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The purpose of the study is to evaluate efficacy and safety of arbaclofen placarbil (XP19986) versus placebo as adjunctive therapy in subjects with troublesome GERD symptoms despite therapy with approved doses of a Proton Pump Inhibitor (PPI).
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| arbaclofen placarbil-Cohort 1 | Experimental | arbaclofen placarbil 20 mg QD with PPI* * Allowable PPIs : Rabeprazole Sodium 20 mg QD, Esomeprazole Magnesium 20 mg or 40 mg QD, Lansoprazole 15 mg or 30 mg QD, Pantoprazole 20 mg or 40 mg QD, Omeprazole 20 mg or 40 mg QD, Omeprazole/sodium bicarbonate 20 mg or 40 mg QD, Dexlansoprazole 30 mg or 60 mg QD |
|
| arbaclofen placarbil-Cohort 2 | Experimental | arbaclofen placarbil 40 mg QD with PPI* * Allowable PPIs : Rabeprazole Sodium 20 mg QD, Esomeprazole Magnesium 20 mg or 40 mg QD, Lansoprazole 15 mg or 30 mg QD, Pantoprazole 20 mg or 40 mg QD, Omeprazole 20 mg or 40 mg QD, Omeprazole/sodium bicarbonate 20 mg or 40 mg QD, Dexlansoprazole 30 mg or 60 mg QD |
|
| arbaclofen placarbil-Cohort 3 | Experimental | arbaclofen placarbil 20 mg BID with PPI* * Allowable PPIs : Rabeprazole Sodium 20 mg QD, Esomeprazole Magnesium 20 mg or 40 mg QD, Lansoprazole 15 mg or 30 mg QD, Pantoprazole 20 mg or 40 mg QD, Omeprazole 20 mg or 40 mg QD, Omeprazole/sodium bicarbonate 20 mg or 40 mg QD, Dexlansoprazole 30 mg or 60 mg QD |
|
| arbaclofen placarbil-Cohort 4 | Experimental | arbaclofen placarbil 30 mg BID with PPI* * Allowable PPIs : Rabeprazole Sodium 20 mg QD, Esomeprazole Magnesium 20 mg or 40 mg QD, Lansoprazole 15 mg or 30 mg QD, Pantoprazole 20 mg or 40 mg QD, Omeprazole 20 mg or 40 mg QD, Omeprazole/sodium bicarbonate 20 mg or 40 mg QD, Dexlansoprazole 30 mg or 60 mg QD |
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| arbaclofen placarbil-Cohort 1 | Drug | After the 4 week screening period, eligible subjects will be randomized to adjunctive study treatment (arbaclofen placarbil 20 mg QD) for 7 weeks including titration and taper periods |
| Measure | Description | Time Frame |
|---|---|---|
| Heartburn Episodes | number of episodes | 6 weeks |
| Measure | Description | Time Frame |
|---|---|---|
| Regurgitation Episodes | number of episodes | 6 weeks |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Study Director | XenoPort, Inc. | Study Director |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Huntsville | Alabama | 35801 | United States | |||
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 23721547 | Derived | Vakil NB, Huff FJ, Cundy KC. Randomised clinical trial: arbaclofen placarbil in gastro-oesophageal reflux disease--insights into study design for transient lower sphincter relaxation inhibitors. Aliment Pharmacol Ther. 2013 Jul;38(2):107-17. doi: 10.1111/apt.12363. Epub 2013 May 30. |
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| Placebo-Cohort 5 | Placebo Comparator | Placebo dose with PPI* * Allowable PPIs : Rabeprazole Sodium 20 mg QD, Esomeprazole Magnesium 20 mg or 40 mg QD, Lansoprazole 15 mg or 30 mg QD, Pantoprazole 20 mg or 40 mg QD, Omeprazole 20 mg or 40 mg QD, Omeprazole/sodium bicarbonate 20 mg or 40 mg QD, Dexlansoprazole 30 mg or 60 mg QD |
|
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| Placebo-Cohort 5 | Drug | After the 4 week screening period, eligible subjects will be randomized to adjunctive study treatment (placebo) for 7 weeks including titration and taper periods |
|
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| arbaclofen placarbil-Cohort 2 | Drug | After the 4 week screening period, eligible subjects will be randomized to adjunctive study treatment (arbaclofen placarbil 40 mg QD) with for 7 weeks including titration and taper periods |
|
|
| arbaclofen placarbil-Cohort 3 | Drug | After the 4 week screening period, eligible subjects will be randomized to adjunctive study treatment (arbaclofen placarbil 20 mg BID) for 7 weeks including titration and taper periods |
|
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| arbaclofen placarbil-Cohort 4 | Drug | After the 4 week screening period, eligible subjects will be randomized to adjunctive study treatment (arbaclofen placarbil 30 mg BID) for 7 weeks including titration and taper periods |
|
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| PPI | Drug | Allowable PPIs : Rabeprazole Sodium 20 mg QD, Esomeprazole Magnesium 20 mg or 40 mg QD, Lansoprazole 15 mg or 30 mg QD, Pantoprazole 20 mg or 40 mg QD, Omeprazole 20 mg or 40 mg QD, Omeprazole/sodium bicarbonate 20 mg or 40 mg QD, Dexlansoprazole 30 mg or 60 mg QD |
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| Chandler |
| Arizona |
| 85224 |
| United States |
| Mesa | Arizona | 85203 | United States |
| Mesa | Arizona | 85213 | United States |
| Scottsdale | Arizona | 85251 | United States |
| Tucson | Arizona | 85715 | United States |
| Sherwood | Arkansas | 72120 | United States |
| Anaheim | California | 92801 | United States |
| Lancaster | California | 93534 | United States |
| Mission Hills | California | 91345 | United States |
| Sacramento | California | 95821 | United States |
| San Diego | California | 92103 | United States |
| San Diego | California | 92120 | United States |
| Stanford | California | 94305 | United States |
| Westlake Village | California | 91361 | United States |
| Colorado Springs | Colorado | 80909 | United States |
| Lafayette | Colorado | 80026 | United States |
| Lakewood | Colorado | 80215 | United States |
| Littleton | Colorado | 80120 | United States |
| Milford | Connecticut | 06460 | United States |
| Waterbury | Connecticut | 06708 | United States |
| Jupiter | Florida | 33458 | United States |
| Pembroke Pines | Florida | 33024 | United States |
| Atlanta | Georgia | 30342 | United States |
| Clive | Iowa | 50325 | United States |
| Lexington | Kentucky | 40504 | United States |
| Madisonville | Kentucky | 42431 | United States |
| Baton Rouge | Louisiana | 70808 | United States |
| Metairie | Louisiana | 70006 | United States |
| Monroe | Louisiana | 71201 | United States |
| Shreveport | Louisiana | 71103 | United States |
| Annapolis | Maryland | 21401 | United States |
| Hagerstown | Maryland | 21742 | United States |
| Brockton | Massachusetts | 02301 | United States |
| Ann Arbor | Michigan | 48109 | United States |
| Egg Harbor | New Jersey | 08234 | United States |
| Binghamton | New York | 13903 | United States |
| Brooklyn | New York | 11214 | United States |
| Great Neck | New York | 11021 | United States |
| Johnson City | New York | 11042 | United States |
| Lake Success | New York | 11042 | United States |
| Charlotte | North Carolina | 28209 | United States |
| Fayetteville | North Carolina | 28304 | United States |
| Greensboro | North Carolina | 27403 | United States |
| Raleigh | North Carolina | 27612 | United States |
| Fargo | North Dakota | 58104 | United States |
| Columbus | Ohio | 43215 | United States |
| Norman | Oklahoma | 73071 | United States |
| Pittsburgh | Pennsylvania | 15243 | United States |
| Uniontown | Pennsylvania | 15401 | United States |
| Chattanooga | Tennessee | 37421 | United States |
| Germantown | Tennessee | 38138 | United States |
| Bellaire | Texas | 77401 | United States |
| Lake Jackson | Texas | 77566 | United States |
| San Antonio | Texas | 78209 | United States |
| San Antonio | Texas | 78215 | United States |
| Logan | Utah | 84405 | United States |
| Ogden | Utah | 84405 | United States |
| Salt Lake City | Utah | 84107 | United States |
| Charlottesville | Virginia | 22911 | United States |
| Christiansburg | Virginia | 24073 | United States |
| Waukesha | Wisconsin | 53188 | United States |
| Guelph | Ontario | N1H 3R3 | Canada |
| Toronto | Ontario | M3N 2V7 | Canada |
| ID | Term |
|---|---|
| D005764 | Gastroesophageal Reflux |
| ID | Term |
|---|---|
| D015154 | Esophageal Motility Disorders |
| D003680 | Deglutition Disorders |
| D004935 | Esophageal Diseases |
| D005767 | Gastrointestinal Diseases |
| D004066 | Digestive System Diseases |
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| ID | Term |
|---|---|
| C543531 | arbaclofen placarbil |
| D054328 | Proton Pump Inhibitors |
| ID | Term |
|---|---|
| D004791 | Enzyme Inhibitors |
| D045504 | Molecular Mechanisms of Pharmacological Action |
| D020228 | Pharmacologic Actions |
| D020164 | Chemical Actions and Uses |
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