[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100053651":3},{"organization":4,"armGroups":7,"interventions":20,"overallOfficials":33,"centralContacts":37,"locations":32,"responsibleParty":43,"collaborators":32,"id":45,"slug":32,"hasResults":46,"nctId":47,"briefTitle":48,"officialTitle":49,"acronym":50,"eligibilityCriteria":51,"healthyVolunteers":46,"sex":52,"minAge":53,"maxAge":54,"enrollmentInfo":55,"targetDuration":32,"studyType":58,"phases":59,"briefSummary":61,"conditions":62,"keywords":64,"overallStatus":66,"whyStopped":32,"lastUpdateSubmitDate":67,"lastUpdatePostDateStruct":68,"startDateStruct":71,"completionDateStruct":73,"leadSponsor":75,"locationsCount":32},{"fullName":5,"class":6},"Amgen","INDUSTRY",[8,15],{"label":9,"type":10,"description":11,"interventionNames":12},"Romiplostim + Predniso(lo)ne","EXPERIMENTAL","Participants will receive romiplostim administered subcutaneously (SC) in combination with predniso(lo)ne administered orally during Part 1 of the study.\n\nParticipants who complete Part 1 of the study will enter Part 2 and continue participation for study assessments.",[13,14],"Drug: Romiplostim","Drug: Predniso(lo)ne",{"label":16,"type":17,"description":18,"interventionNames":19},"Predniso(lo)ne","ACTIVE_COMPARATOR","Participants will receive predniso(lo)ne administered orally during Part 1 of the study.\n\nParticipants who complete Part 1 of the study will enter Part 2 and continue participation for study assessments.",[14],[21,29],{"type":22,"name":23,"description":24,"armGroupLabels":25,"otherNames":26},"DRUG","Romiplostim","Administered subcutaneously.",[9],[27,28],"AMG 531","Nplate®",{"type":22,"name":16,"description":30,"armGroupLabels":31,"otherNames":32},"Administered orally.",[16,9],null,[34],{"name":35,"affiliation":5,"role":36},"MD","STUDY_DIRECTOR",[38],{"name":39,"role":40,"phone":41,"phoneExt":32,"email":42},"Amgen Call Center","CONTACT","866-572-6436","medinfo@amgen.com",{"type":44,"investigatorFullName":32,"investigatorTitle":32,"investigatorAffiliation":32,"oldNameTitle":32,"oldOrganization":32},"SPONSOR","100053651",false,"NCT07700238","A Study of Romiplostim Plus Predniso(lo)ne vs. Predniso(lo)ne Alone for the Treatment of Previously Untreated Primary Immune Thrombocytopenia (ITP)","A Phase 3, Randomized, Multicenter, Open-label Study to Evaluate the Efficacy and Safety of Romiplostim Plus Predniso(lo)ne vs. Predniso(lo)ne Alone for the Treatment of Adults With Previously Untreated Primary Immune Thrombocytopenia (ITP).","ROMISTER","Inclusion Criteria:\n\n* Age ≥18 years or adult legal age within country if older than 18 years.\n* Diagnosis of primary ITP according to the 2019 International Consensus (ICR) that is previously untreated and requires treatment.\n\n  * Note: The investigator should ensure that the diagnosis of primary ITP is established by excluding other causes of isolated thrombocytopenia, as outlined in the 2019 ICR, which states that the diagnosis of primary ITP is principally based on the exclusion of other causes of isolated thrombocytopenia.\n  * Note: If emergency treatment is necessary, platelet count performed before emergency can be used for study inclusion.\n  * Note: Emergency ITP treatment with any thrombopoietin receptor agonists (TPO-RAs), or splenectomy is not allowed.\n* Platelet count \\\u003C 30 × 10\\^9\u002FL or Platelet count \\\u003C 50× 10\\^9\u002FL with clinically significant bleeding before any medical intervention.\n\nExclusion Criteria:\n\n* Life-threatening bleeding at randomization.\n* Known sensitivity or intolerance to any of the products to be administered during study (eg, uncontrolled diabetes) or to any Escherichia coli-derived product (eg, filgrastim, pegfilgrastim, certain insulins).\n* Uncontrolled hypertension before randomization.\n* Abnormal hepatic or renal function at screening.\n* History of total splenectomy.\n* Use of concurrent anticoagulation therapy and\u002For antiplatelet therapy.\n* Need for nonsteroidal anti-inflammatory drugs (NSAIDs) use and use of NSAIDs within 7 days before randomization.\n* Venous or arterial thrombotic event within 3 or 6 months, respectively, before randomization.\n* Other protocol-defined Inclusion\u002FExclusion may apply.","ALL","18 Years","100 Years",{"count":56,"type":57},126,"ESTIMATED","INTERVENTIONAL",[60],"PHASE3","This Phase 3 study is designed to evaluate the efficacy and safety of romiplostim in combination with predniso(lo)ne compared with predniso(lo)ne alone in adults with previously untreated Primary Immune Thrombocytopenia (ITP).",[63],"Primary Immune Thrombocytopenia",[65],"Adult ITP","NOT_YET_RECRUITING","2026-07-07",{"date":69,"type":70},"2026-07-13","ACTUAL",{"date":72,"type":57},"2026-07-20",{"date":74,"type":57},"2029-09-14",{"name":5,"class":6}]