Phase 1 Single-ascending Dose Study to Evaluate Safety and Tolerability of MEDI4920 in Healthy Adults

Sponsor
MedImmune LLC (Industry)
Overall Status
Completed
CT.gov ID
NCT02151110
Collaborator
(none)
59
1
8
23.4
2.5

Study Details

Study Description

Brief Summary

Phase 1 single IV dose study to evaluate safety and tolerability of MEDI4920

Condition or Disease Intervention/Treatment Phase
  • Biological: MEDI4920 3 mg
  • Biological: MEDI4920 10 mg
  • Biological: MEDI4920 30 mg
  • Biological: MEDI4920 100 mg
  • Biological: MEDI4920 300 mg
  • Biological: MEDI4920 1000 mg
  • Biological: MEDI4920 3000 mg
  • Other: Placebo
Phase 1

Study Design

Study Type:
Interventional
Actual Enrollment :
59 participants
Allocation:
Randomized
Intervention Model:
Parallel Assignment
Masking:
Double (Participant, Investigator)
Primary Purpose:
Treatment
Official Title:
A Phase 1, Randomized, Blinded, Placebo-controlled, Single-ascending Dose Study to Evaluate the Safety and Tolerability of MEDI4920 in Healthy Adults
Actual Study Start Date :
May 27, 2014
Actual Primary Completion Date :
May 9, 2016
Actual Study Completion Date :
May 9, 2016

Arms and Interventions

Arm Intervention/Treatment
Placebo Comparator: Placebo

Participants received single IV dose of placebo matching with MEDI4920 infused on Day 1.

Other: Placebo
Participants received single IV dose of placebo matching with MEDI4920 infused on Day 1.

Experimental: MEDI4920 3 mg

Participants received single IV dose of MEDI4920 3 milligram (mg) infused on Day 1.

Biological: MEDI4920 3 mg
Participants received single IV dose of MEDI4920 3 milligram (mg) infused on Day 1.

Experimental: MEDI4920 10 mg

Participants received single IV dose of MEDI4920 10 mg infused on Day 1.

Biological: MEDI4920 10 mg
Participants received single IV dose of MEDI4920 10 mg infused on Day 1.

Experimental: MEDI4920 30 mg

Participants received single IV dose of MEDI4920 30 mg infused on Day 1.

Biological: MEDI4920 30 mg
Participants received single IV dose of MEDI4920 30 mg infused on Day 1.

Experimental: MEDI4920 100 mg

Participants received single IV dose of MEDI4920 100 mg infused on Day 1.

Biological: MEDI4920 100 mg
Participants received single IV dose of MEDI4920 100 mg infused on Day 1.

Experimental: MEDI4920 300 mg

Participants received single IV dose of MEDI4920 300 mg infused on Day 1.

Biological: MEDI4920 300 mg
Participants received single IV dose of MEDI4920 300 mg infused on Day 1.

Experimental: MEDI4920 1000 mg

Participants received single IV dose of MEDI4920 1000 mg infused on Day 1.

Biological: MEDI4920 1000 mg
Participants received single IV dose of MEDI4920 1000 mg infused on Day 1.

Experimental: MEDI4920 3000 mg

Participants received single IV dose of MEDI4920 3000 mg infused on Day 1.

Biological: MEDI4920 3000 mg
Participants received single IV dose of MEDI4920 3000 mg infused on Day 1.

Outcome Measures

Primary Outcome Measures

  1. Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Treatment Emergent Serious Adverse Events (TESAEs) [The start of study drug administration (Day 1) to the follow-up period (Day 113) or early discontinuation visit]

    An adverse event (AE) is any unfavourable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with the use of study drug, whether or not considered related to the study drug. A serious adverse event (SAE) is an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening situation (immediate risk of dying); persistent or significant disability or incapacity; congenital anomaly or birth defect in the offspring of a participant who received the study drug. A TEAE is defined as the event with onset after the start of infusion (Day 1) to Day 113 or early discontinuation visit inclusive. The AEs were summarized using Medical Dictionary for Regulatory Activities version 19.0.

Secondary Outcome Measures

  1. Maximum Observed Plasma Concentration (Cmax) of MEDI4920 [Pre-infusion, at the middle of the infusion, post-infusion (5 minutes, and 2, 6, and 12 hours) on Day 1; Days 2, 3, 5, 8, 15, 22, 29, 43, 57, 85, and 113 or early discontinuation visit, whichever occurred first]

    The maximum observed plasma concentration (Cmax) was estimated based on the plasma concentrations of MEDI4920. Standard deviation was calculated only if number of participants were more than or equal to 3.

  2. Area Under the Plasma Concentration-time Curve From Time Zero to the Time of the Last Quantifiable Concentration (AUC0-last) of MEDI4920 [Pre-infusion, at the middle of the infusion, post-infusion (5 minutes, and 2, 6, and 12 hours) on Day 1; Days 2, 3, 5, 8, 15, 22, 29, 43, 57, 85, and 113 or early discontinuation visit, whichever occurred first]

    The area under the plasma concentration-time curve from time zero to the time of the last quantifiable concentration (AUC0-last) was estimated based on the plasma concentrations of MEDI4920. Standard deviation was calculated only if number of participants were more than or equal to 3.

  3. Area Under the Plasma Concentration-time Curve From Time Zero to Infinity (AUC0-inf) of MEDI4920 [Pre-infusion, at the middle of the infusion, post-infusion (5 minutes, and 2, 6, and 12 hours) on Day 1; Days 2, 3, 5, 8, 15, 22, 29, 43, 57, 85, and 113 or early discontinuation visit, whichever occurred first]

    The area under the plasma concentration-time curve from time zero to infinity (AUC 0-inf) was estimated based on the plasma concentrations of MEDI4920. Standard deviation was calculated only if number of participants were more than or equal to 3.

  4. Dose-normalized AUC0-inf (AUC0-infinity/D) of MEDI4920 [Pre-infusion, at the middle of the infusion, post-infusion (5 minutes, and 2, 6, and 12 hours) on Day 1; Days 2, 3, 5, 8, 15, 22, 29, 43, 57, 85, and 113 or early discontinuation visit, whichever occurred first]

    The AUC (0-infinity)/D is the area under concentration-time curve extrapolated to infinity postdose normalized by MEDI4920 dose. The AUC (0-infinity)/D was estimated based on the plasma concentrations of MEDI4920. Standard deviation was calculated only if number of participants were more than or equal to 3.

  5. Terminal Elimination Half Life (t1/2) of MEDI4920 [Pre-infusion, at the middle of the infusion, post-infusion (5 minutes, and 2, 6, and 12 hours) on Day 1; Days 2, 3, 5, 8, 15, 22, 29, 43, 57, 85, and 113 or early discontinuation visit, whichever occurred first]

    The terminal elimination half-life (t1/2) was estimated based on the plasma concentrations of MEDI4920. Standard deviation was calculated only if number of participants were more than or equal to 3.

  6. Systemic Clearance (CL) of MEDI4920 [Pre-infusion, at the middle of the infusion, post-infusion (5 minutes, and 2, 6, and 12 hours) on Day 1; Days 2, 3, 5, 8, 15, 22, 29, 43, 57, 85, and 113 or early discontinuation visit, whichever occurred first]

    The systemic clearance (CL) was estimated based on the plasma concentrations of MEDI4920. Standard deviation was calculated only if number of participants were more than or equal to 3.

  7. Volume of Distribution at Steady-state (Vss) of MEDI4920 [Pre-infusion, at the middle of the infusion, post-infusion (5 minutes, and 2, 6, and 12 hours) on Day 1; Days 2, 3, 5, 8, 15, 22, 29, 43, 57, 85, and 113 or early discontinuation visit, whichever occurred first]

    The volume of distribution at steady-state (Vss) was estimated based on the plasma concentrations of MEDI4920. Standard deviation was calculated only if number of participants were more than or equal to 3.

  8. Volume of Distribution Based on Terminal Phase (Vz) of MEDI4920 [Pre-infusion, at the middle of the infusion, post-infusion (5 minutes, and 2, 6, and 12 hours) on Day 1; Days 2, 3, 5, 8, 15, 22, 29, 43, 57, 85, and 113 or early discontinuation visit, whichever occurred first]

    The volume of distribution based on terminal phase (Vz) was estimated based on the plasma concentrations of MEDI4920. Standard deviation was calculated only if number of participants were more than or equal to 3.

  9. Percentage of Participants Positive for Anti-drug Antibodies (ADA) [Baseline (pre-infusion on Day 1) and post-baseline Days 15, 29, 57, and 113 or early discontinuation visit, whichever occurred first]

    Plasma samples were collected for assessment of anti-drug antibodies (ADA) against MEDI4920. The incidence of positive serum antibodies to MEDI4920 are presented.

  10. T-cell Dependent Antibody Response (TDAR) Measured by Anti-keyhole Limpet Hemocyanin Immunoglobulin G (Anti-KLH IgG) Concentration [Day 43]

    The T-cell dependent antibody response (TDAR) assay measures the immune response (ie, antibody production) to an introduced antigen, keyhole limpet hemocyanin (KLH). The KLH is a potent immunostimulating protein with an extensive history of safe and effective use in vaccine development and immunological research. TDAR was evaluated by measuring anti-KLH IgG titers at a time point consistent with the expected timing for antibody responses following immunization. The primary time point for the analysis of the TDAR to KLH was Day 43. The data was presented for geometric mean ratio (MEDI4920/placebo) estimated from the dose response model.

Eligibility Criteria

Criteria

Ages Eligible for Study:
18 Years to 49 Years
Sexes Eligible for Study:
All
Accepts Healthy Volunteers:
Yes
Inclusion Criteria:
  • Healthy as determined by a responsible study physician based on medical evaluation

  • Body weight 40 to 100 kg

  • Body mass index 19.0 to 30.0 kg/m2

Exclusion Criteria:
  • History of allergy or sensitivity to Shellfish or protein based antigens

  • previous immunization with KLH

  • previous splenectomy

  • History of diagnosed or suspected thromboembolic event or coagulation disorder

Contacts and Locations

Locations

Site City State Country Postal Code
1 Research Site Leeds United Kingdom LS2 9LH

Sponsors and Collaborators

  • MedImmune LLC

Investigators

None specified.

Study Documents (Full-Text)

None provided.

More Information

Publications

None provided.
Responsible Party:
MedImmune LLC
ClinicalTrials.gov Identifier:
NCT02151110
Other Study ID Numbers:
  • D5100C00001
First Posted:
May 30, 2014
Last Update Posted:
Feb 15, 2019
Last Verified:
Sep 1, 2018
Studies a U.S. FDA-regulated Drug Product:
No
Studies a U.S. FDA-regulated Device Product:
No
Keywords provided by MedImmune LLC

Study Results

Participant Flow

Recruitment Details Healthy adult male and female participants were recruited in a blinded manner. The study was conducted at one site in the United Kingdom.
Pre-assignment Detail A total of 259 participants were screened of which 200 participants were considered screen failures and the remaining 59 participants were randomized. Out of which, 56 participants were treated
Arm/Group Title Placebo MEDI4920 3 mg MEDI4920 10 mg MEDI4920 30 mg MEDI4920 100 mg MEDI4920 300 mg MEDI4920 1000 mg MEDI4920 3000 mg
Arm/Group Description Participants received single IV dose of placebo matching with MEDI4920 infused on Day 1. Participants received single IV dose of MEDI4920 3 milligram (mg) infused on Day 1. Participants received single IV dose of MEDI4920 10 mg infused on Day 1. Participants received single IV dose of MEDI4920 30 mg infused on Day 1. Participants received single IV dose of MEDI4920 100 mg infused on Day 1. Participants received single IV dose of MEDI4920 300 mg infused on Day 1. Participants received single IV dose of MEDI4920 1000 mg infused on Day 1. Participants received single IV dose of MEDI4920 3000 mg infused on Day 1.
Period Title: Overall Study
STARTED 12 2 2 8 8 8 8 8
COMPLETED 12 2 2 8 8 8 8 5
NOT COMPLETED 0 0 0 0 0 0 0 3

Baseline Characteristics

Arm/Group Title Placebo MEDI4920 3 mg MEDI4920 10 mg MEDI4920 30 mg MEDI4920 100 mg MEDI4920 300 mg MEDI4920 1000 mg MEDI4920 3000 mg TOTAL
Arm/Group Description Participants received single IV dose of placebo matching with MEDI4920 infused on Day 1. Participants received single IV dose of MEDI4920 3 milligram (mg) infused on Day 1. Participants received single IV dose of MEDI4920 10 mg infused on Day 1. Participants received single IV dose of MEDI4920 30 mg infused on Day 1. Participants received single IV dose of MEDI4920 100 mg infused on Day 1. Participants received single IV dose of MEDI4920 300 mg infused on Day 1. Participants received single IV dose of MEDI4920 1000 mg infused on Day 1. Participants received single IV dose of MEDI4920 3000 mg infused on Day 1. Total of all reporting groups
Overall Participants 12 2 2 8 8 8 8 8 56
Age (Years) [Mean (Standard Deviation) ]
Mean (Standard Deviation) [Years]
33.3
(8.9)
27.5
(4.9)
26.0
(1.4)
27.8
(12.3)
28.1
(10.1)
38.4
(9.3)
33.3
(9.2)
32.0
(9.8)
31.8
(9.8)
Sex: Female, Male (Count of Participants)
Female
0
0%
0
0%
0
0%
0
0%
0
0%
0
0%
0
0%
0
0%
0
0%
Male
12
100%
2
100%
2
100%
8
100%
8
100%
8
100%
8
100%
8
100%
56
100%

Outcome Measures

1. Primary Outcome
Title Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Treatment Emergent Serious Adverse Events (TESAEs)
Description An adverse event (AE) is any unfavourable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with the use of study drug, whether or not considered related to the study drug. A serious adverse event (SAE) is an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening situation (immediate risk of dying); persistent or significant disability or incapacity; congenital anomaly or birth defect in the offspring of a participant who received the study drug. A TEAE is defined as the event with onset after the start of infusion (Day 1) to Day 113 or early discontinuation visit inclusive. The AEs were summarized using Medical Dictionary for Regulatory Activities version 19.0.
Time Frame The start of study drug administration (Day 1) to the follow-up period (Day 113) or early discontinuation visit

Outcome Measure Data

Analysis Population Description
As-treated Population: All participants who received any study drug were included in this population
Arm/Group Title Placebo MEDI4920 3 mg MEDI4920 10 mg MEDI4920 30 mg MEDI4920 100 mg MEDI4920 300 mg MEDI4920 1000 mg MEDI4920 3000 mg
Arm/Group Description Participants received single IV dose of placebo matching with MEDI4920 infused on Day 1. Participants received single IV dose of MEDI4920 3 milligram (mg) infused on Day 1. Participants received single IV dose of MEDI4920 10 mg infused on Day 1. Participants received single IV dose of MEDI4920 30 mg infused on Day 1. Participants received single IV dose of MEDI4920 100 mg infused on Day 1. Participants received single IV dose of MEDI4920 300 mg infused on Day 1. Participants received single IV dose of MEDI4920 1000 mg infused on Day 1. Participants received single IV dose of MEDI4920 3000 mg infused on Day 1.
Measure Participants 12 2 2 8 8 8 8 8
TEAEs
10
83.3%
1
50%
1
50%
5
62.5%
8
100%
3
37.5%
5
62.5%
7
87.5%
TESAEs
1
8.3%
0
0%
0
0%
0
0%
0
0%
0
0%
0
0%
0
0%
2. Secondary Outcome
Title Maximum Observed Plasma Concentration (Cmax) of MEDI4920
Description The maximum observed plasma concentration (Cmax) was estimated based on the plasma concentrations of MEDI4920. Standard deviation was calculated only if number of participants were more than or equal to 3.
Time Frame Pre-infusion, at the middle of the infusion, post-infusion (5 minutes, and 2, 6, and 12 hours) on Day 1; Days 2, 3, 5, 8, 15, 22, 29, 43, 57, 85, and 113 or early discontinuation visit, whichever occurred first

Outcome Measure Data

Analysis Population Description
As-treated Population
Arm/Group Title MEDI4920 3 mg MEDI4920 10 mg MEDI4920 30 mg MEDI4920 100 mg MEDI4920 300 mg MEDI4920 1000 mg MEDI4920 3000 mg
Arm/Group Description Participants received single IV dose of MEDI4920 3 milligram (mg) infused on Day 1. Participants received single IV dose of MEDI4920 10 mg infused on Day 1. Participants received single IV dose of MEDI4920 30 mg infused on Day 1. Participants received single IV dose of MEDI4920 100 mg infused on Day 1. Participants received single IV dose of MEDI4920 300 mg infused on Day 1. Participants received single IV dose of MEDI4920 1000 mg infused on Day 1. Participants received single IV dose of MEDI4920 3000 mg infused on Day 1.
Measure Participants 2 2 8 8 8 8 8
Mean (Standard Deviation) [microgram per milliliter (µg/mL)]
1.00
(NA)
4.46
(NA)
7.97
(0.873)
23.6
(2.76)
85.6
(17.6)
289
(58.1)
960
(126)
3. Secondary Outcome
Title Area Under the Plasma Concentration-time Curve From Time Zero to the Time of the Last Quantifiable Concentration (AUC0-last) of MEDI4920
Description The area under the plasma concentration-time curve from time zero to the time of the last quantifiable concentration (AUC0-last) was estimated based on the plasma concentrations of MEDI4920. Standard deviation was calculated only if number of participants were more than or equal to 3.
Time Frame Pre-infusion, at the middle of the infusion, post-infusion (5 minutes, and 2, 6, and 12 hours) on Day 1; Days 2, 3, 5, 8, 15, 22, 29, 43, 57, 85, and 113 or early discontinuation visit, whichever occurred first

Outcome Measure Data

Analysis Population Description
As-treated Population
Arm/Group Title MEDI4920 3 mg MEDI4920 10 mg MEDI4920 30 mg MEDI4920 100 mg MEDI4920 300 mg MEDI4920 1000 mg MEDI4920 3000 mg
Arm/Group Description Participants received single IV dose of MEDI4920 3 milligram (mg) infused on Day 1. Participants received single IV dose of MEDI4920 10 mg infused on Day 1. Participants received single IV dose of MEDI4920 30 mg infused on Day 1. Participants received single IV dose of MEDI4920 100 mg infused on Day 1. Participants received single IV dose of MEDI4920 300 mg infused on Day 1. Participants received single IV dose of MEDI4920 1000 mg infused on Day 1. Participants received single IV dose of MEDI4920 3000 mg infused on Day 1.
Measure Participants 2 2 8 8 8 8 8
Mean (Standard Deviation) [microgram*day per milliliter (µg*d/mL)]
3.64
(NA)
19.3
(NA)
53.4
(10.9)
151
(20.2)
581
(38.3)
2090
(394)
6640
(553)
4. Secondary Outcome
Title Area Under the Plasma Concentration-time Curve From Time Zero to Infinity (AUC0-inf) of MEDI4920
Description The area under the plasma concentration-time curve from time zero to infinity (AUC 0-inf) was estimated based on the plasma concentrations of MEDI4920. Standard deviation was calculated only if number of participants were more than or equal to 3.
Time Frame Pre-infusion, at the middle of the infusion, post-infusion (5 minutes, and 2, 6, and 12 hours) on Day 1; Days 2, 3, 5, 8, 15, 22, 29, 43, 57, 85, and 113 or early discontinuation visit, whichever occurred first

Outcome Measure Data

Analysis Population Description
As-treated Population
Arm/Group Title MEDI4920 3 mg MEDI4920 10 mg MEDI4920 30 mg MEDI4920 100 mg MEDI4920 300 mg MEDI4920 1000 mg MEDI4920 3000 mg
Arm/Group Description Participants received single IV dose of MEDI4920 3 milligram (mg) infused on Day 1. Participants received single IV dose of MEDI4920 10 mg infused on Day 1. Participants received single IV dose of MEDI4920 30 mg infused on Day 1. Participants received single IV dose of MEDI4920 100 mg infused on Day 1. Participants received single IV dose of MEDI4920 300 mg infused on Day 1. Participants received single IV dose of MEDI4920 1000 mg infused on Day 1. Participants received single IV dose of MEDI4920 3000 mg infused on Day 1.
Measure Participants 2 2 8 8 8 8 8
Mean (Standard Deviation) [microgram*day per milliliter (µg*d/mL)]
4.60
(NA)
20.5
(NA)
54.8
(11.0)
152
(20.2)
583
(37.8)
2090
(394)
6640
(547)
5. Secondary Outcome
Title Dose-normalized AUC0-inf (AUC0-infinity/D) of MEDI4920
Description The AUC (0-infinity)/D is the area under concentration-time curve extrapolated to infinity postdose normalized by MEDI4920 dose. The AUC (0-infinity)/D was estimated based on the plasma concentrations of MEDI4920. Standard deviation was calculated only if number of participants were more than or equal to 3.
Time Frame Pre-infusion, at the middle of the infusion, post-infusion (5 minutes, and 2, 6, and 12 hours) on Day 1; Days 2, 3, 5, 8, 15, 22, 29, 43, 57, 85, and 113 or early discontinuation visit, whichever occurred first

Outcome Measure Data

Analysis Population Description
As-treated Population
Arm/Group Title MEDI4920 3 mg MEDI4920 10 mg MEDI4920 30 mg MEDI4920 100 mg MEDI4920 300 mg MEDI4920 1000 mg MEDI4920 3000 mg
Arm/Group Description Participants received single IV dose of MEDI4920 3 milligram (mg) infused on Day 1. Participants received single IV dose of MEDI4920 10 mg infused on Day 1. Participants received single IV dose of MEDI4920 30 mg infused on Day 1. Participants received single IV dose of MEDI4920 100 mg infused on Day 1. Participants received single IV dose of MEDI4920 300 mg infused on Day 1. Participants received single IV dose of MEDI4920 1000 mg infused on Day 1. Participants received single IV dose of MEDI4920 3000 mg infused on Day 1.
Measure Participants 2 2 8 8 8 8 8
Mean (Standard Deviation) [µg*d/mL/mg]
1.53
(NA)
2.05
(NA)
1.83
(0.366)
1.52
(0.202)
1.94
(0.126)
2.09
(0.394)
2.21
(0.182)
6. Secondary Outcome
Title Terminal Elimination Half Life (t1/2) of MEDI4920
Description The terminal elimination half-life (t1/2) was estimated based on the plasma concentrations of MEDI4920. Standard deviation was calculated only if number of participants were more than or equal to 3.
Time Frame Pre-infusion, at the middle of the infusion, post-infusion (5 minutes, and 2, 6, and 12 hours) on Day 1; Days 2, 3, 5, 8, 15, 22, 29, 43, 57, 85, and 113 or early discontinuation visit, whichever occurred first

Outcome Measure Data

Analysis Population Description
As-treated Population
Arm/Group Title MEDI4920 3 mg MEDI4920 10 mg MEDI4920 30 mg MEDI4920 100 mg MEDI4920 300 mg MEDI4920 1000 mg MEDI4920 3000 mg
Arm/Group Description Participants received single IV dose of MEDI4920 3 milligram (mg) infused on Day 1. Participants received single IV dose of MEDI4920 10 mg infused on Day 1. Participants received single IV dose of MEDI4920 30 mg infused on Day 1. Participants received single IV dose of MEDI4920 100 mg infused on Day 1. Participants received single IV dose of MEDI4920 300 mg infused on Day 1. Participants received single IV dose of MEDI4920 1000 mg infused on Day 1. Participants received single IV dose of MEDI4920 3000 mg infused on Day 1.
Measure Participants 2 2 8 8 8 8 8
Mean (Standard Deviation) [Day(s)]
4.41
(NA)
5.35
(NA)
5.31
(2.30)
5.49
(1.59)
8.86
(1.60)
9.68
(1.25)
10.1
(1.87)
7. Secondary Outcome
Title Systemic Clearance (CL) of MEDI4920
Description The systemic clearance (CL) was estimated based on the plasma concentrations of MEDI4920. Standard deviation was calculated only if number of participants were more than or equal to 3.
Time Frame Pre-infusion, at the middle of the infusion, post-infusion (5 minutes, and 2, 6, and 12 hours) on Day 1; Days 2, 3, 5, 8, 15, 22, 29, 43, 57, 85, and 113 or early discontinuation visit, whichever occurred first

Outcome Measure Data

Analysis Population Description
As-treated Population
Arm/Group Title MEDI4920 3 mg MEDI4920 10 mg MEDI4920 30 mg MEDI4920 100 mg MEDI4920 300 mg MEDI4920 1000 mg MEDI4920 3000 mg
Arm/Group Description Participants received single IV dose of MEDI4920 3 milligram (mg) infused on Day 1. Participants received single IV dose of MEDI4920 10 mg infused on Day 1. Participants received single IV dose of MEDI4920 30 mg infused on Day 1. Participants received single IV dose of MEDI4920 100 mg infused on Day 1. Participants received single IV dose of MEDI4920 300 mg infused on Day 1. Participants received single IV dose of MEDI4920 1000 mg infused on Day 1. Participants received single IV dose of MEDI4920 3000 mg infused on Day 1.
Measure Participants 2 2 8 8 8 8 8
Mean (Standard Deviation) [milliliter per day (mL/day)]
661
(NA)
487
(NA)
564
(96.8)
668
(90.4)
517
(33.5)
494
(102)
454
(37.9)
8. Secondary Outcome
Title Volume of Distribution at Steady-state (Vss) of MEDI4920
Description The volume of distribution at steady-state (Vss) was estimated based on the plasma concentrations of MEDI4920. Standard deviation was calculated only if number of participants were more than or equal to 3.
Time Frame Pre-infusion, at the middle of the infusion, post-infusion (5 minutes, and 2, 6, and 12 hours) on Day 1; Days 2, 3, 5, 8, 15, 22, 29, 43, 57, 85, and 113 or early discontinuation visit, whichever occurred first

Outcome Measure Data

Analysis Population Description
As-treated Population
Arm/Group Title MEDI4920 3 mg MEDI4920 10 mg MEDI4920 30 mg MEDI4920 100 mg MEDI4920 300 mg MEDI4920 1000 mg MEDI4920 3000 mg
Arm/Group Description Participants received single IV dose of MEDI4920 3 milligram (mg) infused on Day 1. Participants received single IV dose of MEDI4920 10 mg infused on Day 1. Participants received single IV dose of MEDI4920 30 mg infused on Day 1. Participants received single IV dose of MEDI4920 100 mg infused on Day 1. Participants received single IV dose of MEDI4920 300 mg infused on Day 1. Participants received single IV dose of MEDI4920 1000 mg infused on Day 1. Participants received single IV dose of MEDI4920 3000 mg infused on Day 1.
Measure Participants 2 2 8 8 8 8 8
Mean (Standard Deviation) [milliliter (mL)]
3980
(NA)
3290
(NA)
4280
(684)
5560
(806)
5180
(811)
5450
(1150)
4900
(715)
9. Secondary Outcome
Title Volume of Distribution Based on Terminal Phase (Vz) of MEDI4920
Description The volume of distribution based on terminal phase (Vz) was estimated based on the plasma concentrations of MEDI4920. Standard deviation was calculated only if number of participants were more than or equal to 3.
Time Frame Pre-infusion, at the middle of the infusion, post-infusion (5 minutes, and 2, 6, and 12 hours) on Day 1; Days 2, 3, 5, 8, 15, 22, 29, 43, 57, 85, and 113 or early discontinuation visit, whichever occurred first

Outcome Measure Data

Analysis Population Description
As-treated Population
Arm/Group Title MEDI4920 3 mg MEDI4920 10 mg MEDI4920 30 mg MEDI4920 100 mg MEDI4920 300 mg MEDI4920 1000 mg MEDI4920 3000 mg
Arm/Group Description Participants received single IV dose of MEDI4920 3 milligram (mg) infused on Day 1. Participants received single IV dose of MEDI4920 10 mg infused on Day 1. Participants received single IV dose of MEDI4920 30 mg infused on Day 1. Participants received single IV dose of MEDI4920 100 mg infused on Day 1. Participants received single IV dose of MEDI4920 300 mg infused on Day 1. Participants received single IV dose of MEDI4920 1000 mg infused on Day 1. Participants received single IV dose of MEDI4920 3000 mg infused on Day 1.
Measure Participants 2 2 8 8 8 8 8
Mean (Standard Deviation) [milliliter (mL)]
4130
(NA)
3760
(NA)
4080
(1090)
5230
(1360)
6590
(1160)
6880
(1520)
6600
(1190)
10. Secondary Outcome
Title Percentage of Participants Positive for Anti-drug Antibodies (ADA)
Description Plasma samples were collected for assessment of anti-drug antibodies (ADA) against MEDI4920. The incidence of positive serum antibodies to MEDI4920 are presented.
Time Frame Baseline (pre-infusion on Day 1) and post-baseline Days 15, 29, 57, and 113 or early discontinuation visit, whichever occurred first

Outcome Measure Data

Analysis Population Description
As-treated Population.
Arm/Group Title Placebo MEDI4920 3 mg MEDI4920 10 mg MEDI4920 30 mg MEDI4920 100 mg MEDI4920 300 mg MEDI4920 1000 mg MEDI4920 3000 mg
Arm/Group Description Participants received single IV dose of placebo matching with MEDI4920 infused on Day 1. Participants received single IV dose of MEDI4920 3 milligram (mg) infused on Day 1. Participants received single IV dose of MEDI4920 10 mg infused on Day 1. Participants received single IV dose of MEDI4920 30 mg infused on Day 1. Participants received single IV dose of MEDI4920 100 mg infused on Day 1. Participants received single IV dose of MEDI4920 300 mg infused on Day 1. Participants received single IV dose of MEDI4920 1000 mg infused on Day 1. Participants received single IV dose of MEDI4920 3000 mg infused on Day 1.
Measure Participants 12 2 2 8 8 8 8 8
Baseline ADA positive
16.7
139.2%
0
0%
0
0%
0
0%
0
0%
0
0%
0
0%
0
0%
Post-baseline ADA positive
8.3
69.2%
50
2500%
100
5000%
100
1250%
87.5
1093.8%
37.5
468.8%
37.5
468.8%
12.5
156.3%
11. Secondary Outcome
Title T-cell Dependent Antibody Response (TDAR) Measured by Anti-keyhole Limpet Hemocyanin Immunoglobulin G (Anti-KLH IgG) Concentration
Description The T-cell dependent antibody response (TDAR) assay measures the immune response (ie, antibody production) to an introduced antigen, keyhole limpet hemocyanin (KLH). The KLH is a potent immunostimulating protein with an extensive history of safe and effective use in vaccine development and immunological research. TDAR was evaluated by measuring anti-KLH IgG titers at a time point consistent with the expected timing for antibody responses following immunization. The primary time point for the analysis of the TDAR to KLH was Day 43. The data was presented for geometric mean ratio (MEDI4920/placebo) estimated from the dose response model.
Time Frame Day 43

Outcome Measure Data

Analysis Population Description
As-treated Population.
Arm/Group Title Placebo MEDI4920 3 mg MEDI4920 10 mg MEDI4920 30 mg MEDI4920 100 mg MEDI4920 300 mg MEDI4920 1000 mg MEDI4920 3000 mg
Arm/Group Description Participants received single IV dose of placebo matching with MEDI4920 infused on Day 1. Participants received single IV dose of MEDI4920 3 milligram (mg) infused on Day 1. Participants received single IV dose of MEDI4920 10 mg infused on Day 1. Participants received single IV dose of MEDI4920 30 mg infused on Day 1. Participants received single IV dose of MEDI4920 100 mg infused on Day 1. Participants received single IV dose of MEDI4920 300 mg infused on Day 1. Participants received single IV dose of MEDI4920 1000 mg infused on Day 1. Participants received single IV dose of MEDI4920 3000 mg infused on Day 1.
Measure Participants 11 2 2 8 7 8 8 8
Geometric Mean (95% Confidence Interval) [nanogram per milliliter (ng/mL)]
NA
0.99
0.96
0.88
0.68
0.42
0.22
0.14

Adverse Events

Time Frame Adverse events were collected from time of signature of informed consent, throughout the treatment period, and the follow-up period (through Day 113 or early discontinuation visit).
Adverse Event Reporting Description
Arm/Group Title Placebo MEDI4920 3 mg MEDI4920 10 mg MEDI4920 30 mg MEDI4920 100 mg MEDI4920 300 mg MEDI4920 1000 mg MEDI4920 3000 mg
Arm/Group Description Participants received single IV dose of placebo matching with MEDI4920 infused on Day 1. Participants received single IV dose of MEDI4920 3 milligram (mg) infused on Day 1. Participants received single IV dose of MEDI4920 10 mg infused on Day 1. Participants received single IV dose of MEDI4920 30 mg infused on Day 1. Participants received single IV dose of MEDI4920 100 mg infused on Day 1. Participants received single IV dose of MEDI4920 300 mg infused on Day 1. Participants received single IV dose of MEDI4920 1000 mg infused on Day 1. Participants received single IV dose of MEDI4920 3000 mg infused on Day 1.
All Cause Mortality
Placebo MEDI4920 3 mg MEDI4920 10 mg MEDI4920 30 mg MEDI4920 100 mg MEDI4920 300 mg MEDI4920 1000 mg MEDI4920 3000 mg
Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total 0/12 (0%) 0/2 (0%) 0/2 (0%) 0/8 (0%) 0/8 (0%) 0/8 (0%) 0/8 (0%) 0/8 (0%)
Serious Adverse Events
Placebo MEDI4920 3 mg MEDI4920 10 mg MEDI4920 30 mg MEDI4920 100 mg MEDI4920 300 mg MEDI4920 1000 mg MEDI4920 3000 mg
Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total 1/12 (8.3%) 0/2 (0%) 0/2 (0%) 0/8 (0%) 0/8 (0%) 0/8 (0%) 0/8 (0%) 0/8 (0%)
Injury, poisoning and procedural complications
Tibia fracture 1/12 (8.3%) 1 0/2 (0%) 0 0/2 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0
Other (Not Including Serious) Adverse Events
Placebo MEDI4920 3 mg MEDI4920 10 mg MEDI4920 30 mg MEDI4920 100 mg MEDI4920 300 mg MEDI4920 1000 mg MEDI4920 3000 mg
Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total 10/12 (83.3%) 1/2 (50%) 1/2 (50%) 5/8 (62.5%) 8/8 (100%) 3/8 (37.5%) 5/8 (62.5%) 7/8 (87.5%)
Ear and labyrinth disorders
Ear discomfort 0/12 (0%) 0 0/2 (0%) 0 0/2 (0%) 0 0/8 (0%) 0 2/8 (25%) 2 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0
Eye disorders
Blepharitis 0/12 (0%) 0 1/2 (50%) 1 0/2 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0
Eye inflammation 1/12 (8.3%) 1 0/2 (0%) 0 0/2 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0
Ocular hyperaemia 0/12 (0%) 0 0/2 (0%) 0 0/2 (0%) 0 0/8 (0%) 0 1/8 (12.5%) 1 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0
Vision blurred 1/12 (8.3%) 1 0/2 (0%) 0 0/2 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0
Gastrointestinal disorders
Abdominal pain 0/12 (0%) 0 0/2 (0%) 0 0/2 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 1/8 (12.5%) 1 0/8 (0%) 0 1/8 (12.5%) 1
Diarrhoea 0/12 (0%) 0 0/2 (0%) 0 1/2 (50%) 1 0/8 (0%) 0 0/8 (0%) 0 1/8 (12.5%) 1 2/8 (25%) 2 1/8 (12.5%) 1
Nausea 0/12 (0%) 0 0/2 (0%) 0 0/2 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 1/8 (12.5%) 1 0/8 (0%) 0 0/8 (0%) 0
Toothache 0/12 (0%) 0 0/2 (0%) 0 0/2 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 1/8 (12.5%) 1 0/8 (0%) 0
Vomiting 1/12 (8.3%) 1 0/2 (0%) 0 1/2 (50%) 1 0/8 (0%) 0 0/8 (0%) 0 1/8 (12.5%) 1 0/8 (0%) 0 0/8 (0%) 0
General disorders
Fatigue 1/12 (8.3%) 2 0/2 (0%) 0 0/2 (0%) 0 1/8 (12.5%) 1 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0
Feeling hot 1/12 (8.3%) 1 0/2 (0%) 0 0/2 (0%) 0 0/8 (0%) 0 1/8 (12.5%) 1 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0
Immune system disorders
Seasonal allergy 1/12 (8.3%) 1 0/2 (0%) 0 0/2 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0
Infections and infestations
Herpes zoster 0/12 (0%) 0 0/2 (0%) 0 0/2 (0%) 0 1/8 (12.5%) 1 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0
Hordeolum 0/12 (0%) 0 1/2 (50%) 1 0/2 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0
Influenza 0/12 (0%) 0 0/2 (0%) 0 0/2 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 1/8 (12.5%) 1 0/8 (0%) 0
Nasopharyngitis 1/12 (8.3%) 1 0/2 (0%) 0 1/2 (50%) 1 0/8 (0%) 0 5/8 (62.5%) 5 1/8 (12.5%) 1 1/8 (12.5%) 1 2/8 (25%) 2
Oral herpes 1/12 (8.3%) 2 0/2 (0%) 0 0/2 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 2/8 (25%) 2
Rash pustular 0/12 (0%) 0 0/2 (0%) 0 0/2 (0%) 0 0/8 (0%) 0 1/8 (12.5%) 1 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0
Injury, poisoning and procedural complications
Arthropod bite 0/12 (0%) 0 0/2 (0%) 0 0/2 (0%) 0 0/8 (0%) 0 1/8 (12.5%) 1 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0
Joint dislocation 0/12 (0%) 0 0/2 (0%) 0 0/2 (0%) 0 0/8 (0%) 0 1/8 (12.5%) 1 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0
Metabolism and nutrition disorders
Decreased appetite 0/12 (0%) 0 0/2 (0%) 0 0/2 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 1/8 (12.5%) 1
Musculoskeletal and connective tissue disorders
Back pain 0/12 (0%) 0 0/2 (0%) 0 0/2 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 1/8 (12.5%) 1 0/8 (0%) 0
Musculoskeletal stiffness 1/12 (8.3%) 1 0/2 (0%) 0 0/2 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0
Neck pain 0/12 (0%) 0 0/2 (0%) 0 0/2 (0%) 0 0/8 (0%) 0 1/8 (12.5%) 1 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0
Nervous system disorders
Dizziness 2/12 (16.7%) 2 0/2 (0%) 0 0/2 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0
Headache 4/12 (33.3%) 4 0/2 (0%) 0 1/2 (50%) 2 2/8 (25%) 3 0/8 (0%) 0 1/8 (12.5%) 1 1/8 (12.5%) 2 3/8 (37.5%) 3
Memory impairment 0/12 (0%) 0 1/2 (50%) 1 0/2 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0
Migraine 0/12 (0%) 0 0/2 (0%) 0 0/2 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 1/8 (12.5%) 1
Paraesthesia 0/12 (0%) 0 0/2 (0%) 0 0/2 (0%) 0 0/8 (0%) 0 1/8 (12.5%) 1 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0
Product Issues
Device failure 1/12 (8.3%) 1 0/2 (0%) 0 0/2 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0
Respiratory, thoracic and mediastinal disorders
Cough 1/12 (8.3%) 1 0/2 (0%) 0 0/2 (0%) 0 1/8 (12.5%) 1 1/8 (12.5%) 1 0/8 (0%) 0 1/8 (12.5%) 1 0/8 (0%) 0
Nasal congestion 1/12 (8.3%) 1 0/2 (0%) 0 1/2 (50%) 1 0/8 (0%) 0 1/8 (12.5%) 1 0/8 (0%) 0 0/8 (0%) 0 1/8 (12.5%) 1
Oropharyngeal pain 1/12 (8.3%) 1 0/2 (0%) 0 1/2 (50%) 1 1/8 (12.5%) 1 1/8 (12.5%) 1 0/8 (0%) 0 0/8 (0%) 0 1/8 (12.5%) 1
Rhinorrhoea 1/12 (8.3%) 2 0/2 (0%) 0 0/2 (0%) 0 1/8 (12.5%) 1 0/8 (0%) 0 0/8 (0%) 0 1/8 (12.5%) 1 1/8 (12.5%) 1
Skin and subcutaneous tissue disorders
Eczema 0/12 (0%) 0 0/2 (0%) 0 0/2 (0%) 0 1/8 (12.5%) 1 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0
Hyperhidrosis 0/12 (0%) 0 0/2 (0%) 0 0/2 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 1/8 (12.5%) 1 0/8 (0%) 0 0/8 (0%) 0
Night sweats 1/12 (8.3%) 1 0/2 (0%) 0 0/2 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0 0/8 (0%) 0

Limitations/Caveats

[Not Specified]

More Information

Certain Agreements

Principal Investigators are NOT employed by the organization sponsoring the study.

MedImmune has 60 days to review results communications prior to public release and may delete information that compromises ongoing studies or is considered proprietary. This restriction is not intended to compromise the objective scientific integrity of the manuscript, it being understood that results shall be published regardless of outcome.

Results Point of Contact

Name/Title David Howe, MBChB, MD, MRCOG
Organization MedImmune LLC
Phone +44 (0) 1223 895980
Email information.center@astrazenea.com
Responsible Party:
MedImmune LLC
ClinicalTrials.gov Identifier:
NCT02151110
Other Study ID Numbers:
  • D5100C00001
First Posted:
May 30, 2014
Last Update Posted:
Feb 15, 2019
Last Verified:
Sep 1, 2018