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HealthyPhase 4NCT02918851

VO2 Max: In Vivo Model for Functional Red Cell Testing. Can RECESS be Explained?

A Phase 4 study testing Transfusion of 7-day stored red blood cells, Transfusion of 28-day stored red blood cells and Transfusion of 42-day stored red blood cells in people with Healthy, run by Stony Brook University at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This is a single-center, randomized, partially blinded study to determine whether 42-day old red blood cells (RBCs) deliver oxygen as effectively as 7-day old RBCs and also to determine whether transfusion with 28-day old RBCs is non-inferior to 7-day old RBCs with respect to oxygen delivery. Read more about this study

Who is it for?
Ages 18 to 40 yearsHealthy volunteers can take part
Conditions the study is for
Healthy
What is being tested?
Transfusion of 7-day stored red blood cells, Transfusion of 28-day stored red blood cells and Transfusion of 42-day stored red blood cells
Could I receive a placebo?
No, everyone receives an active treatment
How many people
42 participants
Where
1 siteUnited States
Study dates
Jan 2017to 20 Nov 2019
Phase
Phase 4
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 40 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Habitual exerciser defined as ≥ 30 minutes of at least moderate or high intensity exercise ≥ 3 times per week. After consent, and at the subsequent screening visit, a VO2 max test will be performed, and subjects with a low value (< 35 mL/kg/min) will be excluded (screen failure). Based on our previous experience, we anticipate that <10% of the subjects will fall into this category
  • Calculated total blood volume (TBV) ≥4,500 mL using an established formula:
  • Men: (0.006012 x H3) + (14.6 x W) + 604 = TBV
  • Women: (0.005835 x H3) + (15 x W) + 183 = TBV [H=height in inches; W=weight in pounds]
  • Has access to transportation to visit the blood collection facility and to return to Stony Brook for all study visits.

Who cannot join

  • Any significant acute or chronic medical illness or problem, including, but not limited to, diabetes, hypertension, cardiac disease, asthma, chronic obstructive lung disease
  • Current or recent (last 60 days) tobacco or nicotine use
  • History of sickle cell trait or disease or any other acquired or hereditary hematological abnormality
  • History of fainting or other significant adverse reaction during phlebotomy or donation of blood
  • Known prolonged corrected QT interval (or evidence of such at screening) on electrocardiogram defined as >470 ms
  • Known or suspected illicit drug or alcohol abuse
Show all 12Show fewer
  • Known or suspected HIV, Hepatitis B, or Hepatitis C infection
  • History of thrombophilia or anticoagulant therapy
  • Pregnancy
  • Obesity defined as BMI>30
  • Recent history of blood donation: a) Single whole blood unit donation within the past 8 weeks; b) Double RBC donation by apheresis within the past 16 weeks; or c) Plasma donation by apheresis within the past 4 weeks
  • Inadequate RBC mass based on TBV <4500 ml (above) or screening Hb <14 g/dL

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Stony Brook Medicine

    Stony Brook, New York, 11794-8480

Other trials in United States

About this study

This is a single-center, randomized, partially blinded study to determine whether 42-day old red blood cells (RBCs) deliver oxygen as effectively as 7-day old RBCs and also to determine whether transfusion with 28-day old RBCs is non-inferior to 7-day old RBCs with respect to oxygen delivery.

In this study, subjects will be randomized to be transfused with 2 units of autologous (one's own) RBCs that are either 7-, 28-, or 42-days old. Endpoints include changes in exercise duration and VO2 max (test of oxygen consumption/delivery) between groups.

Read the detailed description

The US Food and Drug Administration (FDA) regulations permit additive-containing RBCs to be stored for up to 42 days prior to transfusion. However, RBCs progressively develop abnormalities during storage. The efficacy of older stored blood, i.e., effective oxygen delivery, has not been established in rigorous controlled studies. Due to pragmatic reasons, a large clinical trial that randomizes patients to "old" blood may not be feasible.

Every subject will have 2 phlebotomy visits at Stony Brook University Hospital. Subjects randomized to the 7- and 42-day old groups will have 2 units of blood removed at Week 0 and another 2 units removed at Week 5. However, the remaining 28-day group will have 2 units of blood removed at Week 2 and only 1 unit of blood removed at Week 5. During week 6, each subjects will have 3 study visits: 1) On Monday, a VO2 max test; 2) On Wednesday, a transfusion with 2 units of autologous RBCs (each over 1 hour), followed by a VO2 max test 2 hours later; 3) On Friday, a VO2 max test will be done in order to calculate a delta VO2 max (Friday minus Monday results).

Conditions
Healthy
Being tested
Transfusion of 7-day stored red blood cells, Transfusion of 28-day stored red blood cells, Transfusion of 42-day stored red blood cells

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Transfusion of 7-day stored red blood cellsBiological

    Subjects will donate blood at Week 0 and Week 5 of their participation and receive, at Week 6, back a transfusion of their Week 5 (7-day old) red blood cells.

  • Transfusion of 28-day stored red blood cellsBiological

    Subjects will donate blood at Week 2 and Week 5 of their participation and receive, at Week 6, back a transfusion of their Week 2 (28-day old) red blood cells.

  • Transfusion of 42-day stored red blood cellsBiological

    Subjects will donate blood at Week 0 and Week 5 of their participation and receive, at Week 6, back a transfusion of their Week0 (42-day old) red blood cells.

Study groups in NCT02918851
Study groupRoleWhat they receive
7-day old RBCsExperimentalTransfusion of 7-day stored red blood cells: Subjects will be transfused with their own 7-day old red blood cells
Receives: Biological: Transfusion of 7-day stored red blood cells
28-day old RBCsExperimentalTransfusion of 28-day stored red blood cells: Subjects will be transfused with their own 28-day old red blood cells
Receives: Biological: Transfusion of 28-day stored red blood cells
42-day old RBCsExperimentalTransfusion of 42-day stored red blood cells: Subjects will be transfused with their own 42-day old red blood cells
Receives: Biological: Transfusion of 42-day stored red blood cells

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Percent Change From Baseline in Maximal Oxygen Uptake (VO2 Max) After Blood Cell Transfusion

    Percent Change From Baseline in Maximal Oxygen Uptake (VO2 Max) on Day 2 After Blood Cell Transfusion

    Measured: Baseline (prior to receiving blood) and Day 2 after receiving blood

Secondary outcomes (1)
  1. Percent Change in Duration of Exercise From Baseline to Day 2 After RBC Transfusion

    Percent change in duration of exercise from baseline to day 2 after red blood cell transfusion

    Measured: Baseline and Day 2 after transfusion

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted29 Sep 2016 (estimated)
  2. Study startJan 2017
  3. Primary completion9 Aug 2019
  4. Study completion20 Nov 2019

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Other
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Participant
Enrolment
42 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02918851
Sponsor's protocol ID
953865
Status last verified
Mar 2021
First submitted
27 Sep 2016
Last updated
8 Apr 2021
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Publications

  • Bennett-Guerrero E, Rizwan S, Rozensky R, Romeiser JL, Brittelli J, Makaryus R, Lin J, Galanakis DK, Triulzi DJ, Moon RE. Randomized controlled trial of 7, 28, vs 42 day stored red blood cell transfusion on oxygen delivery (VO2 max) and exercise duration. Transfusion. 2021 Mar;61(3):699-707. doi: 10.1111/trf.16237. Epub 2020 Dec 27.

    PubMed 33368319

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Transfusion of 7-day stored red blood cells, Transfusion of 28-day stored red blood cells and Transfusion of 42-day stored red blood cells in people with Healthy, run by Stony Brook University at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 12 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 8 Apr 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 11 Feb 2021). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Percent Change From Baseline in Maximal Oxygen Uptake (VO2 Max) After Blood Cell Transfusion (time frame: Baseline (prior to receiving blood) and Day 2 after receiving blood). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02918851, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 8 Apr 2021.

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Clinical Trial NCT02918851 | AzTrials