[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-studies-list:{\"conditionNormalized\":\"flu-vaccine\",\"overallStatus\":[\"RECRUITING\",\"AVAILABLE\",\"NOT_YET_RECRUITING\"],\"orderBy\":\"LastUpdateSubmitDate:desc\",\"size\":25,\"offset\":0}":3,"health-study-condition:flu-vaccine":26},{"pageToken":4,"total":5,"offset":6,"count":5,"results":7},null,1,0,[8],{"id":9,"slug":10,"hasResults":11,"nctId":12,"briefTitle":13,"officialTitle":13,"acronym":4,"eligibilityCriteria":14,"healthyVolunteers":15,"sex":16,"minAge":17,"maxAge":18,"enrollmentInfo":19,"targetDuration":4,"studyType":22,"phases":4,"briefSummary":23,"conditions":24,"keywords":4,"overallStatus":28,"whyStopped":4,"lastUpdateSubmitDate":29,"lastUpdatePostDateStruct":30,"startDateStruct":33,"completionDateStruct":35,"leadSponsor":37,"locationsCount":5},"100406989","understanding-immunity-to-the-flu-vaccine-in-covid-19-patients-100406989",false,"NCT04579588","Understanding Immunity to the Flu Vaccine in COVID-19 Patients","Inclusion Criteria:\n\n* Age 9 through 64 years\n* Diagnosed with COVID-19 at least 2 months prior enrollment\n* Patients with or without obesity, diabetes, chronic fatigue and\u002For long term COVID-19 symptoms\n* Patients without COVID-19 diagnosis for controls\n\nExclusion Criteria:\n\n* Received the influenza vaccine less than 4 months ago\n* Pregnant or lactating\n* Patients with special risks attendant to venipuncture\n* Use of immunomodulatory medications that may impact vaccine immune response per clinician's judgment\n* Contraindication to the flu vaccine\n* Immunodeficiency or autoimmune disease that may impact vaccine immune responses per clinician's judgement",true,"ALL","9 Years","64 Years",{"count":20,"type":21},230,"ESTIMATED","OBSERVATIONAL","The purpose of this study is to measure immunity to the flu vaccine over time in patients who have had COVID-19 and may have other medical conditions including obesity, type 2 diabetes, chronic fatigue, or long-term COVID-19 symptoms. Adults and children (age 9 to 64) who had been diagnosed with COVID-19 as well as controls without COVID-19 will be invited to participate in this study.",[25,26,27],"Corona Virus Infection","Flu Vaccine","Immunity","RECRUITING","2026-03-16",{"date":31,"type":32},"2026-03-18","ACTUAL",{"date":34,"type":32},"2020-10-29",{"date":36,"type":21},"2028-04",{"name":38,"class":39},"Stanford University","OTHER"]