Ignite Creation Date:
2025-12-26 @ 10:58 AM
Ignite Modification Date:
2025-12-31 @ 9:41 PM
Study NCT ID:
NCT01094808
Status:
COMPLETED
Last Update Posted:
2012-03-07
First Post:
2010-03-24
Is NOT Gene Therapy:
True
Has Adverse Events:
True
Brief Title:
Pregabalin and Colonic Function
Sponsor:
Organization:
Raw JSON
{'hasResults': True, 'derivedSection': {'miscInfoModule': {'versionHolder': '2025-12-24'}, 'conditionBrowseModule': {'meshes': [{'id': 'D010146', 'term': 'Pain'}, {'id': 'D009085', 'term': 'Mucopolysaccharidosis IV'}], 'ancestors': [{'id': 'D009461', 'term': 'Neurologic Manifestations'}, {'id': 'D012816', 'term': 'Signs and Symptoms'}, {'id': 'D013568', 'term': 'Pathological Conditions, Signs and Symptoms'}, {'id': 'D009083', 'term': 'Mucopolysaccharidoses'}, {'id': 'D002239', 'term': 'Carbohydrate Metabolism, Inborn Errors'}, {'id': 'D008661', 'term': 'Metabolism, Inborn Errors'}, {'id': 'D030342', 'term': 'Genetic Diseases, Inborn'}, {'id': 'D009358', 'term': 'Congenital, Hereditary, and Neonatal Diseases and Abnormalities'}, {'id': 'D016464', 'term': 'Lysosomal Storage Diseases'}, {'id': 'D017520', 'term': 'Mucinoses'}, {'id': 'D003240', 'term': 'Connective Tissue Diseases'}, {'id': 'D017437', 'term': 'Skin and Connective Tissue Diseases'}, {'id': 'D008659', 'term': 'Metabolic Diseases'}, {'id': 'D009750', 'term': 'Nutritional and Metabolic Diseases'}]}, 'interventionBrowseModule': {'meshes': [{'id': 'D000069583', 'term': 'Pregabalin'}, {'id': 'D002400', 'term': 'Cathartics'}, {'id': 'C033608', 'term': 'Golytely'}], 'ancestors': [{'id': 'D005680', 'term': 'gamma-Aminobutyric Acid'}, {'id': 'D000613', 'term': 'Aminobutyrates'}, {'id': 'D002087', 'term': 'Butyrates'}, {'id': 'D000144', 'term': 'Acids, Acyclic'}, {'id': 'D002264', 'term': 'Carboxylic Acids'}, {'id': 'D009930', 'term': 'Organic Chemicals'}, {'id': 'D000596', 'term': 'Amino Acids'}, {'id': 'D000602', 'term': 'Amino Acids, Peptides, and Proteins'}, {'id': 'D005765', 'term': 'Gastrointestinal Agents'}, {'id': 'D045506', 'term': 'Therapeutic Uses'}, {'id': 'D020228', 'term': 'Pharmacologic Actions'}, {'id': 'D020164', 'term': 'Chemical Actions and Uses'}]}}, 'resultsSection': {'moreInfoModule': {'pointOfContact': {'email': 'camilleri.michael@mayo.edu', 'phone': '507-266-2305', 'title': 'Dr. Michael Camilleri', 'organization': 'Mayo Clinic'}, 'certainAgreement': {'piSponsorEmployee': True, 'restrictiveAgreement': False}}, 'adverseEventsModule': {'timeFrame': '5 hours after tube placement', 'eventGroups': [{'id': 'EG000', 'title': 'Pregabalin 75 mg', 'description': 'Subjects randomized to this arm received a single dose of pregabalin 75 mg orally', 'otherNumAtRisk': 20, 'otherNumAffected': 14, 'seriousNumAtRisk': 20, 'seriousNumAffected': 0}, {'id': 'EG001', 'title': 'Pregabalin 200 mg', 'description': 'Subjects randomized to this arm received a single dose of pregabalin 200 mg orally', 'otherNumAtRisk': 19, 'otherNumAffected': 19, 'seriousNumAtRisk': 19, 'seriousNumAffected': 0}, {'id': 'EG002', 'title': 'Placebo', 'description': 'Subjects randomized to this arm received a single dose of placebo medication orally', 'otherNumAtRisk': 21, 'otherNumAffected': 9, 'seriousNumAtRisk': 21, 'seriousNumAffected': 0}], 'otherEvents': [{'term': 'Tachycardia', 'stats': [{'groupId': 'EG000', 'numAtRisk': 20, 'numEvents': 9, 'numAffected': 9}, {'groupId': 'EG001', 'numAtRisk': 19, 'numEvents': 7, 'numAffected': 7}, {'groupId': 'EG002', 'numAtRisk': 21, 'numEvents': 8, 'numAffected': 8}], 'organSystem': 'Cardiac disorders', 'assessmentType': 'NON_SYSTEMATIC_ASSESSMENT'}, {'term': 'Drowsiness', 'stats': [{'groupId': 'EG000', 'numAtRisk': 20, 'numEvents': 4, 'numAffected': 4}, {'groupId': 'EG001', 'numAtRisk': 19, 'numEvents': 7, 'numAffected': 7}, {'groupId': 'EG002', 'numAtRisk': 21, 'numEvents': 1, 'numAffected': 1}], 'organSystem': 'Nervous system disorders', 'assessmentType': 'NON_SYSTEMATIC_ASSESSMENT'}, {'term': 'Dizziness', 'stats': [{'groupId': 'EG000', 'numAtRisk': 20, 'numEvents': 1, 'numAffected': 1}, {'groupId': 'EG001', 'numAtRisk': 19, 'numEvents': 7, 'numAffected': 7}, {'groupId': 'EG002', 'numAtRisk': 21, 'numEvents': 0, 'numAffected': 0}], 'organSystem': 'Nervous system disorders', 'assessmentType': 'NON_SYSTEMATIC_ASSESSMENT'}], 'frequencyThreshold': '5'}, 'outcomeMeasuresModule': {'outcomeMeasures': [{'type': 'PRIMARY', 'title': 'Sensory Threshold for Pain', 'denoms': [{'units': 'Participants', 'counts': [{'value': '20', 'groupId': 'OG000'}, {'value': '19', 'groupId': 'OG001'}, {'value': '21', 'groupId': 'OG002'}]}], 'groups': [{'id': 'OG000', 'title': 'Pregabalin 75 mg', 'description': 'Subjects randomized to this arm received a single dose of pregabalin 75 mg orally'}, {'id': 'OG001', 'title': 'Pregabalin 200 mg', 'description': 'Subjects randomized to this arm received a single dose of pregabalin 200 mg orally'}, {'id': 'OG002', 'title': 'Placebo', 'description': 'Subjects randomized to this arm received a single dose of placebo medication orally'}], 'classes': [{'categories': [{'measurements': [{'value': '45.8', 'spread': '14.9', 'groupId': 'OG000'}, {'value': '46.7', 'spread': '13.9', 'groupId': 'OG001'}, {'value': '45.0', 'spread': '14.0', 'groupId': 'OG002'}]}]}], 'paramType': 'MEAN', 'timeFrame': 'approximately 60 minutes after drug administration', 'description': 'The sensory threshold for first perception of pain was measured by stepwise inflation of the balloon in increments of 4 mm Hg at 60 second intervals. The balloon was placed in the mid-descending or junction of the sigmoid and descending colon. During this assessment participants were asked to report when they had the first perception of pain. The investigator recorded the threshold pressure at which the participants reported this sensation.', 'unitOfMeasure': 'mm Hg', 'dispersionType': 'Standard Deviation', 'reportingStatus': 'POSTED'}, {'type': 'PRIMARY', 'title': 'Sensation Ratings for Pain and Gas at 30 mm Hg Distension Above Baseline Operating Pressure', 'denoms': [{'units': 'Participants', 'counts': [{'value': '20', 'groupId': 'OG000'}, {'value': '19', 'groupId': 'OG001'}, {'value': '21', 'groupId': 'OG002'}]}], 'groups': [{'id': 'OG000', 'title': 'Pregabalin 75 mg', 'description': 'Subjects randomized to this arm received a single dose of pregabalin 75 mg orally'}, {'id': 'OG001', 'title': 'Pregabalin 200 mg', 'description': 'Subjects randomized to this arm received a single dose of pregabalin 200 mg orally'}, {'id': 'OG002', 'title': 'Placebo', 'description': 'Subjects randomized to this arm received a single dose of placebo medication orally'}], 'classes': [{'title': 'Sensation ratings for pain at 30 mm Hg', 'categories': [{'measurements': [{'value': '47.4', 'spread': '28.3', 'groupId': 'OG000'}, {'value': '36.1', 'spread': '28.4', 'groupId': 'OG001'}, {'value': '46.0', 'spread': '28.7', 'groupId': 'OG002'}]}]}, {'title': 'Sensation ratings for gas at 30 mm Hg', 'categories': [{'measurements': [{'value': '53.4', 'spread': '27.9', 'groupId': 'OG000'}, {'value': '33.2', 'spread': '19.6', 'groupId': 'OG001'}, {'value': '46.6', 'spread': '22.3', 'groupId': 'OG002'}]}]}], 'paramType': 'MEAN', 'timeFrame': 'Approximately 60 minutes after drug administration', 'description': 'The 30 mm Hg distension refers to inflation of the balloon placed in placed in the mid-descending or junction of the sigmoid and descending colon. Pain and gas were individually measured by a 100 mm long Visual Analog Scale (VAS). The VAS does not have any pre-set marks between the extremes. For the pain VAS, 0 means no pain and 100 mm means extreme pain. For the gas VAS, 0 means no gas sensation and 100 mm means extreme gas sensation. The investigator measures the mark made by the participant in mm and records this for the value of either pain or gas.', 'unitOfMeasure': 'mm', 'dispersionType': 'Standard Deviation', 'reportingStatus': 'POSTED'}, {'type': 'PRIMARY', 'title': 'Colonic Compliance', 'denoms': [{'units': 'Participants', 'counts': [{'value': '20', 'groupId': 'OG000'}, {'value': '19', 'groupId': 'OG001'}, {'value': '21', 'groupId': 'OG002'}]}], 'groups': [{'id': 'OG000', 'title': 'Pregabalin 75 mg', 'description': 'Subjects randomized to this arm received a single dose of pregabalin 75 mg orally'}, {'id': 'OG001', 'title': 'Pregabalin 200 mg', 'description': 'Subjects randomized to this arm received a single dose of pregabalin 200 mg orally'}, {'id': 'OG002', 'title': 'Placebo', 'description': 'Subjects randomized to this arm received a single dose of placebo medication orally'}], 'classes': [{'categories': [{'measurements': [{'value': '17.6', 'spread': '5.1', 'groupId': 'OG000'}, {'value': '19.1', 'spread': '4.6', 'groupId': 'OG001'}, {'value': '17.4', 'spread': '4.8', 'groupId': 'OG002'}]}]}], 'paramType': 'MEAN', 'timeFrame': 'Approximately 60 minutes after drug administration', 'description': 'Colonic compliance is a measure of the "stiffness" of the colon, that is, what pressure was needed to reach half the maximum value of the colon. After the barostat balloon catheter was inserted in the mid-descending or junction of the sigmoid and descending colon, the balloon was inflated. After an initial conditioning distension to 20 mm Hg, colonic compliance was measured by step-wise inflation with increments of 4 mm Hg. Colonic compliance was analyzed by a validated linear interpolation method. The pressure at half maximum volume serves as a summary of colonic compliance.', 'unitOfMeasure': 'mm Hg', 'dispersionType': 'Standard Deviation', 'reportingStatus': 'POSTED'}, {'type': 'PRIMARY', 'title': 'Postprandial Colonic Tone [Reported] as the Symmetric Percent [Change]in Baseline Colonic Barostat Balloon Volume', 'denoms': [{'units': 'Participants', 'counts': [{'value': '20', 'groupId': 'OG000'}, {'value': '19', 'groupId': 'OG001'}, {'value': '21', 'groupId': 'OG002'}]}], 'groups': [{'id': 'OG000', 'title': 'Pregabalin 75 mg', 'description': 'Subjects randomized to this arm received a single dose of pregabalin 75 mg orally'}, {'id': 'OG001', 'title': 'Pregabalin 200 mg', 'description': 'Subjects randomized to this arm received a single dose of pregabalin 200 mg orally'}, {'id': 'OG002', 'title': 'Placebo', 'description': 'Subjects randomized to this arm received a single dose of placebo medication orally'}], 'classes': [{'categories': [{'measurements': [{'value': '21.9', 'spread': '12.4', 'groupId': 'OG000'}, {'value': '35.3', 'spread': '25.2', 'groupId': 'OG001'}, {'value': '27.8', 'spread': '21.8', 'groupId': 'OG002'}]}]}], 'paramType': 'MEAN', 'timeFrame': 'The first 30 minutes postprandially, and preprandial (30 minutes)', 'description': 'The symmetric percent reduction in baseline colonic barostat balloon volume during the first 30 minutes postprandially (PP) corrected for the preprandial (30 min) tone, (symmetric percent change= 100\\*log\\_e\\[fasting/PP\\]). A positive symmetric percent change reflects a decrease in barostat balloon volume indicating a reduction in colonic tone. (The balloon was placed in the mid-descending or junction of the sigmoid and descending colon.)', 'unitOfMeasure': 'Symmetric percentage change', 'dispersionType': 'Standard Deviation', 'reportingStatus': 'POSTED'}, {'type': 'PRIMARY', 'title': 'Postprandial Motility Index Over 30 Minutes', 'denoms': [{'units': 'Participants', 'counts': [{'value': '20', 'groupId': 'OG000'}, {'value': '19', 'groupId': 'OG001'}, {'value': '21', 'groupId': 'OG002'}]}], 'groups': [{'id': 'OG000', 'title': 'Pregabalin 75 mg', 'description': 'Subjects randomized to this arm received a single dose of pregabalin 75 mg orally'}, {'id': 'OG001', 'title': 'Pregabalin 200 mg', 'description': 'Subjects randomized to this arm received a single dose of pregabalin 200 mg orally'}, {'id': 'OG002', 'title': 'Placebo', 'description': 'Subjects randomized to this arm received a single dose of placebo medication orally'}], 'classes': [{'title': 'Motility index proximal colon at 30 minutes', 'categories': [{'measurements': [{'value': '11.264', 'spread': '1.609', 'groupId': 'OG000'}, {'value': '11.764', 'spread': '1.357', 'groupId': 'OG001'}, {'value': '11.465', 'spread': '1.339', 'groupId': 'OG002'}]}]}, {'title': 'Motility index distal colon at 30 minutes', 'categories': [{'measurements': [{'value': '8.806', 'spread': '3.095', 'groupId': 'OG000'}, {'value': '9.783', 'spread': '2.849', 'groupId': 'OG001'}, {'value': '9.879', 'spread': '2.235', 'groupId': 'OG002'}]}]}], 'paramType': 'MEAN', 'timeFrame': '30 minutes after the meal', 'description': 'The first 30 minute postprandial motility index (MI), MI = log\\_e \\[(number of contractions \\* sum of amplitudes)+1\\]', 'unitOfMeasure': 'log mm Hg', 'dispersionType': 'Standard Deviation', 'reportingStatus': 'POSTED'}, {'type': 'SECONDARY', 'title': 'Sensory Threshold for Gas', 'denoms': [{'units': 'Participants', 'counts': [{'value': '20', 'groupId': 'OG000'}, {'value': '19', 'groupId': 'OG001'}, {'value': '21', 'groupId': 'OG002'}]}], 'groups': [{'id': 'OG000', 'title': 'Pregabalin 75 mg', 'description': 'Subjects randomized to this arm received a single dose of pregabalin 75 mg orally'}, {'id': 'OG001', 'title': 'Pregabalin 200 mg', 'description': 'Subjects randomized to this arm received a single dose of pregabalin 200 mg orally'}, {'id': 'OG002', 'title': 'Placebo', 'description': 'Subjects randomized to this arm received a single dose of placebo medication orally'}], 'classes': [{'categories': [{'measurements': [{'value': '27.6', 'spread': '18.3', 'groupId': 'OG000'}, {'value': '34.3', 'spread': '11.1', 'groupId': 'OG001'}, {'value': '34.5', 'spread': '16.8', 'groupId': 'OG002'}]}]}], 'paramType': 'MEAN', 'timeFrame': 'Approximately 60 minutes after drug administration', 'description': 'The sensory threshold for first perception of gas was measured by stepwise inflation of the balloon in increments of 4 mm Hg at 60 second intervals. (The balloon was placed in the mid-descending or junction of the sigmoid and descending colon.) During this assessment participants were asked to report when they had the first perception of gas. The investigator recorded the threshold pressure at which the participants reported this sensation.', 'unitOfMeasure': 'mm Hg', 'dispersionType': 'Standard Deviation', 'reportingStatus': 'POSTED'}, {'type': 'SECONDARY', 'title': 'Sensation Ratings for Pain at 16, 24, and 36 mm Hg Distension', 'denoms': [{'units': 'Participants', 'counts': [{'value': '20', 'groupId': 'OG000'}, {'value': '19', 'groupId': 'OG001'}, {'value': '21', 'groupId': 'OG002'}]}], 'groups': [{'id': 'OG000', 'title': 'Pregabalin 75 mg', 'description': 'Subjects randomized to this arm received a single dose of pregabalin 75 mg orally'}, {'id': 'OG001', 'title': 'Pregabalin 200 mg', 'description': 'Subjects randomized to this arm received a single dose of pregabalin 200 mg orally'}, {'id': 'OG002', 'title': 'Placebo', 'description': 'Subjects randomized to this arm received a single dose of placebo medication orally'}], 'classes': [{'title': 'Sensation ratings of pain at 16 mm distension', 'categories': [{'measurements': [{'value': '28.70', 'spread': '24.27', 'groupId': 'OG000'}, {'value': '29.00', 'spread': '28.47', 'groupId': 'OG001'}, {'value': '34.29', 'spread': '28.24', 'groupId': 'OG002'}]}]}, {'title': 'Sensation ratings of pain at 24 mm distension', 'categories': [{'measurements': [{'value': '43.00', 'spread': '30.66', 'groupId': 'OG000'}, {'value': '36.84', 'spread': '28.55', 'groupId': 'OG001'}, {'value': '39.48', 'spread': '29.78', 'groupId': 'OG002'}]}]}, {'title': 'Sensation ratings of pain at 36 mm distension', 'categories': [{'measurements': [{'value': '44.30', 'spread': '23.96', 'groupId': 'OG000'}, {'value': '43.37', 'spread': '26.94', 'groupId': 'OG001'}, {'value': '47.62', 'spread': '30.45', 'groupId': 'OG002'}]}]}], 'paramType': 'MEAN', 'timeFrame': 'Approximately 60 minutes after drug administration', 'description': 'The mm Hg distensions refer to the barostat balloon, which was placed in the mid-descending or junction of the sigmoid and descending colon. Pain sensation was measured by a 100 mm long Visual Analog Scale (VAS). The VAS does not have any pre-set marks between the extremes. For the pain VAS, 0 means no pain and 100 mm means extreme pain. The investigator measures the mark made by the participant in mm and records this for the value of pain.', 'unitOfMeasure': 'mm', 'dispersionType': 'Standard Deviation', 'reportingStatus': 'POSTED'}, {'type': 'SECONDARY', 'title': 'Sensation Ratings for Gas at 16, 24, and 36 mm Hg Distension', 'denoms': [{'units': 'Participants', 'counts': [{'value': '20', 'groupId': 'OG000'}, {'value': '19', 'groupId': 'OG001'}, {'value': '21', 'groupId': 'OG002'}]}], 'groups': [{'id': 'OG000', 'title': 'Pregabalin 75 mg', 'description': 'Subjects randomized to this arm received a single dose of pregabalin 75 mg orally'}, {'id': 'OG001', 'title': 'Pregabalin 200 mg', 'description': 'Subjects randomized to this arm received a single dose of pregabalin 200 mg orally'}, {'id': 'OG002', 'title': 'Placebo', 'description': 'Subjects randomized to this arm received a single dose of placebo medication orally'}], 'classes': [{'title': 'Sensation Ratings for Gas at 16 mm Hg distention', 'categories': [{'measurements': [{'value': '37.40', 'spread': '25.10', 'groupId': 'OG000'}, {'value': '30.00', 'spread': '25.25', 'groupId': 'OG001'}, {'value': '37.14', 'spread': '22.62', 'groupId': 'OG002'}]}]}, {'title': 'Sensation Ratings for Gas at 24 mm Hg distention', 'categories': [{'measurements': [{'value': '44.05', 'spread': '26.51', 'groupId': 'OG000'}, {'value': '32.00', 'spread': '21.83', 'groupId': 'OG001'}, {'value': '42.76', 'spread': '23.87', 'groupId': 'OG002'}]}]}, {'title': 'Sensation Ratings for Gas at 36 mm Hg distention', 'categories': [{'measurements': [{'value': '49.65', 'spread': '25.06', 'groupId': 'OG000'}, {'value': '36.58', 'spread': '22.42', 'groupId': 'OG001'}, {'value': '46.24', 'spread': '22.36', 'groupId': 'OG002'}]}]}], 'paramType': 'MEAN', 'timeFrame': 'Approximately 60 minutes after drug administration', 'description': 'The mm Hg distensions refer to the barostat balloon, which was placed in the mid-descending or junction of the sigmoid and descending colon. Gas sensation was measured by a 100 mm long Visual Analog Scale (VAS). The VAS does not have any pre-set marks between the extremes. For the gas VAS, 0 means no gas sensation and 100 mm means extreme gas sensation. The investigator measures the mark made by the participant in mm and records this for the value of either pain or gas.', 'unitOfMeasure': 'mm', 'dispersionType': 'Standard Deviation', 'reportingStatus': 'POSTED'}, {'type': 'SECONDARY', 'title': 'Gas Sensation Rating Averaged Across 4 Distension Pressures (16, 24, 30, and 36 mg Hg)', 'denoms': [{'units': 'Participants', 'counts': [{'value': '20', 'groupId': 'OG000'}, {'value': '19', 'groupId': 'OG001'}, {'value': '21', 'groupId': 'OG002'}]}], 'groups': [{'id': 'OG000', 'title': 'Pregabalin 75 mg', 'description': 'Subjects randomized to this arm received a single dose of pregabalin 75 mg orally'}, {'id': 'OG001', 'title': 'Pregabalin 200 mg', 'description': 'Subjects randomized to this arm received a single dose of pregabalin 200 mg orally'}, {'id': 'OG002', 'title': 'Placebo', 'description': 'Subjects randomized to this arm received a single dose of placebo medication orally'}], 'classes': [{'categories': [{'measurements': [{'value': '43.379', 'spread': '23.413', 'groupId': 'OG000'}, {'value': '33.391', 'spread': '22.106', 'groupId': 'OG001'}, {'value': '41.789', 'spread': '22.278', 'groupId': 'OG002'}]}]}], 'analyses': [{'pValue': '0.14', 'groupIds': ['OG000', 'OG001', 'OG002'], 'paramType': 'mean value for 200 mg Pregabalin', 'ciPctValue': '95', 'paramValue': '33.391', 'pValueComment': 'P-value not adjusted for multiple comparisons; alpha level of 0.05 used', 'dispersionType': 'STANDARD_DEVIATION', 'dispersionValue': '22.106', 'estimateComment': 'A confidence interval was not calculated', 'groupDescription': 'ANCOVA for overall treatment effects', 'statisticalMethod': 'ANCOVA', 'nonInferiorityType': 'SUPERIORITY_OR_OTHER', 'testedNonInferiority': False}], 'paramType': 'MEAN', 'timeFrame': 'Approximately 60 minutes after drug administration', 'description': 'The mm Hg distensions refer to the barostat balloon, which was placed in the mid-descending or junction of the sigmoid and descending colon. Gas sensation was measured by a 100 mm long Visual Analog Scale (VAS). The VAS does not have any pre-set marks between the extremes. For the gas VAS, 0 means no gas sensation and 100 mm means extreme gas sensation. The investigator measures the mark made by the participant in mm and records this for the value of gas. The values across the 4 distension pressures were averaged for this outcome measure.', 'unitOfMeasure': 'mm', 'dispersionType': 'Standard Deviation', 'reportingStatus': 'POSTED'}, {'type': 'SECONDARY', 'title': 'Pain Sensation Rating Averaged Across 4 Distension Pressures (16, 24, 30, and 36 mg Hg)', 'denoms': [{'units': 'Participants', 'counts': [{'value': '20', 'groupId': 'OG000'}, {'value': '19', 'groupId': 'OG001'}, {'value': '21', 'groupId': 'OG002'}]}], 'groups': [{'id': 'OG000', 'title': 'Pregabalin 75 mg', 'description': 'Subjects randomized to this arm received a single dose of pregabalin 75 mg orally'}, {'id': 'OG001', 'title': 'Pregabalin 200 mg', 'description': 'Subjects randomized to this arm received a single dose of pregabalin 200 mg orally'}, {'id': 'OG002', 'title': 'Placebo', 'description': 'Subjects randomized to this arm received a single dose of placebo medication orally'}], 'classes': [{'categories': [{'measurements': [{'value': '44.364', 'spread': '23.478', 'groupId': 'OG000'}, {'value': '35.301', 'spread': '22.295', 'groupId': 'OG001'}, {'value': '43.286', 'spread': '23.678', 'groupId': 'OG002'}]}]}], 'analyses': [{'pValue': '0.12', 'groupIds': ['OG000', 'OG001', 'OG002'], 'paramType': 'mean value for 200 mg Pregabalin', 'ciPctValue': '95', 'paramValue': '35.301', 'pValueComment': 'P-value not adjusted for multiple comparisons; alpha level of 0.05 used', 'dispersionType': 'STANDARD_DEVIATION', 'dispersionValue': '22.295', 'estimateComment': 'A confidence interval was not calculated', 'groupDescription': 'ANCOVA for overall treatment effects', 'statisticalMethod': 'ANCOVA', 'nonInferiorityType': 'SUPERIORITY_OR_OTHER', 'testedNonInferiority': False}], 'paramType': 'MEAN', 'timeFrame': 'Approximately 60 minutes after drug administration', 'description': 'The mm Hg distensions refer to the barostat balloon, which was placed in the mid-descending or junction of the sigmoid and descending colon. Pain sensation was measured by a 100 mm long Visual Analog Scale (VAS). The VAS does not have any pre-set marks between the extremes. For the pain VAS, 0 means no pain and 100 mm means extreme pain. The investigator measures the mark made by the participant in mm and records this for the value of pain. The values across the 4 distension pressures were averaged for this outcome measure.', 'unitOfMeasure': 'mm', 'dispersionType': 'Standard Deviation', 'reportingStatus': 'POSTED'}]}, 'participantFlowModule': {'groups': [{'id': 'FG000', 'title': 'Pregabalin 75 mg', 'description': 'Subjects randomized to this arm received a single dose of pregabalin 75 mg orally'}, {'id': 'FG001', 'title': 'Pregabalin 200 mg', 'description': 'Subjects randomized to this arm received a single dose of pregabalin 200 mg orally'}, {'id': 'FG002', 'title': 'Placebo', 'description': 'Subjects randomized to this arm received a single dose of placebo medication orally'}], 'periods': [{'title': 'Overall Study', 'milestones': [{'type': 'STARTED', 'achievements': [{'groupId': 'FG000', 'numSubjects': '21'}, {'groupId': 'FG001', 'numSubjects': '20'}, {'groupId': 'FG002', 'numSubjects': '21'}]}, {'type': 'COMPLETED', 'achievements': [{'groupId': 'FG000', 'numSubjects': '20'}, {'groupId': 'FG001', 'numSubjects': '19'}, {'groupId': 'FG002', 'numSubjects': '21'}]}, {'type': 'NOT COMPLETED', 'achievements': [{'groupId': 'FG000', 'numSubjects': '1'}, {'groupId': 'FG001', 'numSubjects': '1'}, {'groupId': 'FG002', 'numSubjects': '0'}]}], 'dropWithdraws': [{'type': 'Withdrawal by Subject', 'reasons': [{'groupId': 'FG000', 'numSubjects': '1'}, {'groupId': 'FG001', 'numSubjects': '1'}, {'groupId': 'FG002', 'numSubjects': '0'}]}]}], 'recruitmentDetails': 'The study was conducted between April 2010 and January 2011 at the Mayo Clinic, Rochester, Minnesota.'}, 'baselineCharacteristicsModule': {'denoms': [{'units': 'Participants', 'counts': [{'value': '21', 'groupId': 'BG000'}, {'value': '20', 'groupId': 'BG001'}, {'value': '21', 'groupId': 'BG002'}, {'value': '62', 'groupId': 'BG003'}]}], 'groups': [{'id': 'BG000', 'title': 'Pregabalin 75 mg', 'description': 'Subjects randomized to this arm received a single dose of pregabalin 75 mg orally'}, {'id': 'BG001', 'title': 'Pregabalin 200 mg', 'description': 'Subjects randomized to this arm received a single dose of pregabalin 200 mg orally'}, {'id': 'BG002', 'title': 'Placebo', 'description': 'Subjects randomized to this arm received a single dose of placebo medication orally'}, {'id': 'BG003', 'title': 'Total', 'description': 'Total of all reporting groups'}], 'measures': [{'title': 'Age Continuous', 'classes': [{'categories': [{'measurements': [{'value': '32.2', 'spread': '11.9', 'groupId': 'BG000'}, {'value': '32.4', 'spread': '9.1', 'groupId': 'BG001'}, {'value': '31.6', 'spread': '11.8', 'groupId': 'BG002'}, {'value': '32', 'spread': '11', 'groupId': 'BG003'}]}]}], 'paramType': 'MEAN', 'unitOfMeasure': 'years', 'dispersionType': 'STANDARD_DEVIATION'}, {'title': 'Sex: Female, Male', 'classes': [{'categories': [{'title': 'Female', 'measurements': [{'value': '16', 'groupId': 'BG000'}, {'value': '15', 'groupId': 'BG001'}, {'value': '15', 'groupId': 'BG002'}, {'value': '46', 'groupId': 'BG003'}]}, {'title': 'Male', 'measurements': [{'value': '5', 'groupId': 'BG000'}, {'value': '5', 'groupId': 'BG001'}, {'value': '6', 'groupId': 'BG002'}, {'value': '16', 'groupId': 'BG003'}]}]}], 'paramType': 'COUNT_OF_PARTICIPANTS', 'unitOfMeasure': 'Participants'}, {'title': 'Region of Enrollment', 'classes': [{'title': 'United States', 'categories': [{'measurements': [{'value': '21', 'groupId': 'BG000'}, {'value': '20', 'groupId': 'BG001'}, {'value': '21', 'groupId': 'BG002'}, {'value': '62', 'groupId': 'BG003'}]}]}], 'paramType': 'NUMBER', 'unitOfMeasure': 'participants'}, {'title': 'Body Mass Index (BMI)', 'classes': [{'categories': [{'measurements': [{'value': '25.8', 'spread': '3.7', 'groupId': 'BG000'}, {'value': '26.7', 'spread': '6.3', 'groupId': 'BG001'}, {'value': '26.4', 'spread': '4.4', 'groupId': 'BG002'}, {'value': '26.3', 'spread': '0.6', 'groupId': 'BG003'}]}]}], 'paramType': 'MEAN', 'description': "Body mass index is defined as the individual's body weight divided by the square of his or her height.", 'unitOfMeasure': 'kg/m^2', 'dispersionType': 'STANDARD_DEVIATION'}]}}, 'protocolSection': {'designModule': {'phases': ['PHASE4'], 'studyType': 'INTERVENTIONAL', 'designInfo': {'allocation': 'RANDOMIZED', 'maskingInfo': {'masking': 'QUADRUPLE', 'whoMasked': ['PARTICIPANT', 'CARE_PROVIDER', 'INVESTIGATOR', 'OUTCOMES_ASSESSOR']}, 'interventionModel': 'PARALLEL'}, 'enrollmentInfo': {'type': 'ACTUAL', 'count': 62}}, 'statusModule': {'overallStatus': 'COMPLETED', 'startDateStruct': {'date': '2010-03'}, 'expandedAccessInfo': {'hasExpandedAccess': False}, 'statusVerifiedDate': '2012-03', 'completionDateStruct': {'date': '2011-02', 'type': 'ACTUAL'}, 'lastUpdateSubmitDate': '2012-03-05', 'studyFirstSubmitDate': '2010-03-24', 'resultsFirstSubmitDate': '2012-01-26', 'studyFirstSubmitQcDate': '2010-03-25', 'lastUpdatePostDateStruct': {'date': '2012-03-07', 'type': 'ESTIMATED'}, 'resultsFirstSubmitQcDate': '2012-02-02', 'studyFirstPostDateStruct': {'date': '2010-03-29', 'type': 'ESTIMATED'}, 'resultsFirstPostDateStruct': {'date': '2012-03-06', 'type': 'ESTIMATED'}, 'primaryCompletionDateStruct': {'date': '2011-02', 'type': 'ACTUAL'}}, 'outcomesModule': {'primaryOutcomes': [{'measure': 'Sensory Threshold for Pain', 'timeFrame': 'approximately 60 minutes after drug administration', 'description': 'The sensory threshold for first perception of pain was measured by stepwise inflation of the balloon in increments of 4 mm Hg at 60 second intervals. The balloon was placed in the mid-descending or junction of the sigmoid and descending colon. During this assessment participants were asked to report when they had the first perception of pain. The investigator recorded the threshold pressure at which the participants reported this sensation.'}, {'measure': 'Sensation Ratings for Pain and Gas at 30 mm Hg Distension Above Baseline Operating Pressure', 'timeFrame': 'Approximately 60 minutes after drug administration', 'description': 'The 30 mm Hg distension refers to inflation of the balloon placed in placed in the mid-descending or junction of the sigmoid and descending colon. Pain and gas were individually measured by a 100 mm long Visual Analog Scale (VAS). The VAS does not have any pre-set marks between the extremes. For the pain VAS, 0 means no pain and 100 mm means extreme pain. For the gas VAS, 0 means no gas sensation and 100 mm means extreme gas sensation. The investigator measures the mark made by the participant in mm and records this for the value of either pain or gas.'}, {'measure': 'Colonic Compliance', 'timeFrame': 'Approximately 60 minutes after drug administration', 'description': 'Colonic compliance is a measure of the "stiffness" of the colon, that is, what pressure was needed to reach half the maximum value of the colon. After the barostat balloon catheter was inserted in the mid-descending or junction of the sigmoid and descending colon, the balloon was inflated. After an initial conditioning distension to 20 mm Hg, colonic compliance was measured by step-wise inflation with increments of 4 mm Hg. Colonic compliance was analyzed by a validated linear interpolation method. The pressure at half maximum volume serves as a summary of colonic compliance.'}, {'measure': 'Postprandial Colonic Tone [Reported] as the Symmetric Percent [Change]in Baseline Colonic Barostat Balloon Volume', 'timeFrame': 'The first 30 minutes postprandially, and preprandial (30 minutes)', 'description': 'The symmetric percent reduction in baseline colonic barostat balloon volume during the first 30 minutes postprandially (PP) corrected for the preprandial (30 min) tone, (symmetric percent change= 100\\*log\\_e\\[fasting/PP\\]). A positive symmetric percent change reflects a decrease in barostat balloon volume indicating a reduction in colonic tone. (The balloon was placed in the mid-descending or junction of the sigmoid and descending colon.)'}, {'measure': 'Postprandial Motility Index Over 30 Minutes', 'timeFrame': '30 minutes after the meal', 'description': 'The first 30 minute postprandial motility index (MI), MI = log\\_e \\[(number of contractions \\* sum of amplitudes)+1\\]'}], 'secondaryOutcomes': [{'measure': 'Sensory Threshold for Gas', 'timeFrame': 'Approximately 60 minutes after drug administration', 'description': 'The sensory threshold for first perception of gas was measured by stepwise inflation of the balloon in increments of 4 mm Hg at 60 second intervals. (The balloon was placed in the mid-descending or junction of the sigmoid and descending colon.) During this assessment participants were asked to report when they had the first perception of gas. The investigator recorded the threshold pressure at which the participants reported this sensation.'}, {'measure': 'Sensation Ratings for Pain at 16, 24, and 36 mm Hg Distension', 'timeFrame': 'Approximately 60 minutes after drug administration', 'description': 'The mm Hg distensions refer to the barostat balloon, which was placed in the mid-descending or junction of the sigmoid and descending colon. Pain sensation was measured by a 100 mm long Visual Analog Scale (VAS). The VAS does not have any pre-set marks between the extremes. For the pain VAS, 0 means no pain and 100 mm means extreme pain. The investigator measures the mark made by the participant in mm and records this for the value of pain.'}, {'measure': 'Sensation Ratings for Gas at 16, 24, and 36 mm Hg Distension', 'timeFrame': 'Approximately 60 minutes after drug administration', 'description': 'The mm Hg distensions refer to the barostat balloon, which was placed in the mid-descending or junction of the sigmoid and descending colon. Gas sensation was measured by a 100 mm long Visual Analog Scale (VAS). The VAS does not have any pre-set marks between the extremes. For the gas VAS, 0 means no gas sensation and 100 mm means extreme gas sensation. The investigator measures the mark made by the participant in mm and records this for the value of either pain or gas.'}, {'measure': 'Gas Sensation Rating Averaged Across 4 Distension Pressures (16, 24, 30, and 36 mg Hg)', 'timeFrame': 'Approximately 60 minutes after drug administration', 'description': 'The mm Hg distensions refer to the barostat balloon, which was placed in the mid-descending or junction of the sigmoid and descending colon. Gas sensation was measured by a 100 mm long Visual Analog Scale (VAS). The VAS does not have any pre-set marks between the extremes. For the gas VAS, 0 means no gas sensation and 100 mm means extreme gas sensation. The investigator measures the mark made by the participant in mm and records this for the value of gas. The values across the 4 distension pressures were averaged for this outcome measure.'}, {'measure': 'Pain Sensation Rating Averaged Across 4 Distension Pressures (16, 24, 30, and 36 mg Hg)', 'timeFrame': 'Approximately 60 minutes after drug administration', 'description': 'The mm Hg distensions refer to the barostat balloon, which was placed in the mid-descending or junction of the sigmoid and descending colon. Pain sensation was measured by a 100 mm long Visual Analog Scale (VAS). The VAS does not have any pre-set marks between the extremes. For the pain VAS, 0 means no pain and 100 mm means extreme pain. The investigator measures the mark made by the participant in mm and records this for the value of pain. The values across the 4 distension pressures were averaged for this outcome measure.'}]}, 'oversightModule': {'oversightHasDmc': True}, 'conditionsModule': {'keywords': ['pregabalin', 'motor', 'sensation', 'colon', 'pain', 'gas'], 'conditions': ['Healthy']}, 'referencesModule': {'references': [{'pmid': '21596994', 'type': 'RESULT', 'citation': 'Iturrino J, Camilleri M, Busciglio I, Burton D, Zinsmeister AR. Effect of the alpha2delta ligand, pregabalin, on colonic sensory and motor functions in healthy adults. Am J Physiol Gastrointest Liver Physiol. 2011 Aug;301(2):G377-84. doi: 10.1152/ajpgi.00085.2011. Epub 2011 May 19.'}, {'pmid': '22393902', 'type': 'DERIVED', 'citation': 'Iturrino J, Camilleri M, Busciglio I, Burton D, Zinsmeister AR. Sensations of gas and pain and their relationship with compliance during distension in human colon. Neurogastroenterol Motil. 2012 Jul;24(7):646-51, e275. doi: 10.1111/j.1365-2982.2012.01901.x. Epub 2012 Mar 6.'}]}, 'descriptionModule': {'briefSummary': 'This study is being done to evaluate the effects of pregabalin, a drug approved for anticonvulsive therapy and for neuropathic pain, on colonic and sensory functions in healthy individuals.\n\nThe specific study hypotheses were as follows: 1) pregabalin increases sensation thresholds, decreases sensation ratings, and increases compliance in response to balloon distension in the colon; 2) pregabalin reduces colonic phasic and tonic motility in response to a standardized meal; and 3) sensation ratings are lower with higher colonic compliance.', 'detailedDescription': 'The treatment of patients with irritable bowel syndrome and chronic abdominal pain is advancing with several effective options for symptoms related to bowel dysfunction and bloating/distension. However, there are no approved or effective centrally or peripherally acting visceral analgesics. Pregabalin has been proposed as a treatment for visceral pain, based on the pharmacological actions, and efficacy in neuropathic pain.\n\nThis was a trial of healthy adults to compare the effects of oral pregabalin, 75 mg and 200 mg versus placebo on sensation and contraction of the colon using validated methods.\n\nAll participants presented on the study day after an overnight bowel preparation with an oral colonic lavage solution and a 12-hour fast. Flexible colonoscopy to the splenic flexure was performed without sedation by one investigator. The barostat catheter (constructed at Mayo Clinic, Rochester, MN) incorporating six manometric point sensors 5 cm apart was introduced into the colon over a guidewire, and the polyethylene balloon (10 cm long, cylindrical shape with a maximum volume of 600 ml) was placed in the mid-descending or junction of the sigmoid and descending colon. A rigid-piston barostat was used to measure intraballoon pressure and volume throughout the study. After an initial inflation to a volume of 75 ml to ensure unfolding of the balloon, the operating pressure was identified as the distension pressure at which respiratory excursions were recorded clearly from the barostat tracing, and the intraballoon pressure was set 2 mm Hg above the minimal distension pressure. A conditioning distention from 0 to 36 mm Hg in increments of 4 mm Hg every 15 seconds was performed over a period of 3 minutes.\n\nAfter an equilibration period of 10 minutes, colonic compliance was assessed by the ascending methods of limit (ramp-like increases of 4 mm Hg at 30 section intervals). During the assessment of colonic compliance, participants reported their thresholds for first perception, gas and pain. After another 10 minute equilibration period, fasting colonic tone was measured at operating pressure for a period of 10 minutes.\n\nRandomized-order phasic distentions were then applied at 16, 24, 30, and 36 mm Hg above the operating pressure to measure the sensations of gas and pain. Each distention lasted 1 minute and was followed by an equilibration period at the operating pressure for 2 minutes. A 100-mm visual analog scale (VAS) was used to assess the rating of arousal and stress experienced by each participant before performing the phasic distentions. During the distentions, participants also used the 100-mm VAS to rate the intensity of gas and pain perception at 30 seconds from the start of the distention.\n\nColonic compliance, fasting tone, pressure thresholds for first perception, gas, and pain, and VAS scores of gas and pain during the phasic distentions were measured before administering the study medication and 1 hour after drug administration. After the postdrug assessment of sensation with phasic distentions, a 30-min assessment of fasting colonic tone was measured in each participant; this provided a baseline to compare the effect of a standard 750-ml chocolate milkshake meal across treatment groups. Postprandial tone was measured over 60 minutes, with the main focus on the first 30 minutes. When the recording was completed, the balloon was deflated and the tube removed by gentle traction.'}, 'eligibilityModule': {'sex': 'ALL', 'stdAges': ['ADULT', 'OLDER_ADULT'], 'maximumAge': '75 Years', 'minimumAge': '18 Years', 'healthyVolunteers': True, 'eligibilityCriteria': 'Inclusion criteria:\n\n\\- Healthy males or females\n\nExclusion criteria:\n\n* Abdominal surgery other than appendectomy, laparoscopic cholecystectomy, cesarean section, vaginal or laparoscopic hysterectomy or tubal ligation\n* A history of chronic gastrointestinal or systemic illnesses that could affect gastrointestinal motility\n* Any history of hypertension\n* Use of medications that may alter gastrointestinal motility or interact with the study medications\n* Use of any of the study medications within the past 30 days\n* Pregnancy\n* Chronic renal insufficiency (serum creatinine \\>1.5 mg/dL)\n* Psychiatric or psychologic dysfunction.'}, 'identificationModule': {'nctId': 'NCT01094808', 'briefTitle': 'Pregabalin and Colonic Function', 'organization': {'class': 'OTHER', 'fullName': 'Mayo Clinic'}, 'officialTitle': 'Effect of Pregabalin on Colonic Sensorimotor Function in Healthy Adults.', 'orgStudyIdInfo': {'id': '09-008469'}, 'secondaryIdInfos': [{'id': '1RC1DK086182', 'link': 'https://reporter.nih.gov/quickSearch/1RC1DK086182', 'type': 'NIH'}, {'id': 'R01DK079866', 'link': 'https://reporter.nih.gov/quickSearch/R01DK079866', 'type': 'NIH'}, {'id': 'R01DK067071', 'link': 'https://reporter.nih.gov/quickSearch/R01DK067071', 'type': 'NIH'}, {'id': 'UL1RR024150', 'link': 'https://reporter.nih.gov/quickSearch/UL1RR024150', 'type': 'NIH'}]}, 'armsInterventionsModule': {'armGroups': [{'type': 'EXPERIMENTAL', 'label': 'Pregabalin 75 mg', 'description': 'Subjects randomized to this arm received a single dose of pregabalin 75 mg orally', 'interventionNames': ['Drug: Pregabalin', 'Other: Bowel preparation']}, {'type': 'EXPERIMENTAL', 'label': 'Pregabalin 200 mg', 'description': 'Subjects randomized to this arm received a single dose of pregabalin 200 mg orally', 'interventionNames': ['Drug: Pregabalin', 'Other: Bowel preparation']}, {'type': 'PLACEBO_COMPARATOR', 'label': 'Placebo', 'description': 'Subjects randomized to this arm received a single dose of placebo medication orally', 'interventionNames': ['Drug: Placebo', 'Other: Bowel preparation']}], 'interventions': [{'name': 'Pregabalin', 'type': 'DRUG', 'otherNames': ['Lyrica'], 'description': 'FDA approved medication (capsules) at 75 mg and 200 mg doses', 'armGroupLabels': ['Pregabalin 200 mg', 'Pregabalin 75 mg']}, {'name': 'Placebo', 'type': 'DRUG', 'description': 'Placebo capsules', 'armGroupLabels': ['Placebo']}, {'name': 'Bowel preparation', 'type': 'OTHER', 'otherNames': ['GoLYTELY'], 'description': 'Polyethylene glycol electrolyte solution bowel preparation', 'armGroupLabels': ['Placebo', 'Pregabalin 200 mg', 'Pregabalin 75 mg']}]}, 'contactsLocationsModule': {'locations': [{'zip': '55905', 'city': 'Rochester', 'state': 'Minnesota', 'country': 'United States', 'facility': 'Mayo Clinic', 'geoPoint': {'lat': 44.02163, 'lon': -92.4699}}], 'overallOfficials': [{'name': 'Michael Camilleri, MD', 'role': 'PRINCIPAL_INVESTIGATOR', 'affiliation': 'Mayo Clinic'}]}, 'sponsorCollaboratorsModule': {'leadSponsor': {'name': 'Mayo Clinic', 'class': 'OTHER'}, 'collaborators': [{'name': 'National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)', 'class': 'NIH'}, {'name': 'National Center for Research Resources (NCRR)', 'class': 'NIH'}], 'responsibleParty': {'oldNameTitle': 'Michael Camilleri, MD', 'oldOrganization': 'Mayo Clinic'}}}}