headache period is a 24-hour block of time that begins at the onset of a migraine event . The 24-hour period is not linked directly with a calendar day. The change from baseline and the last 4 weeks of treatment prior to taper were calculated means of the number of migraine headache periods using the Last Observation Carried Forward (LOCF). The last 4-week treatment phase is based on the last 4 weeks prior to taper for each participant.
Measured: Baseline and last 4 weeks of treatment prior to taper (up to Week 17)
Change From Baseline in the Mean Migraine Attack Duration
The total duration of a migraine attack is measured from migraine attack onset until the resolution of the attack measured in hours and may include more than 1 headache event. The duration is assessed using a Daily Migraine Diary. Change from baseline and the last 4 weeks of treatment prior to taper were calculated means of the number of migraine headache days using the Last Observation Carried Forward (LOCF). Change from baseline is calculated as post-baseline minus baseline. The last 4-week treatment phase is based on the last 4 weeks prior to taper for each participant.
Measured: Baseline and last 4 weeks of treatment prior to taper (up to Week 17)
Change From Baseline in the Mean Peak Migraine Pain Severity
Peak Migraine Pain Severity was measured using a 4-point scale (0=none, 1=mild, 2=moderate, or 3=severe) on a participant self assessed Daily Migraine Diary. The scale measured the maximum pain severity across all headache events considered to be one attack.. Change from baseline and the last 4 weeks of treatment prior to taper were calculated means of the number of migraine headache days using the Last Observation Carried Forward (LOCF). The last 4-week treatment phase is based on the last 4 weeks prior to taper for each participant.
Measured: Baseline and last 4 weeks of treatment prior to taper (up to Week 17)
Mean Change From Baseline to the Last 4-Week Treatment Phase in the Number of Days of Acute Migraine Medication Use
The Number of Days of Acute Migraine Medication Use was assessed via the participant-assessed Daily Migraine Diary.
Measured: Baseline and last 4 weeks of treatment prior to taper (up to Week 17)
Mean Change From Baseline to the Last 4-Week Treatment Phase in the Number of Acute Migraine Medication Doses Administered
The Number of Acute Migraine Medication Doses Administered was captured via the participant-assessed Daily Migraine Diary.
Measured: Baseline and last 4 weeks of treatment prior to taper (up to Week 17)
Mean Change From Baseline to the Last 4-Week Treatment Phase in the Number of Acute Migraine Medication Doses Administered by Triptan Use
The Number of Acute Migraine Medication Administered was measured via the participant-assessed Daily Migraine Diary.
Measured: Baseline and last 4 weeks of treatment prior to taper (up to Week 17)
Mean Change From Baseline to the Last 4-Week Treatment Phase in the Number of Acute Migraine Medication Doses Administered by Opioid Use
The Number of Acute Migraine Medication Doses Administered by Opioid Use was measured via the participant-assessed Daily Migraine Diary.
Measured: Baseline and last 4 weeks of treatment prior to taper (up to Week 17)
Mean Change From Baseline to the Last 4-Week Treatment Phase in the Number of Acute Migraine Medication Doses Administered by Prescription Headache Medication Use
The Number of Acute Migraine Medication Doses Administered by Prescription Headache Medication use was measured via the participant-assessed Daily Migraine Diary.
Measured: Baseline and last 4 weeks of treatment prior to taper (up to Week 17)
Mean Change From Baseline in Percentage of Migraine Attacks With Each of the Following Migraine Symptoms: Aura, Nausea, Vomiting, Photophobia, Phonophobia
The endpoint is defined as the percentage of attacks with each symptom (separately) for each study phase. Migraine symptoms aura, nausea, vomiting, photophobia, and phonophobia are defined as the presence of each migraine symptom during any of the headache events within an attack.
Measured: Baseline and last 4 weeks of treatment prior to taper (up to Week 17)
Percentage of Participants Classified as Responders for Each of the Following Measures: Migraine Headache Days, Migraine Attacks, and Migraine Headache Periods
A responder is defined as a participant who achieved at least a 50% reduction from baseline for the indicated measures.
Measured: Baseline to the Last 4 weeks of treatment
Number of Participants Who Were "Much Improved" or "Very Much Improved" on the 7-point Likert Patient Global Impression of Change (PGIC) Scale Using LOCF at Week 17
The PGIC is a single question measured on the 7-point Likert Scale (1 = "very much improved"; 2 = "much improved"; 7 = "very much worse"). A responder is defined as being "very much improved" or "much improved."
Measured: Week 17
Number of Participants Who Were "Much Improved" or "Very Much Improved" (Responders) on the 7-point Likert Clinical Global Impression of Change (CGIC) Scale Using LOCF at Week 17
The CGIC is a single question measured on a 7-point Likert Scale. (1 = "very much improved"; 2= "much improved, and 7 = "very much worse") designed to give an assessment of treatment from a clinician's perspective. A responder is defined as being 'Very much improved' or 'much improved'.
Measured: Week 17
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted27 Aug 2008 (estimated)
- Study startAug 2008
- Primary completionJun 2010
- Study completionJun 2010
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Migraine DisordersStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 2
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind
- Who is masked
- Participant, Care provider, Investigator, Outcomes assessor
- Enrolment
- 526 participants (actual)
Sponsor and investigators
- Lead sponsor
- XenoPort, Inc.
- Sponsor type
- Industry (pharma, biotech, devices)
- Collaborators
- GlaxoSmithKline
- Responsible party
- Sponsor
- Investigators
- GSK Clinical Trials, Study director, GlaxoSmithKline
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00742209
- Sponsor's protocol ID
- 111381
- Status last verified
- Oct 2011
- First submitted
- 26 Aug 2008
- Last updated
- 22 Jul 2013
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No
Publications
Silberstein S, Goode-Sellers S, Twomey C, Saiers J, Ascher J. Randomized, double-blind, placebo-controlled, phase II trial of gabapentin enacarbil for migraine prophylaxis. Cephalalgia. 2013 Jan;33(2):101-11. doi: 10.1177/0333102412466968. Epub 2012 Nov 19.
PubMed 23165696
Study at a glance
From the registry record, last updated by the sponsor on 22 Jul 2013. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Study MPX111381: A Dose-ranging Study Evaluating the Efficacy, Safety and Tolerability of GSK1838262 (XP13512) in the Prophylactic Treatment of Migraine Headache
- ClinicalTrials.gov ID
- NCT00742209
- Acronym / sponsor ID
- 111381
- Conditions
- Migraine Disorders, Migraine
- Keywords
- migraine, prophylaxis, prevention
- Phase
- Phase 2
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 526 participants (actual)
- Lead sponsor
- XenoPort, Inc.Industry (pharma, biotech, devices)
- Collaborators
- GlaxoSmithKline
- Study start
- Aug 2008
- Primary completion
- Jun 2010 (actual)
- Study completion
- Jun 2010 (actual)
- First posted
- 27 Aug 2008 (estimated)
- Results
- Posted 5 Dec 2011
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Purpose of the study is to evaluate dose response relationship, efficacy, safety and tolerability of target doses of GSK1838262 compared to placebo in the prophylactic treatment of migraine headache. Once subjects complete the baseline and meet the randomization criteria, they will complete a 5-wk flexible titration period and then enter the 12 week maintenance period.
Detailed description
MPX111381 is a multicenter, randomized, double-blind, placebo-controlled, parallel group, flexible-dose evaluation of GSK1838262 1200 mg/day, 1800 mg/day, 2400 mg/day and 3000 mg/day compared with placebo in the prophylactic treatment of migraine headache.
Subjects 18 years of age must have experienced at least three migraine headache attacks (with or without aura according to 2004 International Headache Society [IHS] criteria 1.1 and 1.2.1) per month during the 3 months prior to screening and at least four migraine headache days but less than 15 total headache days (migraine or non-migraine) per month during the 3 months prior to screening and must maintain this requirement throughout the last 4 weeks of the baseline period. Approximately 528 subjects from approximately 53 centers in North America will be randomized in a 2:1:2:2:1 ratio to the following treatment groups: placebo, GSK1838262 1200 mg/day, 1800 mg/day, 2400 mg/day and 3000 mg/day. Investigational product will be administered twice daily (morning and evening) with food (e.g., meal or snack).
The study will consist of six study periods for a total study duration of up to 30 weeks: Screening (2 weeks), baseline (including randomization, 6 weeks), flexible titration (5 weeks), maintenance (12 weeks), taper (3 weeks) and post-treatment (2 weeks). The flexible titration administration of investigational product is designed to allow subjects to reach the target dose for maintenance treatment or, if unable to reach this target dose, to achieve a maximum tolerated dose for maintenance treatment. Subjects will have the opportunity to undergo a single dose (600 mg/day) downward adjustment during the flexible titration period if intolerability at the current dose occurs. Subsequently, if a single dose downward adjustment has occurred, no further dose adjustments in the study (upward or downward) will be permitted.
Study design
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind (participant, care provider, investigator, outcomes assessor)
- Number of arms
- 5
| Arm | Type | Receives |
|---|---|---|
| Placebo | Placebo comparator | Drug: PlaceboPBO |
| GSK 1838262 1200 mg/day | Active comparator | Drug: GSK1838262600 or 1200 mg/day |
| GSK 1838262 1800 mg/day | Active comparator | Drug: GSK1838262600 or 1200 or 1800 mg/day |
| GSK 1838262 2400 mg/day | Active comparator | Drug: GSK1838262600 or 1200 or 1800 or 2400 mg/day |
| GSK 1838262 3000 mg/day | Active comparator | Drug: GSK1838262600 or 1200 or 1800 or 2400 or 3000 mg/day |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (10 listed)
- Outpatient subjects aged 18 years or older.
- Females of non-childbearing potential. If of child-bearing potential, is not lactating and has a negative pregnancy test 7 days prior to study treatment initiation and agrees to use one of the GlaxoSmithKline (GSK)-specified highly effective methods for avoiding pregnancy.
- Subjects suffering from migraine headache with or without aura, according to 2004 IHS criteria 1.1 and 1.2.1.
- Subject has had a history of migraine headache for at least one year, and the age of onset was prior to 50 years.
- Subject has consistent migraine headache over time (i.e., incidence and severity).
Key exclusion criteria (30 listed)
- Subject has a history of ergotamine, triptan, opioid, and/or combination pain medication use on >/=10 days per month on a regular basis for >/= 3 months.
- Subject has failed more than 2 adequate treatments of migraine prophylaxis -where failure is defined as a lack of efficacy with treatment duration of at least 8 weeks.
- Subject has history of simple analgesic use on >/=15 days per month for >/=3months.
- Subject is unable to discontinue prohibited medications during the 2-week screening period and throughout the duration of the study including beta-blockers, benzodiazepines, tricyclic antidepressants, calcium channel blockers, antiepileptic drugs, bupropion or serotonergic noradrenergic reuptake inhibitors (SNRIs).
- Subjects who have taken gabapentin or pregabalin previously for the prophylactic treatment of migraine headache. Subjects who have taken gabapentin or pregabalin for treatment of conditions other than migraine are eligible provided, (1) their total exposure to gabapentin and pregabalin is less than 3 months during the preceding 12 months, and (2) the subject stopped taking gabapentin or pregabalin for at least 3 months prior to baseline.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| GSK1838262Also: XP13512Flexible dosing: 1200 mg/day, 1800 mg/day, 2400 mg/day and 3000 mg/day | Drug | GSK 1838262 1200 mg/day, GSK 1838262 1800 mg/day, GSK 1838262 2400 mg/day, GSK 1838262 3000 mg/day |
| PlaceboPlacebo-control | Drug | Placebo |
Primary outcome
Adjusted Mean Change From Baseline in the Number of Migraine Headache Days (MHD) During the Last 4 Weeks of Treatment Prior to Taper
Time frame: Baseline and last 4 weeks of treatment prior to taper (up to Week 17)
A migraine headache day is defined as a calendar day with any occurrence of migraine headache pain of at least 30 minutes in duration. Change from baseline was calculated as the mean number of MHD over the last 4 weeks of treatment prior to taper minus the number at baseline using the Last Observation Carried Forward (LOCF). The last 4-week treatment phase is based on the last 4 weeks prior to taper for each participant.
14 secondary outcomes
Mean Change From Baseline in the Number of MHD in All Study Phases
Time frame: Baseline and last 4 weeks of treatment prior to taper (up to Week 17)
Adjusted Mean Change From Baseline in the Number of Migraine Attacks
Time frame: Baseline and last 4 weeks of treatment prior to taper (up to Week 17)
Mean Change From Baseline in the Number of Migraine Headache Periods (MHP)
Time frame: Baseline and last 4 weeks of treatment prior to taper (up to Week 17)
Change From Baseline in the Mean Migraine Attack Duration
Time frame: Baseline and last 4 weeks of treatment prior to taper (up to Week 17)
Change From Baseline in the Mean Peak Migraine Pain Severity
Time frame: Baseline and last 4 weeks of treatment prior to taper (up to Week 17)
Mean Change From Baseline to the Last 4-Week Treatment Phase in the Number of Days of Acute Migraine Medication Use
Time frame: Baseline and last 4 weeks of treatment prior to taper (up to Week 17)
Mean Change From Baseline to the Last 4-Week Treatment Phase in the Number of Acute Migraine Medication Doses Administered
Time frame: Baseline and last 4 weeks of treatment prior to taper (up to Week 17)
Mean Change From Baseline to the Last 4-Week Treatment Phase in the Number of Acute Migraine Medication Doses Administered by Triptan Use
Time frame: Baseline and last 4 weeks of treatment prior to taper (up to Week 17)
Mean Change From Baseline to the Last 4-Week Treatment Phase in the Number of Acute Migraine Medication Doses Administered by Opioid Use
Time frame: Baseline and last 4 weeks of treatment prior to taper (up to Week 17)
Mean Change From Baseline to the Last 4-Week Treatment Phase in the Number of Acute Migraine Medication Doses Administered by Prescription Headache Medication Use
Time frame: Baseline and last 4 weeks of treatment prior to taper (up to Week 17)
Mean Change From Baseline in Percentage of Migraine Attacks With Each of the Following Migraine Symptoms: Aura, Nausea, Vomiting, Photophobia, Phonophobia
Time frame: Baseline and last 4 weeks of treatment prior to taper (up to Week 17)
Percentage of Participants Classified as Responders for Each of the Following Measures: Migraine Headache Days, Migraine Attacks, and Migraine Headache Periods
Time frame: Baseline to the Last 4 weeks of treatment
Number of Participants Who Were "Much Improved" or "Very Much Improved" on the 7-point Likert Patient Global Impression of Change (PGIC) Scale Using LOCF at Week 17
Time frame: Week 17
Number of Participants Who Were "Much Improved" or "Very Much Improved" (Responders) on the 7-point Likert Clinical Global Impression of Change (CGIC) Scale Using LOCF at Week 17
Time frame: Week 17
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 22 Jul 2013.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Derived from this study: PubMed 23165696Silberstein S, Goode-Sellers S, Twomey C, Saiers J, Ascher J. Randomized, double-blind, placebo-controlled, phase II trial of gabapentin enacarbil for migraine prophylaxis. Cephalalgia. 2013 Jan;33(2):101-11. doi: 10.1177/0333102412466968. Epub 2012 Nov 19.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
GSK Clinical Trials study director
GlaxoSmithKline
59 sites in 2 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 2 study testing GSK1838262 in people with Migraine Disorders and Migraine, run by XenoPort, Inc. at 59 sites in 2 countries.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 10 inclusion and 30 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 22 Jul 2013. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 59 sites in United States, Canada. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Yes. Results are posted in the registry (first posted 5 Dec 2011). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Adjusted Mean Change From Baseline in the Number of Migraine Headache Days (MHD) During the Last 4 Weeks of Treatment Prior to Taper (time frame: Baseline and last 4 weeks of treatment prior to taper (up to Week 17)). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT00742209, which also lists 1 linked publication.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 22 Jul 2013; AzTrials last refreshed its copy on 7 Nov 2026.