2021
Polyclonality Strongly Correlates with Biological Outcomes and Is Significantly Increased Following Improvements to the Phase 1/2 HGB-206 Protocol and Manufacturing of LentiGlobin for Sickle Cell Disease (SCD; bb1111) Gene Therapy (GT)
Tisdale J, Thompson A, Mapara M, Kwiatkowski J, Krishnamurti L, Aygun B, Kasow K, Rifkin-Zenenberg S, Schmidt M, Pierciey F, Whitney D, Rogers C, Nnamani M, Foos M, Miller A, Zhang X, Lynch J, Walters M, Kanter J, Bonner M. Polyclonality Strongly Correlates with Biological Outcomes and Is Significantly Increased Following Improvements to the Phase 1/2 HGB-206 Protocol and Manufacturing of LentiGlobin for Sickle Cell Disease (SCD; bb1111) Gene Therapy (GT). Blood 2021, 138: 561. DOI: 10.1182/blood-2021-147760.Peer-Reviewed Original ResearchAcute myeloid leukemiaVaso-occlusive eventsCurrent equity holderSevere vaso-occlusive eventsGroup AGroup CMonth 6Clinical outcomesBluebird BioClinical benefitBusulfan conditioningCell doseRisk of AMLAutologous stem cell transplantTricuspid regurgitant jet velocityAdvisory CommitteeDriver mutationsLentiviral vectorsAML driver mutationsOpioid withdrawal syndromeSerious adverse eventsRegurgitant jet velocityFavorable clinical outcomeConsultancy feesStem cell transplant
2020
Resolution of Serious Vaso-Occlusive Pain Crises and Reduction in Patient-Reported Pain Intensity: Results from the Ongoing Phase 1/2 HGB-206 Group C Study of LentiGlobin for Sickle Cell Disease (bb1111) Gene Therapy
Thompson A, Walters M, Mapara M, Kwiatkowski J, Krishnamurti L, Aygun B, Kasow K, Rifkin-Zenenberg S, Schmidt M, DelCarpini J, Pierciey F, Miller A, Gallagher M, Chen R, Goyal S, Kanter J, Tisdale J. Resolution of Serious Vaso-Occlusive Pain Crises and Reduction in Patient-Reported Pain Intensity: Results from the Ongoing Phase 1/2 HGB-206 Group C Study of LentiGlobin for Sickle Cell Disease (bb1111) Gene Therapy. Blood 2020, 136: 16-17. DOI: 10.1182/blood-2020-134940.Peer-Reviewed Original ResearchAcute chest syndromeVaso-occlusive crisisSickle cell diseaseVaso-occlusive eventsPain intensity scoresGroup C patientsAdverse eventsPain intensityBluebird BioC patientsLast visitBusulfan conditioningHemolysis markersTotal HbIntensity scoresAcute vaso-occlusive painBackground Sickle cell diseasePathophysiology of SCDVaso-occlusive pain crisesPopulation normsPatient-reported pain intensityAdvisory CommitteeGene therapy×109/LAbnormal sickle hemoglobinLentiglobin for Sickle Cell Disease (SCD) Gene Therapy (GT): Updated Results in Group C Patients from the Phase 1/2 Hgb-206 Study
Walters M, Kanter J, Kwiatkowski J, Krishnamurti L, Mapara M, Schmidt M, Miller A, Pierciey F, Bonner M, Huang W, Ribeil J, Thompson A, Tisdale J. Lentiglobin for Sickle Cell Disease (SCD) Gene Therapy (GT): Updated Results in Group C Patients from the Phase 1/2 Hgb-206 Study. Transplantation And Cellular Therapy 2020, 26: s1-s2. DOI: 10.1016/j.bbmt.2019.12.136.Peer-Reviewed Original ResearchPeripheral blood mononuclear cellsGroup C patientsAdverse eventsC patientsMedian HbTotal HbPlerixafor mobilizationNon-hematologic gradeGene therapySerious adverse eventsBlood mononuclear cellsLentiviral vectorsStrong therapeutic benefitFebrile neutropeniaSevere SCDConclusions PatientsGraft failureInitial patientsLast visitMononuclear cellsBusulfan conditioningHemolysis markersAutologous CD34Colony-forming unit assaysTherapeutic benefit
2019
Exploring the Drivers of Potential Clinical Benefit in Initial Patients Treated in the Hgb-206 Study of Lentiglobin for Sickle Cell Disease (SCD) Gene Therapy
Walters M, Tisdale J, Kwiatkowski J, Krishnamurti L, Mapara M, Schmidt M, Miller A, Pierciey F, Huang W, Ribeil J, Kanter J, Thompson A. Exploring the Drivers of Potential Clinical Benefit in Initial Patients Treated in the Hgb-206 Study of Lentiglobin for Sickle Cell Disease (SCD) Gene Therapy. Blood 2019, 134: 2061. DOI: 10.1182/blood-2019-128814.Peer-Reviewed Original ResearchAcute chest syndromeVaso-occlusive crisisGroup A patientsRate of VOCAdverse eventsA patientsPatient 1Group AClinical benefitLast visitBluebird BioHematopoietic stem cellsInitial patientsPatient 2Busulfan conditioningGroup BHbF levelsVeno-occlusive liver diseaseRed blood cell transfusionFull hematological recoveryBlood cell transfusionCases of gradeLentiviral vectorsGene therapyPotential clinical benefitResolution of Sickle Cell Disease Manifestations in Patients Treated with Lentiglobin Gene Therapy: Updated Results from the Phase 1/2 Hgb-206 Group C Study
Kanter J, Tisdale J, Mapara M, Kwiatkowski J, Krishnamurti L, Schmidt M, Miller A, Pierciey F, Huang W, Ribeil J, Thompson A, Walters M. Resolution of Sickle Cell Disease Manifestations in Patients Treated with Lentiglobin Gene Therapy: Updated Results from the Phase 1/2 Hgb-206 Group C Study. Blood 2019, 134: 990. DOI: 10.1182/blood-2019-128894.Peer-Reviewed Original ResearchGroup C patientsRed blood cell transfusionBlood cell transfusionAdverse eventsC patientsMedian Hb levelHb levelsBluebird BioHematopoietic stem cellsCell transfusionLast visitBusulfan conditioningTotal hemoglobinHSC collectionGene therapyNon-hematologic gradeSerious adverse eventsLentiviral vectorsSickle cell diseaseStrong therapeutic effectVector copy numberCancer Research CenterAdditional patient dataAdvisory CommitteeSevere SCDLentiglobin Gene Therapy in Patients with Sickle Cell Disease: Updated Interim Results from Hgb-206
Mapara M, Tisdale J, Kanter J, Kwiatkowski J, Krishnamurti L, Schmidt M, Miller A, Pierciey F, Shi W, Ribeil J, Asmal M, Thompson A, Walters M. Lentiglobin Gene Therapy in Patients with Sickle Cell Disease: Updated Interim Results from Hgb-206. Transplantation And Cellular Therapy 2019, 25: s64-s65. DOI: 10.1016/j.bbmt.2018.12.147.Peer-Reviewed Original ResearchSickle cell diseaseGrade 3 adverse eventsAdverse eventsHematopoietic stem cellsGrp BC patientsCell diseaseSevere sickle cell diseaseGene therapyNon-hematologic gradeVaso-occlusive painPhase 1 studyLentiviral vectorsAutologous hematopoietic stem cellsGrp CFebrile neutropeniaMyeloablative conditioningClinical effectsHb levelsLast visitBusulfan conditioningAutologous CD34Treatment characteristicsMethods AdultsPatients
2018
Outcomes for Initial Patient Cohorts with up to 33 Months of Follow-up in the Hgb-206 Phase 1 Trial
Kanter J, Tisdale J, Kwiatkowski J, Krishnamurti L, Mapara M, Schmidt M, Miller A, Pierciey F, Shi W, Ribeil J, Walters M, Thompson A. Outcomes for Initial Patient Cohorts with up to 33 Months of Follow-up in the Hgb-206 Phase 1 Trial. Blood 2018, 132: 1080. DOI: 10.1182/blood-2018-99-113477.Peer-Reviewed Original ResearchSevere sickle cell diseaseGroup B patientsSickle cell diseaseGroup A patientsB patientsAdverse eventsGroup ALast visitTotal bilirubinBluebird BioHematopoietic stem cellsA patientsPeripheral bloodBusulfan conditioningReticulocyte countTotal HbVeno-occlusive liver diseaseAdvisory CommitteeMedical directorsNormalization of HbVaso-occlusive painSerious adverse eventsLong-term followPhase 1 trialSignificant clinical benefit