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AZD0543

Phase 1

Human Metapneumovirus Infection | Monoclonal antibody | Other |AstraZeneca PLC|Last Updated: Sep 17, 2026

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials1
Total Enrollment144

FDA Designations

No designations recorded

Clinical trial landscape

AZD0543 · 1 trial · 1 indication

Phase 1 1
NCT07824622Study of Safety and PK of AZD0543 in Healthy AdultsHuman Metapneumovirus Infection
RECRUITING144 Analytics
PHASE1RECRUITING
Study of Safety and PK of AZD0543 in Healthy Adults
Human Metapneumovirus InfectionUnlock trial analytics

Study Endpoints

Primary Endpoints

Immediate AEs within 1 hour of IMP administration
Within 1 hour of IMP administration

To assess the safety of AZD0543 administered as a single IM or IV dose compared to placebo

Injection/infusion-related reactions
Within 24 hours of IMP administration

To assess the safety of AZD0543 administered as a single IM or IV dose compared to placebo

Injection/infusion site reactions
Through Day 8 post-IMP administration

To assess the safety of AZD0543 administered as a single IM or IV dose compared to placebo

AEs
Through Day 91 post-IMP administration

To assess the safety of AZD0543 administered as a single IM or IV dose compared to placebo

SAEs, MAAEs, and AESIs
Throughout the study post-IMP administration

To assess the safety of AZD0543 administered as a single IM or IV dose compared to placebo

Secondary Endpoints

AZD0543 serum concentrations over time
Study Day 1 baseline/post-dose; Study Day 2, 4, 8, 31, 91, 151, 271, 361
AZD0543 Cmax
Study Day 1 baseline/post-dose; Study Day 2, 4, 8, 31, 91, 151, 271, 361
AZD0543 Tmax
Study Day 1 baseline/post-dose; Study Day 2, 4, 8, 31, 91, 151, 271, 361
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposePREVENTION

Treatment Arms

ArmTypeDescription
Cohort 1: Low Dose AZD0543EXPERIMENTALParticipants will receive a single AZD0543 dose.
Cohort 1: PlaceboPLACEBO_COMPARATORParticipants will receive a single dose of placebo.
Cohort 2: Medium Dose AZD0543EXPERIMENTALParticipants will receive a single AZD0543 dose.
Cohort 2: PlaceboPLACEBO_COMPARATORParticipants will receive a single dose of placebo.
Cohort 3: High Dose AZD0543EXPERIMENTALParticipants will receive a single AZD0543 dose.
Cohort 3: PlaceboPLACEBO_COMPARATORParticipants will receive a single dose of placebo.

Interventions

NameTypeDescription
AZD0543BIOLOGICALSterile solution for injection or infusion administered as a single IM or IV dose on Day 1.
PlaceboOTHERVolume-matched 0.9% (w/v) sterile saline solution for injection or infusion administered as a single IM or IV dose on Day 1.
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Eligibility Criteria

Age Range18 Years to 55 Years
SexALL
Healthy VolunteersYes
Study Sites2

Key Inclusion Criteria: * Age 18 to 55 years * Body weight ≥ 45 kg and ≤ 110 kg and BMI within the range ≥ 18.0 kg/m2 to ≤ 30 kg/m2 Key Exclusion Criteria: * Hypersensitivity to IMP/components * Severe adverse reaction/hypersensitivity to other mAbs * Acute fever/illness/infection within 3 days o...

Countries:United States
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Recent Changes (Last 90 Days)

LOWSep 17, 2026NCT07824622NEW_TRIAL: changed
LOWSep 17, 2026NCT07824622NEW_TRIAL: changed