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A Study of Tralokinumab When Delivered Subcutaneously at Different Flow Rates to Healthy Volunteers

A Phase 1 Study to Evaluate the Pharmacokinetics and Tolerability of a Single Subcutaneous Dose of Tralokinumab When Delivered as a 2 mL Injection at Different Flow Rates to Healthy Volunteers

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02085473
Enrollment
60
Registered
2014-03-12
Start date
2014-03-19
Completion date
2014-07-10
Last updated
2018-12-31

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

Conditions

Asthma, Healthy Subjects or Volunteers

Keywords

Asthma, Healthy Subjects or Volunteers, Tralokinumab, CAT-354

Brief summary

The primary objective of this study is to evaluate the pharmacokinetics (PK) and tolerability of tralokinumab when delivered subcutaneously at different flow rates to healthy volunteers.

Detailed description

This is a Phase 1, open-label, assessor-blind, parallel-group study to evaluate the PK and tolerability of a single subcutaneous dose of 300 milligram (mg) tralokinumab when delivered as a 2 milliliters (mL) injection at different flow rates to healthy adult volunteers.

Interventions

Participants will receive 300 milligram (mg) tralokinumab when delivered as a 2 milliliter (mL) subcutaneous injection at different flow rates.

Sponsors

MedImmune LLC
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
19 Years to 65 Years
Healthy volunteers
Yes

Inclusion criteria

Key Inclusion Criteria: * Healthy males and females ages 19-65 years * Body mass index of 19.0-30.0 kilogram per meter square (kg/m\^2) * No clinically significant abnormality * Vital signs, electrocardiogram (ECG), and laboratory parameters within normal range * Negative alcohol and drug screens * Females of childbearing potential who are sexually active with a nonsterilized male partner must use highly effective contraception * Nonsterilized males who are sexually active with a female partner of childbearing potential must use highly effective contraception. Key

Exclusion criteria

* Concurrent enrollment in another clinical study where the subject is receiving an investigational product * Receipt of any marketed or investigational biologic agent within 4 months or 5 half-lives prior to screening, whichever is longer * Receipt of any investigational nonbiologic agent within 3 months or 5 half-lives prior to screening, whichever is longer * Current use of regular pain-modifying, anti-depressant, anxiolytic, or hypnotic medication * History of thrombocytopenia or bleeding disorder or use of anticoagulants * History of any immunodeficiency disorder or use of immunosuppressive medication. * History of a clinically significant infection * History of cancer * Positive Hepatitis B or C * Positive HIV

Design outcomes

Primary

MeasureTime frameDescription
Area Under the Concentration-Time Curve From Zero to Infinity (AUC [0-infinity])Day 1 (pre-dose sample collected within 30 minutes prior to study drug administration), Days 2, 4, 6, 8, 10, 15, 22, 36, and 57 post-doseAUC (0 - infinity) = Area under the serum concentration versus time curve (AUC) from time zero to infinite time, obtained from AUC (0 - t) plus AUC (t - infinity). Units are day\*micrograms per millilitres = day\*mcg/mL.
Maximum Observed Serum Concentration (Cmax)Day 1 (pre-dose sample collected within 30 minutes prior to study drug administration), Days 2, 4, 6, 8, 10, 15, 22, 36, and 57 post-doseThe Cmax is the maximum observed serum concentration of tralokinumab.
Time to Maximum Concentration (Tmax)Day 1 (pre-dose sample collected within 30 minutes prior to study drug administration), Days 2, 4, 6, 8, 10, 15, 22, 36, and 57 post-doseTmax is defined as actual sampling time to reach maximum observed tralokinumab concentration.
Area Under the Concentration-Time Curve From Zero to Last Measurable Concentration (AUC [0-t])Day 1 (pre-dose sample collected within 30 minutes prior to study drug administration), Days 2, 4, 6, 8, 10, 15, 22, 36, and 57 post-doseAUC \[0-t\] is defined as area under the serum concentration-time curve from zero to last observed tralokinumab concentration.
Terminal Elimination Half-life (t1/2)Day 1 (pre-dose sample collected within 30 minutes prior to study drug administration), Days 2, 4, 6, 8, 10, 15, 22, 36, and 57 post-doseTerminal elimination half-life is the time measured for the serum concentration to decrease by one half. It is associated with the terminal slope of the semi logarithmic drug concentration-time curve, and is calculated as 0.693/lambda(z).
Apparent Systemic Clearance (CL/F) After Subcutaneous DoseDay 1 (pre-dose sample collected within 30 minutes prior to study drug administration), Days 2, 4, 6, 8, 10, 15, 22, 36, and 57 post-doseClearance of a drug is a measure of the rate at which a drug is metabolized or eliminated by normal biological processes. Clearance obtained after subcutaneous dose (apparent systemic clearance) is influenced by the fraction of the dose absorbed (bioavailability).
Apparent Terminal-Phase Volume of Distribution (Vz/F)Day 1 (pre-dose sample collected within 30 minutes prior to study drug administration), Days 2, 4, 6, 8, 10, 15, 22, 36, and 57 post-doseVolume of distribution was defined as the theoretical volume in which the total amount of drug would need to be uniformly distributed to produce the desired serum concentration of a drug.

Secondary

MeasureTime frameDescription
Local Injection-Site Pain and Injection-Site PruritusDuring the injection until 72 hours post-injection for injection site-pain and immediately after administration of injection until 72 hours for injection-site pruritusLocal injection-site pain and pruritus intensity was rated on 0 to 100 millimeter (mm) visual analogue scale (VAS) at various time points, where 0 = no pain/ no pruritus; 100 = most severe pain/ most severe pruritus. Injection site pruritus intensity was assessed by the blinded assessor. Higher the score indicated higher intensity of pain and pruritus. Local injection site pain and pruritus was assessed at below time-points: 1 and 6 minute (min) during investigational product administration (IPA); immediately post IPA, 10, 20, 30, and 60 min, 2, 4, 8, 24 and 72 hour (h) post IPA.
Number of Participants Reporting Local Injection-Site Reactions0, 10, 20, 30 and 60 minutes, 2, 4, 8, 24 and 72 hours post-injectionThe signs and/or symptoms of local injection-site reactions including erythema, hematoma or bleeding, local warmth, swelling, and/or rash occurring within 72 hours post-injection were assessed and recorded by a blinded assessor.
Number of Participants Reporting Treatment-Emergent Adverse Events (TEAEs) and Treatment-Emergent Serious Adverse Events (TESAEs)From start of study drug administration up to Day 57An adverse event (AE) was any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. A serious adverse event (SAE) was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly and important medical event. Treatment-emergent were events between administration of study drug and up to Day 57 that were absent before treatment or that worsened relative to pre-treatment state.
Number of Participants Reporting Treatment-emergent Adverse Events Related to Physical ExaminationDay 1 to Day 57The treatment-emergent adverse events related to physical examination were reported as per investigator discretion. Treatment-emergent were the events between administration of study drug and up to Day 57 that were absent before treatment or that worsened relative to pre-treatment state.
Number of Participants Reporting Treatment-emergent Adverse Events Related to Vital SignsDay 1 to Day 57Vital signs included systolic blood pressure, diastolic blood pressure, heart rate, respiratory rate and temperature. The treatment-emergent adverse events related to vital signs were reported as per investigator discretion. Treatment-emergent were the events between administration of study drug and up to Day 57 that were absent before treatment or that worsened relative to pre-treatment state.
Number of Participants Reporting Treatment-emergent Adverse Events in Laboratory ParametersDay 1 to Day 57Laboratory parameters included hematology, serum chemistry and urinalysis. The treatment-emergent adverse events in laboratory parameters were reported as per investigator discretion. Treatment-emergent were the events between administration of study drug and up to Day 57 that were absent before treatment or that worsened relative to pre-treatment state.
Number of Participants Exhibiting Anti-Drug Antibodies for Tralokinumab at Any VisitPre-dose on Day 1 and Day 57Immunogenicity assessment included determination of anti-drug antibodies to tralokinumab (CAT-354) antibodies in serum samples.

Countries

United States

Participant flow

Recruitment details

This study was conducted between 19Mar2014 and 10Jul2014.

Pre-assignment details

A total of 149 participants were screened for the study, out of which 60 participants were randomized and completed in the study.

Participants by arm

ArmCount
Cohort 1
Participants received 300 milligram (mg) tralokinumab when delivered as a 2 milliliter (mL) subcutaneous injection at a flow rate of 6 mL/min.
15
Cohort 2
Participants received 300 milligram (mg) tralokinumab when delivered as a 2 milliliter (mL) subcutaneous injection at a flow rate of 12 mL/min.
15
Cohort 3
Participants received 300 milligram (mg) tralokinumab when delivered as a 2 milliliter (mL) subcutaneous injection at a flow rate of 2 mL/min.
15
Cohort 4
Participants received 300 milligram (mg) tralokinumab when delivered as a 2 milliliter (mL) subcutaneous injection at a flow rate of 0.167 mL/min.
15
Total60

Baseline characteristics

CharacteristicCohort 1Cohort 2Cohort 3Cohort 4Total
Age, Continuous36.5 Years
STANDARD_DEVIATION 9.5
39.7 Years
STANDARD_DEVIATION 13.5
38.5 Years
STANDARD_DEVIATION 14.1
38.4 Years
STANDARD_DEVIATION 12.3
38.3 Years
STANDARD_DEVIATION 12.2
Sex: Female, Male
Female
7 Participants7 Participants8 Participants8 Participants30 Participants
Sex: Female, Male
Male
8 Participants8 Participants7 Participants7 Participants30 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
0 / 150 / 150 / 150 / 15
other
Total, other adverse events
5 / 155 / 154 / 154 / 15
serious
Total, serious adverse events
0 / 150 / 150 / 150 / 15

Outcome results

Primary

Apparent Systemic Clearance (CL/F) After Subcutaneous Dose

Clearance of a drug is a measure of the rate at which a drug is metabolized or eliminated by normal biological processes. Clearance obtained after subcutaneous dose (apparent systemic clearance) is influenced by the fraction of the dose absorbed (bioavailability).

Time frame: Day 1 (pre-dose sample collected within 30 minutes prior to study drug administration), Days 2, 4, 6, 8, 10, 15, 22, 36, and 57 post-dose

Population: The PK population included all participants in the as-treated population with at least one detectable tralokinumab serum concentration. Here N signifies participants who were evaluable for this measure.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Cohort 1Apparent Systemic Clearance (CL/F) After Subcutaneous Dose210.31 milliliters per day (mL/day)Geometric Coefficient of Variation 33.39
Cohort 2Apparent Systemic Clearance (CL/F) After Subcutaneous Dose241.30 milliliters per day (mL/day)Geometric Coefficient of Variation 29.16
Cohort 3Apparent Systemic Clearance (CL/F) After Subcutaneous Dose239.69 milliliters per day (mL/day)Geometric Coefficient of Variation 44.34
Cohort 4Apparent Systemic Clearance (CL/F) After Subcutaneous Dose334.44 milliliters per day (mL/day)Geometric Coefficient of Variation 355.5
Primary

Apparent Terminal-Phase Volume of Distribution (Vz/F)

Volume of distribution was defined as the theoretical volume in which the total amount of drug would need to be uniformly distributed to produce the desired serum concentration of a drug.

Time frame: Day 1 (pre-dose sample collected within 30 minutes prior to study drug administration), Days 2, 4, 6, 8, 10, 15, 22, 36, and 57 post-dose

Population: The PK population included all participants in the as-treated population with at least one detectable tralokinumab serum concentration. Here N signifies participants who were evaluable for this measure.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Cohort 1Apparent Terminal-Phase Volume of Distribution (Vz/F)6559.99 milliliters (mL)Geometric Coefficient of Variation 29.85
Cohort 2Apparent Terminal-Phase Volume of Distribution (Vz/F)7657.96 milliliters (mL)Geometric Coefficient of Variation 30.13
Cohort 3Apparent Terminal-Phase Volume of Distribution (Vz/F)7577.56 milliliters (mL)Geometric Coefficient of Variation 35.17
Cohort 4Apparent Terminal-Phase Volume of Distribution (Vz/F)9944.14 milliliters (mL)Geometric Coefficient of Variation 355.4
Primary

Area Under the Concentration-Time Curve From Zero to Infinity (AUC [0-infinity])

AUC (0 - infinity) = Area under the serum concentration versus time curve (AUC) from time zero to infinite time, obtained from AUC (0 - t) plus AUC (t - infinity). Units are day\*micrograms per millilitres = day\*mcg/mL.

Time frame: Day 1 (pre-dose sample collected within 30 minutes prior to study drug administration), Days 2, 4, 6, 8, 10, 15, 22, 36, and 57 post-dose

Population: The Pharmacokinetic (PK) population included all participants in the as-treated population with at least one detectable tralokinumab serum concentration. Here N signifies participants who were evaluable for this measure.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Cohort 1Area Under the Concentration-Time Curve From Zero to Infinity (AUC [0-infinity])1426.47 day*mcg/mLGeometric Coefficient of Variation 30.12
Cohort 2Area Under the Concentration-Time Curve From Zero to Infinity (AUC [0-infinity])1243.28 day*mcg/mLGeometric Coefficient of Variation 25.78
Cohort 3Area Under the Concentration-Time Curve From Zero to Infinity (AUC [0-infinity])1251.63 day*mcg/mLGeometric Coefficient of Variation 45.46
Cohort 4Area Under the Concentration-Time Curve From Zero to Infinity (AUC [0-infinity])897.02 day*mcg/mLGeometric Coefficient of Variation 39.13
Primary

Area Under the Concentration-Time Curve From Zero to Last Measurable Concentration (AUC [0-t])

AUC \[0-t\] is defined as area under the serum concentration-time curve from zero to last observed tralokinumab concentration.

Time frame: Day 1 (pre-dose sample collected within 30 minutes prior to study drug administration), Days 2, 4, 6, 8, 10, 15, 22, 36, and 57 post-dose

Population: The PK population included all participants in the as-treated population with at least one detectable tralokinumab serum concentration. Here N signifies participants who were evaluable for this measure.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Cohort 1Area Under the Concentration-Time Curve From Zero to Last Measurable Concentration (AUC [0-t])1154.91 day*mcg/mLGeometric Coefficient of Variation 25.92
Cohort 2Area Under the Concentration-Time Curve From Zero to Last Measurable Concentration (AUC [0-t])998.08 day*mcg/mLGeometric Coefficient of Variation 21.87
Cohort 3Area Under the Concentration-Time Curve From Zero to Last Measurable Concentration (AUC [0-t])1013.98 day*mcg/mLGeometric Coefficient of Variation 41.4
Cohort 4Area Under the Concentration-Time Curve From Zero to Last Measurable Concentration (AUC [0-t])685.66 day*mcg/mLGeometric Coefficient of Variation 35.85
Primary

Maximum Observed Serum Concentration (Cmax)

The Cmax is the maximum observed serum concentration of tralokinumab.

Time frame: Day 1 (pre-dose sample collected within 30 minutes prior to study drug administration), Days 2, 4, 6, 8, 10, 15, 22, 36, and 57 post-dose

Population: The PK population included all participants in the as-treated population with at least one detectable tralokinumab serum concentration. Here N signifies participants who were evaluable for this measure.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Cohort 1Maximum Observed Serum Concentration (Cmax)41.65 microgram per milliliter (mcg/mL)Geometric Coefficient of Variation 28.2
Cohort 2Maximum Observed Serum Concentration (Cmax)34.07 microgram per milliliter (mcg/mL)Geometric Coefficient of Variation 19.64
Cohort 3Maximum Observed Serum Concentration (Cmax)36.12 microgram per milliliter (mcg/mL)Geometric Coefficient of Variation 35.69
Cohort 4Maximum Observed Serum Concentration (Cmax)27.04 microgram per milliliter (mcg/mL)Geometric Coefficient of Variation 33.86
Primary

Terminal Elimination Half-life (t1/2)

Terminal elimination half-life is the time measured for the serum concentration to decrease by one half. It is associated with the terminal slope of the semi logarithmic drug concentration-time curve, and is calculated as 0.693/lambda(z).

Time frame: Day 1 (pre-dose sample collected within 30 minutes prior to study drug administration), Days 2, 4, 6, 8, 10, 15, 22, 36, and 57 post-dose

Population: The PK population included all participants in the as-treated population with at least one detectable tralokinumab serum concentration. Here N signifies participants who were evaluable for this measure.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Cohort 1Terminal Elimination Half-life (t1/2)21.62 dayGeometric Coefficient of Variation 26.34
Cohort 2Terminal Elimination Half-life (t1/2)22.00 dayGeometric Coefficient of Variation 24.11
Cohort 3Terminal Elimination Half-life (t1/2)21.91 dayGeometric Coefficient of Variation 19.31
Cohort 4Terminal Elimination Half-life (t1/2)20.61 dayGeometric Coefficient of Variation 20.74
Primary

Time to Maximum Concentration (Tmax)

Tmax is defined as actual sampling time to reach maximum observed tralokinumab concentration.

Time frame: Day 1 (pre-dose sample collected within 30 minutes prior to study drug administration), Days 2, 4, 6, 8, 10, 15, 22, 36, and 57 post-dose

Population: The PK population included all participants in the as-treated population with at least one detectable tralokinumab serum concentration. Here N signifies participants who were evaluable for this measure.

ArmMeasureValue (MEDIAN)
Cohort 1Time to Maximum Concentration (Tmax)8 day
Cohort 2Time to Maximum Concentration (Tmax)6 day
Cohort 3Time to Maximum Concentration (Tmax)8 day
Cohort 4Time to Maximum Concentration (Tmax)6 day
Secondary

Local Injection-Site Pain and Injection-Site Pruritus

Local injection-site pain and pruritus intensity was rated on 0 to 100 millimeter (mm) visual analogue scale (VAS) at various time points, where 0 = no pain/ no pruritus; 100 = most severe pain/ most severe pruritus. Injection site pruritus intensity was assessed by the blinded assessor. Higher the score indicated higher intensity of pain and pruritus. Local injection site pain and pruritus was assessed at below time-points: 1 and 6 minute (min) during investigational product administration (IPA); immediately post IPA, 10, 20, 30, and 60 min, 2, 4, 8, 24 and 72 hour (h) post IPA.

Time frame: During the injection until 72 hours post-injection for injection site-pain and immediately after administration of injection until 72 hours for injection-site pruritus

Population: As-treated population included all participants who were randomized and received any study drug. Here, N signifies number of participants analyzed for this outcome measure.

ArmMeasureGroupValue (MEAN)Dispersion
Cohort 1Local Injection-Site Pain and Injection-Site PruritusPruritus:8h Post IPA0.4 millimole (mmol)Standard Deviation 0.6
Cohort 1Local Injection-Site Pain and Injection-Site PruritusPruritus:Immediately Post IPA4.8 millimole (mmol)Standard Deviation 7.5
Cohort 1Local Injection-Site Pain and Injection-Site PruritusPain:2h Post IPA0.3 millimole (mmol)Standard Deviation 0.6
Cohort 1Local Injection-Site Pain and Injection-Site PruritusPruritus:10 min Post IPA0.9 millimole (mmol)Standard Deviation 0.9
Cohort 1Local Injection-Site Pain and Injection-Site PruritusPruritus:72h Post IPA0.5 millimole (mmol)Standard Deviation 0.8
Cohort 1Local Injection-Site Pain and Injection-Site PruritusPruritus:4h Post IPA0.6 millimole (mmol)Standard Deviation 0.7
Cohort 1Local Injection-Site Pain and Injection-Site PruritusPain:4h Post IPA0.5 millimole (mmol)Standard Deviation 0.7
Cohort 1Local Injection-Site Pain and Injection-Site PruritusPruritus:24h Post IPA0.6 millimole (mmol)Standard Deviation 0.7
Cohort 1Local Injection-Site Pain and Injection-Site PruritusPain:10 min Post IPA6.9 millimole (mmol)Standard Deviation 13.9
Cohort 1Local Injection-Site Pain and Injection-Site PruritusPain:30 min Post IPA0.7 millimole (mmol)Standard Deviation 1
Cohort 1Local Injection-Site Pain and Injection-Site PruritusPain:8h Post IPA0.5 millimole (mmol)Standard Deviation 0.7
Cohort 1Local Injection-Site Pain and Injection-Site PruritusPruritus:60 min Post IPA0.6 millimole (mmol)Standard Deviation 0.8
Cohort 1Local Injection-Site Pain and Injection-Site PruritusPain:20 min Post IPA2.3 millimole (mmol)Standard Deviation 5
Cohort 1Local Injection-Site Pain and Injection-Site PruritusPruritus:2h Post IPA0.4 millimole (mmol)Standard Deviation 0.6
Cohort 1Local Injection-Site Pain and Injection-Site PruritusPain:24h Post IPA0.4 millimole (mmol)Standard Deviation 0.6
Cohort 1Local Injection-Site Pain and Injection-Site PruritusPruritus:30 min Post IPA0.5 millimole (mmol)Standard Deviation 0.7
Cohort 1Local Injection-Site Pain and Injection-Site PruritusPain: Immediately Post IPA21.9 millimole (mmol)Standard Deviation 20.9
Cohort 1Local Injection-Site Pain and Injection-Site PruritusPain:60 min Post IPA0.7 millimole (mmol)Standard Deviation 1
Cohort 1Local Injection-Site Pain and Injection-Site PruritusPain:72h Post IPA0.6 millimole (mmol)Standard Deviation 0.8
Cohort 1Local Injection-Site Pain and Injection-Site PruritusPruritus:20 min Post IPA0.7 millimole (mmol)Standard Deviation 0.8
Cohort 2Local Injection-Site Pain and Injection-Site PruritusPain:72h Post IPA1.1 millimole (mmol)Standard Deviation 1.7
Cohort 2Local Injection-Site Pain and Injection-Site PruritusPruritus:Immediately Post IPA15.1 millimole (mmol)Standard Deviation 20.2
Cohort 2Local Injection-Site Pain and Injection-Site PruritusPruritus:30 min Post IPA1.1 millimole (mmol)Standard Deviation 1.4
Cohort 2Local Injection-Site Pain and Injection-Site PruritusPruritus:10 min Post IPA3.1 millimole (mmol)Standard Deviation 3.8
Cohort 2Local Injection-Site Pain and Injection-Site PruritusPain:20 min Post IPA3.7 millimole (mmol)Standard Deviation 7.6
Cohort 2Local Injection-Site Pain and Injection-Site PruritusPruritus:20 min Post IPA1.9 millimole (mmol)Standard Deviation 2
Cohort 2Local Injection-Site Pain and Injection-Site PruritusPain: Immediately Post IPA41.0 millimole (mmol)Standard Deviation 27.7
Cohort 2Local Injection-Site Pain and Injection-Site PruritusPain:30 min Post IPA1.3 millimole (mmol)Standard Deviation 1.4
Cohort 2Local Injection-Site Pain and Injection-Site PruritusPruritus:72h Post IPA1.0 millimole (mmol)Standard Deviation 1.4
Cohort 2Local Injection-Site Pain and Injection-Site PruritusPruritus:8h Post IPA1.1 millimole (mmol)Standard Deviation 1.8
Cohort 2Local Injection-Site Pain and Injection-Site PruritusPain:60 min Post IPA1.1 millimole (mmol)Standard Deviation 1.5
Cohort 2Local Injection-Site Pain and Injection-Site PruritusPruritus:4h Post IPA0.8 millimole (mmol)Standard Deviation 1.4
Cohort 2Local Injection-Site Pain and Injection-Site PruritusPain:2h Post IPA0.9 millimole (mmol)Standard Deviation 1.3
Cohort 2Local Injection-Site Pain and Injection-Site PruritusPain:4h Post IPA0.9 millimole (mmol)Standard Deviation 1.6
Cohort 2Local Injection-Site Pain and Injection-Site PruritusPruritus:2h Post IPA0.7 millimole (mmol)Standard Deviation 1.3
Cohort 2Local Injection-Site Pain and Injection-Site PruritusPain:8h Post IPA0.7 millimole (mmol)Standard Deviation 1.4
Cohort 2Local Injection-Site Pain and Injection-Site PruritusPain:10 min Post IPA7.1 millimole (mmol)Standard Deviation 7.7
Cohort 2Local Injection-Site Pain and Injection-Site PruritusPain:24h Post IPA0.7 millimole (mmol)Standard Deviation 1.6
Cohort 2Local Injection-Site Pain and Injection-Site PruritusPruritus:60 min Post IPA1.0 millimole (mmol)Standard Deviation 1.9
Cohort 2Local Injection-Site Pain and Injection-Site PruritusPruritus:24h Post IPA0.6 millimole (mmol)Standard Deviation 1.5
Cohort 3Local Injection-Site Pain and Injection-Site PruritusPain:60 min Post IPA0.7 millimole (mmol)Standard Deviation 1
Cohort 3Local Injection-Site Pain and Injection-Site PruritusPain: Immediately Post IPA17.7 millimole (mmol)Standard Deviation 15.5
Cohort 3Local Injection-Site Pain and Injection-Site PruritusPain:10 min Post IPA9.5 millimole (mmol)Standard Deviation 16.3
Cohort 3Local Injection-Site Pain and Injection-Site PruritusPain:20 min Post IPA1.8 millimole (mmol)Standard Deviation 2.6
Cohort 3Local Injection-Site Pain and Injection-Site PruritusPain:30 min Post IPA1.3 millimole (mmol)Standard Deviation 2.2
Cohort 3Local Injection-Site Pain and Injection-Site PruritusPain:2h Post IPA0.8 millimole (mmol)Standard Deviation 1
Cohort 3Local Injection-Site Pain and Injection-Site PruritusPain:4h Post IPA0.7 millimole (mmol)Standard Deviation 0.9
Cohort 3Local Injection-Site Pain and Injection-Site PruritusPain:8h Post IPA0.5 millimole (mmol)Standard Deviation 0.7
Cohort 3Local Injection-Site Pain and Injection-Site PruritusPain:24h Post IPA0.4 millimole (mmol)Standard Deviation 0.6
Cohort 3Local Injection-Site Pain and Injection-Site PruritusPain:72h Post IPA0.5 millimole (mmol)Standard Deviation 0.8
Cohort 3Local Injection-Site Pain and Injection-Site PruritusPruritus:Immediately Post IPA4.0 millimole (mmol)Standard Deviation 5.6
Cohort 3Local Injection-Site Pain and Injection-Site PruritusPruritus:10 min Post IPA1.9 millimole (mmol)Standard Deviation 2.3
Cohort 3Local Injection-Site Pain and Injection-Site PruritusPruritus:20 min Post IPA1.5 millimole (mmol)Standard Deviation 1.5
Cohort 3Local Injection-Site Pain and Injection-Site PruritusPruritus:30 min Post IPA0.9 millimole (mmol)Standard Deviation 1.3
Cohort 3Local Injection-Site Pain and Injection-Site PruritusPruritus:60 min Post IPA0.7 millimole (mmol)Standard Deviation 1
Cohort 3Local Injection-Site Pain and Injection-Site PruritusPruritus:2h Post IPA0.7 millimole (mmol)Standard Deviation 1
Cohort 3Local Injection-Site Pain and Injection-Site PruritusPruritus:4h Post IPA0.6 millimole (mmol)Standard Deviation 0.7
Cohort 3Local Injection-Site Pain and Injection-Site PruritusPruritus:8h Post IPA0.7 millimole (mmol)Standard Deviation 0.6
Cohort 3Local Injection-Site Pain and Injection-Site PruritusPruritus:24h Post IPA0.3 millimole (mmol)Standard Deviation 0.6
Cohort 3Local Injection-Site Pain and Injection-Site PruritusPruritus:72h Post IPA0.6 millimole (mmol)Standard Deviation 1
Cohort 4Local Injection-Site Pain and Injection-Site PruritusPruritus:72h Post IPA0.7 millimole (mmol)Standard Deviation 1
Cohort 4Local Injection-Site Pain and Injection-Site PruritusPruritus:60 min Post IPA1.3 millimole (mmol)Standard Deviation 1.1
Cohort 4Local Injection-Site Pain and Injection-Site PruritusPain:8h Post IPA1.1 millimole (mmol)Standard Deviation 1.6
Cohort 4Local Injection-Site Pain and Injection-Site PruritusPain:4h Post IPA1.0 millimole (mmol)Standard Deviation 1.5
Cohort 4Local Injection-Site Pain and Injection-Site PruritusPruritus:24h Post IPA0.7 millimole (mmol)Standard Deviation 1.3
Cohort 4Local Injection-Site Pain and Injection-Site PruritusPruritus:2h Post IPA0.8 millimole (mmol)Standard Deviation 1.3
Cohort 4Local Injection-Site Pain and Injection-Site PruritusPain:2h Post IPA0.9 millimole (mmol)Standard Deviation 1.6
Cohort 4Local Injection-Site Pain and Injection-Site PruritusPain:60 min Post IPA1.2 millimole (mmol)Standard Deviation 1.2
Cohort 4Local Injection-Site Pain and Injection-Site PruritusPain: Immediately Post IPA5.1 millimole (mmol)Standard Deviation 8
Cohort 4Local Injection-Site Pain and Injection-Site PruritusPruritus:4h Post IPA0.9 millimole (mmol)Standard Deviation 1.4
Cohort 4Local Injection-Site Pain and Injection-Site PruritusPain:1 min during IPA6.7 millimole (mmol)Standard Deviation 12.9
Cohort 4Local Injection-Site Pain and Injection-Site PruritusPain:30 min Post IPA1.2 millimole (mmol)Standard Deviation 1.3
Cohort 4Local Injection-Site Pain and Injection-Site PruritusPain:6 min during IPA4.8 millimole (mmol)Standard Deviation 5.9
Cohort 4Local Injection-Site Pain and Injection-Site PruritusPruritus:8h Post IPA1.2 millimole (mmol)Standard Deviation 2
Cohort 4Local Injection-Site Pain and Injection-Site PruritusPain:20 min Post IPA1.2 millimole (mmol)Standard Deviation 1.3
Cohort 4Local Injection-Site Pain and Injection-Site PruritusPruritus:20 min Post IPA2.5 millimole (mmol)Standard Deviation 3.8
Cohort 4Local Injection-Site Pain and Injection-Site PruritusPruritus:10 min Post IPA4.1 millimole (mmol)Standard Deviation 11.1
Cohort 4Local Injection-Site Pain and Injection-Site PruritusPruritus:Immediately Post IPA6.9 millimole (mmol)Standard Deviation 15.5
Cohort 4Local Injection-Site Pain and Injection-Site PruritusPain:10 min Post IPA1.3 millimole (mmol)Standard Deviation 1.3
Cohort 4Local Injection-Site Pain and Injection-Site PruritusPruritus:30 min Post IPA1.8 millimole (mmol)Standard Deviation 1.8
Cohort 4Local Injection-Site Pain and Injection-Site PruritusPain:72h Post IPA0.8 millimole (mmol)Standard Deviation 1.2
Cohort 4Local Injection-Site Pain and Injection-Site PruritusPain:24h Post IPA0.9 millimole (mmol)Standard Deviation 1.4
Secondary

Number of Participants Exhibiting Anti-Drug Antibodies for Tralokinumab at Any Visit

Immunogenicity assessment included determination of anti-drug antibodies to tralokinumab (CAT-354) antibodies in serum samples.

Time frame: Pre-dose on Day 1 and Day 57

Population: As-treated population included all participants who were randomized and received any study drug.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Cohort 1Number of Participants Exhibiting Anti-Drug Antibodies for Tralokinumab at Any Visit0 Participants
Cohort 2Number of Participants Exhibiting Anti-Drug Antibodies for Tralokinumab at Any Visit0 Participants
Cohort 3Number of Participants Exhibiting Anti-Drug Antibodies for Tralokinumab at Any Visit0 Participants
Cohort 4Number of Participants Exhibiting Anti-Drug Antibodies for Tralokinumab at Any Visit0 Participants
Secondary

Number of Participants Reporting Local Injection-Site Reactions

The signs and/or symptoms of local injection-site reactions including erythema, hematoma or bleeding, local warmth, swelling, and/or rash occurring within 72 hours post-injection were assessed and recorded by a blinded assessor.

Time frame: 0, 10, 20, 30 and 60 minutes, 2, 4, 8, 24 and 72 hours post-injection

Population: As-treated population included all participants who were randomized and received any study drug.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Cohort 1Number of Participants Reporting Local Injection-Site ReactionsErythema7 Participants
Cohort 1Number of Participants Reporting Local Injection-Site ReactionsHematoma or bleeding2 Participants
Cohort 1Number of Participants Reporting Local Injection-Site ReactionsLocal warmth0 Participants
Cohort 1Number of Participants Reporting Local Injection-Site ReactionsSwelling0 Participants
Cohort 1Number of Participants Reporting Local Injection-Site ReactionsRash0 Participants
Cohort 1Number of Participants Reporting Local Injection-Site ReactionsOther0 Participants
Cohort 2Number of Participants Reporting Local Injection-Site ReactionsOther0 Participants
Cohort 2Number of Participants Reporting Local Injection-Site ReactionsSwelling0 Participants
Cohort 2Number of Participants Reporting Local Injection-Site ReactionsErythema5 Participants
Cohort 2Number of Participants Reporting Local Injection-Site ReactionsLocal warmth0 Participants
Cohort 2Number of Participants Reporting Local Injection-Site ReactionsHematoma or bleeding1 Participants
Cohort 2Number of Participants Reporting Local Injection-Site ReactionsRash0 Participants
Cohort 3Number of Participants Reporting Local Injection-Site ReactionsHematoma or bleeding3 Participants
Cohort 3Number of Participants Reporting Local Injection-Site ReactionsLocal warmth0 Participants
Cohort 3Number of Participants Reporting Local Injection-Site ReactionsSwelling0 Participants
Cohort 3Number of Participants Reporting Local Injection-Site ReactionsOther0 Participants
Cohort 3Number of Participants Reporting Local Injection-Site ReactionsRash0 Participants
Cohort 3Number of Participants Reporting Local Injection-Site ReactionsErythema12 Participants
Cohort 4Number of Participants Reporting Local Injection-Site ReactionsRash0 Participants
Cohort 4Number of Participants Reporting Local Injection-Site ReactionsOther0 Participants
Cohort 4Number of Participants Reporting Local Injection-Site ReactionsHematoma or bleeding5 Participants
Cohort 4Number of Participants Reporting Local Injection-Site ReactionsSwelling0 Participants
Cohort 4Number of Participants Reporting Local Injection-Site ReactionsErythema11 Participants
Cohort 4Number of Participants Reporting Local Injection-Site ReactionsLocal warmth0 Participants
Secondary

Number of Participants Reporting Treatment-emergent Adverse Events in Laboratory Parameters

Laboratory parameters included hematology, serum chemistry and urinalysis. The treatment-emergent adverse events in laboratory parameters were reported as per investigator discretion. Treatment-emergent were the events between administration of study drug and up to Day 57 that were absent before treatment or that worsened relative to pre-treatment state.

Time frame: Day 1 to Day 57

Population: As-treated population included all participants who were randomized and received any study drug.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Cohort 1Number of Participants Reporting Treatment-emergent Adverse Events in Laboratory ParametersHematology0 Participants
Cohort 1Number of Participants Reporting Treatment-emergent Adverse Events in Laboratory ParametersUrinalysis0 Participants
Cohort 1Number of Participants Reporting Treatment-emergent Adverse Events in Laboratory ParametersSerum Chemistry0 Participants
Cohort 2Number of Participants Reporting Treatment-emergent Adverse Events in Laboratory ParametersHematology0 Participants
Cohort 2Number of Participants Reporting Treatment-emergent Adverse Events in Laboratory ParametersUrinalysis0 Participants
Cohort 2Number of Participants Reporting Treatment-emergent Adverse Events in Laboratory ParametersSerum Chemistry0 Participants
Cohort 3Number of Participants Reporting Treatment-emergent Adverse Events in Laboratory ParametersSerum Chemistry0 Participants
Cohort 3Number of Participants Reporting Treatment-emergent Adverse Events in Laboratory ParametersHematology0 Participants
Cohort 3Number of Participants Reporting Treatment-emergent Adverse Events in Laboratory ParametersUrinalysis0 Participants
Cohort 4Number of Participants Reporting Treatment-emergent Adverse Events in Laboratory ParametersHematology0 Participants
Cohort 4Number of Participants Reporting Treatment-emergent Adverse Events in Laboratory ParametersUrinalysis0 Participants
Cohort 4Number of Participants Reporting Treatment-emergent Adverse Events in Laboratory ParametersSerum Chemistry0 Participants
Secondary

Number of Participants Reporting Treatment-emergent Adverse Events Related to Physical Examination

The treatment-emergent adverse events related to physical examination were reported as per investigator discretion. Treatment-emergent were the events between administration of study drug and up to Day 57 that were absent before treatment or that worsened relative to pre-treatment state.

Time frame: Day 1 to Day 57

Population: As-treated population included all participants who were randomized and received any study drug.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Cohort 1Number of Participants Reporting Treatment-emergent Adverse Events Related to Physical Examination0 Participants
Cohort 2Number of Participants Reporting Treatment-emergent Adverse Events Related to Physical Examination0 Participants
Cohort 3Number of Participants Reporting Treatment-emergent Adverse Events Related to Physical Examination0 Participants
Cohort 4Number of Participants Reporting Treatment-emergent Adverse Events Related to Physical Examination0 Participants
Secondary

Number of Participants Reporting Treatment-emergent Adverse Events Related to Vital Signs

Vital signs included systolic blood pressure, diastolic blood pressure, heart rate, respiratory rate and temperature. The treatment-emergent adverse events related to vital signs were reported as per investigator discretion. Treatment-emergent were the events between administration of study drug and up to Day 57 that were absent before treatment or that worsened relative to pre-treatment state.

Time frame: Day 1 to Day 57

Population: As-treated population included all participants who were randomized and received any study drug.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Cohort 1Number of Participants Reporting Treatment-emergent Adverse Events Related to Vital Signs0 Participants
Cohort 2Number of Participants Reporting Treatment-emergent Adverse Events Related to Vital Signs0 Participants
Cohort 3Number of Participants Reporting Treatment-emergent Adverse Events Related to Vital Signs0 Participants
Cohort 4Number of Participants Reporting Treatment-emergent Adverse Events Related to Vital Signs0 Participants
Secondary

Number of Participants Reporting Treatment-Emergent Adverse Events (TEAEs) and Treatment-Emergent Serious Adverse Events (TESAEs)

An adverse event (AE) was any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. A serious adverse event (SAE) was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly and important medical event. Treatment-emergent were events between administration of study drug and up to Day 57 that were absent before treatment or that worsened relative to pre-treatment state.

Time frame: From start of study drug administration up to Day 57

Population: As-treated population included all participants who were randomized and received any study drug.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Cohort 1Number of Participants Reporting Treatment-Emergent Adverse Events (TEAEs) and Treatment-Emergent Serious Adverse Events (TESAEs)TEAEs5 Participants
Cohort 1Number of Participants Reporting Treatment-Emergent Adverse Events (TEAEs) and Treatment-Emergent Serious Adverse Events (TESAEs)TESAEs0 Participants
Cohort 2Number of Participants Reporting Treatment-Emergent Adverse Events (TEAEs) and Treatment-Emergent Serious Adverse Events (TESAEs)TESAEs0 Participants
Cohort 2Number of Participants Reporting Treatment-Emergent Adverse Events (TEAEs) and Treatment-Emergent Serious Adverse Events (TESAEs)TEAEs5 Participants
Cohort 3Number of Participants Reporting Treatment-Emergent Adverse Events (TEAEs) and Treatment-Emergent Serious Adverse Events (TESAEs)TEAEs4 Participants
Cohort 3Number of Participants Reporting Treatment-Emergent Adverse Events (TEAEs) and Treatment-Emergent Serious Adverse Events (TESAEs)TESAEs0 Participants
Cohort 4Number of Participants Reporting Treatment-Emergent Adverse Events (TEAEs) and Treatment-Emergent Serious Adverse Events (TESAEs)TEAEs4 Participants
Cohort 4Number of Participants Reporting Treatment-Emergent Adverse Events (TEAEs) and Treatment-Emergent Serious Adverse Events (TESAEs)TESAEs0 Participants

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