Expanded Cord Blood in Patients in Need of an Allogeneic Stem Cell Transplant
Hematologic Malignancy
About this trial
This is an interventional treatment trial for Hematologic Malignancy
Eligibility Criteria
Inclusion
- 3-64 years old (Pediatric patients will become eligible only after 5 adult patients have been enrolled in the study and received the UM171 expanded product).
- Weight ≥ 12kg
- Underlying hematologic malignancy excluding primary myelofibrosis requiring an unrelated donor allogeneic HSC transplant (as defined by the transplant center) but patient lacks an 8/8 HLA identical donor or disease requires an urgent transplant and cannot wait the required time to identify an unrelated donor.
Availability of at least 3 cord bloods with HLA match ≥ 4/6 and ≥4/8 and meeting the following requirements:
- CB to be expanded: CD34+ cell count 1.0-4.9 x 10E5/kg for cohort 1, 0.5-4.9 x 10E5/kg for cohort 2, and 0.25-4.9 x 10E5/kg for cohort 3; nucleated cell count ≥ 2.0 x 10E7/kg for cohort 1, ≥ 1.5 x 10E7/kg for cohort 2, and ≥ 1.25 x 10E7/kg for cohort 3.
- Non expanded cord: TNC count ≥ 2.0 x 10E7/kg with CD34 min of 1 x 10E5/kg or minimum of 1.5 x 10E7 TNC/kg with 1.8 x 10E5 CD34+ cells/kg.
- Back up cord: TNC count ≥ 1.5 x 10E7/kg with CD34 min of 1 x 10E5/kg
- Left ventricular ejection fraction > 40%.
- Karnofsky score ≥ 70%
- Forced vital capacity (FVC), forced expiratory volume in 1 second (FEV1) and diffusing capacity corrected for hemoglobin (DLCOc) ≥ 50% of predicted
- Bilirubin < 2 x upper limit of normal (ULN) unless felt to be related to Gilbert's disease or hemolysis; AST (aspartate aminotransferase) and ALT (alanine aminotransférase) ≤ 2.5 x ULN; alkaline phosphatase ≤ 5 x ULN.
- Measured or estimated creatinine clearance ≥ 60 ml/min/1.73m2.
Exclusion
- Myeloablative transplant within 24 months.
- Uncontrolled infection.
- Presence of a malignancy other than the one for which the UCB transplant is being performed and the expected survival related to the malignancy is estimated to be less than 75% at 5 years.
- HIV positivity.
- Hepatitis B or C infection with measurable viral load.
- Liver cirrhosis.
- Availability of a cord with ≥ 5 x 105/kg CD34+ cells.
- Pregnancy, breastfeeding or unwillingness to use appropriate contraception.
- Participation in a trial with an investigational agent within 30 days prior to entry in the study.
- Patient unable to give informed consent or unable to comply with the treatment protocol including appropriate supportive care, follow-up, and tests.
- Any abnormal condition or laboratory result that is considered by the principal investigator capable of altering patient condition or study outcome.
Sites / Locations
- Hopital Maisonneuve-Rosemont
Arms of the Study
Arm 1
Arm 2
Arm 3
Experimental
Experimental
Experimental
Cohort 1
Cohort 2
Cohort 3
Intervention name: Transplantation of cord blood expanded with UM171 Prethaw CB cell count prior to manipulation: CD34+ cell count 1.0-4.9 x 10E5/kg and TNC superior or equal to 2.0 x 10E7/kg
Intervention name: Transplantation of cord blood expanded with UM171 Prethaw CB cell count prior to manipulation: CD34+ cell count 0.5-4.9 x 10E5/kg and TNC superior or equal to 1.5 x 10E7/kg
Intervention name: Transplantation of cord blood expanded with UM171 Prethaw CB cell count prior to manipulation: CD34+ cell count 0.25-4.9 x 10E5/kg and TNC superior or equal to 1.25 x 10E7/kg