Hypoxic Red Blood Cells for Burns and Hematological Malignancies at Haukeland University Hospital

The primary objective is to assess hypoxic RBCs safety and tolerance assessment up to 24 hours following the transfusion initiation and overall up to 7 days (+/- 1 day) after the transfusion episode (single transfusion course).

Secondary objectives include the following.

• Assessment of pre and post transfusion hemoglobin levels
• Assessment of hemoglobin level before the following transfusion, if applicable
• Assessment of AEs occurrence:

i. Up to 7 days (+/- 1 day) post transfusion, in comparison with historical control (including but not limited to infection, deep vein thrombosis, acute respiratory distress syndrome, transfusion-related acute lung injury, transfusion associated circulatory overload, anaphylactic shock, acute hemolytic transfusion reaction).

ii. Up to the subsequent transfusion episode or up to 28 days (+/- 1 day) after the initial transfusion, whichever comes first.

iii. From enrollment, up to their subsequent transfusion or 28 days (+/- 1 day) post transfusion, whichever comes first, through the assessment of patient's diary.

• Assessment of the vital signs during and up to 15 minutes after the transfusion.

Inclusion criteria

A. Hematological malignancies patients group:

• Male or female patients at least 18 years of age
• Patients expected to require > 2 units of red blood cells in a single transfusion event
• Patients who have the capacity to consent to participate and are willing to comply with the study procedures.
• Patients identified by a Transfusion hemoglobin trigger of less than 9 g/dL
• Patients with a documented diagnosis of leukemia, myelomatosis or MDS requiring chronic transfusions

B. Burn patients group:

• Male or female patients at least 18 years of age
• Patients who have the capacity to consent by themselves to participate to the clinical investigation
• Smaller burn patients, hospitalized with a Total Body Surface Area (TBSA%) burn ≥ 10% and ≤ 50%
• Patients expected to require > 2 unit of red blood cells in a single transfusion event

Exclusion criteria

A. Both patients groups

• Patients with any positive antibody screening test
• Patients for whom consent has not been obtained
• Patients with a known hemolytic anemia (congenital or acquired)
• Patients < 18 years old
• Patients with a known or suspected pregnancy
• Patients with a history of major transfusion reactions
• Patients whom the Investigator deems clinical trial participation is not in their best interest.

B. Burn patients specific exclusion criteria :

• Patients who do not have the capacity to consent by themselves to participate to the clinical investigation
• Patients hospitalized with a Total body surface area (TBSA%) burn more than 50%
• Patients with combined trauma in need of blood transfusions for treatment other than the burn excision