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Recruiting Phase 1, Phase 2 NCT05589896

NCT05589896 A First-in-Human Study of HLA-Partially to Fully Matched Allogenic Cryopreserved Deceased Donor Bone Marrow Transplantation for Patients With Hematologic Malignancies

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Clinical Trial Summary
NCT ID NCT05589896
Status Recruiting
Phase Phase 1, Phase 2
Sponsor Ossium Health, Inc.
Condition Acute Leukemia
Study Type INTERVENTIONAL
Enrollment 12 participants
Start Date 2024-08-16
Primary Completion 2026-05-31

Eligibility & Interventions

Sex All sexes
Min Age 18 Years
Max Age 75 Years
Study Type INTERVENTIONAL
Interventions
Ossium HPC Marrow, Bone Marrow TransplantPre-transplant conditioning - Myeloablative (MAC)Pre-transplant conditioning - Reduced Intensity (RIC)

Eligibility Fast-Check

Enter your details for a quick preliminary check. This does not replace medical advice.

What to Expect as a Participant

You will actively receive the study intervention — which may be a drug, biologic, device, or procedure.

Phase 1 is the earliest stage of human testing — safety and dosage are the primary focus. Visits are frequent and medical supervision is intensive. You will be among the first people to receive this treatment.

This trial targets 12 participants in total. It began in 2024-08-16 with a primary completion date of 2026-05-31.

⚠ This information is for research awareness only. Always consult your physician before joining any clinical trial. Participation is voluntary and you may withdraw at any time.

Brief 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.

Eligibility Criteria

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

Contact & Investigator

Central Contact

Preethi Prasad, M.Sc.

✉ preethi.prasad@ossiumhealth.com

📞 628-842-6562

Frequently Asked Questions

Who can join the NCT05589896 clinical trial?

This trial is open to participants of all sexes, aged 18 Years or older, up to 75 Years, studying Acute Leukemia. Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.

What phase is the NCT05589896 trial and what does that mean for participants?

Phase 1 trials are the first stage of human testing. The primary goal is to assess safety and determine appropriate dosage levels. Participants are closely monitored. These trials typically involve a small number of volunteers.

Is NCT05589896 currently recruiting?

Yes, NCT05589896 is actively recruiting participants. Contact the research team at preethi.prasad@ossiumhealth.com for enrollment information.

Where is the NCT05589896 trial being conducted?

This trial is being conducted at Duarte, United States, Tampa, United States, Atlanta, United States, Detroit, United States and 5 additional locations.

Who is sponsoring the NCT05589896 clinical trial?

NCT05589896 is sponsored by Ossium Health, Inc.. The trial plans to enroll 12 participants.

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ClinicalMetric — Independent clinical trial intelligence platform. Not affiliated with NIH, ClinicalTrials.gov, the U.S. FDA, or any pharmaceutical company, hospital, or clinical research organization. Trial data is sourced from ClinicalTrials.gov for informational purposes only and does not constitute medical advice. Do not make any treatment, enrollment, or health decisions based solely on information found here — always consult a qualified healthcare professional. Full Disclaimer  ·  Last Reviewed: April 2026  ·  Data Methodology