A First-in-Human Study of HLA-Partially to Fully Matched Allogenic Cryopreserved Deceased Donor Bone Marrow Transplantation for Patients With Hematologic Malignancies

NCT05589896 — Phase 1 / Phase 2, Active not recruiting, 12 participants, Ossium Health, Inc.

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RegistryNCT05589896
StatusActive not recruiting
PhasePhase 1 / Phase 2
Study typeInterventional; non randomized, sequential, masking: none, treatment
Enrollment12 (Estimated)
SponsorOssium Health, Inc. (Industry)
ConditionsAcute Leukemia, Acute Lymphoblastic Leukemia, Acute Myeloid Leukemia, Acute Biphenotypic Leukemia, Acute Undifferentiated Leukemia, CLL (Chronic Lymphocytic Leukemia), Chronic Myeloid Leukemia (CML), MDS (Myelodysplastic Syndrome), Non-Hodgkin Lymphomas, Hodgkins Lymphoma, Cutaneous T Cell Lymphomas (CTCL)
InterventionsOssium HPC Marrow, Bone Marrow Transplant, Pre-transplant conditioning - Myeloablative (MAC), Pre-transplant conditioning - Reduced Intensity (RIC), Post-transplant treatment (Other)
Datesstart 2024-08-16, primary completion 2026-07-14, completion 2029-05-31 (estimated), first posted 2022-10-21, last updated 2026-09-10
Locations9 sites in United States

Related Papers Related Patents Related Grants Related Experts
All trials for Acute Leukemia All trials for Acute Lymphoblastic Leukemia All trials of Ossium HPC Marrow, Bone Marrow Transplant All trials of Pre-transplant conditioning - Myeloablative (MAC)

-Summary

The goal of this clinical trial is to determine the safety and feasibility of allogeneic transplantation with bone marrow from a deceased donor in patients with acute and chronic leukemias, myelodysplastic syndrome, and certain lymphomas. Patients will either receive myeloablative conditioning or reduced intensity conditioning regimen prior to the transplant. Patients will be followed for 56 days for safety endpoints and remain in follow-up for one year.

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+Arms and interventions

ArmTypeInterventionsDescription
Cohort 1ExperimentalOther: Ossium HPC Marrow, Bone Marrow Transplant; Other: Pre-transplant conditioning - Myeloablative (MAC); Other: Pre-transplant conditioning - Reduced Intensity (RIC); Other: Post-transplant treatmentBone Marrow Transplant with Ossium HPC, Marrow Pre-transplant myeloablative conditioning treatment with: Regimen A(MAC): Busulfan and Fludarabine \[OR\] Regimen B(MAC): Fludarabine and Total Body Irradiation \[OR\] Regimen C(RIC): Fludarabine, Cyclophosphamide, and Total Body Irradiation \[OR\] Regimen D (RIC): Fludarabine, Melphalan, and Total Body Irradiation Post-Transplant treatment with Cyclophosphamide, Tacrolimus, Mycophenolate Mofetil, and Filgrastim
Cohort 2ExperimentalOther: Ossium HPC Marrow, Bone Marrow Transplant; Other: Pre-transplant conditioning - Myeloablative (MAC); Other: Pre-transplant conditioning - Reduced Intensity (RIC); Other: Post-transplant treatment*Open to enrollment after DSMB review of Cohort 1 safety events through Day 56* Bone Marrow Transplant with Ossium HPC, Marrow Pre-transplant conditioning treatment with: Regimen A(MAC): Busulfan and Fludarabine \[OR\] Regimen B(MAC): Fludarabine and Total Body Irradiation \[OR\] Regimen C(RIC): Fludarabine, Cyclophosphamide, and Total Body Irradiation \[OR\] Regimen D(RIC): Fludarabine, Melphalan, and Total Body Irradiation Post-Transplant treatment with Cyclophosphamide, Tacrolimus, Mycophenolate Mofetil, and Filgrastim
  • Ossium HPC Marrow, Bone Marrow Transplant (Other): Hematopoetic Cell Transplantation
  • Pre-transplant conditioning - Myeloablative (MAC) (Other), also known as Busuflex, Fludara, TBI: Regimen A or Regimen B
  • Pre-transplant conditioning - Reduced Intensity (RIC) (Other), also known as Fludara, Cytoxan, Mesnex, TBI, Melphalan: Regimen C or Regimen D
  • Post-transplant treatment (Other), also known as Cytoxan, Mesnex, CellCept, Filgrastim: Post-transplant treatment

+Outcome measures

Primary outcomes

  • Neutrophil Engraftment [Day 28]: Neutrophil engraftment is defined as achieving an absolute neutrophil count (ANC) of greater than or equal to 500/µL for 3 consecutive measurements on 3 different days by Day 28.
  • Serious Adverse Events [Day 56]: Occurrence of any event classified as SAE. The time of occurrence of each serious adverse event will be recorded.
  • CTCAE Grade 3/4 Adverse Events (AEs) [Day 56]: Occurrence of any event classified as grade 3/4 AE attributed to Ossium HPC, Marrow per the CTCAE v5.0 guidelines. The time of the occurrence of each event will be recorded.
  • CTCAE Grade 3/4 Adverse Events (AEs) attributed to infusion of Ossium HPC, Marrow [Day 28]: Occurrence of any event classified as grade 3 or higher attributed to Ossium HPC, Marrow infusion per the CTCAE v5.0 guidelines. The time of the occurrence will be recorded.
  • Death [Day 56]: The time of death will be recorded for each expired patient.

Secondary outcomes

  • Cumulative incidences of neutrophil engraftment [Day 28]: Neutrophil engraftment in defined as achieving an absolute neutrophil count (ANC) of greater than or equal to 500/µL for 3 consecutive measurements on different days by Day 28.
  • Cumulative incidences of platelet recovery [Day 56]: Platelet recovery is defined as platelets greater than or equal to 20,000/µL for 3 consecutive days in the absence of transfusion for 7 consecutive days by Day 56.
  • Cumulative incidence of disease relapses [Day 365]: The cumulative incidence of relapse is measured from the date of transplant (Day 0) until the date of relapse or progression; patients not known to have relapsed are censored on the date they were last examined; patients who died without relapse are counted as a competing cause of failure.
  • Transplant-related mortality (TRM) [Day 100 and Day 365]: TRM is defined as death without evidence of disease progression or recurrence.
  • Cumulative incidences of acute (aGVHD) Graft Versus Host Disease [Day 100, Day 180, and Day 365]: aGVHD is defined as any skin, gastrointestinal or liver abnormalities fulfilling the criteria of grades II-IV or grades III-IV.
  • Cumulative incidences of chronic (cGVHD) Graft Versus Host Disease [Day 100, Day 180, and Day 365]: cGVHD is defined per National Institutes of Health (NIH) Consensus Criteria and includes organ involvement and severity, and overall global composite score (mild/moderate/severe).
  • Incidence of clinically-significant infections [Day 100 and Day 365]: A clinically significant infection is defined as any microbiologic or radiographic infection for which antimicrobial therapy was administered.

Other outcomes

  • Length of Stay in Hospital [Day 100 and Day 365]: Cumulative days alive and out of the hospital in the first 100 days and in the first year post-transplant.
  • Time to provide Ossium product to the patient from product availability request [Day 365]: Time from preliminary search to find a donor match in the Ossium registry and the time to provide Ossium HPC, Marrow product to recipient (time from donor availability request to delivery of product to transplant center).

+Eligibility

Sex: All, ages: 18 Years to 75 Years

Inclusion Criteria:

* Patient has the ability to provide informed consent according to the applicable regulatory and local institutional requirements
* Male or female, aged ≥18 and ≤65 years for patients receiving MAC (Regimen A or Regimen B); aged ≥18 and ≤75 years for patients receiving RIC (Regimen C or D)
* Patient must require allogeneic HCT per the discretion of the treating physician
* Patient must be high-resolution, HLA partially or fully matched (4-8/8 allele matched at HLA-A, -B, -C, DRB1) to an available Ossium HPC, Marrow product
* Stated willingness to comply with all study procedures and availability for the duration of the study
* Diagnosed with malignant hematologic disease including:

  1. Acute leukemia \[acute lymphoblastic leukemia (ALL), acute myeloid leukemia (AML), acute biophenotypic leukemia (ABL), or acute undifferentiated leukemia (AUL)\], MDS without fibrosis, or chronic leukemia (CLL, CML) in the first remission or beyond with ≤5% marrow blasts documented by bone marrow assessment and no circulating blasts or extra-medullary disease within 42 days prior to anticipated start of conditioning
  2. Chemosensitive non-Hodgkin's lymphomas, Hodgkin's lymphoma, or cutaneous T cell lymphomas in the first remission or beyond documented by PET/CT imaging and bone marrow assessment within 42 days prior to anticipated start of conditioning
* Karnofsky performance status score ≥70% (MAC) or ≥60% (RIC)
* HCT comorbidity index (HCT-CI) ≤5
* Adequate organ function defined as:

  1. Cardiac: LVEF at rest ≥40% (RIC) or LVEF at rest ≥45% (MAC)
  2. Pulmonary: DLCO, FEV1, FVC ≥50% predicted by pulmonary function tests (PFTs). DLCO value may be corrected for hemoglobin.
  3. Hepatic: total bilirubin ≤2.0 mg/dL, and ALT, AST, and ALP <3 x upper limit normal (ULN), unless ALT, AST, and/or ALP are disease related
  4. Renal: SCr within 1.5x normal range for age. If SCr is outside normal range for age, CrCl> 60 mL/min/1.73m2 must be obtained (measured by 24-hour urine specimen or nuclear glomerular filtration rate (GFR), or calculated GFR)

Exclusion Criteria:

* Availability of suitable graft from living donor (defined as 7/8 or 8/8 HLA-matched related or unrelated donors, haploidentical donors, or cord blood donors)
* Prior autologous or allogeneic HCT
* Pregnancy or lactation
* Ongoing treatment with an investigational drug used for disease-related treatment within 5 half-lives of the drug
* Current uncontrolled bacterial, viral or fungal infection defined as currently taking medication with evidence of progression of clinical symptoms or radiologic findings
* Any condition(s) or diagnosis, both physical or psychological, or physical exam finding that in the investigator's opinion precludes participation

+Locations (9)

FacilityCityCountryStatus
City of HopeDuarte, CaliforniaUnited States
Moffitt Cancer CenterTampa, FloridaUnited States
Emory University - Winship Cancer InstituteAtlanta, GeorgiaUnited States
Henry Ford Cancer InstituteDetroit, MichiganUnited States
Oregon Health and Science UniversityPortland, OregonUnited States
TriStar Bone Marrow TransplantNashville, TennesseeUnited States
St. David's South Austin Medical CenterAustin, TexasUnited States
Methodist Hospital, Texas TransplantSan Antonio, TexasUnited States
University of Utah - Huntsman Cancer InstituteSalt Lake City, UtahUnited States