2024
Randomized Phase III SIERRA Trial of 131I-Apamistamab Before Allogeneic Hematopoietic Cell Transplantation Versus Conventional Care for Relapsed/Refractory AML.
Gyurkocza B, Nath R, Seropian S, Choe H, Litzow M, Abboud C, Koshy N, Stiff P, Tomlinson B, Abhyankar S, Foran J, Hari P, Chen G, Al-Kadhimi Z, Kebriaei P, Sabloff M, Orozco J, Jamieson K, Silverman M, Van Besien K, Schuster M, Law A, Larkin K, Pandit-Taskar N, Rowley S, Munshi P, Cook R, Levy M, Lazarus H, Sandmaier B, Pagel J, Reddy V, MacDougall J, McNamara K, Spross J, Haeuber E, Vusirikala M, Nahar A, Desai A, Giralt S. Randomized Phase III SIERRA Trial of 131I-Apamistamab Before Allogeneic Hematopoietic Cell Transplantation Versus Conventional Care for Relapsed/Refractory AML. Journal Of Clinical Oncology 2024, jco2302018. PMID: 39298738, DOI: 10.1200/jco.23.02018.Peer-Reviewed Original ResearchEvent-free survivalIntention-to-treat populationIntention-to-treatHazard ratioRR-AMLOverall survivalOlder patientsPhase III open-label trialEvent-free survival HRTreatment-related adverse eventsAllogeneic hematopoietic cell transplantationConventional careIncomplete platelet recoveryOS hazard ratioSecondary end pointsHematopoietic cell transplantationOpen-label trialConventional care groupPretransplant regimenRefractory AMLRelapsed/refractory AMLChemotherapy initiationDismal prognosisPlatelet recoveryCell transplantation
2023
131I-Apamistamab-Led Allogeneic Hematopoietic Cell Transplant Significantly Improves Overall Survival in Patients with TP53 Mutated R/R AML
Choe H, Tomlinson B, Gyurkocza B, Nath R, Seropian S, Litzow M, Abboud C, Stiff P, Abhyankar S, Foran J, Abedin S, Chen G, Al-Kadhimi Z, Kebriaei P, Sabloff M, Orozco J, Jamieson K, Magalhaes-Silverman M, Van Besien K, Schuster M, Law A, Mayer S, Lazarus H, Spross J, Li K, Haeuber E, Vusirikala M, Nahar A, Sandmaier B, Pagel J, Giralt S, Desai A, Koshy N. 131I-Apamistamab-Led Allogeneic Hematopoietic Cell Transplant Significantly Improves Overall Survival in Patients with TP53 Mutated R/R AML. Blood 2023, 142: 469. DOI: 10.1182/blood-2023-182177.Peer-Reviewed Original ResearchMedian overall survivalAllogeneic hematopoietic cell transplantDurable complete remissionHematopoietic cell transplantOverall survivalR AMLConventional careTP53 mutationsPositive ptsCC groupComplete remissionRelapse rateCell transplantHigh post-transplant relapse ratesInitiation of therapyPhase 3 studyTotal body irradiationHigh relapse rateCRP assessmentEvaluable ptsOlder ptsActive diseaseBaseline characteristicsRefractory AMLBody irradiationHigh-Dose Targeted Radiation with 131I-Apamistamab Prior to HCT Demonstrated a Dose-Response for Durable Complete Remission in Patients with R/R AML
Litzow M, Chen G, Gyurkocza B, Nath R, Seropian S, Choe H, Abboud C, Koshy N, Tomlinson B, Abhyankar S, Foran J, Abedin S, Al-Kadhimi Z, Kebriaei P, Sabloff M, Orozco J, Jamieson K, Magalhaes-Silverman M, Van Besien K, Schuster M, Law A, Mayer S, Lazarus H, Leung E, Chen M, Natwa M, Spross J, Li K, Nagl N, Haeuber E, Vusirikala M, Nahar A, Sandmaier B, Pagel J, Giralt S, Desai A, Wahl R, Pandit-Taskar N, Brodin P, Stiff P. High-Dose Targeted Radiation with 131I-Apamistamab Prior to HCT Demonstrated a Dose-Response for Durable Complete Remission in Patients with R/R AML. Blood 2023, 142: 3529. DOI: 10.1182/blood-2023-189040.Peer-Reviewed Original ResearchDurable complete remissionConventional careLiver dosePrimary endpointBone marrowR AMLComplete remissionLiver ratioHigh doseLeukemic cellsRadiation doseAllogeneic hematopoietic cell transplantRadiation dose-response relationshipHematopoietic cell transplantMost older patientsPhase 3 studyTotal body irradiationFavorable biodistributionRadiation dose toleranceYears of ageDose toleranceDose-response relationshipDiseased bone marrowMedian doseRefractory AML
2020
AML-123: Targeted Conditioning with Anti-CD45 Iodine (131I) Apamistamab [Iomab-B] Leads to High Rates of Transplantation and Engraftment in Older Patients with Active, Relapsed, or Refractory (rel/ref) AML: Preliminary Midpoint Results from the Prospective, Randomized Phase 3 SIERRA Trial
Gyurkocza B, Nath R, Stiff P, Agura E, Litzow M, Tomlinson B, Choe H, Abhyankar S, Seropian S, Chen G, Hari P, Al-Kadhimi Z, Foran J, Orozco J, Van Besien K, Sabloff M, Kebriaei P, Abboud C, Levy M, Lazarus H, Giralt S, Berger M, Reddy V, Pagel J. AML-123: Targeted Conditioning with Anti-CD45 Iodine (131I) Apamistamab [Iomab-B] Leads to High Rates of Transplantation and Engraftment in Older Patients with Active, Relapsed, or Refractory (rel/ref) AML: Preliminary Midpoint Results from the Prospective, Randomized Phase 3 SIERRA Trial. Clinical Lymphoma Myeloma & Leukemia 2020, 20: s182. DOI: 10.1016/s2152-2650(20)30716-3.Peer-Reviewed Original ResearchCC armOlder patientsTransplant ratesLower transplant-related mortalityIncidence of gradeNon-relapse mortalityTransplant-related mortalityMajority of patientsFavorable safety profileFebrile neutropeniaInduction therapyPrior therapyActive diseaseRefractory AMLSalvage therapyDurable responsesGraft failureInfusion reactionsEngraftment dataMedian ageSafety profilePatient populationAdvanced ageDisease progressionGrade 3Targeted Conditioning with Anti-CD45 Iodine (131I) Apamistamab [Iomab-B] Leads to High Rates of Allogeneic Transplantation and Successful Engraftment in Older Patients with Active, Relapsed or Refractory (rel/ref) AML after Failure of Chemotherapy and Targeted Agents: Preliminary Midpoint Results from the Prospective, Randomized Phase 3 Sierra Trial
Gyurkocza B, Nath R, Stiff P, Agura E, Litzow M, Tomlinson B, Choe H, Abhyankar S, Seropian S, Chen G, Hari P, Al-Kadhimi Z, Foran J, Orozco J, van Besien K, Sabloff M, Kebriaei P, Abboud C, Levy M, Lazarus H, Giralt S, Berger M, Reddy V, Pagel J. Targeted Conditioning with Anti-CD45 Iodine (131I) Apamistamab [Iomab-B] Leads to High Rates of Allogeneic Transplantation and Successful Engraftment in Older Patients with Active, Relapsed or Refractory (rel/ref) AML after Failure of Chemotherapy and Targeted Agents: Preliminary Midpoint Results from the Prospective, Randomized Phase 3 Sierra Trial. Transplantation And Cellular Therapy 2020, 26: s32-s33. DOI: 10.1016/j.bbmt.2019.12.575.Peer-Reviewed Original ResearchHematopoietic cell transplantationSalvage therapyOlder patientsCC armConventional careCC patientsConventional hematopoietic cell transplantationGrade 3 febrile neutropeniaAllogeneic hematopoietic cell transplantationPre-treated patientsPhase 3 trialFailure of chemotherapyYears of ageFebrile neutropeniaInduction therapyActive diseaseMyeloablative conditioningRefractory AMLBackground PatientsBM blastsInfusion reactionsMethods PatientsTransplant candidatesAllogeneic transplantationCurative therapy