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Survival and Recovery of Radio-labeled Platelets Derived From Mirasol-treated Whole Blood

Mirasol System for Whole Blood: Survival and Recovery of Radio-labeled Platelets Derived From Mirasol-treated Whole Blood in Healthy Volunteers

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02330081
Acronym
Medic
Enrollment
22
Registered
2015-01-01
Start date
2015-04-30
Completion date
2015-07-31
Last updated
2019-06-12

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Blood Safety

Keywords

pathogen reduction technology, whole blood, Platelets, Mirasol

Brief summary

A total of twelve healthy volunteers will donate one unit of fresh whole blood. This unit will be treated with the Mirasol Pathogen Reduction Technology for Whole blood and then stored for 24h. At the end of storage, platelet concentrates will be separated from the unit, tested for key in vitro parameters and radiolabeled. On the same day (so 24h after the donation of whole blood), the volunteer will donate a fresh sample of whole blood. Platelets will be separated from this fresh sample and labeled with another radio-isotope. Then, the two radiolabeled platelet aliquots will be infused simultaneously and the recovery and survival of the two types of platelets will be measured.

Detailed description

The study will be a prospective, single-center, single-arm, intra-subject controlled, open-label design. Subjects will donate one unit of fresh whole blood. This unit will be treated with the Mirasol PRT System for whole blood and then stored for 24 hours ± 1 hour at 22 ± 2°C. At the end of storage, platelet concentrates will be separated from the unit according to the Biomedical Excellence for Safer Transfusion (BEST) procedures. An aliquot will be removed from the platelet concentrates for testing and for radiolabeling and reinfusion. The platelets in Mirasol-treated whole blood will be tested for key in vitro parameters directly after treatment (Day 0) and at the end of storage (Day 1). Sterility testing will also be conducted on the stored units. An aliquot of the platelet concentrate separated from each unit of stored Mirasol-treated whole blood will be radiolabeled with either 111Indium Oxine or 51Chromium, and autologously infused. An intra-subject control will be utilized as per the BEST guidelines for platelet radiolabeling procedures. On the day of infusion, the subject will donate a fresh sample of whole blood. Platelets will be separated from this fresh sample and labeled with the radio-isotope that was not used to label the subject's Mirasol-treated platelet sample. The two radiolabeled platelet aliquots (Mirasol-treated and fresh control) will be infused simultaneously, and the recovery and survival of the two types of platelets will be measured according to standard institutional practice.

Interventions

DEVICEMirasol treatment of whole blood

Subject will be infused with two products at the same time: 1. radio-labeled platelets derived from subject's stored whole blood which has been treated with Mirasol. 2. radio-labeled platelets derived from subject's untreated fresh whole blood.

Sponsors

United States Department of Defense
CollaboratorFED
Terumo BCTbio
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
DEVICE_FEASIBILITY
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
Yes

Inclusion criteria

1. Healthy adult subjects, who meet the inclusion criteria defined by the Blood Center for whole blood donation. 2. Age ≥ 18 and \< 70 years 3. Able to commit to the study follow-up schedule. 4. Subjects must have adequate antecubital venous access for whole blood collection and follow-up blood draws. 5. Subjects of child-bearing potential (female or male) must agree to use effective contraception per site guideline or abstain from heterosexual intercourse during the course of the study. 6. Female of childbearing potential must be willing to take a pregnancy test prior to infusion of radiolabeled platelets. 7. Subjects must agree to report adverse events (AEs) during the required reporting period.

Exclusion criteria

1. Use of medications that interfere with platelet function within 48 hours of planned whole blood collection. 2. Participation currently, or within the last 12 months, in another investigational trial that would potentially interfere with the analysis of this investigation (e.g., pharmaceutical). 3. Inability to comply with the protocol in the opinion of the investigator. 4. Unable or unwilling to give informed consent.

Design outcomes

Primary

MeasureTime frameDescription
Platelet 24-hour Relative Recovery24 hoursRelative recovery of platelets derived from Mirasol-treated whole blood (WB) units that had been stored for 24 ± 1 hours at 22 ± 2ºC, measured as a percentage of platelets derived from freshly collected WB from the same participant. Platelets were isolated from both Mirasol-treated WB and from fresh WB from the same participant, radiolabeled with either 111Indium or 51Chromium, and these 2 radiolabeled platelet samples (ie, 1 untreated, fresh and 1 Mirasol-treated, stored) were combined and reinfused back to the same participant.
Relative Platelet SurvivalDays 1 through 10 post-infusionMean survival time of platelets derived from Mirasol-treated whole blood (WB) units that had been stored for 24 ± 1 hours at 22 ± 2ºC as compared to the mean survival time of fresh platelets from the same donor, measured in hours. Platelets were isolated from both Mirasol-treated WB and from fresh WB from the same participant, radiolabeled with either 111Indium or 51Chromium, and these 2 radiolabeled platelet samples (ie, 1 untreated, fresh and 1 Mirasol-treated, stored) were combined and reinfused back to the same participant.

Secondary

MeasureTime frameDescription
in Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - White Blood CellsDay 0 post-collection, day 0 post-illumination, day 1 post-storage
in Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - PlateletsDay 0 post-collection, day 0 post-illumination, day 1 post-storage
in Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - pHDay 0 post-collection, day 0 post-illumination, day 1 post-storagepH is a measure of the acidity or alkalinity of a solution, numerically equal to 7 for neutral solutions, increasing with increasing alkalinity and decreasing with increasing acidity. The pH scale commonly in use ranges from 0 to 14
in Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - CO2Day 0 post-collection, day 0 post-illumination, day 1 post-storage
in Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - pO2Day 0 post-collection, day 0 post-illumination, day 1 post-storage
in Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - HemoglobinDay 0 post-collection, day 0 post-illumination, day 1 post-storage
in Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - GlucoseDay 0 post-collection, day 0 post-illumination, day 1 post-storage
in Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - LactateDay 0 post-collection, day 0 post-illumination, day 1 post-storage
in Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - HemolysisDay 0 post-collection, day 0 post-illumination, day 1 post-storageHemolysis is the rupture or destruction of red blood cells (RBCs), which releases hemoglobin from inside the RBCs into the plasma (where it is called free hemoglobin). Hemolysis is measured as the percentage of free hemoglobin compared to the total hemoglobin in a blood sample.
in Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - Plasma Free HemoglobinDay 0 post-collection, day 0 post-illumination, day 1 post-storage
in Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - PotassiumDay 0 post-collection, day 0 post-illumination, day 1 post-storage
in Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - HematocritDay 0 post-collection, day 0 post-illumination, day 1 post-storage

Countries

Norway

Participant flow

Participants by arm

ArmCount
Mirasol
Subject will be infused with two products at the same time: 1. radio-labeled platelets derived from subjects stored whole blood which has been treated with Mirasol. 2. radio-labeled platelets derived from subjects untreated fresh whole blood. Mirasol treatment of whole blood: Subject will be infused with two products at the same time: 1. radio-labeled platelets derived from subject's stored whole blood which has been treated with Mirasol. 2. radio-labeled platelets derived from subject's untreated fresh whole blood.
14
Total14

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyAdverse Event1
Overall StudyDonation did not meet criteria1
Overall StudyProtocol Violation6

Baseline characteristics

CharacteristicMirasol
Age, Continuous40.4 years
STANDARD_DEVIATION 11.94
Blood type
A
6 participants
Blood type
AB
0 participants
Blood type
B
1 participants
Blood type
O
7 participants
Height172.6 cm
STANDARD_DEVIATION 9.08
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
0 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
14 Participants
Region of Enrollment
Norway
14 participants
Rhesus status
Negative
0 participants
Rhesus status
Positive
14 participants
Sex: Female, Male
Female
10 Participants
Sex: Female, Male
Male
4 Participants
Weight78.7 kg
STANDARD_DEVIATION 13.68

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
— / —
other
Total, other adverse events
10 / 22
serious
Total, serious adverse events
0 / 22

Outcome results

Primary

Platelet 24-hour Relative Recovery

Relative recovery of platelets derived from Mirasol-treated whole blood (WB) units that had been stored for 24 ± 1 hours at 22 ± 2ºC, measured as a percentage of platelets derived from freshly collected WB from the same participant. Platelets were isolated from both Mirasol-treated WB and from fresh WB from the same participant, radiolabeled with either 111Indium or 51Chromium, and these 2 radiolabeled platelet samples (ie, 1 untreated, fresh and 1 Mirasol-treated, stored) were combined and reinfused back to the same participant.

Time frame: 24 hours

Population: Per Protocol Population = all subjects in the mITT Population who met all of the inclusion and none of the exclusion criteria at enrollment, had no concurrent illness or notable signs/symptoms during the 24 hours prior to reinfusion, had completed all postinfusion blood sampling for recovery and survival calculations and had no protocol violations.

ArmMeasureValue (MEAN)
Test Platelets From Mirasol-treated Whole BloodPlatelet 24-hour Relative Recovery43.31 Percentage of platelet count
Control PlateletsPlatelet 24-hour Relative Recovery52.01 Percentage of platelet count
Primary

Relative Platelet Survival

Mean survival time of platelets derived from Mirasol-treated whole blood (WB) units that had been stored for 24 ± 1 hours at 22 ± 2ºC as compared to the mean survival time of fresh platelets from the same donor, measured in hours. Platelets were isolated from both Mirasol-treated WB and from fresh WB from the same participant, radiolabeled with either 111Indium or 51Chromium, and these 2 radiolabeled platelet samples (ie, 1 untreated, fresh and 1 Mirasol-treated, stored) were combined and reinfused back to the same participant.

Time frame: Days 1 through 10 post-infusion

Population: Per Protocol Population = all subjects in the mITT Population who met all of the inclusion and none of the exclusion criteria at enrollment, had no concurrent illness or notable signs/symptoms during the 24 hours prior to reinfusion, had completed all postinfusion blood sampling for recovery and survival calculations and had no protocol violations.

ArmMeasureValue (MEAN)
Test Platelets From Mirasol-treated Whole BloodRelative Platelet Survival152.9 hours
Control PlateletsRelative Platelet Survival188.8 hours
Secondary

in Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - CO2

Time frame: Day 0 post-collection, day 0 post-illumination, day 1 post-storage

Population: Modified Intent to Treat population (mITT) = all enrolled subjects who signed informed consent and have valid data (excluding Subjects V01 through V08 who had irreparably confounded data due to a calibration error of the radioactivity detection device).

ArmMeasureGroupValue (MEAN)Dispersion
Test Platelets From Mirasol-treated Whole Bloodin Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - CO2Day 0 post-collection9.96 kPaStandard Deviation 1.335
Test Platelets From Mirasol-treated Whole Bloodin Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - CO2Day 0 post-illumination8.78 kPaStandard Deviation 0.946
Test Platelets From Mirasol-treated Whole Bloodin Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - CO2Day 1 post-storage13.05 kPaStandard Deviation 1.216
Secondary

in Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - Glucose

Time frame: Day 0 post-collection, day 0 post-illumination, day 1 post-storage

Population: Modified Intent to Treat population (mITT) = all enrolled subjects who signed informed consent and have valid data (excluding Subjects V01 through V08 who had irreparably confounded data due to a calibration error of the radioactivity detection device).

ArmMeasureGroupValue (MEAN)Dispersion
Test Platelets From Mirasol-treated Whole Bloodin Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - GlucoseDay 0 post-collection20.50 mmol/LStandard Deviation 1.778
Test Platelets From Mirasol-treated Whole Bloodin Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - GlucoseDay 0 post-illumination18.79 mmol/LStandard Deviation 1.498
Test Platelets From Mirasol-treated Whole Bloodin Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - GlucoseDay 1 post-storage15.12 mmol/LStandard Deviation 1.625
Secondary

in Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - Hematocrit

Time frame: Day 0 post-collection, day 0 post-illumination, day 1 post-storage

Population: Modified Intent to Treat population (mITT) = all enrolled subjects who signed informed consent and have valid data (excluding Subjects V01 through V08 who had irreparably confounded data due to a calibration error of the radioactivity detection device).

ArmMeasureGroupValue (MEAN)Dispersion
Test Platelets From Mirasol-treated Whole Bloodin Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - HematocritDay 0 post-collection35.88 Percentage of total blood volumeStandard Deviation 1.945
Test Platelets From Mirasol-treated Whole Bloodin Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - HematocritDay 0 post-illumination33.37 Percentage of total blood volumeStandard Deviation 1.754
Test Platelets From Mirasol-treated Whole Bloodin Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - HematocritDay 1 post-storage34.49 Percentage of total blood volumeStandard Deviation 1.691
Secondary

in Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - Hemoglobin

Time frame: Day 0 post-collection, day 0 post-illumination, day 1 post-storage

Population: Modified Intent to Treat population (mITT) = all enrolled subjects who signed informed consent and have valid data (excluding Subjects V01 through V08 who had irreparably confounded data due to a calibration error of the radioactivity detection device).

ArmMeasureGroupValue (MEAN)Dispersion
Test Platelets From Mirasol-treated Whole Bloodin Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - HemoglobinDay 0 post-collection12.49 g/dLStandard Deviation 0.762
Test Platelets From Mirasol-treated Whole Bloodin Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - HemoglobinDay 0 post-illumination11.69 g/dLStandard Deviation 0.741
Test Platelets From Mirasol-treated Whole Bloodin Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - HemoglobinDay 1 post-storage11.73 g/dLStandard Deviation 0.732
Secondary

in Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - Hemolysis

Hemolysis is the rupture or destruction of red blood cells (RBCs), which releases hemoglobin from inside the RBCs into the plasma (where it is called free hemoglobin). Hemolysis is measured as the percentage of free hemoglobin compared to the total hemoglobin in a blood sample.

Time frame: Day 0 post-collection, day 0 post-illumination, day 1 post-storage

Population: Modified Intent to Treat population (mITT) = all enrolled subjects who signed informed consent and have valid data (excluding Subjects V01 through V08 who had irreparably confounded data due to a calibration error of the radioactivity detection device).

ArmMeasureGroupValue (MEAN)Dispersion
Test Platelets From Mirasol-treated Whole Bloodin Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - HemolysisDay 0 post-collection0.1 percentage of free hemoglobinStandard Deviation 0.11
Test Platelets From Mirasol-treated Whole Bloodin Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - HemolysisDay 0 post-illumination0.1 percentage of free hemoglobinStandard Deviation 0.1
Test Platelets From Mirasol-treated Whole Bloodin Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - HemolysisDay 1 post-storage0.2 percentage of free hemoglobinStandard Deviation 0.1
Secondary

in Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - Lactate

Time frame: Day 0 post-collection, day 0 post-illumination, day 1 post-storage

Population: Modified Intent to Treat population (mITT) = all enrolled subjects who signed informed consent and have valid data (excluding Subjects V01 through V08 who had irreparably confounded data due to a calibration error of the radioactivity detection device).

ArmMeasureGroupValue (MEAN)Dispersion
Test Platelets From Mirasol-treated Whole Bloodin Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - LactateDay 0 post-collection2.01 mmol/LStandard Deviation 0.635
Test Platelets From Mirasol-treated Whole Bloodin Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - LactateDay 0 post-illumination2.44 mmol/LStandard Deviation 0.549
Test Platelets From Mirasol-treated Whole Bloodin Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - LactateDay 1 post-storage8.97 mmol/LStandard Deviation 0.811
Secondary

in Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - pH

pH is a measure of the acidity or alkalinity of a solution, numerically equal to 7 for neutral solutions, increasing with increasing alkalinity and decreasing with increasing acidity. The pH scale commonly in use ranges from 0 to 14

Time frame: Day 0 post-collection, day 0 post-illumination, day 1 post-storage

Population: Modified Intent to Treat population (mITT) = all enrolled subjects who signed informed consent and have valid data (excluding Subjects V01 through V08 who had irreparably confounded data due to a calibration error of the radioactivity detection device).

ArmMeasureGroupValue (MEAN)Dispersion
Test Platelets From Mirasol-treated Whole Bloodin Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - pHDay 0 post-collection7.017 units on a scaleStandard Deviation 0.0261
Test Platelets From Mirasol-treated Whole Bloodin Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - pHDay 0 post-illumination7.027 units on a scaleStandard Deviation 0.022
Test Platelets From Mirasol-treated Whole Bloodin Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - pHDay 1 post-storage6.804 units on a scaleStandard Deviation 0.0256
Secondary

in Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - Plasma Free Hemoglobin

Time frame: Day 0 post-collection, day 0 post-illumination, day 1 post-storage

Population: Modified Intent to Treat population (mITT) = all enrolled subjects who signed informed consent and have valid data (excluding Subjects V01 through V08 who had irreparably confounded data due to a calibration error of the radioactivity detection device).

ArmMeasureGroupValue (MEAN)Dispersion
Test Platelets From Mirasol-treated Whole Bloodin Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - Plasma Free HemoglobinDay 0 post-collection0.24 g/LStandard Deviation 0.241
Test Platelets From Mirasol-treated Whole Bloodin Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - Plasma Free HemoglobinDay 0 post-illumination0.22 g/LStandard Deviation 0.204
Test Platelets From Mirasol-treated Whole Bloodin Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - Plasma Free HemoglobinDay 1 post-storage0.30 g/LStandard Deviation 0.211
Secondary

in Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - Platelets

Time frame: Day 0 post-collection, day 0 post-illumination, day 1 post-storage

Population: Modified Intent to Treat population (mITT) = all enrolled subjects who signed informed consent and have valid data (excluding Subjects V01 through V08 who had irreparably confounded data due to a calibration error of the radioactivity detection device).

ArmMeasureGroupValue (MEAN)Dispersion
Test Platelets From Mirasol-treated Whole Bloodin Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - PlateletsDay 0 post-collection151.77 cells * 10e9/LStandard Deviation 43.051
Test Platelets From Mirasol-treated Whole Bloodin Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - PlateletsDay 0 post-illumination110.52 cells * 10e9/LStandard Deviation 26.686
Test Platelets From Mirasol-treated Whole Bloodin Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - PlateletsDay 1 post-storage154.43 cells * 10e9/LStandard Deviation 34.807
Secondary

in Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - pO2

Time frame: Day 0 post-collection, day 0 post-illumination, day 1 post-storage

Population: Modified Intent to Treat population (mITT) = all enrolled subjects who signed informed consent and have valid data (excluding Subjects V01 through V08 who had irreparably confounded data due to a calibration error of the radioactivity detection device).

ArmMeasureGroupValue (MEAN)Dispersion
Test Platelets From Mirasol-treated Whole Bloodin Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - pO2Day 0 post-collection5.93 kPaStandard Deviation 1.521
Test Platelets From Mirasol-treated Whole Bloodin Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - pO2Day 0 post-illumination6.20 kPaStandard Deviation 2.069
Test Platelets From Mirasol-treated Whole Bloodin Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - pO2Day 1 post-storage4.68 kPaStandard Deviation 1.146
Secondary

in Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - Potassium

Time frame: Day 0 post-collection, day 0 post-illumination, day 1 post-storage

Population: Modified Intent to Treat population (mITT) = all enrolled subjects who signed informed consent and have valid data (excluding Subjects V01 through V08 who had irreparably confounded data due to a calibration error of the radioactivity detection device).

ArmMeasureGroupValue (MEAN)Dispersion
Test Platelets From Mirasol-treated Whole Bloodin Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - PotassiumDay 0 post-illumination3.10 mmol/LStandard Deviation 0.141
Test Platelets From Mirasol-treated Whole Bloodin Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - PotassiumDay 1 post-storage5.86 mmol/LStandard Deviation 0.401
Test Platelets From Mirasol-treated Whole Bloodin Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - PotassiumDay 0 post-collection3.11 mmol/LStandard Deviation 0.192
Secondary

in Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - White Blood Cells

Time frame: Day 0 post-collection, day 0 post-illumination, day 1 post-storage

Population: Modified Intent to Treat population (mITT) = all enrolled subjects who signed informed consent and have valid data (excluding Subjects V01 through V08 who had irreparably confounded data due to a calibration error of the radioactivity detection device).

ArmMeasureGroupValue (MEAN)Dispersion
Test Platelets From Mirasol-treated Whole Bloodin Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - White Blood CellsDay 0 post-collection4.49 cells * 10e9/LStandard Deviation 1.002
Test Platelets From Mirasol-treated Whole Bloodin Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - White Blood CellsDay 0 post-illumination4.17 cells * 10e9/LStandard Deviation 0.98
Test Platelets From Mirasol-treated Whole Bloodin Vitro Characteristics of Whole Blood and Platelets Derived From Mirasol-treated Whole Blood - White Blood CellsDay 1 post-storage3.64 cells * 10e9/LStandard Deviation 0.804

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026