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

A Single Center, Pilot Clinical Investigation of Surgical Bleeding in Burn Patients, and Chronically Transfused Patients With Haematologic Malignancies, Who Are Transfused With Hypoxic Red Blood Cells Manufactured With Hemanext ONE System

The overall objective of this study is to collect preliminary safety data on the transfusion of hypoxic RBCs, manufactured with the Hemanext ONE device, in patients with burns and patients with hematological malignancies. The Hemanext ONE device received CE mark in April 2021.

Study Overview

• Status: Completed
• Conditions: Burns; Hematologic Neoplasms
• Intervention / Treatment: Device: Hypoxic Red Blood Cells

Detailed Description

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.

1. Assessment of pre and post transfusion hemoglobin levels
2. Assessment of hemoglobin level before the following transfusion, if applicable

3. 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.

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

• Study Type: Observational
• Enrollment (Actual): 22

Contacts and Locations

Study Locations

• Norway
  • Bergen, Norway, 5021
    • Haukeland University Hospital

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No

• Sampling Method: Non-Probability Sample

Study Population

10 acute burn patients and 10 patients with hematological malignancies, who require transfusion of red cells concentrates and who fulfill all eligibility criteria will be enrolled in this clinical investigation at Haukeland University Hospital.

Description

Inclusion Criteria:

A. Hematological malignancies patients group:

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

B. Burn patients group:

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

Exclusion Criteria:

A. Both patients groups

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

B. Burn patients specific exclusion criteria :

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

Study Plan

How is the study designed?

Design Details

• Observational Models: Cohort
• Time Perspectives: Prospective

Number of groups / cohorts

2

Cohorts and Interventions

Group / Cohort	Intervention / Treatment
Hematologic Malignancies; Subjects requiring chronic transfusions with red blood cells for treatment of a hematologic malignancy will receive 1 transfusion with 2 units of hypoxic red blood cells manufactured with the Hemanext ONE device. The subjects will be monitored for all adverse events from Informed Consent through Day 28 or the subsequent standard of care transfusion, whichever occurs first.	Device: Hypoxic Red Blood Cells; Hypoxic Red Blood Cells manufactured with the Hemanext ONE device- CPD/PAGGSM Red Blood Cells, Leukocytes Reduced, and O2/CO2 Reduced
Acute Burn; Subjects requiring transfusion with red blood cells during the excision procedure after an acute burn will receive 2 units of hypoxic red blood cells manufactured with the Hemanext ONE device. As the excision treatments require transfusion of more than 2 units of red blood cells, the first 2 units transfused during the procedure will be hypoxic red blood cells. The subjects will be monitored for all adverse events through Day 28.	Device: Hypoxic Red Blood Cells; Hypoxic Red Blood Cells manufactured with the Hemanext ONE device- CPD/PAGGSM Red Blood Cells, Leukocytes Reduced, and O2/CO2 Reduced

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Number of Participants Who Experienced an Adverse Event (All Types/Grades) Within a Time Frame up to 24 Hours Following the Transfusion.	The type and the grade of each adverse event will be categorized according to: Association for the Advancement of Blood and Biotherapies (AABB) technical manual, 20th edition (2020); Biomedical Excellence for Safer Transfusion (BEST) Collaborative review - Lancet 2016; 388: 2825-36; Local AEs database (for reference); ISO 14155-2020 definitions	24 hours
Number of Participants Who Experienced an Adverse Event (AE) (All Types/Grades) Overall up to 7 Days (+/-1 Day) After the Transfusion.	The type and the grade of each adverse event will be categorized according to: Association for the Advancement of Blood and Biotherapies (AABB) technical manual, 20th edition (2020); Biomedical Excellence for Safer Transfusion (BEST) Collaborative review - Lancet 2016; 388: 2825-36; Local AEs database (for reference); ISO 14155-2020 definitions	7 days (+/-1 day)

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Calculation of the Hemoglobin Increment After Transfusion Corrected for Patient Blood Volume and Hemoglobin Dose	The hemoglobin increment from each transfusion will be determined by calculating the difference between the subject's post-transfusion and pre-transfusion hemoglobin (g/dL). It will then be corrected for estimated subject blood volume and the amount of Hb transfused. The following equation used for the hemoglobin increment calculation: HgB Increment = (Subject's HgB level post-transfusion - Subject's HgB pre-transfusion)/ (total HgB transfused x Subject's BloodVolume) Equations for calculating the hemoglobin increment may be found in the following publication: Wendelbo Ø, Opheim EN, Hervig T, Felli Lunde TH, Bruserud Ø, Mollnes TE, Reikvam H. Cytokine profiling and post-transfusion haemoglobin increment in patients with haematological diseases. Vox Sang. 2018 Oct;113(7):657-668. doi: 10.1111/vox.12703. Epub 2018 Aug 29. PMID: 30159896.	28 days
Evolution of the Hemoglobin Level Before and After the Transfusion.	The difference in measured hemoglobin (grams/dL) between pre-transfusion and up to 30 minutes post-transfusion.	pre-transfusion to up to 30 minutes post-transfusion
Comparison of the Hemoglobin Level Before the Index Transfusion to That Prior to the Subsequent Transfusion	The difference in measured hemoglobin (grams/dL) between the pre-transfusion hemoglobin level for the study transfusion and the pre-transfusion hemoglobin level for the next scheduled transfusion.	28 days
Evaluation of AEs From Enrollment, up to Prior to the Subsequent Transfusion or up to Day 28, Whichever Occurs First	Number of AEs that occur from enrollment, up to prior to the subsequent transfusion or up to Day 28, whichever occurs first	28 days
Evaluation of Subject's Blood Pressure Over the Course of the Transfusion and up to 15 Minutes Post-transfusion	Change in blood pressure (systolic; mmHg) from baseline up to 15 minutes post-transfusion.	baseline up to 15 minutes post-transfusion.
Evaluation of Subject's Blood Pressure Over the Course of the Transfusion and up to 15 Minutes Post-transfusion	Change in blood pressure (diastolic; mmHg) from baseline up to 15 minutes post-transfusion.	baseline up to 15 minutes post-transfusion.
Evaluation of Subject's Respiratory Rate Over the Course of the Transfusion and up to 15 Minutes Post-transfusion	Change in respiratory rate (breaths per minute) from baseline to up to 15 minutes post-transfusion.	baseline to up to 15 minutes post-transfusion
Evaluation of Subject's SO2 Level Over the Course of the Transfusion and up to 15 Minutes Post-transfusion	Change in the amount of oxygen in the body (% S02 level), measured with a pulse oximeter, from baseline to up to 15 minutes post-transfusion.	baseline to up to 15 minutes post-transfusion
Evaluation of Subject's Pulse Over the Course of the Transfusion and up to 15 Minutes Post-transfusion	Change in heart rate (beats per minute) from baseline to up to 15 minutes post-transfusion	baseline to up to 15 minutes post-transfusion

Collaborators and Investigators

• Sponsor: Hemanext

Publications and helpful links

General Publications

• Yoshida T, Prudent M, D'alessandro A. Red blood cell storage lesion: causes and potential clinical consequences. Blood Transfus. 2019 Jan;17(1):27-52. doi: 10.2450/2019.0217-18.
• Williams AT, Jani VP, Nemkov T, Lucas A, Yoshida T, Dunham A, D'Alessandro A, Cabrales P. Transfusion of Anaerobically or Conventionally Stored Blood After Hemorrhagic Shock. Shock. 2020 Mar;53(3):352-362. doi: 10.1097/SHK.0000000000001386.
• D'Alessandro A, Yoshida T, Nestheide S, Nemkov T, Stocker S, Stefanoni D, Mohmoud F, Rugg N, Dunham A, Cancelas JA. Hypoxic storage of red blood cells improves metabolism and post-transfusion recovery. Transfusion. 2020 Apr;60(4):786-798. doi: 10.1111/trf.15730. Epub 2020 Feb 27.

Study record dates

Study Major Dates

• Study Start (Actual): August 24, 2022
• Primary Completion (Actual): May 16, 2024
• Study Completion (Actual): May 16, 2024

Study Registration Dates

• First Submitted: August 29, 2022
• First Submitted That Met QC Criteria: September 19, 2022
• First Posted (Actual): September 22, 2022

Study Record Updates

• Last Update Posted (Actual): July 23, 2025
• Last Update Submitted That Met QC Criteria: July 3, 2025
• Last Verified: July 1, 2025

More Information

Terms related to this study

• Keywords: Red Blood Cells; Transfusion; Hypoxic
• Additional Relevant MeSH Terms: Wounds and Injuries; Neoplasms by Site; Neoplasms; Hematologic Diseases; Hematologic Neoplasms; Burns
• Other Study ID Numbers: PRO-CLIN-0012

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: Yes
• product manufactured in and exported from the U.S.: Yes