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Post-transplant cyclophosphamide (PTCy), tacrolimus and mycophenolate mofetil (MMF) will be used for for graft versus host disease (GVHD) prophylaxis. This trial will study how well this treatment works in patients with hematologic malignancies.","url":"https://clareohealth.com/clinical-trials/NCT04904588","mainEntity":{"@id":"https://clareohealth.com/clinical-trials/NCT04904588"},"specialty":{"@type":"MedicalSpecialty","name":"Clinical Research"},"audience":{"@type":"PeopleAudience","audienceType":"Patients and Caregivers"},"lastReviewed":"2026-03-18","medicalAudience":{"@type":"MedicalAudience","audienceType":"Patient"},"reviewedBy":{"@type":"Organization","name":"ClinicalTrials.gov","url":"https://clinicaltrials.gov"}}26:["$","script","2",{"type":"application/ld+json","dangerouslySetInnerHTML":{"__html":"$29"}}] 2b:T2484,Stratum 1 Recipient Inclusion Criteria: 1. Age \> 18 years and \< 66 years (chemotherapy-based conditioning) or \< 61 years (total body irradiation \[TBI\]-based conditioning) at the time of signing informed consent 2. Planned MAC regimen as defined per protocol 3. Available partially HLA-MMUD (4/8-7/8 at HLA-A, -B, -C, and -DRB1 is required) with age \< 35 years 4. Product planned for infusion is PBSC 5. HCT Comorbidity Index (HCT-CI) \< 5 6. One of the following diagnoses: 1. Acute myeloid leukemia (AML) acute lymphoblastic leukemia (ALL), or other acute leukemia in 1st remission or beyond with ≤ 5% marrow blasts and no circulating blasts or evidence of extra-medullary disease. Documentation of bone marrow assessment will be accepted within 45 days prior to the anticipated start of conditioning. 2. Patients with myelodysplastic syndrome (MDS) with no circulating blasts and with \< 10% blasts in the bone marrow (higher blast percentage allowed in MDS due to lack of differences in outcomes with \< 5% or 5-10% blasts in MDS). Documentation of bone marrow assessment will be accepted within 45 days prior to the anticipated start of conditioning. 7. Cardiac function: Left ventricular ejection fraction \> 45% based on most recent echocardiogram or multigated acquisition scan (MUGA) results 8. Estimated creatinine clearance \> 60 mL/min calculated by equation 9. Pulmonary function: diffusing capacity of the lungs for carbon monoxide (DLCO) corrected for hemoglobin \> 50% and forced expiratory volume in first second (FEV1) predicted \> 50% based on most recent pulmonary function test results 10. Liver function acceptable per local institutional guidelines 11. Karnofsky performance status (KPS) of \> 70% 12. Subjects ≥ 18 years of age or legally authorized representative must have the ability to give informed consent according to applicable regulatory and local institutional requirements. Stratum 2 Recipient Inclusion Criteria 1. Age \> 18 years at the time of signing informed consent 2. Planned NMA/RIC regimen as defined per protocol 3. Available partially HLA-MMUD (4/8-7/8 at HLA-A, -B, -C, and -DRB1 is required) with age \< 35 years 4. Product planned for infusion is PBSC 5. One of the following diagnoses: 1. Patients with acute leukemia or chronic myeloid leukemia (CML) with no circulating blasts, no evidence of extramedullary disease, and with \< 5% blasts in the bone marrow. Documentation of bone marrow assessment will be accepted within 45 days prior to the anticipated start of conditioning. 2. Patients with MDS with no circulating blasts and with \< 10% blasts in the bone marrow (higher blast percentage allowed in MDS due to lack of differences in outcomes with \< 5% or 5-10% blasts in MDS.) Documentation of bone marrow assessment will be accepted within 45 days prior to the anticipated start of conditioning. 3. Patients with chronic lymphocytic leukemia (CLL) or other leukemias (including prolymphocytic leukemia) with chemosensitive disease at time of transplantation 4. Patients with lymphoma with chemosensitive disease at the time of transplantation 6. Cardiac function: Left ventricular ejection fraction \> 45% based on most recent echocardiogram or MUGA results with no clinical evidence of heart failure 7. Estimated creatinine clearance \> 60 mL/min calculated by equation 8. Pulmonary function: DLCO corrected for hemoglobin \> 50% and FEV1 predicted \> 50% based on most recent pulmonary function test results 9. Liver function acceptable per local institutional guidelines 10. KPS of \> 60% 11. Subjects ≥ 18 years of age or legally authorized representative must have the ability to give informed consent according to applicable regulatory and local institutional requirements. Stratum 3 Recipient Inclusion Criteria 1. Age \> 1 years and \< 21 years at the time of signing informed consent 2. Partially HLA-MMUD (4/8-7/8 at HLA-A, -B, -C, and -DRB1 is required) with age \< 35 years 3. Product planned for infusion is BM 4. Planned MAC regimen as defined per protocol 5. One of the following diagnosis: 1. AML in 1st remission or beyond with ≤ 5% marrow blasts, no circulating blasts or evidence of extra-medullary disease. Pre-transplant MRD testing will be performed as per standard of practice at the treating institution. Patients with any MRD status are eligible and should be enrolled at the discretion of provider. Documentation of bone marrow assessment will be accepted within 45 days prior to the anticipated start of conditioning. 2. Patients MDS with no circulating blasts and less than 10% blasts in the bone marrow. Documentation of bone marrow assessment will be accepted within 45 days prior to the anticipated start of conditioning. 3. ALL in 1st remission or beyond with ≤ 5% marrow blasts, no circulating blasts, or evidence of extra-medullary disease. Pre-transplant MRD testing will be performed as standard practice at the treating institution with the goal of achieving MRD of \<0.01%. Patients with any MRD status are eligible and should be enrolled at the discretion of provider. Documentation of bone marrow assessment will be accepted within 45 days prior to the anticipated start of conditioning. 4. Other leukemia (mixed-phenotype acute leukemia \[MPAL\], CML, or other leukemia) in morphologic remission with ≤ 5% marrow blasts and no circulating blasts or evidence of extramedullary disease. Documentation of bone marrow assessment will be accepted within 45 days prior to the anticipated start of conditioning. 5. Chemotherapy sensitive lymphoma in at least partial remission (PR) 6. KPS or Lansky performance score ≥ 70% 7. Cardiac function: Left ventricular ejection fraction of ≥ 50% and shortening fraction of ≥ 27% based on most recent echocardiogram 8. Glomerular Filtration Rate (GFR) of ≥ 60ml/min/1.73m2 measured by nuclear medicine scan or calculated from a 24 hour urine collection 9. Pulmonary function: DLCO corrected for hemoglobin, FEV1, and Forced Vital Capacity (FVC) of ≥50% if able to perform pulmonary function tests. If unable to perform pulmonary function tests, must have a resting pulse oximetry of \>92% without supplemental oxygen. 10. Hepatic: Total bilirubin ≤ 2.5 mg/dL and alanine aminotransferase (ALT), aspartate aminotransferase (AST) \< 3x the upper limit of normal 11. Legal guardian permission must be obtained for subjects \< 18 years of age. Pediatric subjects will be included in age appropriate discussion in order to obtain assent. 12. Subjects ≥ 18 years of age or legally authorized representative must have the ability to give informed consent according to applicable regulatory and local institutional requirements. Donor Inclusion Criteria: 1. Must be unrelated to the subject and high-resolution HLA-matched at 4/8, 5/8, 6/8, or 7/8 (HLA-A, -B, -C, and -DRB1) 2. Donor must be typed at high-resolution for a minimum of HLA-A, -B, -C, -DRB1, -DQB1, and -DPB1 3. Age \> 18 years and \< 35 years at the time of signing informed consent 4. Meet the donor registries' medical suitability requirements for PBSC or BM donation 5. Must undergo eligibility screening according to current Food and Drug Administration (FDA) requirements. Donors who do not meet one or more of the donor screening requirements may donate under urgent medical need. 6. Must agree to donate PBSC (or BM for stratum 3) 7. Must have the ability to give standard (non-study) informed consent according to applicable donor regulatory requirements Recipient Exclusion Criteria (Strata 1, 2 and 3): 1. Suitable HLA-matched related or 8/8 high-resolution matched unrelated donor available 2. Subject unwilling or unable to give informed consent, or unable to comply with the protocol including required follow-up and testing 3. Primary myelofibrosis or myelofibrosis secondary to essential thrombocythemia, polycythemia vera, or MDS with grade 4 marrow fibrosis 4. Subjects with a prior allogeneic HSC transplant 5. Subjects with an autologous HSC transplant within the past 3 months 6. Females who are breast-feeding or pregnant 7. Uncontrolled bacterial, viral or fungal infection at the time of the transplant preparative regimen 8. Concurrent enrollment on other interventional GVHD clinical trial (enrollment on supportive care trials may be allowed after discussion with Principal Investigators) 9. Subjects who undergo desensitization to reduce anti-donor HLA antibody levels prior to transplant. 10. Patients who are HIV+ with persistently positive viral load. HIV-infected patients on effective anti-retroviral therapy with undetectable viral load within 6 months are eligible for this trial. Donor Exclusion Criteria: 1. Donor unwilling or unable to donate 2. Recipient positive anti-donor HLA antibodies against a mismatched HLA in the selected donor determined by the presence of donor specific HLA antibodies (DSA) to any mismatched HLA allele/antigen at any of the following loci (HLA-A, -B, -C, -DRB1, DRB3, DRB4, DRB5, -DQA1, -DQB1, -DPA1, -DPB1) with median fluorescence intensity (MFI) \>3000 by microarray-based single antigen bead testing. In patients receiving red blood cell or platelet transfusions, DSA evaluation must be performed or repeated post-transfusion and prior to donor mobilization and initiation of recipient preparative regimen.27:["$","$L2a",null,{"trial":{"nctId":"NCT04904588","briefTitle":"HLA-Mismatched Unrelated Donor Hematopoietic Cell Transplantation With Post-Transplantation Cyclophosphamide","officialTitle":"A Multi-Center, Phase II Trial of HLA-Mismatched Unrelated Donor Hematopoietic Cell Transplantation With Post-Transplantation Cyclophosphamide for Patients With Hematologic Malignancies","briefSummary":"This is a prospective, multi-center, Phase II study of hematopoietic cell transplantation (HCT) using human leukocyte antigen (HLA)-mismatched unrelated donors (MMUD) for peripheral blood stem cell transplant in adults and bone marrow stem cell transplant in children. Post-transplant cyclophosphamide (PTCy), tacrolimus and mycophenolate mofetil (MMF) will be used for for graft versus host disease (GVHD) prophylaxis. This trial will study how well this treatment works in patients with hematologic malignancies.","detailedDescription":null,"overallStatus":"ACTIVE_NOT_RECRUITING","phase":"PHASE2","studyType":"INTERVENTIONAL","conditions":["Acute Lymphoblastic Leukemia","Acute Myelogenous Leukemia","Mixed Phenotype Acute Leukemia","Acute Leukemia","Myelodysplastic Syndromes","Chronic Myelogenous Leukemia","Chronic Lymphocytic Leukemia","Lymphoma"],"interventions":[{"type":"DRUG","name":"Busulfan","description":"Given IV or PO pre-transplant as part of conditioning regimen"},{"type":"DRUG","name":"Busulfan","description":"Given IV pre-transplant as part of conditioning regimen"},{"type":"DRUG","name":"Fludarabine","description":"Given IV pre-transplant as part of conditioning regimen"},{"type":"RADIATION","name":"Total-body irradiation","description":"Administered pre-transplant as part of conditioning regimen"},{"type":"DRUG","name":"Cyclophosphamide","description":"Given IV pre-transplant as part of conditioning regimen"},{"type":"DRUG","name":"Melphalan","description":"Given IV pre-transplant as part of conditioning regimen"},{"type":"PROCEDURE","name":"PBSC Hematopoietic Stem Cell Transplantation (HSCT)","description":"Peripheral blood stem cell graft is infused from a mismatched unrelated donor on Day 0."},{"type":"PROCEDURE","name":"Bone Marrow Hematopoietic Stem Cell Transplantation","description":"Bone marrow graft is infused from a mismatched unrelated donor on Day 0."},{"type":"DRUG","name":"Post-transplant Cyclophosphamide","description":"Cyclophosphamide (50 mg/kg) is administered on Day +3 and on Day +4 post-transplant as an IV infusion over 1-2 hours."},{"type":"DRUG","name":"Mesna","description":"Mesna is given in divided doses IV 30 min pre- and at 3, 6, and 8 hours post-cyclophosphamide."},{"type":"DRUG","name":"Tacrolimus","description":"Tacrolimus is given at a dose of 0.05 mg/kg PO or an IV dose of 0.03 mg/kg of ideal body weight (IBW) starting on Day +5 post-transplant with taper recommended at 90-100 days post HCT."},{"type":"DRUG","name":"Mycophenolate Mofetil","description":"Mycophenolate mofetil (MMF) is given at a dose of 15 mg/kg three times daily IV or PO from Day +5 to Day +35 post-transplant."},{"type":"OTHER","name":"Patient-Reported Outcomes","description":"Survey assessments will be administered to study participants pre- and post-transplant."}],"keywords":["Lymphoma","Leukemia","Hematologic Diseases","Myelodysplastic Syndromes","Preleukemia","Precursor Cell Lymphoblastic Leukemia-Lymphoma","Leukemia, Lymphocytic, Chronic, B-Cell","Leukemia, Myeloid, Acute","Leukemia, Biphenotypic, Acute","Neoplasms by Histologic Type","Neoplasms","Lymphoproliferative Disorders","Lymphatic Diseases","Immunoproliferative Disorders","Immune System Diseases","Bone Marrow Diseases","Precancerous Conditions","Leukemia, Lymphoid","Leukemia, B-Cell","Leukemia, Myeloid","Cyclophosphamide","Mesna","Tacrolimus","Busulfan","Fludarabine","Total Body Irradiation","Melphalan","Mycophenolate mofetil","Immunosuppressive Agents","Immunologic Factors","Physiological Effects of Drugs","Hematopoietic Stem Cell Transplantation","Unrelated Donors"],"locations":[{"facility":"City of Hope National Medical Center","city":"Duarte","state":"California","country":"United States","zip":"91010","lat":34.13945,"lng":-117.97729},{"facility":"University of California San Francisco","city":"San Francisco","state":"California","country":"United States","zip":"94143","lat":37.77493,"lng":-122.41942},{"facility":"Stanford University","city":"Stanford","state":"California","country":"United States","zip":"94305","lat":37.42411,"lng":-122.16608},{"facility":"Colorado Blood Cancer Institute","city":"Denver","state":"Colorado","country":"United States","zip":"80218","lat":39.73915,"lng":-104.9847},{"facility":"University of Florida Health Shands Hospital","city":"Gainesville","state":"Florida","country":"United States","zip":"32610","lat":29.65163,"lng":-82.32483},{"facility":"University of Miami Sylvester Cancer Center","city":"Miami","state":"Florida","country":"United States","zip":"33136","lat":25.77427,"lng":-80.19366},{"facility":"H. Lee Moffitt Cancer Center and Research Institute","city":"Tampa","state":"Florida","country":"United States","zip":"33612","lat":27.94752,"lng":-82.45843},{"facility":"Children's Healthcare of Atlanta","city":"Atlanta","state":"Georgia","country":"United States","zip":"30322","lat":33.749,"lng":-84.38798},{"facility":"Emory University Medical Center","city":"Atlanta","state":"Georgia","country":"United States","zip":"30322","lat":33.749,"lng":-84.38798},{"facility":"Northwestern University","city":"Chicago","state":"Illinois","country":"United States","zip":"60611","lat":41.85003,"lng":-87.65005},{"facility":"The University of Chicago","city":"Chicago","state":"Illinois","country":"United States","zip":"60637","lat":41.85003,"lng":-87.65005},{"facility":"University of Maryland Medical Center","city":"Baltimore","state":"Maryland","country":"United States","zip":"21201","lat":39.29038,"lng":-76.61219},{"facility":"The Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins","city":"Baltimore","state":"Maryland","country":"United States","zip":"21231","lat":39.29038,"lng":-76.61219},{"facility":"Tufts Medical Center","city":"Boston","state":"Massachusetts","country":"United States","zip":"02111","lat":42.35843,"lng":-71.05977},{"facility":"Dana Farber Cancer Institute","city":"Boston","state":"Massachusetts","country":"United States","zip":"02215","lat":42.35843,"lng":-71.05977},{"facility":"University of Michigan Medical Center - Mott Children's Hospita","city":"Ann Arbor","state":"Michigan","country":"United States","zip":"48109","lat":42.27756,"lng":-83.74088},{"facility":"Karmanos Cancer Institute","city":"Detroit","state":"Michigan","country":"United States","zip":"48201","lat":42.33143,"lng":-83.04575},{"facility":"Mayo Clinic Rochester","city":"Rochester","state":"Minnesota","country":"United States","zip":"55905","lat":44.02163,"lng":-92.4699},{"facility":"Washington University/Barnes Jewish Hospital","city":"St Louis","state":"Missouri","country":"United States","zip":"63110","lat":38.62727,"lng":-90.19789},{"facility":"Roswell Park Comprehensive Cancer Center","city":"Buffalo","state":"New York","country":"United States","zip":"14263","lat":42.88645,"lng":-78.87837},{"facility":"Columbia University Medical Center","city":"New York","state":"New York","country":"United States","zip":"10032","lat":40.71427,"lng":-74.00597},{"facility":"Memorial Sloan Kettering Cancer Center","city":"New York","state":"New York","country":"United States","zip":"10065","lat":40.71427,"lng":-74.00597},{"facility":"University of North Carolina Chapel Hill","city":"Chapel Hill","state":"North Carolina","country":"United States","zip":"27599","lat":35.9132,"lng":-79.05584},{"facility":"Cincinnati Children's Hospital","city":"Cincinnati","state":"Ohio","country":"United States","zip":"45229","lat":39.12711,"lng":-84.51439},{"facility":"Ohio State Medical Center, James Cancer Center","city":"Columbus","state":"Ohio","country":"United States","zip":"43210","lat":39.96118,"lng":-82.99879},{"facility":"Oregon Health and Science University","city":"Portland","state":"Oregon","country":"United States","zip":"97239","lat":45.52345,"lng":-122.67621},{"facility":"University of Pennsylvania","city":"Philadelphia","state":"Pennsylvania","country":"United States","zip":"19104","lat":39.95238,"lng":-75.16362},{"facility":"Thomas Jefferson University Sidney Kimmel Cancer Center","city":"Philadelphia","state":"Pennsylvania","country":"United States","zip":"19107","lat":39.95238,"lng":-75.16362},{"facility":"Medical University of South Carolina","city":"Charleston","state":"South Carolina","country":"United States","zip":"29407","lat":32.77632,"lng":-79.93275},{"facility":"TriStar BMT","city":"Nashville","state":"Tennessee","country":"United States","zip":"37203","lat":36.16589,"lng":-86.78444},{"facility":"TriStar Medical Group Children's Specialists","city":"Nashville","state":"Tennessee","country":"United States","zip":"37203","lat":36.16589,"lng":-86.78444},{"facility":"Vanderbilt University Medical Center","city":"Nashville","state":"Tennessee","country":"United States","zip":"37232","lat":36.16589,"lng":-86.78444},{"facility":"St. David's South Austin Medical Center","city":"Austin","state":"Texas","country":"United States","zip":"78704","lat":30.26715,"lng":-97.74306},{"facility":"-Baylor College of Medicine - 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What this study is about