Trial Outcomes & Findings for A Positron Emission Tomography (PET) Imaging Study to Investigate the Biodistribution and Clearance of an Albumin Binding Domain Antibody (AlbudAb) GSK3128349 in Healthy Male Subjects (NCT NCT02829307)

NCT ID: NCT02829307

Last Updated: 2018-09-07

Results Overview

SUV is a mathematically derived ratio of tissue radioactivity concentration and the injected dose of radioactivity per kilogram of the participant's body weight at a given point in time. SUV was analyzed for each region of interest (ROI) such as liver, kidney, muscle, spleen, heart, lung, bladder, thymus, and if feasible blood and bone. A maximum of 4 PET scans were conducted in each participant. Mean SUV derived from PET-CT has been presented.

Recruitment status

COMPLETED

Study phase

PHASE1

Target enrollment

8 participants

Primary outcome timeframe

Up to Day 7

Results posted on

2018-09-07

Participant Flow

This study was conducted at a single center in Netherlands from 23-Aug-16 to 27-Jan-17. A total of 8 participants were randomized in the study who received 89Zr-GSK3128349 which was a mixture of unlabelled and zirconium-labelled GSK3128349, in the form of solution for intravenous (IV) administration.

A total of 34 participants were screened, of which 26 were screen failures. The reasons for screen failure were: did not meet the inclusion/exclusion criteria (11 participants) and investigator discretion (15 participants).

Participant milestones

Participant milestones
Measure
89Zr-GSK3128349
Eligible participants received a single dose of 89Zr-GSK3128349 as an IV infusion over 20 minutes to deliver a dose of 1 milligram (mg).
Overall Study
STARTED
8
Overall Study
COMPLETED
8
Overall Study
NOT COMPLETED
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

A Positron Emission Tomography (PET) Imaging Study to Investigate the Biodistribution and Clearance of an Albumin Binding Domain Antibody (AlbudAb) GSK3128349 in Healthy Male Subjects

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
89Zr-GSK3128349
n=8 Participants
Eligible participants received a single dose of 89Zr-GSK3128349 as an IV infusion over 20 minutes to deliver a dose of 1 mg.
Age, Continuous
55.0 Years
STANDARD_DEVIATION 2.33 • n=93 Participants
Sex: Female, Male
Female
0 Participants
n=93 Participants
Sex: Female, Male
Male
8 Participants
n=93 Participants
Race/Ethnicity, Customized
American Indian or Alaskan Native
1 Participants
n=93 Participants
Race/Ethnicity, Customized
White- White/Caucasian/ European Heritage
7 Participants
n=93 Participants

PRIMARY outcome

Timeframe: Up to Day 7

Population: Pharmacokinetic (PK) Population comprised of participants in the Safety Population for whom a PK sample was obtained and analyzed, and/or for which a PET scan was completed. Only those participants available at the specified time points were analyzed represented by n=X in the category titles.

SUV is a mathematically derived ratio of tissue radioactivity concentration and the injected dose of radioactivity per kilogram of the participant's body weight at a given point in time. SUV was analyzed for each region of interest (ROI) such as liver, kidney, muscle, spleen, heart, lung, bladder, thymus, and if feasible blood and bone. A maximum of 4 PET scans were conducted in each participant. Mean SUV derived from PET-CT has been presented.

Outcome measures

Outcome measures
Measure
89Zr-GSK3128349
n=8 Participants
Eligible participants received a single dose of 89Zr-GSK3128349 as an IV infusion over 20 minutes to deliver a dose of 1 mg.
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Thigh muscle: PET scan 1; n=8
0.515 Ratio
Standard Deviation 0.1387
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Thigh muscle: PET scan 2; n=8
0.566 Ratio
Standard Deviation 0.1315
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Thigh muscle: PET scan 3; n=7
0.607 Ratio
Standard Deviation 0.0767
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Thigh muscle: PET scan 4; n=7
0.623 Ratio
Standard Deviation 0.1509
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Liver: PET scan 1; n=8
4.929 Ratio
Standard Deviation 0.7219
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Liver: PET scan 2; n=8
3.231 Ratio
Standard Deviation 0.4981
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Liver: PET scan 3; n=7
2.994 Ratio
Standard Deviation 0.7314
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Liver: PET scan 4; n=7
2.280 Ratio
Standard Deviation 0.3151
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Pancreas: PET scan 1; n=7
2.177 Ratio
Standard Deviation 0.4573
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Pancreas: PET scan 2; n=7
2.029 Ratio
Standard Deviation 0.6621
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Pancreas: PET scan 3; n=6
1.887 Ratio
Standard Deviation 0.4131
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Pancreas: PET scan 4; n=6
1.917 Ratio
Standard Deviation 1.0314
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Thyroid gland: PET scan 1; n=8
2.338 Ratio
Standard Deviation 0.8821
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Thyroid gland: PET scan 2; n=8
2.171 Ratio
Standard Deviation 0.8408
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Thyroid gland: PET scan 3; n=7
2.330 Ratio
Standard Deviation 1.0510
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Thyroid gland: PET scan 4; n=7
1.789 Ratio
Standard Deviation 0.4791
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Testis: PET scan 1; n=8
3.336 Ratio
Standard Deviation 0.7479
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Testis: PET scan 2; n=8
3.733 Ratio
Standard Deviation 0.7793
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Testis: PET scan 3; n=7
3.259 Ratio
Standard Deviation 0.9988
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Testis: PET scan 4; n=7
3.280 Ratio
Standard Deviation 0.4789
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Bladder: PET scan 1; n=8
2.750 Ratio
Standard Deviation 1.0483
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Bladder: PET scan 2; n=8
1.149 Ratio
Standard Deviation 0.4572
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Bladder: PET scan 3; n=7
1.630 Ratio
Standard Deviation 0.4938
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Bladder: PET scan 4; n=7
1.609 Ratio
Standard Deviation 0.4176
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Kidney: PET scan 1; n=8
7.845 Ratio
Standard Deviation 1.1487
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Kidney: PET scan 2; n=8
9.516 Ratio
Standard Deviation 1.0005
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Kidney: PET scan 3; n=7
10.466 Ratio
Standard Deviation 2.2765
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Kidney: PET scan 4; n=7
8.603 Ratio
Standard Deviation 1.6626
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Parotid gland: PET scan 1; n=8
1.514 Ratio
Standard Deviation 0.3005
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Parotid gland: PET scan 2; n=8
1.430 Ratio
Standard Deviation 0.3091
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Parotid gland: PET scan 3; n=7
1.541 Ratio
Standard Deviation 0.2084
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Parotid gland: PET scan 4; n=7
1.531 Ratio
Standard Deviation 0.1643
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Bone marrow: PET scan 1; n=8
1.746 Ratio
Standard Deviation 0.2575
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Bone marrow: PET scan 2; n=8
1.378 Ratio
Standard Deviation 0.2066
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Bone marrow: PET scan 3; n=7
1.289 Ratio
Standard Deviation 0.2998
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Bone marrow: PET scan 4; n=7
1.350 Ratio
Standard Deviation 0.2802
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Spleen: PET scan 1; n=8
5.220 Ratio
Standard Deviation 0.6398
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Spleen: PET scan 2; n=8
3.691 Ratio
Standard Deviation 0.4638
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Spleen: PET scan 3; n=7
3.296 Ratio
Standard Deviation 0.8611
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Spleen: PET scan 4; n=7
3.097 Ratio
Standard Deviation 0.4946
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Brain: PET scan 1; n=8
0.461 Ratio
Standard Deviation 0.0762
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Brain: PET scan 2; n=8
0.295 Ratio
Standard Deviation 0.0901
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Brain: PET scan 3; n=7
0.231 Ratio
Standard Deviation 0.0689
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Brain: PET scan 4; n=7
0.201 Ratio
Standard Deviation 0.0348
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Lung: PET scan 1; n=8
1.884 Ratio
Standard Deviation 0.5968
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Lung: PET scan 2; n=8
1.345 Ratio
Standard Deviation 0.4381
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Lung: PET scan 3; n=7
1.186 Ratio
Standard Deviation 0.4720
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Lung: PET scan 4; n=7
0.893 Ratio
Standard Deviation 0.2583
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Aorta: PET scan 1; n=8
10.835 Ratio
Standard Deviation 2.0289
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Aorta: PET scan 2; n=8
6.573 Ratio
Standard Deviation 1.5621
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Aorta: PET scan 3; n=7
5.516 Ratio
Standard Deviation 1.4879
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Aorta: PET scan 4; n=7
4.299 Ratio
Standard Deviation 0.8195
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Heart: PET scan 1; n=8
8.601 Ratio
Standard Deviation 1.8566
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Heart: PET scan 2; n=8
5.851 Ratio
Standard Deviation 1.5742
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Heart: PET scan 3; n=7
4.829 Ratio
Standard Deviation 1.3661
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Heart: PET scan 4; n=7
3.701 Ratio
Standard Deviation 0.6770
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Kidney, cortex: PET scan 1; n=8
8.805 Ratio
Standard Deviation 1.4835
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Kidney, cortex: PET scan 2; n=8
12.145 Ratio
Standard Deviation 1.7704
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Kidney, cortex: PET scan 3; n=7
11.966 Ratio
Standard Deviation 1.5492
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Kidney, cortex: PET scan 4; n=7
10.479 Ratio
Standard Deviation 1.6047
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Kidney, medulla: PET scan 1; n=8
6.996 Ratio
Standard Deviation 1.5577
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Kidney, medulla: PET scan 2; n=8
7.416 Ratio
Standard Deviation 1.2101
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Kidney, medulla: PET scan 3; n=7
8.247 Ratio
Standard Deviation 2.3436
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Kidney, medulla: PET scan 4; n=7
6.691 Ratio
Standard Deviation 1.1767
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Body: PET scan 1; n=8
0.739 Ratio
Standard Deviation 0.1647
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Body: PET scan 2; n=8
0.654 Ratio
Standard Deviation 0.1632
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Body: PET scan 3; n=7
0.701 Ratio
Standard Deviation 0.1728
Mean Standardized Uptake Values (SUVs) Derived From Positron Emission Tomography-Computer Tomography (PET-CT) Data
Body: PET scan 4; n=7
0.631 Ratio
Standard Deviation 0.1680

PRIMARY outcome

Timeframe: Up to Day 7

Population: PK Population. Only those participants available at the specified time points were analyzed represented by n=X in the category titles.

Volume of ROI is the volume specified in organs as measured in PET or CT images. Mean volume of ROI for each organ has been presented.

Outcome measures

Outcome measures
Measure
89Zr-GSK3128349
n=8 Participants
Eligible participants received a single dose of 89Zr-GSK3128349 as an IV infusion over 20 minutes to deliver a dose of 1 mg.
Mean Volume of ROI for Each Organ at All Time Points
Kidney, cortex: PET scan 3; n=7
6.770 Milliliter (mL)
Standard Deviation 1.2609
Mean Volume of ROI for Each Organ at All Time Points
Thigh muscle: PET scan 1; n=8
45.001 Milliliter (mL)
Standard Deviation 16.6069
Mean Volume of ROI for Each Organ at All Time Points
Thigh muscle: PET scan 2; n=8
40.975 Milliliter (mL)
Standard Deviation 12.4102
Mean Volume of ROI for Each Organ at All Time Points
Thigh muscle: PET scan 3; n=7
40.094 Milliliter (mL)
Standard Deviation 6.7137
Mean Volume of ROI for Each Organ at All Time Points
Thigh muscle: PET scan 4; n=7
38.874 Milliliter (mL)
Standard Deviation 10.7444
Mean Volume of ROI for Each Organ at All Time Points
Liver: PET scan 1; n=8
574.546 Milliliter (mL)
Standard Deviation 301.4580
Mean Volume of ROI for Each Organ at All Time Points
Liver: PET scan 2; n=8
532.373 Milliliter (mL)
Standard Deviation 147.3186
Mean Volume of ROI for Each Organ at All Time Points
Liver: PET scan 3; n=7
488.974 Milliliter (mL)
Standard Deviation 156.2512
Mean Volume of ROI for Each Organ at All Time Points
Liver: PET scan 4; n=7
496.861 Milliliter (mL)
Standard Deviation 166.0174
Mean Volume of ROI for Each Organ at All Time Points
Pancreas: PET scan 1; n=7
7.777 Milliliter (mL)
Standard Deviation 3.3295
Mean Volume of ROI for Each Organ at All Time Points
Pancreas: PET scan 2; n=7
7.780 Milliliter (mL)
Standard Deviation 2.7156
Mean Volume of ROI for Each Organ at All Time Points
Pancreas: PET scan 3; n=6
5.905 Milliliter (mL)
Standard Deviation 3.0366
Mean Volume of ROI for Each Organ at All Time Points
Pancreas: PET scan 4; n=6
6.877 Milliliter (mL)
Standard Deviation 4.7283
Mean Volume of ROI for Each Organ at All Time Points
Thyroid gland: PET scan 1; n=8
2.750 Milliliter (mL)
Standard Deviation 1.5549
Mean Volume of ROI for Each Organ at All Time Points
Thyroid gland: PET scan 2; n=8
3.004 Milliliter (mL)
Standard Deviation 0.9845
Mean Volume of ROI for Each Organ at All Time Points
Thyroid gland: PET scan 3; n=7
2.913 Milliliter (mL)
Standard Deviation 0.9590
Mean Volume of ROI for Each Organ at All Time Points
Thyroid gland: PET scan 4; n=7
4.137 Milliliter (mL)
Standard Deviation 2.0853
Mean Volume of ROI for Each Organ at All Time Points
Testis: PET scan 1; n=8
13.223 Milliliter (mL)
Standard Deviation 6.7226
Mean Volume of ROI for Each Organ at All Time Points
Testis: PET scan 2; n=8
12.010 Milliliter (mL)
Standard Deviation 6.5955
Mean Volume of ROI for Each Organ at All Time Points
Testis: PET scan 3; n=7
11.583 Milliliter (mL)
Standard Deviation 4.5054
Mean Volume of ROI for Each Organ at All Time Points
Testis: PET scan 4; n=7
13.871 Milliliter (mL)
Standard Deviation 7.6413
Mean Volume of ROI for Each Organ at All Time Points
Bladder: PET scan 1; n=8
84.228 Milliliter (mL)
Standard Deviation 69.2024
Mean Volume of ROI for Each Organ at All Time Points
Bladder: PET scan 2; n=8
60.669 Milliliter (mL)
Standard Deviation 26.7843
Mean Volume of ROI for Each Organ at All Time Points
Bladder: PET scan 3; n=7
54.771 Milliliter (mL)
Standard Deviation 26.2373
Mean Volume of ROI for Each Organ at All Time Points
Bladder: PET scan 4; n=7
66.291 Milliliter (mL)
Standard Deviation 47.1061
Mean Volume of ROI for Each Organ at All Time Points
Kidney: PET scan 1; n=8
144.093 Milliliter (mL)
Standard Deviation 32.8834
Mean Volume of ROI for Each Organ at All Time Points
Kidney: PET scan 2; n=8
162.578 Milliliter (mL)
Standard Deviation 55.1273
Mean Volume of ROI for Each Organ at All Time Points
Kidney: PET scan 3; n=7
152.031 Milliliter (mL)
Standard Deviation 36.5278
Mean Volume of ROI for Each Organ at All Time Points
Kidney: PET scan 4; n=7
177.840 Milliliter (mL)
Standard Deviation 30.9614
Mean Volume of ROI for Each Organ at All Time Points
Parotid gland: PET scan 1; n=8
8.304 Milliliter (mL)
Standard Deviation 3.5772
Mean Volume of ROI for Each Organ at All Time Points
Parotid gland: PET scan 2; n=8
9.391 Milliliter (mL)
Standard Deviation 4.2224
Mean Volume of ROI for Each Organ at All Time Points
Parotid gland: PET scan 3; n=7
8.611 Milliliter (mL)
Standard Deviation 1.6606
Mean Volume of ROI for Each Organ at All Time Points
Parotid gland: PET scan 4; n=7
9.896 Milliliter (mL)
Standard Deviation 2.6622
Mean Volume of ROI for Each Organ at All Time Points
Bone marrow: PET scan 1; n=8
36.625 Milliliter (mL)
Standard Deviation 18.3824
Mean Volume of ROI for Each Organ at All Time Points
Bone marrow: PET scan 2; n=8
37.495 Milliliter (mL)
Standard Deviation 15.1968
Mean Volume of ROI for Each Organ at All Time Points
Bone marrow: PET scan 3; n=7
45.271 Milliliter (mL)
Standard Deviation 18.2245
Mean Volume of ROI for Each Organ at All Time Points
Bone marrow: PET scan 4; n=7
42.871 Milliliter (mL)
Standard Deviation 14.4365
Mean Volume of ROI for Each Organ at All Time Points
Spleen: PET scan 1; n=8
62.238 Milliliter (mL)
Standard Deviation 20.6549
Mean Volume of ROI for Each Organ at All Time Points
Spleen: PET scan 2; n=8
67.160 Milliliter (mL)
Standard Deviation 21.9034
Mean Volume of ROI for Each Organ at All Time Points
Spleen: PET scan 3; n=7
54.544 Milliliter (mL)
Standard Deviation 13.4153
Mean Volume of ROI for Each Organ at All Time Points
Spleen: PET scan 4; n=7
47.474 Milliliter (mL)
Standard Deviation 18.3678
Mean Volume of ROI for Each Organ at All Time Points
Brain: PET scan 1; n=8
575.996 Milliliter (mL)
Standard Deviation 91.2147
Mean Volume of ROI for Each Organ at All Time Points
Brain: PET scan 2; n=8
510.614 Milliliter (mL)
Standard Deviation 139.8124
Mean Volume of ROI for Each Organ at All Time Points
Brain: PET scan 3; n=7
471.550 Milliliter (mL)
Standard Deviation 152.8605
Mean Volume of ROI for Each Organ at All Time Points
Brain: PET scan 4; n=7
498.207 Milliliter (mL)
Standard Deviation 145.5429
Mean Volume of ROI for Each Organ at All Time Points
Lung: PET scan 1; n=8
329.891 Milliliter (mL)
Standard Deviation 134.1686
Mean Volume of ROI for Each Organ at All Time Points
Lung: PET scan 2; n=8
329.374 Milliliter (mL)
Standard Deviation 162.8302
Mean Volume of ROI for Each Organ at All Time Points
Lung: PET scan 3; n=7
328.794 Milliliter (mL)
Standard Deviation 115.2736
Mean Volume of ROI for Each Organ at All Time Points
Lung: PET scan 4; n=7
308.494 Milliliter (mL)
Standard Deviation 77.7344
Mean Volume of ROI for Each Organ at All Time Points
Aorta: PET scan 1; n=8
6.388 Milliliter (mL)
Standard Deviation 2.9532
Mean Volume of ROI for Each Organ at All Time Points
Aorta: PET scan 2; n=8
8.171 Milliliter (mL)
Standard Deviation 3.5471
Mean Volume of ROI for Each Organ at All Time Points
Aorta: PET scan 3; n=7
7.887 Milliliter (mL)
Standard Deviation 3.1780
Mean Volume of ROI for Each Organ at All Time Points
Aorta: PET scan 4; n=7
8.199 Milliliter (mL)
Standard Deviation 3.5405
Mean Volume of ROI for Each Organ at All Time Points
Heart: PET scan 1; n=8
135.013 Milliliter (mL)
Standard Deviation 74.5105
Mean Volume of ROI for Each Organ at All Time Points
Heart: PET scan 2; n=8
111.133 Milliliter (mL)
Standard Deviation 53.4101
Mean Volume of ROI for Each Organ at All Time Points
Heart: PET scan 3; n=7
105.007 Milliliter (mL)
Standard Deviation 26.1510
Mean Volume of ROI for Each Organ at All Time Points
Heart: PET scan 4; n=7
103.971 Milliliter (mL)
Standard Deviation 40.0218
Mean Volume of ROI for Each Organ at All Time Points
Kidney, cortex: PET scan 1; n=8
5.483 Milliliter (mL)
Standard Deviation 3.0342
Mean Volume of ROI for Each Organ at All Time Points
Kidney, cortex: PET scan 2; n=8
5.728 Milliliter (mL)
Standard Deviation 2.7257
Mean Volume of ROI for Each Organ at All Time Points
Kidney, cortex: PET scan 4; n=7
7.229 Milliliter (mL)
Standard Deviation 3.5309
Mean Volume of ROI for Each Organ at All Time Points
Kidney, medulla: PET scan 1; n=8
4.646 Milliliter (mL)
Standard Deviation 2.1984
Mean Volume of ROI for Each Organ at All Time Points
Kidney, medulla: PET scan 2; n=8
4.885 Milliliter (mL)
Standard Deviation 2.3112
Mean Volume of ROI for Each Organ at All Time Points
Kidney, medulla: PET scan 3; n=7
6.104 Milliliter (mL)
Standard Deviation 1.4927
Mean Volume of ROI for Each Organ at All Time Points
Kidney, medulla: PET scan 4; n=7
6.661 Milliliter (mL)
Standard Deviation 3.3183
Mean Volume of ROI for Each Organ at All Time Points
Body: PET scan 1; n=8
103654.675 Milliliter (mL)
Standard Deviation 29591.9710
Mean Volume of ROI for Each Organ at All Time Points
Body: PET scan 2; n=8
106925.973 Milliliter (mL)
Standard Deviation 32398.3328
Mean Volume of ROI for Each Organ at All Time Points
Body: PET scan 3; n=7
96034.243 Milliliter (mL)
Standard Deviation 22195.6206
Mean Volume of ROI for Each Organ at All Time Points
Body: PET scan 4; n=7
100291.249 Milliliter (mL)
Standard Deviation 27671.1649

SECONDARY outcome

Timeframe: Pre-dose, 1 hour (h), 3 h, 6 h, 8h, 24 h post-dose, Day 4, Day 6, Day 14, Day 22, Day 33 and Day 45

Population: PK Population. Only those participants available at the specified time points were analyzed.

PK parameters included AUC (0-t) and AUC (0-inf). AUC (0-t) and AUC (0-inf) for 89Zr-GSK3128349 was calculated from the whole blood and plasma concentration-time data, measured by scintillation counting. AUC (0-t) and AUC (0-inf) for GSK3128349 was calculated from the whole blood and plasma concentration-time data, measured by mass spectrometry.

Outcome measures

Outcome measures
Measure
89Zr-GSK3128349
n=7 Participants
Eligible participants received a single dose of 89Zr-GSK3128349 as an IV infusion over 20 minutes to deliver a dose of 1 mg.
Area Under Concentration-time Curve From Time Zero (Pre-dose) to Last Time of Quantifiable Concentration (AUC [0-t]) and Area Under the Concentration-time Curve From Time Zero Extrapolated to Infinite Time (AUC [0-inf]) of 89Zr-GSK3128349 and GSK3128349
89Zr-GSK3128349: AUC (0-t)
461526.5722 (Becquerel [Bq] per mL)*h
Geometric Coefficient of Variation 11.1647
Area Under Concentration-time Curve From Time Zero (Pre-dose) to Last Time of Quantifiable Concentration (AUC [0-t]) and Area Under the Concentration-time Curve From Time Zero Extrapolated to Infinite Time (AUC [0-inf]) of 89Zr-GSK3128349 and GSK3128349
89Zr-GSK3128349: AUC (0-inf)
930260.1961 (Becquerel [Bq] per mL)*h
Geometric Coefficient of Variation 19.4399
Area Under Concentration-time Curve From Time Zero (Pre-dose) to Last Time of Quantifiable Concentration (AUC [0-t]) and Area Under the Concentration-time Curve From Time Zero Extrapolated to Infinite Time (AUC [0-inf]) of 89Zr-GSK3128349 and GSK3128349
GSK3128349: AUC (0-t)
82177.6360 (Becquerel [Bq] per mL)*h
Geometric Coefficient of Variation 19.0961
Area Under Concentration-time Curve From Time Zero (Pre-dose) to Last Time of Quantifiable Concentration (AUC [0-t]) and Area Under the Concentration-time Curve From Time Zero Extrapolated to Infinite Time (AUC [0-inf]) of 89Zr-GSK3128349 and GSK3128349
GSK3128349: AUC (0-inf)
104257.7700 (Becquerel [Bq] per mL)*h
Geometric Coefficient of Variation 16.5839

SECONDARY outcome

Timeframe: Pre-dose, 1 h, 3 h, 6 h, 8h, 24 h post-dose, Day 4, Day 6, Day 14, Day 22, Day 33 and Day 45

Population: PK Population. Only those participants available at the specified time points were analyzed.

PK parameters included AUCex and AUMCex. AUCex and AUMCex for 89Zr-GSK3128349 was calculated from the whole blood and plasma concentration-time data, measured by scintillation counting. AUCex and AUMCex for GSK3128349 was calculated from the whole blood and plasma concentration-time data, measured by mass spectrometry.

Outcome measures

Outcome measures
Measure
89Zr-GSK3128349
n=7 Participants
Eligible participants received a single dose of 89Zr-GSK3128349 as an IV infusion over 20 minutes to deliver a dose of 1 mg.
Percent Area Under the Curve Obtained by Extrapolation (AUCex) and Percent Area Under the First Moment Curve Obtained by Extrapolation (AUMCex) of 89Zr-GSK3128349 and GSK3128349
89Zr-GSK3128349: Percent AUCex
48.5838 Percentage area under the curve
Geometric Coefficient of Variation 20.4243
Percent Area Under the Curve Obtained by Extrapolation (AUCex) and Percent Area Under the First Moment Curve Obtained by Extrapolation (AUMCex) of 89Zr-GSK3128349 and GSK3128349
89Zr-GSK3128349: Percent AUMCex
84.0346 Percentage area under the curve
Geometric Coefficient of Variation 8.3187
Percent Area Under the Curve Obtained by Extrapolation (AUCex) and Percent Area Under the First Moment Curve Obtained by Extrapolation (AUMCex) of 89Zr-GSK3128349 and GSK3128349
GSK3128349: Percent AUCex
20.7353 Percentage area under the curve
Geometric Coefficient of Variation 19.8191
Percent Area Under the Curve Obtained by Extrapolation (AUCex) and Percent Area Under the First Moment Curve Obtained by Extrapolation (AUMCex) of 89Zr-GSK3128349 and GSK3128349
GSK3128349: Percent AUMCex
55.9698 Percentage area under the curve
Geometric Coefficient of Variation 11.6540

SECONDARY outcome

Timeframe: Pre-dose, 1 h, 3 h, 6 h, 8h, 24 h post-dose, Day 4, Day 6, Day 14, Day 22, Day 33 and Day 45

Population: PK Population. Only those participants available at the specified time points were analyzed.

PK parameters included Cmax. Cmax for 89Zr-GSK3128349 was calculated from the whole blood and plasma concentration-time data, measured by scintillation counting.

Outcome measures

Outcome measures
Measure
89Zr-GSK3128349
n=7 Participants
Eligible participants received a single dose of 89Zr-GSK3128349 as an IV infusion over 20 minutes to deliver a dose of 1 mg.
Maximum Observed Plasma Concentration (Cmax) of 89Zr-GSK3128349
3872.7027 Bq per mL
Geometric Coefficient of Variation 8.6104

SECONDARY outcome

Timeframe: Pre-dose, 1 h, 3 h, 6 h, 8h, 24 h post-dose, Day 4, Day 6, Day 14, Day 22, Day 33 and Day 45

Population: PK Population. Only those participants available at the specified time points were analyzed.

PK parameters included Cmax. Cmax for GSK3128349 was calculated from the whole blood and plasma concentration-time data, measured by mass spectrometry.

Outcome measures

Outcome measures
Measure
89Zr-GSK3128349
n=7 Participants
Eligible participants received a single dose of 89Zr-GSK3128349 as an IV infusion over 20 minutes to deliver a dose of 1 mg.
Cmax of GSK3128349
374.3868 Nanogram (ng) per mL
Geometric Coefficient of Variation 10.4183

SECONDARY outcome

Timeframe: Pre-dose, 1 h, 3 h, 6 h, 8h, 24 h post-dose, Day 4, Day 6, Day 14, Day 22, Day 33 and Day 45

Population: PK Population. Only those participants available at the specified time points were analyzed.

PK parameters included t1/2 and MRT. t1/2 and MRT for 89Zr-GSK3128349 was calculated from the whole blood and plasma concentration-time data, measured by scintillation counting. t1/2 and MRT for GSK3128349 was calculated from the whole blood and plasma concentration-time data, measured by mass spectrometry.

Outcome measures

Outcome measures
Measure
89Zr-GSK3128349
n=7 Participants
Eligible participants received a single dose of 89Zr-GSK3128349 as an IV infusion over 20 minutes to deliver a dose of 1 mg.
Apparent Terminal Phase Half-life (t1/2) and Mean Residence Time (MRT) of 89Zr-GSK3128349 and GSK3128349
89Zr-GSK3128349: t1/2
279.3697 Hours
Geometric Coefficient of Variation 40.6517
Apparent Terminal Phase Half-life (t1/2) and Mean Residence Time (MRT) of 89Zr-GSK3128349 and GSK3128349
89Zr-GSK3128349: MRT
404.8882 Hours
Geometric Coefficient of Variation 36.4904
Apparent Terminal Phase Half-life (t1/2) and Mean Residence Time (MRT) of 89Zr-GSK3128349 and GSK3128349
GSK3128349: t1/2
420.6105 Hours
Geometric Coefficient of Variation 9.2835
Apparent Terminal Phase Half-life (t1/2) and Mean Residence Time (MRT) of 89Zr-GSK3128349 and GSK3128349
GSK3128349: MRT
562.3356 Hours
Geometric Coefficient of Variation 9.7841

SECONDARY outcome

Timeframe: Pre-dose, 1 h, 3 h, 6 h, 8h, 24 h post-dose, Day 4, Day 6, Day 14, Day 22, Day 33 and Day 45

Population: PK Population. Only those participants available at the specified time points were analyzed.

PK parameters included lambda-z. Cmax for 89Zr-GSK3128349 was calculated from the whole blood and plasma concentration-time data, measured by scintillation counting.

Outcome measures

Outcome measures
Measure
89Zr-GSK3128349
n=7 Participants
Eligible participants received a single dose of 89Zr-GSK3128349 as an IV infusion over 20 minutes to deliver a dose of 1 mg.
Elimination Rate Constant (Lambda-z) of 89Zr-GSK3128349
0.0025 1 per h
Geometric Coefficient of Variation 40.6517

SECONDARY outcome

Timeframe: Pre-dose, 1 h, 3 h, 6 h, 8h, 24 h post-dose, Day 4, Day 6, Day 14, Day 22, Day 33 and Day 45

Population: PK Population. Only those participants available at the specified time points were analyzed.

PK parameters included Vss and Vz. Vss and Vz for 89Zr-GSK3128349 was calculated from the whole blood and plasma concentration-time data, measured by scintillation counting. Vss and Vz for GSK3128349 was calculated from the whole blood and plasma concentration-time data, measured by mass spectrometry.

Outcome measures

Outcome measures
Measure
89Zr-GSK3128349
n=7 Participants
Eligible participants received a single dose of 89Zr-GSK3128349 as an IV infusion over 20 minutes to deliver a dose of 1 mg.
Volume of Distribution at a Steady State (Vss) and Volume of Distribution in the Terminal Phase (Vz) of 89Zr-GSK3128349 and GSK3128349
89Zr-GSK3128349: Vss
5440.5241 mL
Geometric Coefficient of Variation 21.7532
Volume of Distribution at a Steady State (Vss) and Volume of Distribution in the Terminal Phase (Vz) of 89Zr-GSK3128349 and GSK3128349
89Zr-GSK3128349: Vz
5415.7602 mL
Geometric Coefficient of Variation 25.5996
Volume of Distribution at a Steady State (Vss) and Volume of Distribution in the Terminal Phase (Vz) of 89Zr-GSK3128349 and GSK3128349
GSK3128349: Vss
5393.6763 mL
Geometric Coefficient of Variation 13.5175
Volume of Distribution at a Steady State (Vss) and Volume of Distribution in the Terminal Phase (Vz) of 89Zr-GSK3128349 and GSK3128349
GSK3128349: Vz
5820.3069 mL
Geometric Coefficient of Variation 13.9190

SECONDARY outcome

Timeframe: Pre-dose, 1 h, 3 h, 6 h, 8h, 24 h post-dose, Day 4, Day 6, Day 14, Day 22, Day 33 and Day 45

Population: PK Population. Only those participants available at the specified time points were analyzed.

PK parameters included AUMC (0-inf) and AUMC (0-t). AUMC (0-inf) and AUMC (0-t) for 89Zr-GSK3128349 was calculated from the whole blood and plasma concentration-time data, measured by scintillation counting.

Outcome measures

Outcome measures
Measure
89Zr-GSK3128349
n=7 Participants
Eligible participants received a single dose of 89Zr-GSK3128349 as an IV infusion over 20 minutes to deliver a dose of 1 mg.
Area Under the First Moment Curve From Pre-dose Extrapolated to Infinite Time (AUMC [0-inf]) and Area Under the First Moment Curve From Pre-dose Extrapolated to Last Time of Quantifiable Concentration (AUMC [0-t]) of 89Zr-GSK3128349
89Zr-GSK3128349: AUMC (0-inf)
376651413.6839 (Bq/mL)*h^2)
Geometric Coefficient of Variation 56.6074
Area Under the First Moment Curve From Pre-dose Extrapolated to Infinite Time (AUMC [0-inf]) and Area Under the First Moment Curve From Pre-dose Extrapolated to Last Time of Quantifiable Concentration (AUMC [0-t]) of 89Zr-GSK3128349
89Zr-GSK3128349: AUMC (0-t)
53242134.4377 (Bq/mL)*h^2)
Geometric Coefficient of Variation 10.0977

SECONDARY outcome

Timeframe: Pre-dose, 1 h, 3 h, 6 h, 8h, 24 h post-dose, Day 4, Day 6, Day 14, Day 22, Day 33 and Day 45

Population: PK Population. Only those participants available at the specified time points were analyzed.

PK parameters included AUMC (0-inf) and AUMC (0-t). AUMC (0-inf) and AUMC (0-t) for GSK3128349 was calculated from the whole blood and plasma concentration-time data, measured by mass spectrometry.

Outcome measures

Outcome measures
Measure
89Zr-GSK3128349
n=7 Participants
Eligible participants received a single dose of 89Zr-GSK3128349 as an IV infusion over 20 minutes to deliver a dose of 1 mg.
AUMC (0-inf) and AUMC (0-t) of GSK3128349
GSK3128349: AUMC (0-inf)
58627561.8533 (ng/mL)*h^2
Geometric Coefficient of Variation 23.8246
AUMC (0-inf) and AUMC (0-t) of GSK3128349
GSK3128349: AUMC (0-t)
25366300.3864 (ng/mL)*h^2
Geometric Coefficient of Variation 31.7095

SECONDARY outcome

Timeframe: Pre-dose, 1 h, 3 h, 6 h, 8h, 24 h post-dose, Day 4, Day 6, Day 14, Day 22, Day 33 and Day 45

Population: PK Population. Only those participants available at the specified time points were analyzed.

PK parameters included clearance. Clearance for 89Zr-GSK3128349 was calculated from the whole blood and plasma concentration-time data, measured by scintillation counting. Clearance for GSK3128349 was calculated from the whole blood and plasma concentration-time data, measured by mass spectrometry.

Outcome measures

Outcome measures
Measure
89Zr-GSK3128349
n=7 Participants
Eligible participants received a single dose of 89Zr-GSK3128349 as an IV infusion over 20 minutes to deliver a dose of 1 mg.
Clearance of 89Zr-GSK3128349 and GSK3128349
89Zr-GSK3128349: Clearance
13.4371 mL/h
Geometric Coefficient of Variation 19.4399
Clearance of 89Zr-GSK3128349 and GSK3128349
GSK3128349: Clearance
9.5918 mL/h
Geometric Coefficient of Variation 16.5657

SECONDARY outcome

Timeframe: Up to Day 7

Population: PK Population. Only those participants available at the specified time points were analyzed.

Organ dose was defined as the amount of radiation delivered to a particular organ. Effective dose was defined as the tissue-weighted sum of the organ doses in all specified tissues and organs of the human body. The organ and effective dose is a fraction of milliSievert (mSv) and MegaBecquerel (MBq). The mean relative uptake of 89Zr-GSK3128349 in different organs for all participants across all PET scans is presented.

Outcome measures

Outcome measures
Measure
89Zr-GSK3128349
n=7 Participants
Eligible participants received a single dose of 89Zr-GSK3128349 as an IV infusion over 20 minutes to deliver a dose of 1 mg.
Mean Organ and Effective Dose
Thymus gland
0.3457 mSv/MBq
Standard Deviation 0.03229
Mean Organ and Effective Dose
Liver
0.7909 mSv/MBq
Standard Deviation 0.15549
Mean Organ and Effective Dose
Pancreas
0.5701 mSv/MBq
Standard Deviation 0.09391
Mean Organ and Effective Dose
Thyroid gland
0.4004 mSv/MBq
Standard Deviation 0.09722
Mean Organ and Effective Dose
Testis
0.4827 mSv/MBq
Standard Deviation 0.03345
Mean Organ and Effective Dose
Bladder
0.2889 mSv/MBq
Standard Deviation 0.02315
Mean Organ and Effective Dose
Kidney
1.3871 mSv/MBq
Standard Deviation 0.30625
Mean Organ and Effective Dose
Bone marrow
0.3407 mSv/MBq
Standard Deviation 0.03146
Mean Organ and Effective Dose
Spleen
0.7314 mSv/MBq
Standard Deviation 0.08562
Mean Organ and Effective Dose
Brain
0.1431 mSv/MBq
Standard Deviation 0.04001
Mean Organ and Effective Dose
Lung
0.8413 mSv/MBq
Standard Deviation 0.17595
Mean Organ and Effective Dose
Heart
0.6721 mSv/MBq
Standard Deviation 0.14849
Mean Organ and Effective Dose
Body
0.4480 mSv/MBq
Standard Deviation 0.03811

SECONDARY outcome

Timeframe: Up to 45 days

Population: Safety Population which comprised of all participants who received a dose of 89Zr-GSK3128349.

AE is any untoward medical occurrence in a participant or clinical investigation participant, temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of a medicinal product. For marketed medicinal products, this also includes failure to produce expected benefits (i.e., lack of efficacy), abuse or misuse. SAE is any untoward medical occurrence that, at any dose results in death, is life-threatening, requires hospitalization or prolongation of existing hospitalization, results in disability/incapacity, or is a congenital anomaly/birth defect or is medically significant or is associated with liver injury or impaired liver function.

Outcome measures

Outcome measures
Measure
89Zr-GSK3128349
n=8 Participants
Eligible participants received a single dose of 89Zr-GSK3128349 as an IV infusion over 20 minutes to deliver a dose of 1 mg.
Number of Participants With Adverse Events (AE) and Serious Adverse Events (SAE)
AE
2 Participants
Number of Participants With Adverse Events (AE) and Serious Adverse Events (SAE)
SAE
0 Participants

SECONDARY outcome

Timeframe: Up to 45 days

Population: Safety Population.

The potential clinical concern range for clinical chemistry parameters were: glucose (low: \< 3 millimole \[mmol\]/L and high: \> 9 mmol/L), creatinine (high: Change from Baseline or Day 1 should be positive and \> 44.2 mmol/L), phosphorous (low: \< 0.8 mmol/L and high: \> 1.6 mmol/L), magnesium (low: \< 0.5 mmol/L and high: \> 1.23 mmol/L), calcium (low: \<2 mmoL/L and high: \> 2.75 mmol/L), carbon dioxide content (low: \< 18 mmol/L and high: \> 32 mmol/L), albumin (low: \< 30 mmol/L), potassium (low: \< 3.0 mmol/L and high: \> 5.5 mmol/L) and sodium (low: \< 130 mmol/L and high: \> 130 mmol/L). Number of participants with clinical chemistry abnormalities of potential clinical importance are presented

Outcome measures

Outcome measures
Measure
89Zr-GSK3128349
n=8 Participants
Eligible participants received a single dose of 89Zr-GSK3128349 as an IV infusion over 20 minutes to deliver a dose of 1 mg.
Number of Participants With Clinical Chemistry Data of Potential Clinical Concern
0 Participants

SECONDARY outcome

Timeframe: Up to 45 days

Population: Safety Population.

The potential clinical concern range for hematology parameters were: Hemoglobin (low: \> 25 gram per Liter change from Baseline/Day 1 and high: \> 180 gram per Liter), lymphocytes (low: \< 0.8 gigacells/L), hematocrit (low: \> 0.075 ratio change from Baseline and high: \> 0.54 ratio), neutrophil count (low: \< 1.5\*10\^9/Liter), platelet count (low: \< 100 gigacells/L and high: \> 550 gigacells/L), white blood cell (WBC) count (low: \< 3 gigacells/L and high: \> 20 gigacells/L). Number of participants with hematology abnormalities of potential clinical importance are presented.

Outcome measures

Outcome measures
Measure
89Zr-GSK3128349
n=8 Participants
Eligible participants received a single dose of 89Zr-GSK3128349 as an IV infusion over 20 minutes to deliver a dose of 1 mg.
Number of Participants With Hematology Data of Potential Clinical Concern
0 Participants

SECONDARY outcome

Timeframe: Pre-dose on Day 1, 1 h and 24 h post-dose on Day 1 and Day 45

Population: Safety Population.

ECG measurements were made with the participant in a supine position having rested in this position for at least 5 minutes before each reading. Triplicate 12-lead ECGS were obtained pre dose at Day 1 and single 12-lead ECGs will be obtained at other time points during the study. The potential clinical concern range for ECG parameters was as follows: Absolute corrected QT (QTc) interval (lower: \>450 milliseconds \[msec\], \>450 msec, \>=480 msec and \>=500 msec) and (higher: \<=479 msec and \<=499 msec); absolute PR interval (lower: \<110 and higher \>220 msec) and absolute QRS interval (lower: \<75 msec and \>110 msec). Number of participants with ECG values of potential clinical concern are presented.

Outcome measures

Outcome measures
Measure
89Zr-GSK3128349
n=8 Participants
Eligible participants received a single dose of 89Zr-GSK3128349 as an IV infusion over 20 minutes to deliver a dose of 1 mg.
Number of Participants With Electrocardiogram (ECG) Values of Potential Clinical Concern
QRS duration
1 Participants
Number of Participants With Electrocardiogram (ECG) Values of Potential Clinical Concern
Heart rate
0 Participants
Number of Participants With Electrocardiogram (ECG) Values of Potential Clinical Concern
PR interval
0 Participants
Number of Participants With Electrocardiogram (ECG) Values of Potential Clinical Concern
RR interval
0 Participants
Number of Participants With Electrocardiogram (ECG) Values of Potential Clinical Concern
QT interval
0 Participants
Number of Participants With Electrocardiogram (ECG) Values of Potential Clinical Concern
QT interval corrected by Bazett's formula
0 Participants
Number of Participants With Electrocardiogram (ECG) Values of Potential Clinical Concern
QT interval corrected by Fridericia formula
0 Participants

SECONDARY outcome

Timeframe: Up to 45 days

Population: Safety Population.

Vital signs included pulse rate, systolic and diastolic blood pressure and body temperature. All vital sign measurements were made with the participant in a supine position and rested in this position for at least 5 minutes before each reading. The potential clinical concern range for systolic blood pressure: \<85 and \>160 millimeters of mercury (mmHg), for diastolic: \<45 and \>100 mmHg and heart rate: \<40 and \>110 beats per minute. Number of participants with vital signs of potential clinical concern are presented.

Outcome measures

Outcome measures
Measure
89Zr-GSK3128349
n=8 Participants
Eligible participants received a single dose of 89Zr-GSK3128349 as an IV infusion over 20 minutes to deliver a dose of 1 mg.
Number of Participants With Vital Signs of Potential Clinical Concern
0 Participants

SECONDARY outcome

Timeframe: Pre-dose on Day 1 and Day 43

Population: Safety Population.

Blood samples for testing antibodies against GSK3128349 will be collected on Day 1 (pre-dose) and on Day 43. The actual date and time of each blood sample collection was recorded. The first blood sample was taken pre-dose on Day 1 to determine the presence, if any, of pre-existing Anti Drug Antibodies (ADAs). The presence of such antibodies was assessed using an electrochemiluminescent (ECL) immuno assay. If sera contain anti-GSK3128349 antibodies, they were further analyzed for the antibody specificity and titres. Number of participants who were found to have anti-GSK3128349 antibodies are presented.

Outcome measures

Outcome measures
Measure
89Zr-GSK3128349
n=8 Participants
Eligible participants received a single dose of 89Zr-GSK3128349 as an IV infusion over 20 minutes to deliver a dose of 1 mg.
Number of Participants With Positive Anti-GSK3128349 Antibody Assay
1 Participants

SECONDARY outcome

Timeframe: Pre-dose on Day 1 and Day 43

Population: Safety Population. Only those participants with positive anti-GSK3128349 antibody assay were analyzed.

Blood samples for testing antibodies against GSK3128349 will be collected on Day 1 (pre-dose) and on Day 43. The actual date and time of each blood sample collection was recorded. The first blood sample was taken pre-dose on Day 1 to determine the presence, if any, of pre-existing ADAs. The presence of such antibodies and serum titers of anti-GSK3128349 antibodies was assessed using an ECL immuno-assay. If sera contain anti-GSK3128349 antibodies, they were further analyzed for the antibody specificity and titers.

Outcome measures

Outcome measures
Measure
89Zr-GSK3128349
n=1 Participants
Eligible participants received a single dose of 89Zr-GSK3128349 as an IV infusion over 20 minutes to deliver a dose of 1 mg.
Serum Titers of Anti-GSK3128349 Antibodies
Day 1, pre-dose
80 Titers
Standard Deviation NA
NA indicates Not Available because single participant was analyzed so Standard deviation could not be derived.
Serum Titers of Anti-GSK3128349 Antibodies
Day 43
40 Titers
Standard Deviation NA
NA indicates Not Available because single participant was analyzed so Standard deviation could not be derived.

Adverse Events

89Zr-GSK3128349

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

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
89Zr-GSK3128349
n=8 participants at risk
Eligible participants received a single dose of 89Zr-GSK3128349 as an IV infusion over 20 minutes to deliver a dose of 1 mg.
Infections and infestations
Influenza
12.5%
1/8 • Up to 45 days
SAE and non-SAE are reported for the Safety Population which comprised of all participants who received a dose of 89Zr-GSK3128349.
Infections and infestations
Nasopharyngitis
12.5%
1/8 • Up to 45 days
SAE and non-SAE are reported for the Safety Population which comprised of all participants who received a dose of 89Zr-GSK3128349.
Gastrointestinal disorders
Flatulence
12.5%
1/8 • Up to 45 days
SAE and non-SAE are reported for the Safety Population which comprised of all participants who received a dose of 89Zr-GSK3128349.

Additional Information

GSK Response Center

GlaxoSmithKline

Phone: 866-435-7343

Results disclosure agreements

  • Principal investigator is a sponsor employee GSK agreements may vary with individual investigators, but will not prohibit any investigator from publishing. GSK supports the publication of results from all centers of a multi-center trial but requests that reports based on single-site data not precede the primary publication of the entire clinical trial.
  • Publication restrictions are in place

Restriction type: OTHER