Trial Outcomes & Findings for Study to Evaluate the Safety, Tolerability, PK and PD of PB2452 in Healthy Younger, Older and Elderly Subjects (NCT NCT03928353)

NCT ID: NCT03928353

Last Updated: 2024-05-01

Results Overview

An adverse event (AE) is defined as any untoward medical occurrence associated with the use of a drug in humans, whether or not it is considered drug-related. A TEAE is defined as any AE not present before exposure to study drug or any AE already present that worsens in intensity or frequency after exposure to study drug. An SAE/suspected unexpected serious adverse reaction if, in the view of either the investigator or Sponsor, it results in any of the following outcomes: death, life-threatening AE, inpatient hospitalization or prolongation of existing hospitalization, persistent or significant incapacity or substantial disruption of the ability to conduct normal life functions, or congenital anomaly or birth defect. A summary of serious and all other non-serious adverse events, regardless of causality, is located in the Reported Adverse Events module.

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

23 participants

Primary outcome timeframe

Day -3 up to Day 28

Results posted on

2024-05-01

Participant Flow

Healthy, younger, older, and elderly male and female participants were enrolled and randomized in a single center.

Participant milestones

Participant milestones
Measure
Part A - Cohort 1
Older and elderly participants pretreated with ticagrelor + ASA received 18 g of PB2452 intravenously (IV) during the treatment period.
Part A - Cohort 2
Older and elderly participants pretreated with ticagrelor + ASA received 18 g of PB2452 IV during the treatment period. Following completion of Cohort 1, the previous Sponsor instructed the clinical site to administer study drug in the same manner as in Cohort 1 in Cohort 2.
Part A - Placebo (Pooled)
Older and elderly participants pretreated with ticagrelor + ASA received 0.9% sodium chloride IV during the treatment period.
Part B - Cohort 3
Healthy and younger participants pretreated with a high dose of ticagrelor (180 mg BID) received 36 g of PB252 IV during the treatment period.
Part B - Placebo
Healthy and younger participants pretreated with a high dose of ticagrelor (180 mg BID) received 0.9% sodium chloride IV during the treatment period.
Overall Study
STARTED
6
5
4
6
2
Overall Study
COMPLETED
6
5
4
6
2
Overall Study
NOT COMPLETED
0
0
0
0
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Study to Evaluate the Safety, Tolerability, PK and PD of PB2452 in Healthy Younger, Older and Elderly Subjects

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Part A - Cohort 1
n=6 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 18 g of PB2452 IV during the treatment period.
Part A - Cohort 2
n=5 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 18 g of PB2452 IV during the treatment period.
Part A - Placebo
n=4 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 0.9% sodium chloride IV during the treatment period.
Part B - Cohort 3
n=6 Participants
Healthy and younger participants pretreated with a high dose of ticagrelor (180 mg BID) received 36 g of PB252 IV during the treatment period.
Part B - Placebo
n=2 Participants
Healthy and younger participants pretreated with a high dose of ticagrelor (180 mg BID) received 0.9% sodium chloride IV during the treatment period.
Total
n=23 Participants
Total of all reporting groups
Age, Continuous
59.0 years
STANDARD_DEVIATION 7.24 • n=5 Participants
63.8 years
STANDARD_DEVIATION 9.31 • n=7 Participants
60.5 years
STANDARD_DEVIATION 4.65 • n=5 Participants
34.7 years
STANDARD_DEVIATION 8.14 • n=4 Participants
30.5 years
STANDARD_DEVIATION 2.12 • n=21 Participants
51.48 years
STANDARD_DEVIATION 14.76 • n=8 Participants
Sex: Female, Male
Female
4 Participants
n=5 Participants
3 Participants
n=7 Participants
2 Participants
n=5 Participants
1 Participants
n=4 Participants
1 Participants
n=21 Participants
11 Participants
n=8 Participants
Sex: Female, Male
Male
2 Participants
n=5 Participants
2 Participants
n=7 Participants
2 Participants
n=5 Participants
5 Participants
n=4 Participants
1 Participants
n=21 Participants
12 Participants
n=8 Participants
Race/Ethnicity, Customized
Hispanic or Latino
3 Participants
n=5 Participants
0 Participants
n=7 Participants
1 Participants
n=5 Participants
1 Participants
n=4 Participants
1 Participants
n=21 Participants
6 Participants
n=8 Participants
Race/Ethnicity, Customized
Not Hispanic or Latino
3 Participants
n=5 Participants
5 Participants
n=7 Participants
3 Participants
n=5 Participants
5 Participants
n=4 Participants
1 Participants
n=21 Participants
17 Participants
n=8 Participants
Race/Ethnicity, Customized
Black or African American
2 Participants
n=5 Participants
2 Participants
n=7 Participants
0 Participants
n=5 Participants
3 Participants
n=4 Participants
0 Participants
n=21 Participants
7 Participants
n=8 Participants
Race/Ethnicity, Customized
White
4 Participants
n=5 Participants
3 Participants
n=7 Participants
4 Participants
n=5 Participants
3 Participants
n=4 Participants
2 Participants
n=21 Participants
16 Participants
n=8 Participants
Renal Function
Mild (Mild decrease in kidney function)
3 Participants
n=5 Participants
5 Participants
n=7 Participants
2 Participants
n=5 Participants
2 Participants
n=4 Participants
1 Participants
n=21 Participants
13 Participants
n=8 Participants
Renal Function
Normal (Normal kidney function)
3 Participants
n=5 Participants
0 Participants
n=7 Participants
2 Participants
n=5 Participants
4 Participants
n=4 Participants
1 Participants
n=21 Participants
10 Participants
n=8 Participants

PRIMARY outcome

Timeframe: Day -3 up to Day 28

Population: All participants who received any amount of study drug.

An adverse event (AE) is defined as any untoward medical occurrence associated with the use of a drug in humans, whether or not it is considered drug-related. A TEAE is defined as any AE not present before exposure to study drug or any AE already present that worsens in intensity or frequency after exposure to study drug. An SAE/suspected unexpected serious adverse reaction if, in the view of either the investigator or Sponsor, it results in any of the following outcomes: death, life-threatening AE, inpatient hospitalization or prolongation of existing hospitalization, persistent or significant incapacity or substantial disruption of the ability to conduct normal life functions, or congenital anomaly or birth defect. A summary of serious and all other non-serious adverse events, regardless of causality, is located in the Reported Adverse Events module.

Outcome measures

Outcome measures
Measure
Part A - Cohort 1
n=6 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 18 g of PB2452 IV during the treatment period.
Part A - Cohort 2
n=5 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 18 g of PB2452 IV during the treatment period.
Part A - Cohort 1-2 (Pooled)
n=11 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 18 g of PB2452 IV during the treatment period.
Part A - Placebo (Pooled)
n=4 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 0.9% sodium chloride IV during the treatment period.
Part B - Cohort 3
n=6 Participants
Healthy and younger participants pretreated with a high dose of ticagrelor (180 mg BID) received 36 g of PB252 IV during the treatment period.
Part B - Placebo
n=2 Participants
Healthy and younger participants pretreated with a high dose of ticagrelor (180 mg BID) received 0.9% sodium chloride IV during the treatment period.
Number Of Participants With Treatment-emergent Adverse Events (TEAEs) And Serious Adverse Events (SAEs)
TEAEs
1 Participants
2 Participants
3 Participants
3 Participants
4 Participants
1 Participants
Number Of Participants With Treatment-emergent Adverse Events (TEAEs) And Serious Adverse Events (SAEs)
SAEs
0 Participants
1 Participants
1 Participants
0 Participants
0 Participants
0 Participants

PRIMARY outcome

Timeframe: Day -45 up to Day 28

Population: All participants who received any amount of study drug.

Number of participants with clinically significant abnormal laboratory findings for hematology, coagulation, serum chemistry, and urinalysis.

Outcome measures

Outcome measures
Measure
Part A - Cohort 1
n=6 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 18 g of PB2452 IV during the treatment period.
Part A - Cohort 2
n=5 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 18 g of PB2452 IV during the treatment period.
Part A - Cohort 1-2 (Pooled)
n=4 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 18 g of PB2452 IV during the treatment period.
Part A - Placebo (Pooled)
n=6 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 0.9% sodium chloride IV during the treatment period.
Part B - Cohort 3
n=2 Participants
Healthy and younger participants pretreated with a high dose of ticagrelor (180 mg BID) received 36 g of PB252 IV during the treatment period.
Part B - Placebo
Healthy and younger participants pretreated with a high dose of ticagrelor (180 mg BID) received 0.9% sodium chloride IV during the treatment period.
Number of Participants With Clinical Laboratory Abnormalities
0 Participants
0 Participants
0 Participants
0 Participants
0 Participants

PRIMARY outcome

Timeframe: Baseline

Population: All participants who received any amount of study drug.

Outcome measures

Outcome measures
Measure
Part A - Cohort 1
n=6 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 18 g of PB2452 IV during the treatment period.
Part A - Cohort 2
n=5 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 18 g of PB2452 IV during the treatment period.
Part A - Cohort 1-2 (Pooled)
n=11 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 18 g of PB2452 IV during the treatment period.
Part A - Placebo (Pooled)
n=4 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 0.9% sodium chloride IV during the treatment period.
Part B - Cohort 3
n=6 Participants
Healthy and younger participants pretreated with a high dose of ticagrelor (180 mg BID) received 36 g of PB252 IV during the treatment period.
Part B - Placebo
n=2 Participants
Healthy and younger participants pretreated with a high dose of ticagrelor (180 mg BID) received 0.9% sodium chloride IV during the treatment period.
Mean Diastolic Blood Pressure at Baseline
74.17 mmHg
Standard Deviation 8.42
67.60 mmHg
Standard Deviation 7.44
71.18 mmHg
Standard Deviation 8.33
75.25 mmHg
Standard Deviation 3.40
63.83 mmHg
Standard Deviation 5.91
61.50 mmHg
Standard Deviation 2.12

PRIMARY outcome

Timeframe: Day 1 (10, 20, 30, 45, and 60 minutes post-dose), Day 2, Day 3, Day 7, and Day 28

Population: All participants who received any amount of study drug.

Diastolic blood pressure measurements were measured at specific time points.

Outcome measures

Outcome measures
Measure
Part A - Cohort 1
n=6 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 18 g of PB2452 IV during the treatment period.
Part A - Cohort 2
n=5 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 18 g of PB2452 IV during the treatment period.
Part A - Cohort 1-2 (Pooled)
n=11 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 18 g of PB2452 IV during the treatment period.
Part A - Placebo (Pooled)
n=4 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 0.9% sodium chloride IV during the treatment period.
Part B - Cohort 3
n=6 Participants
Healthy and younger participants pretreated with a high dose of ticagrelor (180 mg BID) received 36 g of PB252 IV during the treatment period.
Part B - Placebo
n=2 Participants
Healthy and younger participants pretreated with a high dose of ticagrelor (180 mg BID) received 0.9% sodium chloride IV during the treatment period.
Percent Change In Diastolic Blood Pressure From Baseline To Day 28
Change from Baseline - Day 1/ 10 Minutes Postdose
-2.50 Percent change in DBP
Standard Deviation 9.15
-1.75 Percent change in DBP
Standard Deviation 5.91
-2.13 Percent change in DBP
Standard Deviation 7.14
-4.00 Percent change in DBP
Standard Deviation 9.90
4.00 Percent change in DBP
Standard Deviation 6.69
2.50 Percent change in DBP
Standard Deviation 7.78
Percent Change In Diastolic Blood Pressure From Baseline To Day 28
Change from Baseline - Day 1/ 20 Minutes Postdose
-4.33 Percent change in DBP
Standard Deviation 5.65
-4.75 Percent change in DBP
Standard Deviation 0.96
-4.50 Percent change in DBP
Standard Deviation 4.25
-5.67 Percent change in DBP
Standard Deviation 1.53
3.50 Percent change in DBP
Standard Deviation 8.83
1.00 Percent change in DBP
Standard Deviation 8.49
Percent Change In Diastolic Blood Pressure From Baseline To Day 28
Change from Baseline - Day 1/ 30 Minutes Postdose
-3.17 Percent change in DBP
Standard Deviation 8.33
-3.80 Percent change in DBP
Standard Deviation 2.59
-3.45 Percent change in DBP
Standard Deviation 6.12
-2.00 Percent change in DBP
Standard Deviation 2.83
9.00 Percent change in DBP
Standard Deviation 3.35
5.50 Percent change in DBP
Standard Deviation 3.54
Percent Change In Diastolic Blood Pressure From Baseline To Day 28
Change from Baseline - Day 3/ 48 Hour
-5.67 Percent change in DBP
Standard Deviation 14.39
-3.20 Percent change in DBP
Standard Deviation 5.63
-4.55 Percent change in DBP
Standard Deviation 10.86
-7.75 Percent change in DBP
Standard Deviation 10.81
2.67 Percent change in DBP
Standard Deviation 6.89
-1.00 Percent change in DBP
Standard Deviation 8.49
Percent Change In Diastolic Blood Pressure From Baseline To Day 28
Change from Baseline - Day 7
-6.00 Percent change in DBP
Standard Deviation 9.88
0.40 Percent change in DBP
Standard Deviation 6.91
-3.09 Percent change in DBP
Standard Deviation 8.89
-9.00 Percent change in DBP
Standard Deviation 6.68
6.50 Percent change in DBP
Standard Deviation 5.58
7.50 Percent change in DBP
Standard Deviation 7.78
Percent Change In Diastolic Blood Pressure From Baseline To Day 28
Change from Baseline - Day 28
4.67 Percent change in DBP
Standard Deviation 9.54
0.40 Percent change in DBP
Standard Deviation 5.94
2.73 Percent change in DBP
Standard Deviation 8.04
-3.75 Percent change in DBP
Standard Deviation 12.31
5.17 Percent change in DBP
Standard Deviation 7.31
10.00 Percent change in DBP
Standard Deviation 4.24
Percent Change In Diastolic Blood Pressure From Baseline To Day 28
Change from Baseline - Day 1/ 45 Minutes Postdose
-2.00 Percent change in DBP
Standard Deviation 2.53
-3.20 Percent change in DBP
Standard Deviation 4.76
-2.55 Percent change in DBP
Standard Deviation 3.56
-2.00 Percent change in DBP
Standard Deviation 7.39
3.83 Percent change in DBP
Standard Deviation 7.68
0 Percent change in DBP
Standard Deviation 9.90
Percent Change In Diastolic Blood Pressure From Baseline To Day 28
Change from Baseline Day 1/ 1 Hour Postdose
-3.67 Percent change in DBP
Standard Deviation 9.16
0.40 Percent change in DBP
Standard Deviation 6.58
-1.82 Percent change in DBP
Standard Deviation 7.99
-4.25 Percent change in DBP
Standard Deviation 9.98
4.67 Percent change in DBP
Standard Deviation 4.68
3.50 Percent change in DBP
Standard Deviation 13.44
Percent Change In Diastolic Blood Pressure From Baseline To Day 28
Change from Baseline - Day 2/ 24 Hour
-6.17 Percent change in DBP
Standard Deviation 8.54
-7.40 Percent change in DBP
Standard Deviation 4.62
-6.73 Percent change in DBP
Standard Deviation 6.74
-8.50 Percent change in DBP
Standard Deviation 6.03
-3.33 Percent change in DBP
Standard Deviation 4.68
1.50 Percent change in DBP
Standard Deviation 3.54

PRIMARY outcome

Timeframe: Baseline

Population: All participants who received any amount of study drug.

Outcome measures

Outcome measures
Measure
Part A - Cohort 1
n=6 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 18 g of PB2452 IV during the treatment period.
Part A - Cohort 2
n=5 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 18 g of PB2452 IV during the treatment period.
Part A - Cohort 1-2 (Pooled)
n=11 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 18 g of PB2452 IV during the treatment period.
Part A - Placebo (Pooled)
n=4 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 0.9% sodium chloride IV during the treatment period.
Part B - Cohort 3
n=6 Participants
Healthy and younger participants pretreated with a high dose of ticagrelor (180 mg BID) received 36 g of PB252 IV during the treatment period.
Part B - Placebo
n=2 Participants
Healthy and younger participants pretreated with a high dose of ticagrelor (180 mg BID) received 0.9% sodium chloride IV during the treatment period.
Mean Systolic Blood Pressure at Baseline
128.33 mmHg
Standard Deviation 17.15
115.40 mmHg
Standard Deviation 11.08
122.45 mmHg
Standard Deviation 15.55
119.00 mmHg
Standard Deviation 17.80
113.14 mmHg
Standard Deviation 8.75
108.50 mmHg
Standard Deviation 0.71

PRIMARY outcome

Timeframe: Day 1 (10, 20, 30, 45, and 60 minutes post-dose), Day 2, Day 3, Day 7, and Day 28

Population: All participants who received any amount of study drug.

Systolic blood pressure measurements were measured at specific time points.

Outcome measures

Outcome measures
Measure
Part A - Cohort 1
n=6 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 18 g of PB2452 IV during the treatment period.
Part A - Cohort 2
n=5 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 18 g of PB2452 IV during the treatment period.
Part A - Cohort 1-2 (Pooled)
n=11 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 18 g of PB2452 IV during the treatment period.
Part A - Placebo (Pooled)
n=4 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 0.9% sodium chloride IV during the treatment period.
Part B - Cohort 3
n=6 Participants
Healthy and younger participants pretreated with a high dose of ticagrelor (180 mg BID) received 36 g of PB252 IV during the treatment period.
Part B - Placebo
n=2 Participants
Healthy and younger participants pretreated with a high dose of ticagrelor (180 mg BID) received 0.9% sodium chloride IV during the treatment period.
Percent Change In Systolic Blood Pressure From Baseline To Day 28
Change from Baseline - Day 28
1.50 Percent change in SBP
Standard Deviation 15.14
9.80 Percent change in SBP
Standard Deviation 10.96
5.27 Percent change in SBP
Standard Deviation 13.47
0 Percent change in SBP
Standard Deviation 10.92
9.67 Percent change in SBP
Standard Deviation 5.68
12.50 Percent change in SBP
Standard Deviation 4.95
Percent Change In Systolic Blood Pressure From Baseline To Day 28
Change from Baseline - Day 3/ 48 Hour
-17.17 Percent change in SBP
Standard Deviation 14.41
-4.00 Percent change in SBP
Standard Deviation 10.89
-11.18 Percent change in SBP
Standard Deviation 14.09
-9.00 Percent change in SBP
Standard Deviation 10.36
2.00 Percent change in SBP
Standard Deviation 4.10
1.50 Percent change in SBP
Standard Deviation 3.54
Percent Change In Systolic Blood Pressure From Baseline To Day 28
Change from Baseline - Day 1/ 10 Minutes Postdose
-6.75 Percent change in SBP
Standard Deviation 4.11
0.75 Percent change in SBP
Standard Deviation 5.85
-3.00 Percent change in SBP
Standard Deviation 6.16
-7.50 Percent change in SBP
Standard Deviation 20.51
5.83 Percent change in SBP
Standard Deviation 7.31
2.00 Percent change in SBP
Standard Deviation 11.31
Percent Change In Systolic Blood Pressure From Baseline To Day 28
Change from Baseline - Day 1/ 20 Minutes Postdose
-7.67 Percent change in SBP
Standard Deviation 13.98
2.75 Percent change in SBP
Standard Deviation 9.18
-3.50 Percent change in SBP
Standard Deviation 12.87
-6.33 Percent change in SBP
Standard Deviation 4.93
2.83 Percent change in SBP
Standard Deviation 5.81
-0.50 Percent change in SBP
Standard Deviation 0.71
Percent Change In Systolic Blood Pressure From Baseline To Day 28
Change from Baseline - Day 1/ 30 Minutes Postdose
-5.33 Percent change in SBP
Standard Deviation 14.07
-0.20 Percent change in SBP
Standard Deviation 4.09
-3.00 Percent change in SBP
Standard Deviation 10.62
-5.50 Percent change in SBP
Standard Deviation 9.19
-0.33 Percent change in SBP
Standard Deviation 4.63
2.50 Percent change in SBP
Standard Deviation 9.19
Percent Change In Systolic Blood Pressure From Baseline To Day 28
Change from Baseline - Day 1/ 45 Minutes Postdose
-7.33 Percent change in SBP
Standard Deviation 12.88
-3.80 Percent change in SBP
Standard Deviation 4.15
-5.73 Percent change in SBP
Standard Deviation 9.65
-2.25 Percent change in SBP
Standard Deviation 12.12
4.00 Percent change in SBP
Standard Deviation 5.59
3.50 Percent change in SBP
Standard Deviation 9.19
Percent Change In Systolic Blood Pressure From Baseline To Day 28
Change from Baseline Day 1/ 1 Hour Postdose
-8.00 Percent change in SBP
Standard Deviation 11.47
5.20 Percent change in SBP
Standard Deviation 14.31
-2.00 Percent change in SBP
Standard Deviation 13.97
1.00 Percent change in SBP
Standard Deviation 20.05
0.67 Percent change in SBP
Standard Deviation 5.89
-0.50 Percent change in SBP
Standard Deviation 12.02
Percent Change In Systolic Blood Pressure From Baseline To Day 28
Change from Baseline - Day 2/ 24 Hour
-14.00 Percent change in SBP
Standard Deviation 16.14
-5.60 Percent change in SBP
Standard Deviation 10.24
-10.18 Percent change in SBP
Standard Deviation 13.83
-2.75 Percent change in SBP
Standard Deviation 13.52
-2.33 Percent change in SBP
Standard Deviation 5.99
6.00 Percent change in SBP
Standard Deviation 1.41
Percent Change In Systolic Blood Pressure From Baseline To Day 28
Change from Baseline - Day 7
-6.33 Percent change in SBP
Standard Deviation 13.87
2.80 Percent change in SBP
Standard Deviation 14.55
-2.18 Percent change in SBP
Standard Deviation 14.27
-12.00 Percent change in SBP
Standard Deviation 12.73
6.67 Percent change in SBP
Standard Deviation 12.48
3.00 Percent change in SBP
Standard Deviation 7.07

PRIMARY outcome

Timeframe: Baseline

Population: All participants who received any amount of study drug.

Outcome measures

Outcome measures
Measure
Part A - Cohort 1
n=6 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 18 g of PB2452 IV during the treatment period.
Part A - Cohort 2
n=5 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 18 g of PB2452 IV during the treatment period.
Part A - Cohort 1-2 (Pooled)
n=11 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 18 g of PB2452 IV during the treatment period.
Part A - Placebo (Pooled)
n=4 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 0.9% sodium chloride IV during the treatment period.
Part B - Cohort 3
n=6 Participants
Healthy and younger participants pretreated with a high dose of ticagrelor (180 mg BID) received 36 g of PB252 IV during the treatment period.
Part B - Placebo
n=2 Participants
Healthy and younger participants pretreated with a high dose of ticagrelor (180 mg BID) received 0.9% sodium chloride IV during the treatment period.
Mean Oral Body Temperature at Baseline
36.17 Degrees Celcius
Standard Deviation 0.34
35.88 Degrees Celcius
Standard Deviation 0.15
36.04 Degrees Celcius
Standard Deviation 0.30
36.25 Degrees Celcius
Standard Deviation 0.24
36.20 Degrees Celcius
Standard Deviation 0.38
36.35 Degrees Celcius
Standard Deviation 0.07

PRIMARY outcome

Timeframe: Day 1 (45 and 60 minutes post-dose), Day 2, Day 3, Day 7, and Day 28

Population: All participants who received any amount of study drug.

Body temperature measurements were measured at specific time points.

Outcome measures

Outcome measures
Measure
Part A - Cohort 1
n=6 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 18 g of PB2452 IV during the treatment period.
Part A - Cohort 2
n=5 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 18 g of PB2452 IV during the treatment period.
Part A - Cohort 1-2 (Pooled)
n=11 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 18 g of PB2452 IV during the treatment period.
Part A - Placebo (Pooled)
n=4 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 0.9% sodium chloride IV during the treatment period.
Part B - Cohort 3
n=6 Participants
Healthy and younger participants pretreated with a high dose of ticagrelor (180 mg BID) received 36 g of PB252 IV during the treatment period.
Part B - Placebo
n=2 Participants
Healthy and younger participants pretreated with a high dose of ticagrelor (180 mg BID) received 0.9% sodium chloride IV during the treatment period.
Percent Change In Oral Body Temperature From Baseline To Day 28
Change from Baseline - Day 1/ 45 Minutes Postdose
0.18 Percent change in oral body temperature
Standard Deviation 0.53
0 Percent change in oral body temperature
Standard Deviation 0.14
0.11 Percent change in oral body temperature
Standard Deviation 0.41
0.15 Percent change in oral body temperature
Standard Deviation 0.34
0.13 Percent change in oral body temperature
Standard Deviation 0.23
-0.10 Percent change in oral body temperature
Standard Deviation 0.28
Percent Change In Oral Body Temperature From Baseline To Day 28
Change from Baseline Day 1/ 1 Hour Postdose
-0.10 Percent change in oral body temperature
Standard Deviation 0.32
0 Percent change in oral body temperature
Standard Deviation 0.21
-0.05 Percent change in oral body temperature
Standard Deviation 0.27
0.15 Percent change in oral body temperature
Standard Deviation 0.26
0.20 Percent change in oral body temperature
Standard Deviation 0.17
0.10 Percent change in oral body temperature
Standard Deviation 0.42
Percent Change In Oral Body Temperature From Baseline To Day 28
Change from Baseline - Day 2/ 24 Hour
0.05 Percent change in oral body temperature
Standard Deviation 0.35
0.10 Percent change in oral body temperature
Standard Deviation 0.29
0.07 Percent change in oral body temperature
Standard Deviation 0.31
0.10 Percent change in oral body temperature
Standard Deviation 0.32
-0.03 Percent change in oral body temperature
Standard Deviation 0.43
-0.05 Percent change in oral body temperature
Standard Deviation 0.07
Percent Change In Oral Body Temperature From Baseline To Day 28
Change from Baseline - Day 3/ 48 Hour
-0.05 Percent change in oral body temperature
Standard Deviation 0.50
0.24 Percent change in oral body temperature
Standard Deviation 0.05
0.08 Percent change in oral body temperature
Standard Deviation 0.39
0.25 Percent change in oral body temperature
Standard Deviation 0.17
0.17 Percent change in oral body temperature
Standard Deviation 0.14
0 Percent change in oral body temperature
Standard Deviation 0.28
Percent Change In Oral Body Temperature From Baseline To Day 28
Change from Baseline - Day 7
0.02 Percent change in oral body temperature
Standard Deviation 0.34
0.44 Percent change in oral body temperature
Standard Deviation 0.29
0.21 Percent change in oral body temperature
Standard Deviation 0.38
0.07 Percent change in oral body temperature
Standard Deviation 0.19
0.25 Percent change in oral body temperature
Standard Deviation 0.29
0 Percent change in oral body temperature
Standard Deviation 0.28
Percent Change In Oral Body Temperature From Baseline To Day 28
Change from Baseline - Day 28
-0.33 Percent change in oral body temperature
Standard Deviation 0.34
0.34 Percent change in oral body temperature
Standard Deviation 0.15
-0.03 Percent change in oral body temperature
Standard Deviation 0.44
-0.15 Percent change in oral body temperature
Standard Deviation 0.19
0.30 Percent change in oral body temperature
Standard Deviation 0.23
-0.35 Percent change in oral body temperature
Standard Deviation 0.35

PRIMARY outcome

Timeframe: Baseline

Population: All participants who received any amount of study drug.

Outcome measures

Outcome measures
Measure
Part A - Cohort 1
n=6 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 18 g of PB2452 IV during the treatment period.
Part A - Cohort 2
n=5 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 18 g of PB2452 IV during the treatment period.
Part A - Cohort 1-2 (Pooled)
n=11 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 18 g of PB2452 IV during the treatment period.
Part A - Placebo (Pooled)
n=4 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 0.9% sodium chloride IV during the treatment period.
Part B - Cohort 3
n=6 Participants
Healthy and younger participants pretreated with a high dose of ticagrelor (180 mg BID) received 36 g of PB252 IV during the treatment period.
Part B - Placebo
n=2 Participants
Healthy and younger participants pretreated with a high dose of ticagrelor (180 mg BID) received 0.9% sodium chloride IV during the treatment period.
Mean Respiratory Rate at Baseline
14.33 Breaths per minute
Standard Deviation 1.51
13.60 Breaths per minute
Standard Deviation 2.61
14.00 Breaths per minute
Standard Deviation 2.00
12.50 Breaths per minute
Standard Deviation 2.52
15.67 Breaths per minute
Standard Deviation 2.94
17.00 Breaths per minute
Standard Deviation 1.41

PRIMARY outcome

Timeframe: Day 1 (45 and 60 minutes post-dose), Day 2, Day 3, Day 7, and Day 28

Population: All participants who received any amount of study drug.

Respiratory rate measurements were measured at specific time points.

Outcome measures

Outcome measures
Measure
Part A - Cohort 1
n=6 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 18 g of PB2452 IV during the treatment period.
Part A - Cohort 2
n=5 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 18 g of PB2452 IV during the treatment period.
Part A - Cohort 1-2 (Pooled)
n=11 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 18 g of PB2452 IV during the treatment period.
Part A - Placebo (Pooled)
n=4 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 0.9% sodium chloride IV during the treatment period.
Part B - Cohort 3
n=6 Participants
Healthy and younger participants pretreated with a high dose of ticagrelor (180 mg BID) received 36 g of PB252 IV during the treatment period.
Part B - Placebo
n=2 Participants
Healthy and younger participants pretreated with a high dose of ticagrelor (180 mg BID) received 0.9% sodium chloride IV during the treatment period.
Percent Change In Respiratory Rate From Baseline To Day 28
Change from Baseline - Day 28
-0.33 Percent change in respiratory rate
Standard Deviation 3.44
0.80 Percent change in respiratory rate
Standard Deviation 3.35
0.18 Percent change in respiratory rate
Standard Deviation 3.28
1.00 Percent change in respiratory rate
Standard Deviation 2.00
-3.67 Percent change in respiratory rate
Standard Deviation 4.08
-6.00 Percent change in respiratory rate
Standard Deviation 2.83
Percent Change In Respiratory Rate From Baseline To Day 28
Change from Baseline - Day 1/ 45 Minutes Postdose
-3.33 Percent change in respiratory rate
Standard Deviation 1.63
0.50 Percent change in respiratory rate
Standard Deviation 3.79
-1.80 Percent change in respiratory rate
Standard Deviation 3.19
-0.50 Percent change in respiratory rate
Standard Deviation 3.00
-1.00 Percent change in respiratory rate
Standard Deviation 2.10
-3.00 Percent change in respiratory rate
Standard Deviation 1.41
Percent Change In Respiratory Rate From Baseline To Day 28
Change from Baseline Day 1/ 1 Hour Postdose
-2.00 Percent change in respiratory rate
Standard Deviation 1.26
-0.40 Percent change in respiratory rate
Standard Deviation 3.85
-1.27 Percent change in respiratory rate
Standard Deviation 2.72
1.00 Percent change in respiratory rate
Standard Deviation 2.58
-4.33 Percent change in respiratory rate
Standard Deviation 3.44
-4.00 Percent change in respiratory rate
Standard Deviation 2.83
Percent Change In Respiratory Rate From Baseline To Day 28
Change from Baseline - Day 2/ 24 Hour
-0.67 Percent change in respiratory rate
Standard Deviation 3.27
2.40 Percent change in respiratory rate
Standard Deviation 2.19
0.73 Percent change in respiratory rate
Standard Deviation 3.13
1.50 Percent change in respiratory rate
Standard Deviation 1.91
-1.00 Percent change in respiratory rate
Standard Deviation 3.29
-4.00 Percent change in respiratory rate
Standard Deviation 2.83
Percent Change In Respiratory Rate From Baseline To Day 28
Change from Baseline - Day 3/ 48 Hour
-2.00 Percent change in respiratory rate
Standard Deviation 2.19
0.40 Percent change in respiratory rate
Standard Deviation 3.29
-0.91 Percent change in respiratory rate
Standard Deviation 2.88
0.50 Percent change in respiratory rate
Standard Deviation 1.00
-2.67 Percent change in respiratory rate
Standard Deviation 2.07
-3.00 Percent change in respiratory rate
Standard Deviation 1.41
Percent Change In Respiratory Rate From Baseline To Day 28
Change from Baseline - Day 7
-0.33 Percent change in respiratory rate
Standard Deviation 2.66
0.40 Percent change in respiratory rate
Standard Deviation 2.61
0 Percent change in respiratory rate
Standard Deviation 2.53
1.00 Percent change in respiratory rate
Standard Deviation 1.15
-2.00 Percent change in respiratory rate
Standard Deviation 2.53
-1.00 Percent change in respiratory rate
Standard Deviation 1.41

PRIMARY outcome

Timeframe: Baseline

Population: All participants who received any amount of study drug.

Outcome measures

Outcome measures
Measure
Part A - Cohort 1
n=6 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 18 g of PB2452 IV during the treatment period.
Part A - Cohort 2
n=5 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 18 g of PB2452 IV during the treatment period.
Part A - Cohort 1-2 (Pooled)
n=11 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 18 g of PB2452 IV during the treatment period.
Part A - Placebo (Pooled)
n=4 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 0.9% sodium chloride IV during the treatment period.
Part B - Cohort 3
n=6 Participants
Healthy and younger participants pretreated with a high dose of ticagrelor (180 mg BID) received 36 g of PB252 IV during the treatment period.
Part B - Placebo
n=2 Participants
Healthy and younger participants pretreated with a high dose of ticagrelor (180 mg BID) received 0.9% sodium chloride IV during the treatment period.
Mean Heart Rate at Baseline
70.17 Beats per minute
Standard Deviation 8.04
60.20 Beats per minute
Standard Deviation 5.89
65.64 Beats per minute
Standard Deviation 8.56
63.00 Beats per minute
Standard Deviation 10.74
65.50 Beats per minute
Standard Deviation 5.21
78.00 Beats per minute
Standard Deviation 29.70

PRIMARY outcome

Timeframe: Baseline, Day 1 (10, 20, 30, 45, and 60 minutes post-dose), Day 2, Day 3, Day 7, and Day 28

Population: All participants who received any amount of study drug.

Heart rate measurements were measured at specific time points.

Outcome measures

Outcome measures
Measure
Part A - Cohort 1
n=6 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 18 g of PB2452 IV during the treatment period.
Part A - Cohort 2
n=5 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 18 g of PB2452 IV during the treatment period.
Part A - Cohort 1-2 (Pooled)
n=11 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 18 g of PB2452 IV during the treatment period.
Part A - Placebo (Pooled)
n=4 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 0.9% sodium chloride IV during the treatment period.
Part B - Cohort 3
n=6 Participants
Healthy and younger participants pretreated with a high dose of ticagrelor (180 mg BID) received 36 g of PB252 IV during the treatment period.
Part B - Placebo
n=2 Participants
Healthy and younger participants pretreated with a high dose of ticagrelor (180 mg BID) received 0.9% sodium chloride IV during the treatment period.
Percent Change In Heart Rate From Baseline To Day 28
Change from Baseline - Day 1/ 10 Minutes Postdose
-5.25 Percent change in heart rate
Standard Deviation 11.24
0.50 Percent change in heart rate
Standard Deviation 6.61
-2.38 Percent change in heart rate
Standard Deviation 9.07
-4.00 Percent change in heart rate
Standard Deviation 7.07
-3.17 Percent change in heart rate
Standard Deviation 6.68
-16.00 Percent change in heart rate
Standard Deviation 21.21
Percent Change In Heart Rate From Baseline To Day 28
Change from Baseline - Day 1/ 20 Minutes Postdose
-4.17 Percent change in heart rate
Standard Deviation 9.41
-0.50 Percent change in heart rate
Standard Deviation 3.79
-2.70 Percent change in heart rate
Standard Deviation 7.59
0 Percent change in heart rate
Standard Deviation 9.85
-3.17 Percent change in heart rate
Standard Deviation 3.19
-11.50 Percent change in heart rate
Standard Deviation 16.26
Percent Change In Heart Rate From Baseline To Day 28
Change from Baseline - Day 1/ 30 Minutes Postdose
-4.50 Percent change in heart rate
Standard Deviation 8.53
-1.20 Percent change in heart rate
Standard Deviation 4.60
-3.00 Percent change in heart rate
Standard Deviation 6.91
-0.50 Percent change in heart rate
Standard Deviation 9.19
-4.83 Percent change in heart rate
Standard Deviation 5.95
-7.50 Percent change in heart rate
Standard Deviation 24.75
Percent Change In Heart Rate From Baseline To Day 28
Change from Baseline - Day 1/ 45 Minutes Postdose
-3.83 Percent change in heart rate
Standard Deviation 8.54
-1.80 Percent change in heart rate
Standard Deviation 4.44
-2.91 Percent change in heart rate
Standard Deviation 6.74
2.25 Percent change in heart rate
Standard Deviation 4.50
-3.83 Percent change in heart rate
Standard Deviation 4.36
-9.00 Percent change in heart rate
Standard Deviation 18.38
Percent Change In Heart Rate From Baseline To Day 28
Change from Baseline Day 1/ 1 Hour Postdose
-3.17 Percent change in heart rate
Standard Deviation 8.50
0 Percent change in heart rate
Standard Deviation 5.15
-1.73 Percent change in heart rate
Standard Deviation 7.03
1.75 Percent change in heart rate
Standard Deviation 7.41
-2.67 Percent change in heart rate
Standard Deviation 4.72
-13.00 Percent change in heart rate
Standard Deviation 18.38
Percent Change In Heart Rate From Baseline To Day 28
Change from Baseline - Day 2/ 24 Hour
-1.17 Percent change in heart rate
Standard Deviation 10.46
1.40 Percent change in heart rate
Standard Deviation 3.78
0 Percent change in heart rate
Standard Deviation 7.89
5.25 Percent change in heart rate
Standard Deviation 3.20
-0.33 Percent change in heart rate
Standard Deviation 6.50
-12.50 Percent change in heart rate
Standard Deviation 17.68
Percent Change In Heart Rate From Baseline To Day 28
Change from Baseline - Day 3/ 48 Hour
-3.50 Percent change in heart rate
Standard Deviation 8.64
1.80 Percent change in heart rate
Standard Deviation 6.69
-1.09 Percent change in heart rate
Standard Deviation 7.93
2.25 Percent change in heart rate
Standard Deviation 5.74
-1.00 Percent change in heart rate
Standard Deviation 4.94
-12.50 Percent change in heart rate
Standard Deviation 12.02
Percent Change In Heart Rate From Baseline To Day 28
Change from Baseline - Day 7
-1.67 Percent change in heart rate
Standard Deviation 9.07
5.40 Percent change in heart rate
Standard Deviation 5.68
1.55 Percent change in heart rate
Standard Deviation 8.23
0 Percent change in heart rate
Standard Deviation 12.19
-4.00 Percent change in heart rate
Standard Deviation 5.55
-15.50 Percent change in heart rate
Standard Deviation 21.92
Percent Change In Heart Rate From Baseline To Day 28
Change from Baseline - Day 28
-5.17 Percent change in heart rate
Standard Deviation 7.52
1.40 Percent change in heart rate
Standard Deviation 6.62
-2.18 Percent change in heart rate
Standard Deviation 7.59
-1.75 Percent change in heart rate
Standard Deviation 13.62
-4.33 Percent change in heart rate
Standard Deviation 6.59
-18.00 Percent change in heart rate
Standard Deviation 24.04

PRIMARY outcome

Timeframe: Up to Day 28

Population: All participants who received any amount of study drug.

Number of participants per cohort with clinically significant ECG findings.

Outcome measures

Outcome measures
Measure
Part A - Cohort 1
n=6 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 18 g of PB2452 IV during the treatment period.
Part A - Cohort 2
n=5 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 18 g of PB2452 IV during the treatment period.
Part A - Cohort 1-2 (Pooled)
n=4 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 18 g of PB2452 IV during the treatment period.
Part A - Placebo (Pooled)
n=6 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 0.9% sodium chloride IV during the treatment period.
Part B - Cohort 3
n=2 Participants
Healthy and younger participants pretreated with a high dose of ticagrelor (180 mg BID) received 36 g of PB252 IV during the treatment period.
Part B - Placebo
Healthy and younger participants pretreated with a high dose of ticagrelor (180 mg BID) received 0.9% sodium chloride IV during the treatment period.
Incidence Of Clinically Significant 12-Lead Electrocardiogram (ECG) Findings
0 Participants
1 Participants
0 Participants
0 Participants
0 Participants

PRIMARY outcome

Timeframe: Day -3, Day 1, Day 7, and Day 28

Population: All participants who received any amount of study drug.

Number of participants who developed ADAs to PB2452.

Outcome measures

Outcome measures
Measure
Part A - Cohort 1
n=6 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 18 g of PB2452 IV during the treatment period.
Part A - Cohort 2
n=5 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 18 g of PB2452 IV during the treatment period.
Part A - Cohort 1-2 (Pooled)
n=11 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 18 g of PB2452 IV during the treatment period.
Part A - Placebo (Pooled)
n=4 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 0.9% sodium chloride IV during the treatment period.
Part B - Cohort 3
n=6 Participants
Healthy and younger participants pretreated with a high dose of ticagrelor (180 mg BID) received 36 g of PB252 IV during the treatment period.
Part B - Placebo
n=2 Participants
Healthy and younger participants pretreated with a high dose of ticagrelor (180 mg BID) received 0.9% sodium chloride IV during the treatment period.
Participants Experiencing Anti-drug Antibodies (ADAs)
Day -3
2 Participants
0 Participants
2 Participants
0 Participants
0 Participants
0 Participants
Participants Experiencing Anti-drug Antibodies (ADAs)
Day 1
0 Participants
0 Participants
0 Participants
0 Participants
0 Participants
0 Participants
Participants Experiencing Anti-drug Antibodies (ADAs)
Day 7
2 Participants
0 Participants
2 Participants
0 Participants
1 Participants
0 Participants
Participants Experiencing Anti-drug Antibodies (ADAs)
Day 28
2 Participants
0 Participants
2 Participants
0 Participants
1 Participants
0 Participants

PRIMARY outcome

Timeframe: Baseline through Day 28

Population: All participants who received any amount of study drug.

Participants with adverse events noted during physical exam between baseline and end of study.

Outcome measures

Outcome measures
Measure
Part A - Cohort 1
n=6 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 18 g of PB2452 IV during the treatment period.
Part A - Cohort 2
n=5 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 18 g of PB2452 IV during the treatment period.
Part A - Cohort 1-2 (Pooled)
n=4 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 18 g of PB2452 IV during the treatment period.
Part A - Placebo (Pooled)
n=6 Participants
Older and elderly participants pretreated with ticagrelor + ASA received 0.9% sodium chloride IV during the treatment period.
Part B - Cohort 3
n=2 Participants
Healthy and younger participants pretreated with a high dose of ticagrelor (180 mg BID) received 36 g of PB252 IV during the treatment period.
Part B - Placebo
Healthy and younger participants pretreated with a high dose of ticagrelor (180 mg BID) received 0.9% sodium chloride IV during the treatment period.
Number of Participants With Adverse Events During Physical Examination
0 Participants
0 Participants
1 Participants
0 Participants
0 Participants

Adverse Events

Part A - Cohort 1: 18 g PB2452 (ASA + Ticagrelor Pre-Trx)

Serious events: 0 serious events
Other events: 1 other events
Deaths: 0 deaths

Part A - Cohort 2: 18 g PB2452 (ASA + Ticagrelor Pre-Trx)

Serious events: 1 serious events
Other events: 2 other events
Deaths: 0 deaths

Part A - Cohorts 1-2 Placebo: (ASA + Ticagrelor Pre-Trx)

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

Part B - Cohort 3: 36 g PB2452 (Ticagrelor Pre-Trx)

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

Part B - Cohort 3 Placebo: (Ticagrelor Pre-Trx)

Serious events: 0 serious events
Other events: 1 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Part A - Cohort 1: 18 g PB2452 (ASA + Ticagrelor Pre-Trx)
n=6 participants at risk
ASA + Ticagrelor Oral Tablet - Pre-Treatment: ASA 81 mg and Ticagrelor 180 mg + 90 mg BID for 5 doses prior to PB2452 administration PB2452 Infusion: initial administration of 6 g bolus infused over 10 minutes followed by 6 g infused over the next 4 hours, followed by 6 g infused over the next 12 hours for a total of a 16-hour and 10 minutes infusion.
Part A - Cohort 2: 18 g PB2452 (ASA + Ticagrelor Pre-Trx)
n=5 participants at risk
ASA + Ticagrelor Oral Tablet - Pre-Treatment: ASA 81 mg and Ticagrelor 180 mg + 90 mg BID for 5 doses prior to PB2452 administration PB2452 Infusion: initial administration of 6 g bolus infused over 10 minutes followed by 6 g infused over the next 4 hours, followed by 6 g infused over the next 12 hours for a total of a 16-hour and 10 minutes infusion.
Part A - Cohorts 1-2 Placebo: (ASA + Ticagrelor Pre-Trx)
n=4 participants at risk
Placebo - 0.9% Sodium Chloride ASA + Ticagrelor Oral Tablet - Pre-Treatment: ASA 81 mg and Ticagrelor 180 mg + 90 mg BID for 5 doses prior to PB2452 administration Placebo - Sodium Chloride: initial administration of 6 g bolus infused over 10 minutes followed by 6 g infused over the next 4 hours, followed by 6 g infused over the next 12 hours for a total of a 16-hour and 10 minutes infusion.
Part B - Cohort 3: 36 g PB2452 (Ticagrelor Pre-Trx)
n=6 participants at risk
Ticagrelor Oral Tablet - Pre-Treatment: Ticagrelor 180 mg BID for 5 doses prior to PB2452 administration PB2452 Infusion: initial administration of 12 g bolus infused over 10 minutes followed by 12 g infused over the next 6 hours, followed by 12 g infused over 18 hours for a total of 24-hour and 10 minutes infusion.
Part B - Cohort 3 Placebo: (Ticagrelor Pre-Trx)
n=2 participants at risk
Placebo - 0.9% Sodium Chloride Ticagrelor Oral Tablet - Pre-Treatment: Ticagrelor 180 mg BID for 5 doses prior to PB2452 administration Placebo - Sodium Chloride: initial administration of 12 g bolus infused over 10 minutes followed by 12 g infused over the next 6 hours, followed by 12 g infused over 18 hours for a total of 24-hour and 10 minutes infusion.
Investigations
Electrocardiogram T wave inversion
0.00%
0/6 • Day -3 (Pretreatment) up to Day 28
20.0%
1/5 • Number of events 1 • Day -3 (Pretreatment) up to Day 28
0.00%
0/4 • Day -3 (Pretreatment) up to Day 28
0.00%
0/6 • Day -3 (Pretreatment) up to Day 28
0.00%
0/2 • Day -3 (Pretreatment) up to Day 28

Other adverse events

Other adverse events
Measure
Part A - Cohort 1: 18 g PB2452 (ASA + Ticagrelor Pre-Trx)
n=6 participants at risk
ASA + Ticagrelor Oral Tablet - Pre-Treatment: ASA 81 mg and Ticagrelor 180 mg + 90 mg BID for 5 doses prior to PB2452 administration PB2452 Infusion: initial administration of 6 g bolus infused over 10 minutes followed by 6 g infused over the next 4 hours, followed by 6 g infused over the next 12 hours for a total of a 16-hour and 10 minutes infusion.
Part A - Cohort 2: 18 g PB2452 (ASA + Ticagrelor Pre-Trx)
n=5 participants at risk
ASA + Ticagrelor Oral Tablet - Pre-Treatment: ASA 81 mg and Ticagrelor 180 mg + 90 mg BID for 5 doses prior to PB2452 administration PB2452 Infusion: initial administration of 6 g bolus infused over 10 minutes followed by 6 g infused over the next 4 hours, followed by 6 g infused over the next 12 hours for a total of a 16-hour and 10 minutes infusion.
Part A - Cohorts 1-2 Placebo: (ASA + Ticagrelor Pre-Trx)
n=4 participants at risk
Placebo - 0.9% Sodium Chloride ASA + Ticagrelor Oral Tablet - Pre-Treatment: ASA 81 mg and Ticagrelor 180 mg + 90 mg BID for 5 doses prior to PB2452 administration Placebo - Sodium Chloride: initial administration of 6 g bolus infused over 10 minutes followed by 6 g infused over the next 4 hours, followed by 6 g infused over the next 12 hours for a total of a 16-hour and 10 minutes infusion.
Part B - Cohort 3: 36 g PB2452 (Ticagrelor Pre-Trx)
n=6 participants at risk
Ticagrelor Oral Tablet - Pre-Treatment: Ticagrelor 180 mg BID for 5 doses prior to PB2452 administration PB2452 Infusion: initial administration of 12 g bolus infused over 10 minutes followed by 12 g infused over the next 6 hours, followed by 12 g infused over 18 hours for a total of 24-hour and 10 minutes infusion.
Part B - Cohort 3 Placebo: (Ticagrelor Pre-Trx)
n=2 participants at risk
Placebo - 0.9% Sodium Chloride Ticagrelor Oral Tablet - Pre-Treatment: Ticagrelor 180 mg BID for 5 doses prior to PB2452 administration Placebo - Sodium Chloride: initial administration of 12 g bolus infused over 10 minutes followed by 12 g infused over the next 6 hours, followed by 12 g infused over 18 hours for a total of 24-hour and 10 minutes infusion.
Gastrointestinal disorders
Dry mouth
0.00%
0/6 • Day -3 (Pretreatment) up to Day 28
0.00%
0/5 • Day -3 (Pretreatment) up to Day 28
25.0%
1/4 • Number of events 1 • Day -3 (Pretreatment) up to Day 28
0.00%
0/6 • Day -3 (Pretreatment) up to Day 28
0.00%
0/2 • Day -3 (Pretreatment) up to Day 28
Gastrointestinal disorders
Infrequent bowel movements
0.00%
0/6 • Day -3 (Pretreatment) up to Day 28
0.00%
0/5 • Day -3 (Pretreatment) up to Day 28
25.0%
1/4 • Number of events 1 • Day -3 (Pretreatment) up to Day 28
0.00%
0/6 • Day -3 (Pretreatment) up to Day 28
0.00%
0/2 • Day -3 (Pretreatment) up to Day 28
Gastrointestinal disorders
Nausea
0.00%
0/6 • Day -3 (Pretreatment) up to Day 28
0.00%
0/5 • Day -3 (Pretreatment) up to Day 28
25.0%
1/4 • Number of events 1 • Day -3 (Pretreatment) up to Day 28
0.00%
0/6 • Day -3 (Pretreatment) up to Day 28
0.00%
0/2 • Day -3 (Pretreatment) up to Day 28
General disorders
Infusion site erythema
0.00%
0/6 • Day -3 (Pretreatment) up to Day 28
0.00%
0/5 • Day -3 (Pretreatment) up to Day 28
25.0%
1/4 • Number of events 1 • Day -3 (Pretreatment) up to Day 28
0.00%
0/6 • Day -3 (Pretreatment) up to Day 28
0.00%
0/2 • Day -3 (Pretreatment) up to Day 28
General disorders
Vessel puncture site bruise
16.7%
1/6 • Number of events 1 • Day -3 (Pretreatment) up to Day 28
20.0%
1/5 • Number of events 1 • Day -3 (Pretreatment) up to Day 28
25.0%
1/4 • Number of events 1 • Day -3 (Pretreatment) up to Day 28
0.00%
0/6 • Day -3 (Pretreatment) up to Day 28
0.00%
0/2 • Day -3 (Pretreatment) up to Day 28
Injury, poisoning and procedural complications
Arthropod sting
0.00%
0/6 • Day -3 (Pretreatment) up to Day 28
0.00%
0/5 • Day -3 (Pretreatment) up to Day 28
25.0%
1/4 • Number of events 1 • Day -3 (Pretreatment) up to Day 28
0.00%
0/6 • Day -3 (Pretreatment) up to Day 28
0.00%
0/2 • Day -3 (Pretreatment) up to Day 28
Investigations
Electrocardiogram t wave inversion
0.00%
0/6 • Day -3 (Pretreatment) up to Day 28
20.0%
1/5 • Number of events 1 • Day -3 (Pretreatment) up to Day 28
0.00%
0/4 • Day -3 (Pretreatment) up to Day 28
0.00%
0/6 • Day -3 (Pretreatment) up to Day 28
0.00%
0/2 • Day -3 (Pretreatment) up to Day 28
Musculoskeletal and connective tissue disorders
Back pain
0.00%
0/6 • Day -3 (Pretreatment) up to Day 28
20.0%
1/5 • Number of events 1 • Day -3 (Pretreatment) up to Day 28
25.0%
1/4 • Number of events 1 • Day -3 (Pretreatment) up to Day 28
0.00%
0/6 • Day -3 (Pretreatment) up to Day 28
0.00%
0/2 • Day -3 (Pretreatment) up to Day 28
Nervous system disorders
Dizziness
0.00%
0/6 • Day -3 (Pretreatment) up to Day 28
20.0%
1/5 • Number of events 1 • Day -3 (Pretreatment) up to Day 28
25.0%
1/4 • Number of events 1 • Day -3 (Pretreatment) up to Day 28
0.00%
0/6 • Day -3 (Pretreatment) up to Day 28
0.00%
0/2 • Day -3 (Pretreatment) up to Day 28
General disorders
Feeling hot
0.00%
0/6 • Day -3 (Pretreatment) up to Day 28
0.00%
0/5 • Day -3 (Pretreatment) up to Day 28
0.00%
0/4 • Day -3 (Pretreatment) up to Day 28
16.7%
1/6 • Number of events 1 • Day -3 (Pretreatment) up to Day 28
0.00%
0/2 • Day -3 (Pretreatment) up to Day 28
General disorders
Infusion site bruising
0.00%
0/6 • Day -3 (Pretreatment) up to Day 28
0.00%
0/5 • Day -3 (Pretreatment) up to Day 28
0.00%
0/4 • Day -3 (Pretreatment) up to Day 28
0.00%
0/6 • Day -3 (Pretreatment) up to Day 28
50.0%
1/2 • Number of events 1 • Day -3 (Pretreatment) up to Day 28
General disorders
Infusion site extravasation
0.00%
0/6 • Day -3 (Pretreatment) up to Day 28
0.00%
0/5 • Day -3 (Pretreatment) up to Day 28
0.00%
0/4 • Day -3 (Pretreatment) up to Day 28
16.7%
1/6 • Number of events 1 • Day -3 (Pretreatment) up to Day 28
0.00%
0/2 • Day -3 (Pretreatment) up to Day 28
Infections and infestations
Bronchitis
0.00%
0/6 • Day -3 (Pretreatment) up to Day 28
0.00%
0/5 • Day -3 (Pretreatment) up to Day 28
0.00%
0/4 • Day -3 (Pretreatment) up to Day 28
16.7%
1/6 • Number of events 1 • Day -3 (Pretreatment) up to Day 28
50.0%
1/2 • Number of events 1 • Day -3 (Pretreatment) up to Day 28
Infections and infestations
Folliculitis
0.00%
0/6 • Day -3 (Pretreatment) up to Day 28
0.00%
0/5 • Day -3 (Pretreatment) up to Day 28
0.00%
0/4 • Day -3 (Pretreatment) up to Day 28
16.7%
1/6 • Number of events 1 • Day -3 (Pretreatment) up to Day 28
50.0%
1/2 • Number of events 1 • Day -3 (Pretreatment) up to Day 28
Musculoskeletal and connective tissue disorders
Pain in extremity
0.00%
0/6 • Day -3 (Pretreatment) up to Day 28
0.00%
0/5 • Day -3 (Pretreatment) up to Day 28
0.00%
0/4 • Day -3 (Pretreatment) up to Day 28
16.7%
1/6 • Number of events 1 • Day -3 (Pretreatment) up to Day 28
50.0%
1/2 • Number of events 1 • Day -3 (Pretreatment) up to Day 28

Additional Information

Michele LaRussa SVP, Chief Regulatory Officer

SFJ Pharmaceuticals, Inc.

Phone: 925-223-6233

Results disclosure agreements

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