[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100561378":3},{"organization":4,"armGroups":7,"interventions":7,"overallOfficials":8,"centralContacts":13,"locations":23,"responsibleParty":40,"collaborators":7,"id":42,"slug":43,"hasResults":44,"nctId":45,"briefTitle":46,"officialTitle":47,"acronym":7,"eligibilityCriteria":48,"healthyVolunteers":44,"sex":49,"minAge":50,"maxAge":51,"enrollmentInfo":52,"targetDuration":7,"studyType":55,"phases":7,"briefSummary":56,"conditions":57,"keywords":61,"overallStatus":26,"whyStopped":7,"lastUpdateSubmitDate":65,"lastUpdatePostDateStruct":66,"startDateStruct":69,"completionDateStruct":71,"leadSponsor":73,"locationsCount":74},{"fullName":5,"class":6},"Gene Solutions","INDUSTRY",null,[9],{"name":10,"affiliation":11,"role":12},"Sinh D Nguyen, PhD","Medical Genetics Institude","PRINCIPAL_INVESTIGATOR",[14,19],{"name":15,"role":16,"phone":17,"phoneExt":7,"email":18},"Lan NL Tu, PhD","CONTACT","+84888843489","lantu@genesolutions.vn",{"name":20,"role":16,"phone":21,"phoneExt":7,"email":22},"Van T Phan, MSc","+84908145990","vanphan@genesolutions.vn",[24],{"facility":25,"status":26,"city":27,"state":7,"zip":7,"country":28,"countryCode":29,"cosmosGeoPoint":30,"geoPoint":35,"contacts":36},"Medical Genetics Institute","RECRUITING","Ho Chi Minh City","Vietnam","VN",{"type":31,"coordinates":32},"Point",[33,34],106.62965,10.82302,{"lat":34,"lon":33},[37,38,39],{"name":15,"role":16,"phone":17,"phoneExt":7,"email":18},{"name":20,"role":16,"phone":21,"phoneExt":7,"email":22},{"name":10,"role":12,"phone":7,"phoneExt":7,"email":7},{"type":41,"investigatorFullName":7,"investigatorTitle":7,"investigatorAffiliation":7,"oldNameTitle":7,"oldOrganization":7},"SPONSOR","100561378","ctdna-monitoring-to-predict-the-efficacy-of-tnt-for-rectal-cancer-100561378",false,"NCT06589388","ctDNA Monitoring to Predict the Efficacy of TNT for Rectal Cancer","ctDNA Monitoring to Predict the Efficacy of Total Neoadjuvant Therapy for Rectal Cancer","Inclusion Criteria:\n\n* 18 years and older, both genders\n* Patients are diagnosed with stage II-III rectal cancer and indicated for total neoadjuvant therapy\n* Biopsy FFPE sample is available at the time of diagnosis\n* Patients consented to participate in the study\n\nExclusion Criteria:\n\n* Stage I rectal cancer, recurrent or metastatic cancer\n* Other cancer metastasis to the rectum\n* Patients are indicated for chemoradiation therapy only\n* Have been or are being treated for cancer\n* Patients do not agree to participate in the studies.","ALL","18 Years","80 Years",{"count":53,"type":54},100,"ESTIMATED","OBSERVATIONAL","This is a prospective observational study with three primary objectives:\n\nObjective 1: Evaluate the detection rate and changes in circulating tumor DNA (ctDNA) levels in blood samples from colorectal cancer patients before, during, and after total neoadjuvant therapy (TNT).\n\nDetermine the detection rate and change of CtDNA in blood samples of cancer patients before, during, and after TNT then assess changes in ctDNA expression within the study population during treatment.\n\n* Determine the ctDNA positivity rate before treatment.\n* Determine the ctDNA positivity rate during TNT.\n* Determine the ctDNA positivity rate after TNT and assess ctDNA level changes during treatment.\n\nObjective 2: Investigate the relationship between ctDNA expression and MRI\u002FCT scan imaging with the pathological complete response (pCR) to neoadjuvant therapy :\n\n* Correlation between ctDNA detection and pCR\u002FTRG\u002FNAR score. Calculate the Positive Prediction Value - PPV, Negative Prediction Value - NPV of ctDNA,\n* Correlation between MRI\u002FCT scan imaging and pCR. Calculate the PPV and NPV of MRI\u002FCT scan\n* Combination of ctDNA detection and MRI\u002FCT scan imaging to predict pCR. Calculate the PPV and NPV of the combined markers.\n\nObjective 3: Evaluate the relationship between post-TNT ctDNA expression and disease-free survival in colorectal cancer patients.",[58,59,60],"Rectal Cancer","Rectal Cancer Stage II","Rectal Cancer Stage III",[62,63,28,64],"liquid biopsy","circulating tumor DNA","total neoadjuvant therapy","2024-09-05",{"date":67,"type":68},"2024-09-19","ACTUAL",{"date":70,"type":68},"2024-05-21",{"date":72,"type":54},"2027-12",{"name":5,"class":6},1]