Ignite Creation Date:
2025-12-24 @ 7:46 PM
Ignite Modification Date:
2025-12-29 @ 3:42 PM
Study NCT ID:
NCT00515203
Status:
COMPLETED
Last Update Posted:
2014-07-25
First Post:
2007-08-09
Is NOT Gene Therapy:
True
Has Adverse Events:
True
Brief Title:
Safety and Efficacy Study of Romiplostim (AMG 531) to Treat ITP in Pediatric Subjects
Sponsor:
Organization:
Raw JSON
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The Agreement permits Amgen a limited period of time to review material discussing trial results (typically up to 45 days and possible extension). Amgen may remove confidential information, but authors have final control and approval of publication content. For multi-center studies, the investigator agrees not to publish any results before the first multi-center publication.", 'restrictionType': 'OTHER', 'piSponsorEmployee': False, 'restrictiveAgreement': True}}, 'adverseEventsModule': {'timeFrame': '12 week treatment period', 'description': 'The table of Other Adverse Events summarizes the most frequent non-serious occurrences of adverse events.', 'eventGroups': [{'id': 'EG000', 'title': 'Placebo', 'otherNumAtRisk': 5, 'otherNumAffected': 5, 'seriousNumAtRisk': 5, 'seriousNumAffected': 0}, {'id': 'EG001', 'title': 'Romiplostim', 'otherNumAtRisk': 17, 'otherNumAffected': 16, 'seriousNumAtRisk': 17, 'seriousNumAffected': 1}], 'otherEvents': [{'term': 'Thrombocytopenia', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 0}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 1}], 'organSystem': 'Blood and lymphatic system disorders', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Abdominal pain', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 1}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 1}], 'organSystem': 'Gastrointestinal disorders', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Abdominal pain upper', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 0}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 3}], 'organSystem': 'Gastrointestinal disorders', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Chapped lips', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 0}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 1}], 'organSystem': 'Gastrointestinal disorders', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Diarrhoea', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 0}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 1}], 'organSystem': 'Gastrointestinal disorders', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Mouth haemorrhage', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 0}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 1}], 'organSystem': 'Gastrointestinal disorders', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Toothache', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 0}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 1}], 'organSystem': 'Gastrointestinal disorders', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Vomiting', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 2}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 2}], 'organSystem': 'Gastrointestinal disorders', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Chest discomfort', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 0}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 1}], 'organSystem': 'General disorders', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Injection site haematoma', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 1}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 0}], 'organSystem': 'General disorders', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Malaise', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 1}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 0}], 'organSystem': 'General disorders', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Pyrexia', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 0}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 4}], 'organSystem': 'General disorders', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Hypersensitivity', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 1}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 0}], 'organSystem': 'Immune system disorders', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Ear infection', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 0}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 1}], 'organSystem': 'Infections and infestations', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Herpes simplex', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 1}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 0}], 'organSystem': 'Infections and infestations', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Nasopharyngitis', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 0}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 2}], 'organSystem': 'Infections and infestations', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Otitis media', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 0}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 1}], 'organSystem': 'Infections and infestations', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Sinusitis', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 0}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 1}], 'organSystem': 'Infections and infestations', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Upper respiratory tract infection', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 1}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 2}], 'organSystem': 'Infections and infestations', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Urinary tract infection', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 0}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 1}], 'organSystem': 'Infections and infestations', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Contusion', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 1}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 3}], 'organSystem': 'Injury, poisoning and procedural complications', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Fall', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 0}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 1}], 'organSystem': 'Injury, poisoning and procedural complications', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Scratch', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 1}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 0}], 'organSystem': 'Injury, poisoning and procedural complications', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Skin laceration', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 1}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 0}], 'organSystem': 'Injury, poisoning and procedural complications', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Spleen palpable', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 0}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 1}], 'organSystem': 'Investigations', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Arthralgia', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 1}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 0}], 'organSystem': 'Musculoskeletal and connective tissue disorders', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Back pain', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 1}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 1}], 'organSystem': 'Musculoskeletal and connective tissue disorders', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Inguinal mass', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 0}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 1}], 'organSystem': 'Musculoskeletal and connective tissue disorders', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Pain in extremity', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 1}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 1}], 'organSystem': 'Musculoskeletal and connective tissue disorders', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Dizziness', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 1}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 0}], 'organSystem': 'Nervous system disorders', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Headache', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 2}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 6}], 'organSystem': 'Nervous system disorders', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Emotional disorder', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 0}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 1}], 'organSystem': 'Psychiatric disorders', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Dysuria', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 0}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 1}], 'organSystem': 'Renal and urinary disorders', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Urethral disorder', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 0}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 1}], 'organSystem': 'Renal and urinary disorders', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Genital haemorrhage', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 0}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 1}], 'organSystem': 'Reproductive system and breast disorders', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Vaginal discharge', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 0}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 1}], 'organSystem': 'Reproductive system and breast disorders', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Asthma', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 0}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 1}], 'organSystem': 'Respiratory, thoracic and mediastinal disorders', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Cough', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 2}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 2}], 'organSystem': 'Respiratory, thoracic and mediastinal disorders', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Dyspnoea exertional', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 0}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 1}], 'organSystem': 'Respiratory, thoracic and mediastinal disorders', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Epistaxis', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 1}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 6}], 'organSystem': 'Respiratory, thoracic and mediastinal disorders', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Nasal congestion', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 2}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 0}], 'organSystem': 'Respiratory, thoracic and mediastinal disorders', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Oropharyngeal pain', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 0}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 4}], 'organSystem': 'Respiratory, thoracic and mediastinal disorders', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Pharyngeal erythema', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 1}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 0}], 'organSystem': 'Respiratory, thoracic and mediastinal disorders', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Respiratory tract congestion', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 0}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 1}], 'organSystem': 'Respiratory, thoracic and mediastinal disorders', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Rhinorrhoea', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 1}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 0}], 'organSystem': 'Respiratory, thoracic and mediastinal disorders', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Wheezing', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 0}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 1}], 'organSystem': 'Respiratory, thoracic and mediastinal disorders', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Erythema', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 0}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 1}], 'organSystem': 'Skin and subcutaneous tissue disorders', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Hyperhidrosis', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 1}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 0}], 'organSystem': 'Skin and subcutaneous tissue disorders', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Petechiae', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 1}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 2}], 'organSystem': 'Skin and subcutaneous tissue disorders', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Pruritus', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 0}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 1}], 'organSystem': 'Skin and subcutaneous tissue disorders', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Rash', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 0}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 3}], 'organSystem': 'Skin and subcutaneous tissue disorders', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Rash macular', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 0}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 1}], 'organSystem': 'Skin and subcutaneous tissue disorders', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Haematoma', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 0}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 1}], 'organSystem': 'Vascular disorders', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Haemorrhage', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 0}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 1}], 'organSystem': 'Vascular disorders', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}], 'seriousEvents': [{'term': 'Influenza', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 0}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 1}], 'organSystem': 'Infections and infestations', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}, {'term': 'Sepsis', 'stats': [{'groupId': 'EG000', 'numAtRisk': 5, 'numAffected': 0}, {'groupId': 'EG001', 'numAtRisk': 17, 'numAffected': 1}], 'organSystem': 'Infections and infestations', 'assessmentType': 'SYSTEMATIC_ASSESSMENT', 'sourceVocabulary': 'MedDRA 11.0'}], 'frequencyThreshold': '5'}, 'outcomeMeasuresModule': {'outcomeMeasures': [{'type': 'SECONDARY', 'title': 'Weeks With Platelet Count ≥ 50 x 10^9/L', 'denoms': [{'units': 'Participants', 'counts': [{'value': '17', 'groupId': 'OG000'}, {'value': '5', 'groupId': 'OG001'}]}], 'groups': [{'id': 'OG000', 'title': 'Romiplostim', 'description': 'Romiplostim by subcutaneous injection once weekly at a starting dose of 1 µg/kg, adjusted based on weekly platelet counts to a maximum weekly dose of 10 µg/kg'}, {'id': 'OG001', 'title': 'Placebo', 'description': 'Placebo by subcutaneous injection once weekly'}], 'classes': [{'categories': [{'measurements': [{'value': '5.65', 'spread': '3.00', 'groupId': 'OG000'}, {'value': '0.00', 'spread': '0.00', 'groupId': 'OG001'}]}]}], 'analyses': [{'pValue': '0.0019', 'groupIds': ['OG000', 'OG001'], 'statisticalMethod': 'Cochran-Mantel-Haenszel', 'nonInferiorityType': 'SUPERIORITY_OR_OTHER', 'testedNonInferiority': False}], 'paramType': 'MEAN', 'timeFrame': '12-week treatment period', 'description': 'The number of weeks with platelet count ≥ 50 x 10\\^9/L during the 12 week treatment period.', 'unitOfMeasure': 'Weeks', 'dispersionType': 'Standard Deviation', 'reportingStatus': 'POSTED', 'populationDescription': 'Efficacy Analysis Set, composed of all randomized participants'}, {'type': 'SECONDARY', 'title': 'Bleeding Events (Grade 2 or Higher)', 'denoms': [{'units': 'Participants', 'counts': [{'value': '17', 'groupId': 'OG000'}, {'value': '5', 'groupId': 'OG001'}]}], 'groups': [{'id': 'OG000', 'title': 'Romiplostim', 'description': 'Romiplostim by subcutaneous injection once weekly at a starting dose of 1 µg/kg, adjusted based on weekly platelet counts to a maximum weekly dose of 10 µg/kg'}, {'id': 'OG001', 'title': 'Placebo', 'description': 'Placebo by subcutaneous injection once weekly'}], 'classes': [{'categories': [{'measurements': [{'value': '0.41', 'spread': '1.00', 'groupId': 'OG000'}, {'value': '0.00', 'spread': '0.00', 'groupId': 'OG001'}]}]}], 'analyses': [{'pValue': '0.3651', 'groupIds': ['OG000', 'OG001'], 'statisticalMethod': 'Cochran-Mantel-Haenszel', 'nonInferiorityType': 'SUPERIORITY_OR_OTHER', 'testedNonInferiority': False}], 'paramType': 'MEAN', 'timeFrame': '12-week treatment period (Weeks 2 - 13)', 'description': 'Total number of bleeding events (Grade 2 or higher, i.e., mild to life-threatening, as defined in the protocol) for each participant during Weeks 2-13 (end-of-study visit for non-responders)', 'unitOfMeasure': 'Events per participant', 'dispersionType': 'Standard Deviation', 'reportingStatus': 'POSTED', 'populationDescription': 'Efficacy Analysis Set, composed of all randomized participants'}, {'type': 'SECONDARY', 'title': 'Platelet Count ≥ 50 x 10^9/L for Two Consecutive Weeks', 'denoms': [{'units': 'Participants', 'counts': [{'value': '17', 'groupId': 'OG000'}, {'value': '5', 'groupId': 'OG001'}]}], 'groups': [{'id': 'OG000', 'title': 'Romiplostim', 'description': 'Romiplostim by subcutaneous injection once weekly at a starting dose of 1 µg/kg, adjusted based on weekly platelet counts to a maximum weekly dose of 10 µg/kg'}, {'id': 'OG001', 'title': 'Placebo', 'description': 'Placebo by subcutaneous injection once weekly'}], 'classes': [{'categories': [{'measurements': [{'value': '15', 'groupId': 'OG000'}, {'value': '0', 'groupId': 'OG001'}]}]}], 'analyses': [{'pValue': '0.0008', 'groupIds': ['OG000', 'OG001'], 'statisticalMethod': 'Fisher Exact', 'nonInferiorityType': 'SUPERIORITY_OR_OTHER', 'testedNonInferiority': False}], 'paramType': 'NUMBER', 'timeFrame': '12-week treatment period', 'description': 'Participant incidence of achieving a platelet count ≥50 x 10\\^9/L for two consecutive weeks during the 12 week treatment period.', 'unitOfMeasure': 'Participants', 'reportingStatus': 'POSTED', 'populationDescription': 'Efficacy Analysis Set, composed of all randomized participants'}, {'type': 'SECONDARY', 'title': 'Increase in Platelet Count ≥ 20 x 10^9/L Above Baseline for Two Consecutive Weeks', 'denoms': [{'units': 'Participants', 'counts': [{'value': '17', 'groupId': 'OG000'}, {'value': '5', 'groupId': 'OG001'}]}], 'groups': [{'id': 'OG000', 'title': 'Romiplostim', 'description': 'Romiplostim by subcutaneous injection once weekly at a starting dose of 1 µg/kg, adjusted based on weekly platelet counts to a maximum weekly dose of 10 µg/kg'}, {'id': 'OG001', 'title': 'Placebo', 'description': 'Placebo by subcutaneous injection once weekly'}], 'classes': [{'categories': [{'measurements': [{'value': '15', 'groupId': 'OG000'}, {'value': '0', 'groupId': 'OG001'}]}]}], 'analyses': [{'pValue': '0.0008', 'groupIds': ['OG000', 'OG001'], 'statisticalMethod': 'Fisher Exact', 'nonInferiorityType': 'SUPERIORITY_OR_OTHER', 'testedNonInferiority': False}], 'paramType': 'NUMBER', 'timeFrame': '12-week treatment period', 'description': 'Participant incidence of achieving an increase in platelet count ≥20 x 10\\^9/L above baseline for two consecutive weeks during the 12 week treatment period.', 'unitOfMeasure': 'Participants', 'reportingStatus': 'POSTED', 'populationDescription': 'Efficacy Analysis Set, composed of all randomized participants'}, {'type': 'SECONDARY', 'title': 'Requirement for Rescue Therapy (as Defined Per Protocol)', 'denoms': [{'units': 'Participants', 'counts': [{'value': '17', 'groupId': 'OG000'}, {'value': '5', 'groupId': 'OG001'}]}], 'groups': [{'id': 'OG000', 'title': 'Romiplostim', 'description': 'Romiplostim by subcutaneous injection once weekly at a starting dose of 1 µg/kg, adjusted based on weekly platelet counts to a maximum weekly dose of 10 µg/kg'}, {'id': 'OG001', 'title': 'Placebo', 'description': 'Placebo by subcutaneous injection once weekly'}], 'classes': [{'categories': [{'measurements': [{'value': '2', 'groupId': 'OG000'}, {'value': '2', 'groupId': 'OG001'}]}]}], 'analyses': [{'pValue': '0.2098', 'groupIds': ['OG000', 'OG001'], 'statisticalMethod': 'Fisher Exact', 'nonInferiorityType': 'SUPERIORITY_OR_OTHER', 'testedNonInferiority': False}], 'paramType': 'NUMBER', 'timeFrame': '12-week treatment period', 'description': 'Participant required rescue therapy (as defined per protocol) during the 12 week treatment period.', 'unitOfMeasure': 'Participants', 'reportingStatus': 'POSTED', 'populationDescription': 'Efficacy Analysis Set, composed of all randomized participants'}, {'type': 'PRIMARY', 'title': 'Adverse Events', 'denoms': [{'units': 'Participants', 'counts': [{'value': '17', 'groupId': 'OG000'}, {'value': '5', 'groupId': 'OG001'}]}], 'groups': [{'id': 'OG000', 'title': 'Romiplostim', 'description': 'Romiplostim by subcutaneous injection once weekly at a starting dose of 1 µg/kg, adjusted based on weekly platelet counts to a maximum weekly dose of 10 µg/kg'}, {'id': 'OG001', 'title': 'Placebo', 'description': 'Placebo by subcutaneous injection once weekly'}], 'classes': [{'categories': [{'measurements': [{'value': '16', 'groupId': 'OG000'}, {'value': '5', 'groupId': 'OG001'}]}]}], 'paramType': 'NUMBER', 'timeFrame': '12 weeks', 'description': 'Occurrence of one or more adverse events in the participant during the 12-week treatment period', 'unitOfMeasure': 'Participants', 'reportingStatus': 'POSTED', 'populationDescription': 'Safety Analysis Set, composed of all participants who received at least one dose of study medication'}]}, 'participantFlowModule': {'groups': [{'id': 'FG000', 'title': 'Romiplostim', 'description': 'Romiplostim by subcutaneous injection once weekly at a starting dose of 1 µg/kg, adjusted based on weekly platelet counts to a maximum weekly dose of 10 µg/kg'}, {'id': 'FG001', 'title': 'Placebo', 'description': 'Placebo by subcutaneous injection once weekly'}], 'periods': [{'title': 'Overall Study', 'milestones': [{'type': 'STARTED', 'achievements': [{'groupId': 'FG000', 'numSubjects': '17'}, {'groupId': 'FG001', 'numSubjects': '5'}]}, {'type': 'COMPLETED', 'achievements': [{'groupId': 'FG000', 'numSubjects': '17'}, {'groupId': 'FG001', 'numSubjects': '5'}]}, {'type': 'NOT COMPLETED', 'achievements': [{'groupId': 'FG000', 'numSubjects': '0'}, {'groupId': 'FG001', 'numSubjects': '0'}]}]}], 'recruitmentDetails': 'Participants were enrolled from 19 Jul 2007 through 11 November 2008'}, 'baselineCharacteristicsModule': {'denoms': [{'units': 'Participants', 'counts': [{'value': '17', 'groupId': 'BG000'}, {'value': '5', 'groupId': 'BG001'}, {'value': '22', 'groupId': 'BG002'}]}], 'groups': [{'id': 'BG000', 'title': 'Romiplostim', 'description': 'Romiplostim by subcutaneous injection once weekly at a starting dose of 1 µg/kg, adjusted based on weekly platelet counts to a maximum weekly dose of 10 µg/kg'}, {'id': 'BG001', 'title': 'Placebo', 'description': 'Placebo by subcutaneous injection once weekly'}, {'id': 'BG002', 'title': 'Total', 'description': 'Total of all reporting groups'}], 'measures': [{'title': 'Age, Continuous', 'classes': [{'categories': [{'measurements': [{'value': '9.4', 'spread': '5.4', 'groupId': 'BG000'}, {'value': '9.8', 'spread': '4.6', 'groupId': 'BG001'}, {'value': '9.5', 'spread': '5.1', 'groupId': 'BG002'}]}]}], 'paramType': 'MEAN', 'unitOfMeasure': 'Years', 'dispersionType': 'STANDARD_DEVIATION'}, {'title': 'Sex: Female, Male', 'classes': [{'categories': [{'title': 'Female', 'measurements': [{'value': '4', 'groupId': 'BG000'}, {'value': '2', 'groupId': 'BG001'}, {'value': '6', 'groupId': 'BG002'}]}, {'title': 'Male', 'measurements': [{'value': '13', 'groupId': 'BG000'}, {'value': '3', 'groupId': 'BG001'}, {'value': '16', 'groupId': 'BG002'}]}]}], 'paramType': 'COUNT_OF_PARTICIPANTS', 'unitOfMeasure': 'Participants'}, {'title': 'Race/Ethnicity, Customized', 'classes': [{'title': 'White or Caucasian', 'categories': [{'measurements': [{'value': '9', 'groupId': 'BG000'}, {'value': '4', 'groupId': 'BG001'}, {'value': '13', 'groupId': 'BG002'}]}]}, {'title': 'Black or African American', 'categories': [{'measurements': [{'value': '5', 'groupId': 'BG000'}, {'value': '0', 'groupId': 'BG001'}, {'value': '5', 'groupId': 'BG002'}]}]}, {'title': 'Hispanic or Latino', 'categories': [{'measurements': [{'value': '3', 'groupId': 'BG000'}, {'value': '0', 'groupId': 'BG001'}, {'value': '3', 'groupId': 'BG002'}]}]}, {'title': 'Other', 'categories': [{'measurements': [{'value': '0', 'groupId': 'BG000'}, {'value': '1', 'groupId': 'BG001'}, {'value': '1', 'groupId': 'BG002'}]}]}], 'paramType': 'NUMBER', 'unitOfMeasure': 'Participants'}]}}, 'protocolSection': {'designModule': {'phases': ['PHASE1', 'PHASE2'], 'studyType': 'INTERVENTIONAL', 'designInfo': {'allocation': 'RANDOMIZED', 'maskingInfo': {'masking': 'TRIPLE', 'whoMasked': ['PARTICIPANT', 'INVESTIGATOR', 'OUTCOMES_ASSESSOR']}, 'primaryPurpose': 'TREATMENT', 'interventionModel': 'PARALLEL'}, 'enrollmentInfo': {'type': 'ACTUAL', 'count': 22}}, 'statusModule': {'overallStatus': 'COMPLETED', 'startDateStruct': {'date': '2007-07'}, 'expandedAccessInfo': {'hasExpandedAccess': False}, 'statusVerifiedDate': '2014-07', 'completionDateStruct': {'date': '2009-08', 'type': 'ACTUAL'}, 'lastUpdateSubmitDate': '2014-07-18', 'studyFirstSubmitDate': '2007-08-09', 'resultsFirstSubmitDate': '2010-10-28', 'studyFirstSubmitQcDate': '2007-08-09', 'lastUpdatePostDateStruct': {'date': '2014-07-25', 'type': 'ESTIMATED'}, 'resultsFirstSubmitQcDate': '2011-02-04', 'studyFirstPostDateStruct': {'date': '2007-08-13', 'type': 'ESTIMATED'}, 'resultsFirstPostDateStruct': {'date': '2011-03-01', 'type': 'ESTIMATED'}, 'primaryCompletionDateStruct': {'date': '2009-03', 'type': 'ACTUAL'}}, 'outcomesModule': {'primaryOutcomes': [{'measure': 'Adverse Events', 'timeFrame': '12 weeks', 'description': 'Occurrence of one or more adverse events in the participant during the 12-week treatment period'}], 'secondaryOutcomes': [{'measure': 'Weeks With Platelet Count ≥ 50 x 10^9/L', 'timeFrame': '12-week treatment period', 'description': 'The number of weeks with platelet count ≥ 50 x 10\\^9/L during the 12 week treatment period.'}, {'measure': 'Bleeding Events (Grade 2 or Higher)', 'timeFrame': '12-week treatment period (Weeks 2 - 13)', 'description': 'Total number of bleeding events (Grade 2 or higher, i.e., mild to life-threatening, as defined in the protocol) for each participant during Weeks 2-13 (end-of-study visit for non-responders)'}, {'measure': 'Platelet Count ≥ 50 x 10^9/L for Two Consecutive Weeks', 'timeFrame': '12-week treatment period', 'description': 'Participant incidence of achieving a platelet count ≥50 x 10\\^9/L for two consecutive weeks during the 12 week treatment period.'}, {'measure': 'Increase in Platelet Count ≥ 20 x 10^9/L Above Baseline for Two Consecutive Weeks', 'timeFrame': '12-week treatment period', 'description': 'Participant incidence of achieving an increase in platelet count ≥20 x 10\\^9/L above baseline for two consecutive weeks during the 12 week treatment period.'}, {'measure': 'Requirement for Rescue Therapy (as Defined Per Protocol)', 'timeFrame': '12-week treatment period', 'description': 'Participant required rescue therapy (as defined per protocol) during the 12 week treatment period.'}]}, 'conditionsModule': {'keywords': ['Immune (Idiopathic) Thrombocytopenic Purpura', 'Pediatric Idiopathic Thrombocytopenic Purpura'], 'conditions': ['Idiopathic Thrombocytopenic Purpura', 'Thrombocytopenia in Pediatric Subjects With Immune (Idiopathic) Thrombocytopenic Purpura (ITP)', 'Thrombocytopenia in Subjects With Immune (Idiopathic) Thrombocytopenic Purpura (ITP)']}, 'referencesModule': {'references': [{'pmid': '21502541', 'type': 'BACKGROUND', 'citation': 'Bussel JB, Buchanan GR, Nugent DJ, Gnarra DJ, Bomgaars LR, Blanchette VS, Wang YM, Nie K, Jun S. A randomized, double-blind study of romiplostim to determine its safety and efficacy in children with immune thrombocytopenia. Blood. 2011 Jul 7;118(1):28-36. doi: 10.1182/blood-2010-10-313908. Epub 2011 Apr 18.'}, {'pmid': '21910213', 'type': 'BACKGROUND', 'citation': 'Klaassen RJ, Mathias SD, Buchanan G, Bussel J, Deuson R, Young NL, Collier A, Bomgaars L, Blanchette V. Pilot study of the effect of romiplostim on child health-related quality of life (HRQoL) and parental burden in immune thrombocytopenia (ITP). Pediatr Blood Cancer. 2012 Mar;58(3):395-8. doi: 10.1002/pbc.23312. Epub 2011 Sep 9.'}], 'seeAlsoLinks': [{'url': 'http://www.amgentrials.com', 'label': 'AmgenTrials clinical trials website'}]}, 'descriptionModule': {'briefSummary': 'The purpose of this study is to evaluate the safety and tolerability of romiplostim (AMG 531) in the treatment of thrombocytopenia in pediatric subjects with chronic ITP. We will also evaluate the efficacy of romiplostim (AMG 531) and characterize the pharmacokinetics of romiplostim (AMG 531). It is anticipated that romiplostim (AMG 531), when given at an effective dose and schedule, will be well tolerated treatment for thrombocytopenia among pediatric subjects with chronic ITP.'}, 'eligibilityModule': {'sex': 'ALL', 'stdAges': ['CHILD'], 'maximumAge': '17 Years', 'minimumAge': '1 Year', 'healthyVolunteers': False, 'eligibilityCriteria': 'Inclusion Criteria:\n\n* Before any study-specific procedure, the appropriate written informed consent must be obtained. In addition to the written informed consent, the assent of the child from those subjects capable of providing assent must also be obtained if requested by the IRB/IEC.\n* Diagnosis of ITP according to The American Society of Hematology (ASH) Guidelines at least six months prior to screening\n* Age ≥ 12 months and \\< 18 years at enrollment\n* The mean of two platelet counts taken during the screening period must be ≤ 30 x 10\\^9/L with no single count \\>35 x 10\\^9/L\n* A serum creatinine concentration ≤ 1.5 times the laboratory normal range (for each age category)\n* Adequate liver function; serum bilirubin ≤ 1.5 times the laboratory normal range\n* Hemoglobin \\>10.0 g/dL\n\nExclusion Criteria:\n\n* Known history of a bone marrow stem cell disorder (any abnormal bone marrow findings other than those typical of ITP must be approved by Amgen before a subject may be enrolled in the study)\n* Known history of venous or arterial thrombotic or thromboembolic event\n* Known history of congenital thrombocytopenia\n* Known history of malignancy except basal cell carcinoma\n* Known history of hepatitis B, hepatitis C, or HIV\n* Known history of systemic lupus erythematosus, Evans Syndrome, or autoimmune neutropenia\n* Known positive lupus anticoagulant or history of antiphospholipid antibody syndrome\n* Known history of Disseminated Intravascular Coagulation, Hemolytic Uremic Syndrome, or Thrombotic Thrombocytopenic Purpura\n* Currently receiving any treatment for ITP except for corticosteroids\n* IV Ig or anti-D Ig within two weeks prior to the screening visit\n* Rituximab (for any indication) within 14 weeks before the screening visit or anticipated use during the time of the proposed study\n* Splenectomy within eight weeks of the screening visit\n* Received hematopoietic growth factors including IL-11 (oprelvekin) within four weeks before the screening visit\n* Received any alkylating agents within eight weeks before the screening visit or anticipated use during the time of the proposed study\n* Subject is currently enrolled in or has not yet completed at least four weeks since ending other investigational device or drug trial(s), or subject is receiving investigational agent(s)\n* Past or present participation in any study evaluating PEG-rHuMGDF, recombinant human thrombopoietin (rHuTPO), AMG 531, or related platelet product\n* Pregnant (i.e. positive urine pregnancy test) or breast feeding\n* Subject is not using adequate contraceptive precautions, if applicable.\n* Known hypersensitivity to any recombinant E coli-derived product\n* Subject has any kind of disorder that compromises the ability to comply with all study procedures'}, 'identificationModule': {'nctId': 'NCT00515203', 'briefTitle': 'Safety and Efficacy Study of Romiplostim (AMG 531) to Treat ITP in Pediatric Subjects', 'organization': {'class': 'INDUSTRY', 'fullName': 'Amgen'}, 'officialTitle': 'A Randomized, Double-Blind, Placebo-controlled Phase 1/2 Study to Determine the Safety and Efficacy of Romiplostim (AMG 531) in Thrombocytopenic Pediatric Subjects With Chronic Immune (Idiopathic) Thrombocytopenic Purpura', 'orgStudyIdInfo': {'id': '20060195'}}, 'armsInterventionsModule': {'armGroups': [{'type': 'PLACEBO_COMPARATOR', 'label': 'II.', 'description': '5 thrombocytopenic (as defined per protocol) subjects', 'interventionNames': ['Drug: Placebo']}, {'type': 'EXPERIMENTAL', 'label': 'I.', 'description': '15 thrombocytopenic (as defined per protocol) subjects', 'interventionNames': ['Drug: AMG 531']}], 'interventions': [{'name': 'Placebo', 'type': 'DRUG', 'description': 'Starting dose of 1.0 ug/kg. Dose adjustments are made throughout the study based on individual platelet counts.', 'armGroupLabels': ['II.']}, {'name': 'AMG 531', 'type': 'DRUG', 'otherNames': ['romiplostim'], 'description': 'Starting dose of 1.0 ug/kg. Dose adjustments are made throughout the study based on individual platelet counts.', 'armGroupLabels': ['I.']}]}, 'contactsLocationsModule': {'overallOfficials': [{'name': 'MD', 'role': 'STUDY_DIRECTOR', 'affiliation': 'Amgen'}]}, 'sponsorCollaboratorsModule': {'leadSponsor': {'name': 'Amgen', 'class': 'INDUSTRY'}, 'responsibleParty': {'type': 'SPONSOR'}}}}