Trial Outcomes & Findings for Comparison Between Return and Wastage of Your Own Blood, Collected During Spinal Surgery, for Verification of Safety When Returning Blood (NCT NCT01251042)

NCT ID: NCT01251042

Last Updated: 2021-11-11

Results Overview

Difference in plasma free hemoglobin (p-Hb) concentration between screening and 24 hours after surgery

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

51 participants

Primary outcome timeframe

At screening and 24 hours after surgery (surgery takes place 1-7 days after screening)

Results posted on

2021-11-11

Participant Flow

51 subjects were enrolled but 2 subjects were never randomized and have thus not been included in the analysis.

Participant milestones

Participant milestones
Measure
Sangvia and Retransfusion
Blood collected and retransfused with Sangvia.
Sangvia and no Retransfusion
Blood collected with Sangvia but discarded, i.e. not retransfused.
Overall Study
STARTED
26
23
Overall Study
COMPLETED
26
23
Overall Study
NOT COMPLETED
0
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Comparison Between Return and Wastage of Your Own Blood, Collected During Spinal Surgery, for Verification of Safety When Returning Blood

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Sangvia and Retransfusion
n=26 Participants
Blood collected and retransfused with Sangvia.
Sangvia and no Retransfusion
n=23 Participants
Blood collected with Sangvia but discarded, i.e. not retransfused.
Total
n=49 Participants
Total of all reporting groups
Age, Continuous
53 years
STANDARD_DEVIATION 14 • n=5 Participants
59 years
STANDARD_DEVIATION 13 • n=7 Participants
56 years
STANDARD_DEVIATION 14 • n=5 Participants
Sex: Female, Male
Female
18 Participants
n=5 Participants
15 Participants
n=7 Participants
33 Participants
n=5 Participants
Sex: Female, Male
Male
8 Participants
n=5 Participants
8 Participants
n=7 Participants
16 Participants
n=5 Participants
Region of Enrollment
Denmark
26 participants
n=5 Participants
23 participants
n=7 Participants
49 participants
n=5 Participants

PRIMARY outcome

Timeframe: At screening and 24 hours after surgery (surgery takes place 1-7 days after screening)

Population: All subjects randomized.

Difference in plasma free hemoglobin (p-Hb) concentration between screening and 24 hours after surgery

Outcome measures

Outcome measures
Measure
Sangvia and Retransfusion
n=26 Participants
Blood collected and retransfused with Sangvia.
Sangvia and no Retransfusion
n=23 Participants
Blood collected with Sangvia but discarded, i.e. not retransfused.
Difference in Plasma Free Hemoglobin (p-Hb) Concentration
0.1 g/l
Standard Deviation 0.2
0.0 g/l
Standard Deviation 0.1

SECONDARY outcome

Timeframe: At screening and up until 96 hours after surgery (surgery takes place 1-7 days after screening)

Population: All subjects randomized.

Systemic plasma free hemoglobin (p-Hb) concentration from screening until 96 hours after surgery.

Outcome measures

Outcome measures
Measure
Sangvia and Retransfusion
n=26 Participants
Blood collected and retransfused with Sangvia.
Sangvia and no Retransfusion
n=23 Participants
Blood collected with Sangvia but discarded, i.e. not retransfused.
Plasma Free Hemoglobin (p-Hb) Concentration
Screening
0.2 g/l
Standard Deviation 0.2 • Interval -0.0288 to 0.1208
0.1 g/l
Standard Deviation 0.1
Plasma Free Hemoglobin (p-Hb) Concentration
At Randomization (0 hrs)
0.2 g/l
Standard Deviation 0.2
0.2 g/l
Standard Deviation 0.2
Plasma Free Hemoglobin (p-Hb) Concentration
End of transfusion
1.2 g/l
Standard Deviation 0.7
NA g/l
Standard Deviation NA
Time point End of transfusion only applicable to subjects in the investigational group (Sangvia and retransfusion).
Plasma Free Hemoglobin (p-Hb) Concentration
3 hours
0.9 g/l
Standard Deviation 0.7
0.1 g/l
Standard Deviation 0.1
Plasma Free Hemoglobin (p-Hb) Concentration
6 hours
0.5 g/l
Standard Deviation 0.1
0.0 g/l
Standard Deviation 0.1
Plasma Free Hemoglobin (p-Hb) Concentration
24 hours
0.1 g/l
Standard Deviation 0.1
0.1 g/l
Standard Deviation 0.1
Plasma Free Hemoglobin (p-Hb) Concentration
48 hours
0.1 g/l
Standard Deviation 0.1
0.1 g/l
Standard Deviation 0.3
Plasma Free Hemoglobin (p-Hb) Concentration
96 hours
0.1 g/l
Standard Deviation 0.2
01. g/l
Standard Deviation 0.1

SECONDARY outcome

Timeframe: At screening and up until 96 hours after surgery (surgery takes place 1-7 days after screening)

Population: All subjects randomized.

Systemic hemoglobin concentration from screening until 96 hours after surgery.

Outcome measures

Outcome measures
Measure
Sangvia and Retransfusion
n=26 Participants
Blood collected and retransfused with Sangvia.
Sangvia and no Retransfusion
n=23 Participants
Blood collected with Sangvia but discarded, i.e. not retransfused.
Hemoglobin Concentration
Screening
14.2 g/dl
Standard Deviation 1.1
13.8 g/dl
Standard Deviation 1.3
Hemoglobin Concentration
At Randomization (0 hrs)
11.8 g/dl
Standard Deviation 1.1
11.1 g/dl
Standard Deviation 1.5
Hemoglobin Concentration
End of transfusion
12.5 g/dl
Standard Deviation 1.1
NA g/dl
Standard Deviation NA
Time point End of transfusion only applicable to subjects in the investigational group (Sangvia and retransfusion).
Hemoglobin Concentration
3 hours
12.5 g/dl
Standard Deviation 1.1
11.6 g/dl
Standard Deviation 1.3
Hemoglobin Concentration
6 hours
12.4 g/dl
Standard Deviation 1.2
11.5 g/dl
Standard Deviation 1.2
Hemoglobin Concentration
24 hours
11.6 g/dl
Standard Deviation 1.2
10.8 g/dl
Standard Deviation 1.2
Hemoglobin Concentration
48 hours
11.4 g/dl
Standard Deviation 1.0
10.8 g/dl
Standard Deviation 1.7
Hemoglobin Concentration
96 hours
11.2 g/dl
Standard Deviation 1.3
10.9 g/dl
Standard Deviation 1.5

SECONDARY outcome

Timeframe: At screening and up until 96 hours after surgery (surgery takes place 1-7 days after screening)

Population: All subjects randomized.

Systemic potassium concentration from screening until 96 hours after surgery.

Outcome measures

Outcome measures
Measure
Sangvia and Retransfusion
n=26 Participants
Blood collected and retransfused with Sangvia.
Sangvia and no Retransfusion
n=23 Participants
Blood collected with Sangvia but discarded, i.e. not retransfused.
Potassium Concentration
96 hours
4.0 mmol/l
Standard Deviation 0.4
4.0 mmol/l
Standard Deviation 0.5
Potassium Concentration
Screening
4.2 mmol/l
Standard Deviation 0.3
4.4 mmol/l
Standard Deviation 0.4
Potassium Concentration
At Randomization (0 hrs)
4.2 mmol/l
Standard Deviation 0.4
4.1 mmol/l
Standard Deviation 0.7
Potassium Concentration
End of transfusion
4.1 mmol/l
Standard Deviation 0.4
NA mmol/l
Standard Deviation NA
Time point End of transfusion only applicable to subjects in the investigational group (Sangvia and retransfusion).
Potassium Concentration
3 hours
4.0 mmol/l
Standard Deviation 0.4
4.3 mmol/l
Standard Deviation 0.4
Potassium Concentration
6 hours
4.2 mmol/l
Standard Deviation 0.5
4.3 mmol/l
Standard Deviation 0.4
Potassium Concentration
24 hours
3.9 mmol/l
Standard Deviation 0.3
4.0 mmol/l
Standard Deviation 0.4
Potassium Concentration
48 hours
4.0 mmol/l
Standard Deviation 0.6
4.0 mmol/l
Standard Deviation 0.5

SECONDARY outcome

Timeframe: At screening and up until 96 hours after surgery (surgery takes place 1-7 days after screening)

Population: All subjects randomized.

Systemic creatinine concentration from screening until 96 hours after surgery.

Outcome measures

Outcome measures
Measure
Sangvia and Retransfusion
n=26 Participants
Blood collected and retransfused with Sangvia.
Sangvia and no Retransfusion
n=23 Participants
Blood collected with Sangvia but discarded, i.e. not retransfused.
Creatinine Concentration
Screening
64 μmol/l
Standard Deviation 13
70 μmol/l
Standard Deviation 15
Creatinine Concentration
At Randomization (0 hrs)
65 μmol/l
Standard Deviation 12
69 μmol/l
Standard Deviation 16
Creatinine Concentration
End of transfusion
68 μmol/l
Standard Deviation 13
NA μmol/l
Standard Deviation NA
Time point End of transfusion only applicable to subjects in the investigational group (Sangvia and retransfusion).
Creatinine Concentration
3 hours
66 μmol/l
Standard Deviation 12
72 μmol/l
Standard Deviation 16
Creatinine Concentration
6 hours
62 μmol/l
Standard Deviation 12
64 μmol/l
Standard Deviation 12
Creatinine Concentration
24 hours
61 μmol/l
Standard Deviation 12
66 μmol/l
Standard Deviation 17
Creatinine Concentration
48 hours
62 μmol/l
Standard Deviation 12
67 μmol/l
Standard Deviation 16
Creatinine Concentration
96 hours
59 μmol/l
Standard Deviation 12
64 μmol/l
Standard Deviation 14

SECONDARY outcome

Timeframe: At screening and up until 96 hours after surgery (surgery takes place 1-7 days after screening)

Population: All subjects randomized.

Systemic IL-1-α concentration from screening until 96 hours after surgery.

Outcome measures

Outcome measures
Measure
Sangvia and Retransfusion
n=26 Participants
Blood collected and retransfused with Sangvia.
Sangvia and no Retransfusion
n=23 Participants
Blood collected with Sangvia but discarded, i.e. not retransfused.
Interleukin-1-alpha (IL-1-α) Concentration
Screening
18.36 pg/ml
Standard Deviation 24.14
23.44 pg/ml
Standard Deviation 36.30
Interleukin-1-alpha (IL-1-α) Concentration
At Randomization (0 hrs)
13.66 pg/ml
Standard Deviation 18.37
22.39 pg/ml
Standard Deviation 37.35
Interleukin-1-alpha (IL-1-α) Concentration
End of transfusion
14.97 pg/ml
Standard Deviation 16.21
NA pg/ml
Standard Deviation NA
Time point End of transfusion only applicable to subjects in the investigational group (Sangvia and retransfusion).
Interleukin-1-alpha (IL-1-α) Concentration
3 hours
14.04 pg/ml
Standard Deviation 17.17
26.69 pg/ml
Standard Deviation 51.07
Interleukin-1-alpha (IL-1-α) Concentration
24 hours
12.45 pg/ml
Standard Deviation 14.26
22.16 pg/ml
Standard Deviation 34.34
Interleukin-1-alpha (IL-1-α) Concentration
48 hours
12.63 pg/ml
Standard Deviation 15.06
15.74 pg/ml
Standard Deviation 14.47
Interleukin-1-alpha (IL-1-α) Concentration
96 hours
13.44 pg/ml
Standard Deviation 16.15
17.41 pg/ml
Standard Deviation 14.10

SECONDARY outcome

Timeframe: At screening and up until 96 hours after surgery (surgery takes place 1-7 days after screening)

Population: All subjects randomized.

Systemic IL-6 concentration from screening until 96 hours after surgery.

Outcome measures

Outcome measures
Measure
Sangvia and Retransfusion
n=26 Participants
Blood collected and retransfused with Sangvia.
Sangvia and no Retransfusion
n=23 Participants
Blood collected with Sangvia but discarded, i.e. not retransfused.
Interleukin-6 (IL-6) Concentration
3 hours
58.29 pg/ml
Standard Deviation 87.34
64.20 pg/ml
Standard Deviation 93.69
Interleukin-6 (IL-6) Concentration
24 hours
116.65 pg/ml
Standard Deviation 171.29
118.89 pg/ml
Standard Deviation 192.73
Interleukin-6 (IL-6) Concentration
48 hours
118.05 pg/ml
Standard Deviation 163.19
163.73 pg/ml
Standard Deviation 188.09
Interleukin-6 (IL-6) Concentration
96 hours
29.14 pg/ml
Standard Deviation 24.00
32.51 pg/ml
Standard Deviation 19.15
Interleukin-6 (IL-6) Concentration
Screening
8.35 pg/ml
Standard Deviation 9.38
8.94 pg/ml
Standard Deviation 10.45
Interleukin-6 (IL-6) Concentration
At Randomization (0 hrs)
7.27 pg/ml
Standard Deviation 6.12
9.71 pg/ml
Standard Deviation 9.71
Interleukin-6 (IL-6) Concentration
End of transfusion
37.30 pg/ml
Standard Deviation 46.00
NA pg/ml
Standard Deviation NA
Time point End of transfusion only applicable to subjects in the investigational group (Sangvia and retransfusion).

SECONDARY outcome

Timeframe: At screening and up until 96 hours after surgery (surgery takes place 1-7 days after screening)

Population: All subjects randomized.

Systemic IL-8 concentration from screening until 96 hours after surgery.

Outcome measures

Outcome measures
Measure
Sangvia and Retransfusion
n=26 Participants
Blood collected and retransfused with Sangvia.
Sangvia and no Retransfusion
n=23 Participants
Blood collected with Sangvia but discarded, i.e. not retransfused.
Interleukin-8 (IL-8) Concentration
Screening
1.35 pg/ml
Standard Deviation 1.07
1.35 pg/ml
Standard Deviation 0.76
Interleukin-8 (IL-8) Concentration
At Randomization (0 hrs)
2.34 pg/ml
Standard Deviation 2.67
2.01 pg/ml
Standard Deviation 2.54
Interleukin-8 (IL-8) Concentration
End of transfusion
4.32 pg/ml
Standard Deviation 6.41
NA pg/ml
Standard Deviation NA
Time point End of transfusion only applicable to subjects in the investigational group (Sangvia and retransfusion).
Interleukin-8 (IL-8) Concentration
3 hours
5.17 pg/ml
Standard Deviation 9.14
2.91 pg/ml
Standard Deviation 2.79
Interleukin-8 (IL-8) Concentration
24 hours
2.05 pg/ml
Standard Deviation 1.53
3.13 pg/ml
Standard Deviation 2.33
Interleukin-8 (IL-8) Concentration
48 hours
2.57 pg/ml
Standard Deviation 2.27
3.77 pg/ml
Standard Deviation 2.88
Interleukin-8 (IL-8) Concentration
96 hours
2.48 pg/ml
Standard Deviation 1.96
2.70 pg/ml
Standard Deviation 1.61

SECONDARY outcome

Timeframe: At screening and up until 96 hours after surgery (surgery takes place 1-7 days after screening)

Population: All subjects randomized.

Systemic IL-10 concentration from screening until 96 hours after surgery.

Outcome measures

Outcome measures
Measure
Sangvia and Retransfusion
n=26 Participants
Blood collected and retransfused with Sangvia.
Sangvia and no Retransfusion
n=23 Participants
Blood collected with Sangvia but discarded, i.e. not retransfused.
Interleukin-10 (IL-10) Concentration
Screening
2.25 pg/ml
Standard Deviation 2.72
2.07 pg/ml
Standard Deviation 1.19
Interleukin-10 (IL-10) Concentration
At Randomization (0 hrs)
4.59 pg/ml
Standard Deviation 3.44
7.99 pg/ml
Standard Deviation 9.88
Interleukin-10 (IL-10) Concentration
End of transfusion
70.65 pg/ml
Standard Deviation 100.88
NA pg/ml
Standard Deviation NA
Time point End of transfusion only applicable to subjects in the investigational group (Sangvia and retransfusion).
Interleukin-10 (IL-10) Concentration
3 hours
50.60 pg/ml
Standard Deviation 81.04
18.36 pg/ml
Standard Deviation 18.11
Interleukin-10 (IL-10) Concentration
24 hours
5.29 pg/ml
Standard Deviation 4.26
4.27 pg/ml
Standard Deviation 2.49
Interleukin-10 (IL-10) Concentration
48 hours
3.54 pg/ml
Standard Deviation 1.48
4.96 pg/ml
Standard Deviation 3.23
Interleukin-10 (IL-10) Concentration
96 hours
2.15 pg/ml
Standard Deviation 1.34
2.67 pg/ml
Standard Deviation 1.12

SECONDARY outcome

Timeframe: At screening and up until 96 hours after surgery (surgery takes place 1-7 days after screening)

Population: All subjects randomized.

Systemic TNF-α concentration from screening until 96 hours after surgery.

Outcome measures

Outcome measures
Measure
Sangvia and Retransfusion
n=26 Participants
Blood collected and retransfused with Sangvia.
Sangvia and no Retransfusion
n=23 Participants
Blood collected with Sangvia but discarded, i.e. not retransfused.
Tumor Necrosis Factor Alpha (TNF-α) Concentration
Screening
25.40 pg/ml
Standard Deviation 52.70
15.42 pg/ml
Standard Deviation 34.15
Tumor Necrosis Factor Alpha (TNF-α) Concentration
At Randomization (0 hrs)
16.14 pg/ml
Standard Deviation 30.51
13.87 pg/ml
Standard Deviation 28.37
Tumor Necrosis Factor Alpha (TNF-α) Concentration
End of transfusion
17.43 pg/ml
Standard Deviation 28.41
NA pg/ml
Standard Deviation NA
Time point End of transfusion only applicable to subjects in the investigational group (Sangvia and retransfusion).
Tumor Necrosis Factor Alpha (TNF-α) Concentration
3 hours
16.23 pg/ml
Standard Deviation 28.25
14.02 pg/ml
Standard Deviation 28.16
Tumor Necrosis Factor Alpha (TNF-α) Concentration
24 hours
11.55 pg/ml
Standard Deviation 23.60
7.86 pg/ml
Standard Deviation 17.32
Tumor Necrosis Factor Alpha (TNF-α) Concentration
48 hours
9.84 pg/ml
Standard Deviation 24.05
7.69 pg/ml
Standard Deviation 15.98
Tumor Necrosis Factor Alpha (TNF-α) Concentration
96 hours
10.37 pg/ml
Standard Deviation 20.56
5.49 pg/ml
Standard Deviation 7.71

SECONDARY outcome

Timeframe: At screening and up until 96 hours after surgery (surgery takes place 1-7 days after screening)

Population: All subjects randomized.

Systemic IFN-γ concentration from screening until 96 hours after surgery.

Outcome measures

Outcome measures
Measure
Sangvia and Retransfusion
n=26 Participants
Blood collected and retransfused with Sangvia.
Sangvia and no Retransfusion
n=23 Participants
Blood collected with Sangvia but discarded, i.e. not retransfused.
Interferon Gamma (IFN-γ) Concentration
Screening
7.45 pg/ml
Standard Deviation 14.17
8.61 pg/ml
Standard Deviation 18.90
Interferon Gamma (IFN-γ) Concentration
At Randomization (0 hrs)
3.89 pg/ml
Standard Deviation 5.35
7.37 pg/ml
Standard Deviation 15.85
Interferon Gamma (IFN-γ) Concentration
End of transfusion
4.50 pg/ml
Standard Deviation 4.24
NA pg/ml
Standard Deviation NA
Time point End of transfusion only applicable to subjects in the investigational group (Sangvia and retransfusion).
Interferon Gamma (IFN-γ) Concentration
3 hours
4.54 pg/ml
Standard Deviation 5.15
8.31 pg/ml
Standard Deviation 19.15
Interferon Gamma (IFN-γ) Concentration
24 hours
3.94 pg/ml
Standard Deviation 3.12
7.98 pg/ml
Standard Deviation 16.78
Interferon Gamma (IFN-γ) Concentration
48 hours
4.00 pg/ml
Standard Deviation 3.49
5.94 pg/ml
Standard Deviation 7.29
Interferon Gamma (IFN-γ) Concentration
96 hours
4.25 pg/ml
Standard Deviation 3.60
7.14 pg/ml
Standard Deviation 7.18

SECONDARY outcome

Timeframe: After surgery (surgery takes place 1-7 days after screening)

Population: All subjects randomized.

Estimated blood loss during and after surgery.

Outcome measures

Outcome measures
Measure
Sangvia and Retransfusion
n=26 Participants
Blood collected and retransfused with Sangvia.
Sangvia and no Retransfusion
n=23 Participants
Blood collected with Sangvia but discarded, i.e. not retransfused.
Mean Blood Loss Volume
Intra-operative
623 ml
Full Range 444 • Interval 150.0 to 2400.0
742 ml
Interval 200.0 to 2400.0
Mean Blood Loss Volume
Post-operative
392 ml
Interval 0.0 to 1150.0
420 ml
Interval 120.0 to 1525.0
Mean Blood Loss Volume
Total
1015 ml
Interval 150.0 to 3150.0
1162 ml
Interval 350.0 to 2800.0

SECONDARY outcome

Timeframe: Up until 96 hours after surgery (surgery takes place 1-7 days after screening)

Population: All subjects randomized.

Outcome measures

Outcome measures
Measure
Sangvia and Retransfusion
n=26 Participants
Blood collected and retransfused with Sangvia.
Sangvia and no Retransfusion
n=23 Participants
Blood collected with Sangvia but discarded, i.e. not retransfused.
Frequency of Allogenic Blood Transfusion
8 percentage of participants
22 percentage of participants

Adverse Events

Sangvia and Retransfusion

Serious events: 3 serious events
Other events: 23 other events
Deaths: 0 deaths

Sangvia and no Retransfusion

Serious events: 4 serious events
Other events: 17 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Sangvia and Retransfusion
n=26 participants at risk
Blood collected and retransfused with Sangvia.
Sangvia and no Retransfusion
n=23 participants at risk
Blood collected with Sangvia but discarded, i.e. not retransfused.
Infections and infestations
Wound infection
3.8%
1/26 • Number of events 1
0.00%
0/23
Psychiatric disorders
Psychosis
0.00%
0/26
4.3%
1/23 • Number of events 1
Respiratory, thoracic and mediastinal disorders
Bronchial spasm
0.00%
0/26
4.3%
1/23 • Number of events 1
Nervous system disorders
Nerve contusion
0.00%
0/26
4.3%
1/23 • Number of events 1
Musculoskeletal and connective tissue disorders
Leg pain
3.8%
1/26 • Number of events 1
4.3%
1/23 • Number of events 1
Infections and infestations
Wound oozing
3.8%
1/26 • Number of events 1
0.00%
0/23
Infections and infestations
Campylobacter infection
3.8%
1/26 • Number of events 1
0.00%
0/23

Other adverse events

Other adverse events
Measure
Sangvia and Retransfusion
n=26 participants at risk
Blood collected and retransfused with Sangvia.
Sangvia and no Retransfusion
n=23 participants at risk
Blood collected with Sangvia but discarded, i.e. not retransfused.
Gastrointestinal disorders
Nausea
42.3%
11/26 • Number of events 11
26.1%
6/23 • Number of events 6
Cardiac disorders
Dizziness
15.4%
4/26 • Number of events 4
21.7%
5/23 • Number of events 5
Musculoskeletal and connective tissue disorders
Leg pain
11.5%
3/26 • Number of events 3
8.7%
2/23 • Number of events 2
Gastrointestinal disorders
Vomiting
19.2%
5/26 • Number of events 5
8.7%
2/23 • Number of events 2
Gastrointestinal disorders
Constipation
3.8%
1/26 • Number of events 1
13.0%
3/23 • Number of events 3
Renal and urinary disorders
Hematuria
15.4%
4/26 • Number of events 4
0.00%
0/23
Investigations
Decreased hemoglobin
7.7%
2/26 • Number of events 2
4.3%
1/23 • Number of events 1
General disorders
Fever
11.5%
3/26 • Number of events 3
0.00%
0/23
Cardiac disorders
Syncope
7.7%
2/26 • Number of events 2
4.3%
1/23 • Number of events 1

Additional Information

Emma Tällberg, Clinical Research Manager

Wellspect HealthCare

Phone: +46313764000

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place

Restriction type: GT60